During his business management career, Coach Roberts was working for Fortune 500s. Not willing to fade into obscurity during his retirement, he's formulated a plan. With the help of Kamberlan Genomics, he'll turn both the teams he's coaching into state champions. 

Given the non-peer-reviewed articles Kamberlan Genomics provided, Coach Roberts thinks there's minimal risk to the eight seniors he's picked for modification. But he's no scientist and his planned secret gene splicing lock-in becomes an orgy of gender-bending transformation. By the end of it all, these seniors will look a lot more like pinup models of the team mascot than High School athletes.


Mustangs Must Win
By Zmeydros
(Edited by Wolfleah and Secretskunk)

No business in the town of Mountaineer had a new sign. The cute ice cream shop had the same sign it had in the nineties and the printing business next to it had been closed for a decade. There were only two cafes in town. One looked really pretty, but the food had no flavor and most of its business came from the fact it had the only espresso machine in town. The other cafe was always packed with diners who had nothing to do other than chat the day away. There was little to no industry. It was a town on the way to other places with no relevance or importance of its own.

Coach Roberts gripped the steering wheel tighter. A year ago, if someone had told him he'd be forcibly retired and back in his hometown, he would've had a good laugh. He glanced at his reflection in the rear-view mirror briefly as he waited at one of the town's six-remaining stoplights. He'd shaved his head bald and had a long graying beard that had been trimmed into a tidy smooth curve at the bottom. He had more gray hairs in his eyebrows than his beard, an annoying trait he got from his father's side of the family. His nose was wide and so was his neck. The extra pounds he'd gained from the stress of his forced retirement made him look less imposing than he'd be otherwise.

He turned right just after the football field, passing the twin twenty-foot-tall posts that held a wide rectangular sign. Emblazoned on the sign was white text on a dark red background saying "Home of the Mustangs." To the right of the words was a stylized horse head with a tousled mane as the logo. After glancing at the sign, he put on a confident smirk: he wasn't content to fade into obscurity. He was about to sow the seeds that would put him, and this town, on the map again.

The rudimentary high school building had white pillars holding up a metal awning that went all the way across the front, to protect people from the rain as they made their way in. The building wasn't even made of proper bricks, it was made of cement blocks painted the color of bricks. The result was a somewhat pleasing color, but without the prestige of an actual brick building. The parking lot was empty because school activities had long since ended for the day. It was just after sunset and the street lights had just come on.

Coach Roberts parked in one of the reserved faculty slots out front and made his way under the awning. Just in front of the simple glass and steel double doors that entered the school was a man in a deep blue business suit with faint gray pinstripes and a flashy cyan tie. His slightly wavy hair parted in the middle and arched exactly like Hugh Grant's hair. In fact, the guy looked a lot like Hugh Grant overall, complete with piercing blue eyes. The biggest difference was he had a much more angular chin. On his deep brown leather briefcase was a cyan logo that matched the color of his tie. It looked like a ladder that had been cut into three sections and two more sections were being spliced in. A thin-lined square surrounded the logo and across the bottom of that square was the company name, "Kamberlan Genomics."

The Coach smiled as he walked up to the man. Reaching out with his right hand, he got in a good, firm handshake. "Mr. Gentalen, so nice to see you again."

"The pleasure's all mine." Mr. Gentalen patted the Coach's arm before releasing the handshake. He motioned toward the high school's entrance. "Shall we get down to business?"

After stepping through the polished steel double doors, their footsteps echoed loudly in the empty halls. The flooring was industrial polished concrete, like the floor of a Wal-Mart. The only saving grace was that terra-cotta-colored dye had been added to it to contrast with the white walls and rows of gray lockers. 

They turned right at the office and then followed the hallway straight, until the doors for the locker rooms were in front of them. Then they went to their left and Coach Roberts unlocked his office door.

It was a small office, filled with photos of past athletes that had won awards or scholarships to colleges. Team banners with the feisty-looking Mustangs logo and big foam hands to cheer with were also on the walls. A baseball was on his desk, signed by a team that got to the baseball semi-finals thirty years ago.

Pulling out one of the plastic and metal folding chairs that sat in front of his desk, he waited for Mr. Gentalen to start sitting and pushed it under him. Then he went to his creaky leather rolling chair and sat.

"If you want to move forward with Kamberlan Genomics, we're going to need a couple more signatures." Mr. Gentalen pulled a tablet out of his briefcase and laid it on the desk.

"Before I sign, are you absolutely sure no harm will come to the students and that this genetic modification won't be found out as doping?" The Coach's brow was furrowed. He needed this to work and needed it to go off without a hitch.

"We just finished another round of testing. We're so confident it's safe that we can launch two weeks early." Mr. Gentalen puffed out his chest a bit. "As I said before, genetic modification isn't a type of doping authorities even look for yet. We're ahead of the curve, forging a new path to athletic excellence."

"Two weeks earlier? Are you sure?" The Coach's heart was pounding.

"The longer the seniors you've picked have to adjust to their increased athletic prowess, the better the outcome. We've taken your wish to secure a legacy, to have your town and your name to be remembered, very seriously. We want this opportunity to benefit both parties, and the students, as much as possible."

The Coach laughed. "Look at me, all worked up when I should be trusting your scientists." He was about to make history. To ensure he'd make a mark on the world of high school athletics. "What do you need me to sign?"

"Eight of the seniors you identified as candidates have signed up for our treatment and--"

"Did any of their parents learn about our plans while you were doing that?" The Coach's back was sweating.

"No, of course not. All the seniors on your list were eighteen years of age. They didn't need guardian approval for our treatment. Three seniors refused to sign on as test subjects, but we were able to get them to sign an NDA. As a result, you have no cause for worry, Mr. Roberts." Opening the magnetic screen protector on the tablet, Mr. Gentalen navigated to a form full of legal and medical jargon in tiny, unreadable text and tapped on a blank field. "First, we need you to identify the species of animal you'd like spliced with your students."

"Oh, you, uh, want me to pick?" That sweat on Coach Roberts's back was soaking into his shirt.

"Many species have traits that would increase their athletic ability, so we've left the final choice up to you. I'll let you know if you choose something that wouldn't work."

"Well, the team's named 'The Mustangs' so how about we just go with that?"

"Splicing your students with horse DNA is an excellent choice." Mr. Gentalen typed on the screen and then tapped on another field. "You wish this to be the species we splice both the males and females with?"

"All our sports teams have the same mascot, so yeah." The Coach fidgeted with the calendar on top of his desk.

After filling in The Coach's answer, Mr. Gentalen turned the tablet toward The Coach and set it down in front of him. He pulled out a gold-plated stylus that was sitting elegantly in his lapel pocket and set it next to the tablet. "Four men and four women have completed the paperwork and will be genetically modified. If you sign here, you will confirm that you believe all eight of these students are fit to undergo the procedure both mentally and physically."

"Oh, that's easy. They're healthy young adults with tons of energy." The Coach signed for that and then zoned out as he signed for lots of other little things that he had to take Mr. Gentalen's word for.

Ten minutes later, Mr. Gentalen was out the door and Coach Roberts was falling back in his chair, exhausted, but triumphant. The recognition he deserved was right around the corner.

* * * * *

The giant panel that divided the lunchroom in half for events had a splatter of ketchup on it, but the lunchroom itself was clean. It was also utilitarian. The polished, terracotta-colored concrete floor had more character with its rolling variations in color than the stainless steel fixtures, and the stark white-painted cinder block walls. The old fluorescent bulbs above needed to be updated to LEDs. There were at least three tubes that were flickering and/or casting ugly green-hued light.

Today, things were kinda odd in the lunchroom. The coach of the men's football and women's basketball teams had set it up for a lock-in. All but one of the long lunch tables that folded in the middle had been wheeled over to the wall opposite the partition. The lone lunch table in the center of the room remained unfolded and functional. Along the wall that the double doors were in was a big red-and-white cooler and a little table full of snacks, flanked by two cots on either side. Above the cooler and the table was a big projection screen that covered the already-white wall.

Across from the double door, in front of the window that looked out at the mountains and the faculty parking lot, was a chest-high gray machine with a chair in front of it. The machine had a main rectangular part with an arm that reached out right next to the chair. On the arm was what looked like a blood pressure cuff attached to two black tubes and two clear tubes. The top of the machine was shaped like a gold brick, but was the same matte gray as the rest of it. The slanted surface facing the chair was broken up into two sections. On the left was a bunch of switches and dials, the right section had a nice screen with a bunch of fields on it. All the text on the entire machine was in Korean.

When Mariana had signed the paperwork, she'd thought it was no big deal. Between seeing that strange machine and having to stay the night, to be monitored before she could go home, she was a lot less sure. It was just like her to worry like this, though. Carla didn't seem bothered by it at all. Wait, where was Carla?

Mariana poked her head out into the hallway to see Carla holding the sheet of paper that said, "MEN." She watched in horror as Carla put the "MEN" sign right beside the door to their partition of the lunchroom and had moved the "WOMEN" sign to where the "MEN" sign had been.

"What the hell, Carla?!" Mariana pointed at the signs. "Switch them back."

"It's not like anyone will know. Both sides have a weird machine and the only difference is that one side has the kitchen. Don't you want to be on the side where we can raid the fridge?" 
"But..." Mariana fidgeted with her hands nervously, not able to come up with a good counter to what Carla was saying.

"But what? The football team gets eight times the funding our team does. Sure, we're in basketball and need less equipment, but even the Men's basketball team has twice the funding we do!  I think we deserve some free chocolate milk and other goodies more than the football players do. Don't you?" Carla narrowed her eyes at Mariana. 

"The chocolate milk in those little cartons is very good." Mariana rubbed her chin and tilted her head.

"I think drinking it out of those cartons makes it taste better somehow." Carla grinned.

"Are you sure this is necessary? They did provide us  with snacks and there's plenty of drinks in the cooler. It's not like we're missing out that much."

"There's no apple juice or chocolate milk. And guess what else is in the fridge." Prancing toward the freshly swapped "Women's" partition of the lunchroom, Carla turned right and went through the big, swinging double doors.

Mariana was hot on her heels and when Carla got up to the tall stainless steel freezer on the far right, she waited as Carla opened the door.

"Put your hands out, palms up." Carla closed the freezer door, holding something behind her back. 

"O-okay." Mariana tried to imagine what Carla was about to do, but knew it was no use guessing.

Carla kneeled in front of Mariana and put a vanilla-chocolate-swirl pudding pop on Mariana's upturned palms. "A pudding pop, my queen?"

"Why thank you, loyal subject." Mariana laughed. "Now put it back." She handed the pudding pop back to Carla, who was still on her knees.

"Aww." Carla looked devastated.

"I'm just saving it for later. My dad made lasagna and garlic bread for dinner."

"My parents didn't even remember I had to be at this lock-in and all I've had since breakfast is a peanut butter sandwich I made out of two Eggo Waffles." Carla opened the wrapper and licked the pudding pop. "So, you're okay leaving the signs switched?" There was an adorable, hopeful twinkle in her eyes.

"Yeah, it's fine." Mariana's eyes were fixed on Carla's tongue as she licked the pudding pop. "I'm gonna move our stuff over here before anyone notices our subterfuge."

"You don't have to move my stuff."

"Ehh, you're...busy. I don't mind." Mariana rushed off to what had been the Women's partition.

* * * * *

Two guys entered the school at a full run. Only the lights in the trophy display cases were on, casting their athletic silhouettes on the walls and polished concrete floor. They took a left, whizzing by the school office. 

Zayne, the dark-haired one, whacked the wall with his sleeping bag, knocking a flier about an upcoming bake sale off of the office door. Shane, the taller one on the right, slipped on the flier and stumbled before regaining his balance.

As Zayne made a right turn to head down the hallway toward the lunchroom, Shane's blond curls passed directly under a spotlight, looking like spun white gold. The curls were too perfect, gelled and styled to the point that they looked like they belonged on a Roman statue.

As they got to the partition of the lunchroom labeled "MEN," Shane threw his sleeping bag at Zayne's legs and then dashed in as Zayne tumbled to the floor.

"Cheater!" Zayne cried as he got up and chased Shane into the room, his medium brown skin taking on a sickly green tint under the fluorescent lights. His buzz-cut and bright hazel eyes intensified his disdainful glare at Shane.

"Can't cheat if there's no rules." The fact that Shane had to look away from Zayne's glare weakened his argument, but it had no effect on his near-constant sneer of superiority.

"Oh come on, common sense dictates you can't just throw random shit at your competition's legs." 

"What are you? A master-dictator?" Shane laughed as he grabbed his sleeping bag, which was lodged in the double doors.

"That's not even a joke." Zayne frowned.

"Well, it's still funny." Shane surveyed the cots and then plopped his sleeping bag and backpack on the one nearest the folded-up lunch tables.

"To only you." Zayne set his sleeping bag on the cot next to Shane's and then set his backpack on the floor next to the table full of snacks.

"I'm the only one that counts." Shane puffed up his chest with pride.

"Oh yeah? Try saying that next time I skip one of your parties."

"Hey! You can't skip my parties, we're best buds." Shane hooked his arm over Zayne's shoulders and gave him a manly hug.

Ducking out of Shane's hug, Zayne tweaked Shane's nipple.

"OW! FUCK!"

"Now we're even." Zayne ran through the double doors.

"Come back here!" Shane gave chase.

"Hey!" Just on the other side of the doors, Andy dodged Zayne, dropping his big, light-blue duffel bag in the process. 

Ignoring the two idiots running down the hallway, he leaned over to pick up his bag. He swore under his breath as his greenish-brown Australian outback bush hat fell off and his long, red bangs fell out in front of his eyes. Gathering his hair and trapping it back under his hat, he grabbed his bag.

When he got in the room, the odd gray machine in front of the window caught his attention for a moment, but then he set his stuff down on the cot just inside the door. It was the cot furthest away from Shane's cot. Sitting next to his backpack, he got out his wireless, noise-canceling headphones and put them on. The best colors of sunset were about fifteen minutes away and not one car or truck was parked in the Faculty lot, so he had an unobstructed view of the mountains. As he bobbed his head and tapped his foot to the beat of the Beyonce song he'd been listening to on the drive here, he sang under his breath.

Back at the front entrance, Luis was walking in with Jessica right behind him. He was wearing a hyper modern leather jacket with lines so sharp, it looked like something an anime character would wear. His gray dress pants had razor-thin pinstripes that matched the yellow pinstripes on his navy-blue button-down shirt. The perfect, black wave of two-inch-long hair atop his head would've looked good on a movie star if it hadn't been glistening from a too-generous amount of pomade.

Jessica was wearing pink, bright pink. It seemed her criteria had to do with how obvious the brand names were: eye-searingly obvious, or she didn't wear it. Luckily, she had good fashion sense to go along with her expensive tastes. Her straight black hair and light amber skin went great with bright pink.

"Luis, honey, could you get the door for me?" Jessica moved her light-pink-on-darker-pink Desley Paris rolling suitcase in front of her.

"Always, mi angelita." Luis set down his sleeping bag and pulled the door open.

"Thanks bunches!" She trotted in, carefully pulling her suitcase over the threshold.

As Luis walked by, he traced a finger along her forearm. She smiled down at him, her extra five inches of height obvious now that he was this close to her.  

Shane and Zayne ran by the entrance, shouting at each other.

"Hey! Cut it out!" Luis yelled.

"Fuck off!" Shane called back.

Luis rolled his dark brown eyes at Shane's childish behavior while Jessica yelled, "RUDE!"

When the pair got to the lunch room, they shared a brief kiss before heading to their respective partitions.

He stopped just before entering the men's partition and waved at her. "Love you!"

"Love you too! See you later, hon." Jessica walked into the women's partition.

Carla and Mariana were laughing at a video on Carla's phone. Jessica ignored them as she rolled her suitcase up to the cot opposite Carla's. It was further away from the door than the other option and those two were harmless. She got out her toiletries bag and left for the restroom so she could take off her makeup.

Returning to the women's partition, she sat on her cot for a moment.

"Hey, Jessica!" Mariana waved.

"Hello. How's it going?" Jessica put on a warm smile even though she wasn't feeling it.

"Okay, I guess? We're trying to decide on a movie to watch." Mariana held up her phone, which was too far away for Jessica to read. "The school server's got like a hundred random titles."

"Forget that for now." Carla gently pushed Mariana's hand down. "Jessica, you're Korean, right? Can you read the writing on the machine over there?"

"I'm Chinese, not Korean, and my family's been here for two generations. I can barely read a children's book in Chinese." Jessica took a deep breath to calm herself. Then she looked at the machine and did a double take. "That's what they're using on us? A piece of junk?"

"Yeah, I guess." Carla shrugged. "Scientific equipment isn't made to look pretty, most of the time."

"Medical equipment is, though." Rosie said as she set her stuff down on the last available cot. Her dark blue jeans showed off her hips while her long, Imagine Dragons T shirt fought to hide them. Her shiny black nose ring and green-dyed-tips on her hair contributed to her punk vibe.

"Maybe it's ugly because it's a prototype." Carla walked over to the machine.

"Yeah, could be." Rosie followed her over while Jessica and Mariana watched from across the room.

"This looks legit. It's probably just a really new technology." Reaching out a hand, Carla poked the gray plastic arm rest.

"It's gotta be new because otherwise we'd all be caught for doping." Rosie inspected the tubes coming out from the cuff.

"We're going to get caught?" Mariana's voice was high-pitched with anxiety.

"Totally not what I said."

"The paperwork said it was a procedure to guarantee we're in peak health. They're probably just monitoring our blood work throughout the night so they can suggest better diets and stuff." Jessica shrugged.

"It sounded to me like they were doing something to us, not just monitoring us." Carla spoke slowly as she continued to inspect the machine.

"Who cares what they're doing?" Jessica waved her hand dismissively. "If it helps the team, it helps us. It's not like they'd do something dangerous to us or something that would get them in legal trouble. Coach Roberts isn't a crazy person. He's just passionate."

"Yeah, you're probably right." Mariana sighed and rolled her shoulders to reduce the tightness in her neck.

"Seeing this machine makes me a bit worried, but tons of medical stuff is made in Asia and then we just put English words on it." Carla walked back toward her cot.

"I hope it does something cool, like gives us nice muscles, or higher jumps, or both." Rosie was still looking at the machine, falling just short of flipping switches.

"Oooh, I hope that's the case. The fitness junkie look is in nowadays. Plus, I've heard a nice set of pecs can lift your breasts and who doesn't want a rounder ass?"  Jessica opened her suitcase and pulled out her sleeping bag.

* * * * *

Luis didn't even get to put his stuff down before Zayne bear hugged him. "LUUUIIISSSS!"

"Hi Zayne." Luis stood there, waiting for Zayne to calm down.

"Did you figure out binomial expansions yet? Mrs. Pfeifer was talking really fast at the end of class and I missed something. " Zayne let go of Luis.

"Pascal's Triangle is all I got out of her speed talking, but I think what I'm doing works. Though, I'm going to send her an email before bed because some of the homework problems are purposefully confusing."

"When you two figure it out, let me know." Shane was munching on a granola bar.

"You're going to help this time or we're not giving you the answers." Luis stared Shane down.

"Oh yeah? Well maybe I'll just get the answers from Andy then." Taking three wide steps, Shane was standing in front of Andy.

Andy looked up to see Shane standing over him and froze.

Shane pointed at Andy's headphones and motioned for him to take them off.

"Yes?" Andy took off his headphones.

"Can you help me with the precalc homework? These two ungrateful assholes are trying to push me out of their study group."

"I-I'm not in precalc, I'm retaking Algebra 2." Andy cringed.

Shane laughed. "Everyone assumes the quiet ones are the smartest, but they don't know about you, do they?"

"Stop it." Zayne grabbed Shane's arm. "Without our help, you'd be retaking Algebra 2 right along with him."

"Yeah right, only reason I don't do my homework is it's boring. It's not like I actually need the help." Shane pointed at Andy. "And, if he needs help, why isn't he coming to our study group? It's not like we made it a secret."

"Luis invited me, but my parents and his parents hate each other."

"Your parents are dumb!" Shane shook his head, showing a bit too much pity.

"That's one thing we agree on." Andy put his headphones back on and turned away from Shane.

Shane grabbed Zayne's shoulder and shoved him. "Next time you try to be alpha, I'll lie you flat on the floor, understood?"

"Oh?" Luis laughed. "Will you lie him down gently? Maybe spoon him?"

With a growl, Shane leapt toward Luis.

"Good evening, am I interrupting something?" A spindly man in his late twenties with a couple angry red spots on the right side of his face had walked through the door. He'd shaved maybe a couple days ago and his shirt was only half tucked in. His face drooped with tiredness and there were dark bags under his eyes. He looked like a grad student who was surviving on caffeine and pizza until he finished his doctorate.

This distraction helped Luis step out of the way of Shane, and Shane stumbled to a stop.

"Not anything important." Luis narrowed his eyes at Shane.

Shane scoffed.

"Glad to hear it. My name's Milton and I'll be administering your treatment." Milton motioned toward the strange machine. 

"Milton?" Zayne chuckled. "Is your last name Bradley?"

"Can't say I've heard that one before." Milton's smile didn't match his bone-chilling stare.

Zayne swallowed and took a step back.

Andy took off his headphones, suddenly aware there was another person in the room.

"If all of you could line up at the splicer, we'll get this done quick and you'll be able to go back to your unimportant, testosterone-derived activities." Milton grabbed a stainless-steel cart that was just outside the door and wheeled it in.

On top of the cart were latex gloves, hand sanitizer, alcohol swabs, cotton balls, first-aid tape, and a key. When Milton got up to the machine, he put the key into a keyhole in the bottom middle of the machine's control panel and turned it. The screen brightened and little amber LED lights under each of the switches lit up. Then he pumped hand sanitizer into his left hand and methodically sanitized his hands before shaking his hands until they dried.

The guys lined up, Shane pushing Zayne behind him. Luis stood behind Zayne and Andy took up the rear.

"Now that you've figured out your pecking order, I'm ready." Milton motioned for Shane to sit and then put on a pair of latex gloves.

"Hah, pecker order." Shane sat down and stuck his arm through the cuff.

Zayne laughed while Luis shook his head and Andy smirked.

Milton rolled his eyes theatrically before flipping a couple switches and hitting a green arrow on the touch screen several times in a row while barely looking at the screen.

"There will be a slight pinch and then a bit of a chill. Do not be alarmed." Milton's voice was robotic, as if he'd said this a million times.

The cuff filled with air, holding Shane's wrist firmly before a whooshing sound and a yelp from Shane. Then one of the clear tubes turned red as Shane's blood traveled down it. Just as Shane's blood entered the machine, there was a loud whirring and lots of puffs and clicks as pneumatic actuators fired inside. 

A pop-up on the screen with a yellow triangle and an exclamation point was accompanied by three harsh beeps.

"We really have to update your software so you're not such a primadonna." Milton tapped the green button on the bottom right of the pop-up.

"Is something wrong?" Shane looked like he was considering yanking his arm out of the cuff.

"No, no." Milton rubbed his eyes. "We've been getting errors right after the blood draw on these units. One of the thermocouples was wired wrong, I think."

Another warning popup appeared. The Korean characters on it were different from the first one.

"Boy are you cranky today." Milton dismissed the pop-up.

"What was th--" Shane stopped mid-sentence as he saw the other clear tube fill with a faintly blue liquid. "Geeze, that's cold."

"As I said." Milton was looking out the window, watching the lights in the empty parking lot turn on.

Thirty seconds later, the cuff deflated and Milton got out a cotton ball. "Show me your wrist."

Shane held his wrist out for Milton. There was a little dot of blood that was slowly growing. Milton put the cotton ball on top of it and then wrapped a length of tape around Shane's wrist.

When Luis was in the chair, he waited for that second pop-up and asked, "What's that one complaining about?"

"High testosterone levels." He closed the warning pop-up and then clicked through the menu to get to a spreadsheet. "Your levels are all fine for teenage athletes."

Luis let out a breath he'd been holding. "Glad it's nothing concerning."

"I've been glancing at all the numbers and everything is going fine, none of you have anything to worry about." Milton patted Luis on the shoulder, giving Luis his first genuine smile of the evening.

* * * * *

The women's partition of the lunchroom was dead quiet as Jessica's blood was drawn into the machine. Just after some raucous laughter from the men's partition, the first error came up.

"What was that?" Jessica's eyes widened when Milton just dismissed it.

"The backup thermocouple was wired wrong. It's a known issue that won't affect the procedure." Milton sighed as the second error came up. "And this one says you've got too much estrogen, but it looks completely normal to me, so I'm dismissing it."

"Still working out all the bugs?" Jessica smiled nervously.

"Yep! That's why I'm keeping an eye on everything."

The light-blue-tinted liquid went into Jessica's arm and she shivered for a moment.

Once all the girls had had their procedures, Milton got everything situated on his cart.

"Aren't you going to stay and monitor us?" Mariana walked up beside him.

"It'll be hours before there's any side effects." Milton yawned. "I'm going to take a nap until then."

"Side effects?" Mariana's eyes went wide.

"Didn't you read the paperwork? Over the next twenty-four hours, there might be muscle cramps, cramps in our guts, a pins and needles sensation, and/or bouts of wooziness." Rosie counted out the side effects on her fingers as she listed them.

"Precisely! And if anything goes wrong while I'm napping, here's my number." Milton pulled a card out of his shirt pocket and handed it to Mariana.

Mariana glanced at his card. "Wait, your middle name starts with a B? Does that mean--"

Carla and Rosie giggled. Jessica looked back and forth between Milton and Mariana, her brow furrowed in confusion.

"Of course not, that would be silly."

"Sorry." Mariana said.

"No apology needed." Milton wheeled the cart out of the room, one of the wheels squeaking rhythmically as he made his way down the hall.

Before Milton had even made it to the door, Carla was opening the freezer. With a box of pudding pops in her hands, she grinned at the other girls. "There will be no witnesses to our pudding caper!"

"Hey, Jessica." Luis trotted into the room.

"Oh no! A witness!" Carla put a hand to her forehead melodramatically as she acted like she was going to faint.

With a tilt of his head and a furrowing of his brow, Luis tried to process what Carla was doing. Mariana laughed while Rosie smirked.

"Did you miss me, honey?" Jessica's voice was almost a coo.

Rosie retched quietly. Seeing this, Carla bit her bottom lip as she held back a laugh.

"A little, my dove." Luis kissed the nape of her neck.

Carla handed a pudding pop to Mariana, but when she tried to hand them to Luis and Jessica, they weren't even paying attention.

"May I come in?" Zayne waved from the doorway.

"Do you want a pudding pop?" Carla asked.

"Sure!" Zayne walked up to her and grabbed one. As he unwrapped it, some flecks of ice fell to the floor. "We can't get our projector to work, so I was sent over here to ask if we could have a co-ed movie night."

"Is Shane being extra annoying tonight or just normal annoying?" Carla set the industrial-sized box of pudding pops on top of the strange machine and took a pop out for herself.

"Normal annoying, I'd say." Zayne spoke quietly. "Plus, he's often better behaved around Jessica."

"Huh, that's true."

"Weird, right?" Zayne licked at the pudding pop. "I think he might be into Jessica."

"I think it's why he doesn't get along with Luis." Mariana had made it through half of her pudding pop.

"Ehh, I think Luis is less willing to take his crap." Rosie had been licking her pudding pop and it was now almond-shaped.

"What's taking so long?" Shane stomped into the room.

"It's been about two minutes, asshole." Carla gave Shane a withering look.

"Oh yeah? Assholette?" As Shane got uncomfortably close to Carla, his eyes drifted to the open box of pudding pops.

"If you stop insulting me, you can have one."

"Is it an insult if it's the tru--"

"They already said we can watch movies in here. Don't fuck this up." Zayne leaned toward Shane, challenging him as he said this.

Carla unwrapped a pudding pop, getting ready to offer it to Shane.

"Ladies can't resist me, there's no way they wouldn't agr--MMPH!" 

Jessica dashed to Carla, grabbed the pudding pop from Carla's hand and shoved it in Shane's mouth while he was speaking. The amount of grace in her movements was a stark contrast to her words. "Shut up and enjoy your popsicle or I'll get a giant ladle from the kitchen and beat you to death with it."

Everyone's eyes were wide. Jessica looked like she meant every word. Carla, Luis, and Shane were blushing. 

"Wow, Jessica, just wow." Mariana was still in shock.

"We put up with his shit for the last three years. I'm not putting up with it all through my senior year too." Crossing her arms, Jessica set her jaw.

"That's my girlfriend!" Luis cheered.

"Shut up, Luis. I've been waiting for you to confont him for three fucking years." Jessica walked out of the girls partition.

Everyone blinked, looked at each other, and then Mariana laughed awkwardly. "Well, that was kinda intense."

Luis and Shane laughed as if Mariana had made a good joke and the rest reluctantly joined them. After the laughter left, everyone's eyes were still darting nervously as they worked to finish their pudding pops. Carla handed one to Luis.

When Jessica came back, she had Andy in tow. "Now that we're all here, let's pick a movie."

It was awkward at first, but eventually, they were all looking through the movie library on the school's server. Though it was supposed to be a democratic process, everyone just agreed with Jessica when she suggested they watch "Batman Returns."

"This was my mom's favorite movie." Jessica smiled as the beginning credits rolled.

"Her mom had a huge crush on Michael Keaton." Luis chuckled.

"If he wasn't seventy now, I'd probably have a crush on him too." Rosie said.

"Same here." Jessica looked around the room for a moment. "Zayne, Shane, and Luis, get some gym mats so we don't have to sit at a lunch table."

"You can't just order me around like I'm some--" Shane was pointing at Jessica accusingly.

"Just leave it, man." Zayne pulled Shane toward the door.

"Why won't you back me up?" Shane furrowed his brow.

"I am backing you up, you just don't get it."

Shane was so confused that Zayne managed to drag him all the way out to the hallway. Luis followed a few steps behind. Ten minutes and two trips later, gym mats covered a nice big area in the center of the room and the lunch table was folded up with the rest of the ones against the wall.

Everyone settled in, many of them getting their pillows so they could lounge while watching the movie. Then Rosie hit play and the movie started. There was harmony, there were funny comments and laughter, everything was going great. That was until a half hour into the movie when Shane groaned and doubled over. 

"Pause it." Zayne waved at Rosie and then turned to Shane. "You okay, man?"

"I don't feel so good. Cramps." The grimace on Shane's face worsened.

"Oof, I'm cramping some too." Zayne rolled his shoulders. "Didn't expect the side effects to be this bad."

"You can keep playing, I'll just tough it out." The pain in Shane's voice made it hard to take his statement at face value.

A half hour later while Selina Kyle was having an ominous discussion with the Mayor of Gotham, Shane leaned toward Zayne and whispered just above the volume of the movie. "Hey Zayne, feel my pecs."

"No, that's weird." Zayne furrowed his brow. What Zayne wasn't paying attention to was that his own pecs were starting to stretch his shirt. It was easy to ignore that sensation when they were other, more powerful tingles centered on his groin.

"Whatever they gave me is beefing me up, bigtime." Shane pushed his chest out to show off. His shirt was stretching a lot and his nipples were very prominent.

Zayne did a double take and then felt Shane's pecs.

Biting his lip, Shane groaned softly.

"Dude, I'm not sure those are pecs." A blush reddened Zayne's cheeks as his prick came to life. Shane's "pecs" felt supple, pleasing to grope.

"Oh, yeah? Wait until I flex." Shane grunted, flexing and pushing his chest out a bit more, but while there was noticeable movement, his chest remained soft.

"Huh, something's not right here." Zayne felt Shane's plump nipples and squeezed them gently.

Shane moaned so loud, everyone turned toward him. It wasn't a manly moan at all and Shane looked horrified after it echoed throughout the room.

On the big screen was one of the most inexplicable scenes in the movie where Selina Kyle was brought back to life after falling several stories by a bunch of cats licking her. Other than the meowing of the cats on screen, the room was dead silent. 

Ignoring the onlookers, Shane looked down at his tits and cupped them with his hands. Just then, Zayne looked down to see why his shirt felt tight and gasped in surprise.

Zayne and Shane turned toward each other and blushed. Their eyes darted from their own tits to the other's tits.

"We have boobs?" Shane gulped.

"Yup, those are boobs, alright." Carla didn't look like she fully believed what she was seeing and there was a fair amount of awe on her face.

"I guess that means we're not hallucinating?" Zayne bit his lip, his eyes wide with shock while his cheeks got redder. It felt oddly nice to hold his tits, a comforting feeling that was fighting his nervous tension.

"What the heck is happening to us?" Luis poked one of his breasts. They weren't nearly as far along, but there was no mistaking what they were.

"NGH!" Jessica spread her legs as something made a tent in her pink jeans. It was pulsing visibly and getting larger with each passing second. The sleeves on her pink T-shirt looked way too tight as did the legs of her jeans. "Oh shit, oh shit, oh shit!" She was breathing hard and gritting her teeth, obviously in discomfort.

"Is your clit usually that big?" Shane was still feeling up his boobs, but his full attention was on Jessica's groin.

"Eww, eww, ewwwww!" Jessica cried as the seams on her shirt and jeans started popping.

"Mi angelita!" Luis rolled onto his side, forgetting the strange sensations all over his body. "Tell me what to do to help."

"Get me out of these clothes before I ruin them!" Her normally confident voice was full of desperation.

"Someone call Milton!" Mariana doubled over, dropping Milton's card on the floor.

Rosie grunted as she fought her cramps and grabbed the card. She then pulled out her phone and dialed Milton's number.

Milton didn't pick up until the last ring. "This is Milton, with whom am I speaking?"

"This is Rosie. Something's gone terribly wrong." Rosie dropped her phone on the mat as she got a tent in her jeans. "WHAT THE HELL!?"

"Hello? Hello?" Milton's voice was high-pitched with concern.

Grabbing the phone with one hand, Rosie reached toward the tent in her Jeans with the other. "Just get your ass over here!"

"Haah!" Mariana scrambled to get out of her pants, the pressure in them too much to bear.

When Luis got Jessica's pants off, she shrieked. A thick, four-inch pole of flesh was stretching her panties. Luis just stared, slack-jawed and trying to find words. Jessica's cheeks were pale with shock and her eyes were wide. As her phallus gained another inch, her panties started to complain.

Mariana's three-inch stiffy was so tight in her form-fitting panties that she worked to free it. When it popped out of its prison, she muttered, "No, no, no!"

"I don't know what you girls are freaking out about, having a dick's gotta be fucking awesome!" Carla stood up and started undressing. When she got her panties and pants off, she grabbed her two-inch clit and gasped as it grew even larger. "Mmm! Sometimes, dreams do come true."

"Truth." Rosie unbuttoned her jeans and pulled them down, a smile curling at the edge of her lips while her mouth hung part-way open. Seeing her clit expand in real time was making her whole body heat up.

"Are you two crazy? We have no idea what's happening to us." Mariana glanced at Carla.

"Yeah, I'm still cramping, bad." Luis curled into the fetal position.

"Oh shit!" Carla ran over to Luis. "Are you okay?"

"No!" Luis groaned.

A ripping sound cut through the room as Shane's shirt gave out. The rip started right between his tits and then went outwards until his shirt split enough that his knockers could hang free. Zayne pulled his shirt off and then nervously looked at his pants. It was really tight in there and it was only getting tighter, so he undid his belt and worked them off. The tent in his boxers was way bigger than normal. His eyes darted around the room, lingering on Jessica's five-going-on-six inches of dick.

When Zayne pulled his boxers off, Andy's eyes locked onto Zayne's misshapen seven-inch dick. The head was flatter than it should've been and the shaft was too dark. There was also this faint ring about two-thirds of the way down. Andy blushed deeply while watching Zayne's shaft become more and more equine. He was forced to avert his gaze when his own pants got tight.

Mariana's tits ached so much in her bra that she got completely naked. Then she was staring at her clit as it got longer and longer. Reaching out a hand, she touched it.

"Oh wow! NGH!" It felt so good, instinct took over and she was thrusting into her hand.

Rosie blushed all over her body as she watched Mariana give into her lust. Her own dick needed attention, but she couldn't take her eyes off of Mariana's pussy as Mariana shoved a finger inside herself. Rosie moaned, stroking her growing clit as her own pussy clenched.

"What the fuck? What the fuck? WHAT THE FUCK!?" Shane's dick was throbbing like everyone else's, but instead of getting bigger, it was getting smaller. On top of that, as his initial shock wore off, he was struggling to stifle his moans.

His cry of disbelief didn't get much attention from the other quickly-transforming student athletes as they all had their own things to worry about. Zayne, however, gave Shane his full attention.

"Hang in there, bro. Help is on the way." Zayne grabbed Shane's hand. It was clear, from Zayne's wide-eyed expression of shock, that he was very concerned by what he was seeing, but he didn't let that get into his voice.

Zayne's dick was almost eight inches long and looking outright bestial. It was black with a big splotch of pink in the middle of the shaft. The head was flat with a ridge of flesh to make a flare and the faint ring had become a full-blown medial ring. The combination of tits and a big horsedick was confusing to Zayne, but hotter than hot to Andy who sidled up to Zayne.

"You're so beautiful. May I?" Reaching out cautiously, Andy moved his hand toward Zayne's dick just as reddish-brown fur sprouted on Zayne's belly.

Zayne's dick lurched, dripping precum on the gym mat below. "S-sure, um, it's not gay for a bro to help a bro out, is it?"

"Who cares?" Andy wrapped his hand around Zayne's dick and stroked slowly.

 "Haaah!" Zayne's spurt of precum hit Shane's side.

"Gross, man. Gross!" Shane said as his hands hovered near his crotch. He clearly wanted to use them to stop whatever was happening.

Andy rolled his eyes and kept stroking Zayne's shaft. A tugging sensation got him to spread his legs as he did so. White fur with large patches of light reddish-brown was quickly spreading over his thighs.

Mariana spread her legs wider and wider as a new clit split off from her shaft and her labia thickened dramatically. Her snatch was impossibly wet. "Feels so good!" She fingered herself harder, moaning while her eyes kept darting to Rosie's enlarging shaft.

Rosie's dick ached as she sniffed the air, her nose flattening into her face. Strong instincts got her to crawl between Mariana's legs and point her dick at Mariana's snatch.

Seeing the head of Rosie's dick flatten as her whole shaft took on an equine appearance, Mariana moved her hands to her pussy and spread it wide. "Rosie, please." Her blush was getting harder to see because dark chocolate-brown fur was coming in on her cheeks.

Mariana's needy scent overpowered any better judgment Rosie had. With a grunt, she shoved her dick into Mariana. Being inside Mariana only increased Rosie's lust and she worked her shaft in and out, trying to get the whole thing in there. Only issue was that her cock grew in girth and length with every beat of her heart. Light brown fur spread across her neck and chest as she kept going. Discomfort in her abdomen was followed by an urge to push, so she did. Three times, straining as she felt something move inside her each time. On that last push, her balls fell into a sac that she hadn't noticed forming.

Their jaws popped and their teeth pinched in their gums as they got muzzles. Mariana was too busy stroking her growing cock to care and Rosie was deeply distracted by just how hung she was getting. Her balls were now big enough to make nice, satisfying smacks against Mariana's ass while her dick was swelling past eight inches long with no sign of stopping. On top of all that, her breasts were changing shape, getting wider and projecting less while her musculature was becoming more defined on her arms, legs, and abdomen.

Mariana's bosom expanded along with her hips, giving her increased feminine curves to go with the meaty pole between her legs. She couldn't stop stroking it because it made everything Rosie was doing feel that much better. The clit at the front of her equine pussy got as big around as a marble as her cunt came around Rosie's shaft.

Milton walked through the door while Mariana whinnied at the top of her lungs, spurting ropes of clear precum from her dick. The color in his cheeks drained as his eyes darted to Shane's disappearing cock, Andy as he took a nice long lick of Zayne's horse shaft, and the tits coming in on Shane and Zayne. Then his eyes widened as he saw just how big Jessica's prick was getting.

"NOOOPE!" Milton turned to leave.

"Hey! You can't leave, you have to fix this!" Jessica yelled.

"Yeah! Do something!" Shane craned his neck to get a better look at Milton.

"No, I'm not going down for this. I'm out!" Milton took off his lab coat, dropped his work cellphone on top of it, and fished out his Kamberlan Genomics security fob. 

"What are you doing? HELP US!" The frustration in Shane's voice was magnified by the fact his voice was higher-pitched than before.

Milton didn't even glance at the students as he dropped the fob on the rest of the pile and ran down the hallway as fast as he could.

"GET BACK HERE, YOU MOTHERFUCKER!" Jessica shrieked after him.

"Don't stop!" Mariana's prick couldn't fully go off yet, but her pussy wasn't having any issues and was on its way to exploding again.

Zayne could hear, and even smell, Mariana and Rosie going at it, but he couldn't pay attention to them or Shane whimpering over the changes to his body. No, all he could focus on was his new tits as they got covered in reddish-brown fur and Andy's enthusiastic worship of his dick. The pleasure was so powerful that he felt clenching in his abdomen and tingling behind his balls. Simply on the basis that he'd never had someone this talented touch his cock before, Zayne made the assumption that the tingling was Andy's doing. Therefore, he didn't think twice about the building pressure between his legs as his flesh was pushed up into him.

Andy's eyes moved from Zayne's dick to his tits. One of Andy's eyebrows raised as he saw Zayne's reddish-brown fur sprout on them. Reaching up with a hand as he continued to enjoy Zayne's delicious pre-dripping horsecock, he felt Zayne's right boob.

"Huh, this feels like horse fur. Makes sense, I guess?" While feeling up Zayne's boob, Andy glanced down to see his own reddish-brown-spotted white fur. It looked really good on him because the spots matched the color of his hair.

Zayne tried to say something, but all that came out was a long moan as his nipple hardened under Andy's palm.

Andy was awe-struck at being able to make Zayne moan. Soon, he had both of his hands on Zayne's tits and was playing with them. Zayne's balls enlarged to the point that they touched just below Andy's neck and Zayne was pre-ing much more heavily now. The ample pre tasted better and better as Andy's jaws cracked and his face pushed out. 

Meanwhile, Andy's dick found its way down the leg of his gym shorts and dripped pre on the mat below. Moaning right along with Zayne, but at a lower pitch, Andy shivered as his cock formed a flare, a medial ring, and grew five inches. His balls got heavier as his shaft thickened, the seams in his boxers starting to tear. A hot ripple of sensation traveled across the area behind his balls, making him buck his hips and become even more obsessed with Zayne's prick.

The loud ripping of Andy's boxers caused both of them to pause. Andy's dick broke free of its confines, his boxers and gym shorts shredding. Reaching back, Andy tore his shorts and boxers off. A stubborn section wedgied between his forming pussy lips and he moaned as he felt his flesh part under his fingertips. A clit formed while he rubbed at his mound. He added two fingers, then three, then four and was oblivious to Zayne's questions about what was going on.

Then Zayne groaned as his own snatch plumped up under his balls, his clit soon growing so large it was digging into the back of them. He kicked his legs a bit, overwhelmed by the sensation of his vaginal canal opening up in his abdomen.

Being so close to Zayne's crotch, Andy could smell Zayne's blooming sex. Instead of playing with it that moment, Andy took his fingers out of himself and straddled Zayne's groin, facing away from Zayne's head.

Looking over his shoulder at Zayne, Andy said, "Sorry, Zayne, but I need this." Then he lowered himself onto Zayne's shaft, popping Zayne's flare into his pussy.

Both of them gasped deeply, Zayne as he felt labia part for his dick for the first time, Andy as he enjoyed being stretched open for the first time.

"NO! NOOO! NO!" Jessica's voice was shrill, but also lower and more gravelly than before. Her cock was over a foot long and her breasts were flattening, looking more and more like pecs. An awkward fleshy sac under her dick sat in front of a plump mare muff that was leaking wetness on the gym mat below.

Luis popped up onto all fours at the horrified cries of his mate. The movement tore the buttons out of his strained shirt and two C-cup breasts flopped out while his hips ripped his dress pants and boxers right down the middle. Eight inches of a not-so-human dick and red-and-white-mixed fur was now bared to everyone as he felt a sucking just behind his balls. With one last cramp, that whole area plumped up and then the flesh parted.

"Ha-AAAAH!" Luis cried out as a brand new clit ballooned into being and his cunt had its first orgasm.

Carla's dick spurted pre on Luis's leg as she watched a waterfall of girl juices spill out of Luis's winking depths. Jessica's nose got shorter as her face grew outwards. Orange-brown fur dusted her cheeks while black fur was dusting her neck. For the time being, the changes in her face were making it hard for her to continue complaining about other changes.

Luis's eyes went wide and his jaw dropped the moment his orgasm ended. Blood rushed to his cheeks as he saw just how masculine Jessica's build was getting. Her arms were more built than his, her pecs were massive, her thighs just kept getting thicker, and her abs were going to be better looking than his very soon.

That new place between his legs ached as he looked at Jessica's dick. It ached so much he had to bite his lip to stop from moaning. A whinny of passion came from him as Carla's tongue entered his virgin passage. This situation had no precedent, nothing to compare it to. All these new sensations felt so good and the urges he was getting were impossible to fight. 

While Carla used her transforming tongue to plunge into his depths, he couldn't take his eyes off of Jessica's gorgeous dick. It started off black at the base, but at the medial ring, the shaft took on a deep pink that led to  the biggest flared head in the entire room. Luis reached out and felt Jessica's biceps, immediately getting a rush of feminine need. He had to feel more of her, had to feel how she'd changed. His hands roamed over her pecs, her thick, powerful neck.

"Luis, what are you doing?" Jessica's face was no longer human, but her frustration and annoyance was clear.

"Feeling all your gorgeous muscles." Luis sounded like he was in a trance.

"What the hell are you talking about? I'm ugly!" Jessica groaned. "I shouldn't have signed that paperwork. I knew it sounded sketchy."

Luis grabbed her dick and whinnied as he felt it throb and gain another inch of length.

"No! Don't get lon--NGH!" Her voice broke as Luis licked along her shaft, nuzzling it.

Luis's face burned as more red-and-white roan fur sprouted on it. His nose was fully equine now and his lips were changing to fit with his species hybridization. The moment he took a sniff of the air with his equine nose, he gushed wetness that soaked the patches of fur on Carla's forming muzzle.

Something flowery and feminine caught his nose and he reached behind Jessica's sac to find her pussy. It was full-figured, truly incredible, and as he slipped fingers into the love of his life, he sucked on the head of her cock.

Jessica grabbed her head and moaned while her hair ran down the back of her neck, looking more like a mane. As Luis continued to worship her twin sexes, she moaned deeper and louder. Luis found her pre tasted sweet while being satisfyingly salty. The more pleasure she felt from her cock, the more pressure built in her abdomen.

"You taste so good, you feel so good...you're still the most beautiful thing I've ever seen." Luis gently pulled away from Carla and climbed atop Jessica, meeting her muzzle with his and using his muscular equine lips to kiss for the first time.

She kissed back, grabbing his head, tears coming from her eyes. His tailbone clicked as new vertebrae formed, which hurt some, but this was countered by her throbbing shaft hotdogging between his pussy lips while they kissed.

"You really think so?" Jessica asked, tears streaking down the fur on the side of her face.

"Yes. I even think it fits you. Think about all that time in the gym. All the times you told me how jealous you were of how easy it was for me to build muscle. Now you're like an adonis." 

Carla could see how conflicted Jessica was, but she was fucking horny and agreed with Luis. So, she got between Jessica's legs, lay on her front, and lapped at Jessica's cunt. As she did this, she rolled her hips to rub her cock against the gym mat. She groaned as she lapped at Jessica's muff, feeling her dick grow bigger and bigger, reaching farther into space between her belly and the gym mat.

"Haah! Y-you're into this?" Jessica gestured toward her body, then moaned as Carla started licking.

Luis took Jessica's muzzle into his hands, and looked into her eyes.  "Mi, Angelita, I'd be into you no matter what you looked like." He pressed back against Jessica's cock and gasped. His tail was getting long black hairs as it got closer and closer to full length.

"You really want to be fucked by your girlfriend's..." There was a twinkle in Jessica's eyes and then a confident grin that made Luis whimper. "Boyfriend's cock, don't you?"

"So, so badly!" Luis shivered against her, his dick throbbing along with his clit.

Jessica thrust her hips to rub her cock on Luis's snatch as well as grind her cooch against Carla's face. A tightness in her abdomen gave her the bizarre urge to push, so she did. That tightness slid down the front of her vaginal wall, hitting some very pleasurable spots along the way. Whinnying and grinding, she came from hier pussy as a rope of pre shot straight up and landed in Carla's hair.

Carla's hair was turning into a mixture of white and black strands to match the black-spotted white fur growing in on her back and shoulders. A similar tightness to Jessica's was now in Carla's abdomen, but the urge to push had not yet manifested.

The moment Jessica's orgasm passed, Jessica pushed Luis up with her powerful arms and grabbed Luis's breasts. Black fur coated her arms and ears as her ears stretched into an equine shape.

"Fuck, I feel so strange, but also really good!" Luis blushed as his nipples hardened.

"Look at those tits. Maybe you're the girlfriend now." Jessica's body throbbed from head to toe as all her muscles burned and her bones ached. At first she was worried, but then she noticed her perspective shifting as her body got two inches taller and more powerful. Her grin got even bigger, making the edges of her lips pull up on her muzzle. It was a very sexy grin laced with a confident smirk. 

"Yes, Jessica, I'm your girl!" Luis arched her back, nearly cumming as she said it.

"Call me Jessie for now. And yes, you're my girl, Luisa."

"Luisa? I love it!" Luisa smiled.

Jessie gently shooed Carla away from his snatch with his feet and then pushed Luisa onto all fours. Two more inches of height gain had his spine feeling like it was being tugged on. The discomfort was short lived and he felt on top of the world afterwards. Grabbing the base of Luisa's tail, he pressed the fat head of his dick against Luisa's soaked mare snatch and spread her wetness on the end of his dick. Then Jessie shoved inside, feeling his boyfriend-turned-girlfriend's hot wet passage part for his girth.

Deeper and deeper, he pushed, getting less resistance than he expected from Luisa's well-muscled tunnel. It was a tight fit, but Luisa was dripping wet. It was so hot in there, so slippery, so soft.

"You have such an amazing pussy!" Jessie thrust his medial ring into her just as the pressure inside his abdomen flared up again.

"Give me everything!" Luisa begged.

"That's a good--GRRRL!" The urge to push nearly stopped Jessie from thrusting, but he challenged himself to do both at the same time. And as he hilted himself in Luisa, his balls popped into his sac.  He grunted as his body continued to expand, gaining another inch of height, even more muscle, and wider shoulders.

Instant relief poured over him followed by extreme arousal as the already satisfying weight of his balls increased dramatically. As he thrust into Luisa, they went from an inch in diameter to over three and a half inches in diameter, as big as softballs. His muscles grew and orange-brown fur covered the front of his muzzle, chest, and groin. Black fur filled in everywhere else. A pinch at his pucker and pussy was followed by him getting an equine donut and dark brown horse flesh.

 Since Luisa was too busy moaning and thrashing to stimulate her dick, Jessie reached around with one hand and started stroking. It wasn't over a foot and a half long like his, but it was still a good twelve inches and thick as a pop can. Jessie felt his pussy wink as he stroked Luisa's length.

A heated grunt from Carla got Jessie's long horse ears to pivot toward his back left. Turning his head to follow the sound, he caught Carla in the middle of jacking off while staring at his pussy. Her shaft was passing ten inches long and it was pink with black mottling on it.

"Put that beautiful dick inside me." Slowing his thrusts into Luisa for a moment, he reached back with his free hand and pulled on a muscular ass cheek to spread his snatch open.

"Yes, sir!" Carla jumped at the chance, putting her flare at Jessie's entrance.

As he felt another growth spurt hit him, Jessie thrust backwards and impaled himself with Carla's flared head.

"Oh wow!" Having a dick was one thing, being inside a twitching, needy snatch was something else entirely. Carla's awe didn't last long, it turned into sheer, unbridled lust.

As she shoved deeper into Jessie, the tingling deep in her abdomen became tension. It was hard at first to find a rhythm that matched Jessie's, but once she did, she was hilting herself in Jessie's wonderful muff over and over.

Luisa was moaning and out of breath at the same time, her snatch getting ridden so hard that her breasts were flopping everywhere. Jessie kept teasing her length. Not really going fast enough to get her off, just keeping her at max hardness. Luisa's ears quickly went fully equine and she was able to hear the smacking sounds of Carla dicking Jessie's pussy. Jessie's huffs of delight as Carla's flare and medial ring got plumper made her hot all over.

Carla grunted as she pushed, something inside her was moving outwards toward her crotch. This screwed up her thrusting for a few seconds, but Jessie didn't seem to mind.

"You ready?" Jessie grabbed Luisa's hips, clearly several inches taller than he'd been before.

"YEEEESSS!" The idea that Jessie was about to cum inside her set Luisa off. Her hot, trembling tunnel milked Jessie's length as she threw her head back and whinnied.

"Good girl!" Jessie's voice broke into a neigh as he slammed home as deep as he could, thumping his balls against Luisa's. He grabbed Luisa's full tits and squeezed them as he dumped copious amounts of jizz in his mare.

Carla needed to cum badly, but the urge to push was even stronger. As she pushed, she grunted and her horse tail pushed out of her tailbone. Then that movement in her abdomen got right above her sac and her balls plopped into it. Her dick ached with how much she needed to shoot her load and she grabbed the base of Jessie's tail before thrusting hard and fast.

"I'm--GNAAAH! CUMMING!" Carla announced to the whole room as her flare expanded, locking her deep inside Jessie's cunt. Then thick, creamy jets erupted from her equine shaft.

Jessie whinnied along with Carla, his passage sucking on her thick shaft to get all of her load. Both of them writhed in pleasure, but Jessie was having the most powerful orgasm. His dual sexes were now going off at the same time. He clutched Luisa against his front, feeling her roan fur against his black-furred chest. Staying in deep, he made tiny thrusts, loving how her breasts bounced in his hands as he rounded her belly.

Carla's balls grew to over two inches in diameter as she came. Her ears finished changing as white fur with black spots filled in on the rest of her body. Her muscles became more defined and lifted her breasts, making them more pert. She retained her feminine curves and shape, but was now an even more athletic version of herself.

"Love you so much." Jessie nuzzled Luisa's furry cheek.

"Love you too. This is so weird, but I really like the way it feels." Luisa turned her head to look back at Jessie's face.

Grabbing Luisa's dick, Jessie gave a gentle squeeze. "After I pull out, you have to use this on Carla to thank her for what she did to my pussy."

"Ngh!" Luisa clenched around Jessie. "Wait, you have a pussy? You're like me?"

"Yep, we're the same down there." He kissed Luisa's muzzle. "As it should be."

"Mmm, the things we can do to each other now."

Jessie chuckled. "Exactly."

"Thanks for the offer, Jessie, but I want to be the first to try out Mariana's new cock. Luisa should go pay Zayne a visit. I've been shipping them since freshman year." Carla was smiling while glancing at the nice thick shaft jutting up from between Mariana's legs.

With a grin, Jessie looked down at Luisa. "You heard Carla, go fuck your best friend's brand new pussy."

Luisa moaned and arched her back as her cock dripped pre on the mat below. Now she was painfully hard.

"Glad y'all are happy being freaks. Maybe now one of you eggheads can figure out how to reverse what's happening to me?" Shane's dick was only four inches long now and his balls were smaller than grapes. They were pressed firmly against his body, looking like they'd be gone in no time. His curly blonde mane and silvery-white fur were prettier than he deserved.

"At this point, all I think we'll be able to do is give you grief counseling." Jessie shook his head. "No one here can even read what's written on that machine."

"Don't you give me that! I know you and Luis--" 

"Luisa," Luisa corrected him.

"Just because you got tits now doesn't mean you're a damned girl, Luis. Get your head in the game. We have to fix this!" Shane took on a pained expression, but it looked a bit awkward on his muzzle, like he didn't know what to do with his horse lips.

"Why would I want to? You just said I was happy being a freak and you were right." After a long sigh, Luisa added, "Don't you think your machismo is kinda fake? Maybe being a girl will help you understand yourself better."

"I. AM. A. FUCKING. GUY! SO ARE YOU!" 

"I don't know what I am, but I'm certainly not a guy." Luisa shook her head.

"Carla pull out and ride Mariana while I take care of Shane," Jessie said.

"I really like the new you." Carla pulled out of Jessie and blushed as she watched her seed spill down the back of Jessie's balls before making a puddle on the gym mat. She moved to the side to give Jessie room.

"I love the new me." Jessie pulled out of Luisa, cum gushing out of her snatch the moment Jessie's flare popped free.

"Me to-oooh." Luisa let out a long breath as she flopped onto her side, feeling satisfied despite being empty. 

As Luisa settled into afterglow, Carla pushed her onto her back and then straddled her dick. Carla let herself fall, gasping as her labia collided with Luisa's cock head. Luisa whinnied, her shaft raging to full  hardness as Carla's snatch enveloped it.

"NGH! Sorry, just wanted an appetizer before my next course." Carla gasped as she worked Luisa's entire shaft into her snatch. "Oooh, girl, you have one nice dick."

"Mmm!" Luisa ran her hands over Carla's shaft, thrusting into her a couple times. This casual sexuality felt so freeing.

"Later, you mare hottie." Carla pulled off Luisa and then gave Luisa a kiss before heading toward Mariana.

Luisa had this gigantic dumb smile as she watched Carla go, but she didn't care. She'd never been this relaxed in her life.

As Jessie walked over to Shane, cum dripping from his gaping pussy, she towered over him, over everyone.

"Finally, I knew you couldn't just watch me suffer." Shane stammered, his confidence nowhere to be found.

"Oh, I just wanted a closer view." Jessie sat next to Shane.

Shane blushed so deeply that it could be seen on his equine nose and on the insides of his ears.

While Jessie, Luisa, and Carla had been going at it, a neigh from Rosie echoed throughout the room. In the span of a few thrusts, her prick grew to over thirteen inches long. Mariana's snatch felt incredibly tight, but was somehow still stretching. Rosie's snatch, on the other hand, was clenching tighter and tighter. She wasn't worried about it, having a dick was plenty and though she missed her tits, Mariana's groping of her pecs was proving they were plenty sensitive. With Mariana's hands on her pecs, she could feel the way they flexed when she pulled Mariana's hips toward her. Her nipples were sensitive too, making her gasp when Mariana teased them.

"Tomboy to boy boy." Mariana mumbled in between panting moans. 

Mariana's brain was fuzzy from a litany of little orgasms she'd lost count of. Though she knew the big one was coming. It was just how she worked and the telltale pins and needles sensation in her fingertips and ear tips was getting rather pervasive. What she didn't realize was that her ears were getting longer and fuzzier.

"Heck yes!" Rosie thrust harder, her ears extending as well. Her tailbone was where most of the action was, though. Vertebrae were cracking into place, extending out from her body, thinly covered by skin. She got a bit sore back there just before it practically exploded from her backside, medium-brown fur and black horse hair slowly covering it.

"CUM! CUM RIGHT NOW!" Mariana begged. The tingling was turning into heat, pure white-hot pleasure.

Rosie had been hanging on by a thread and hearing  Mariana beg was the last straw. Hilting herself in Mariana as her dick delivered her payload, she felt it gain inches of length. Her balls hung heavier as there was a pinch along her pussy lips as they sealed up, leaving her body fully masculine. Her equine tailhole puffed up into a donut while her balls reached just over two inches in diameter, hanging proudly between her legs. A wave of euphoria accompanied her transformation and as she neighed in pleasure, her muzzle, tail, and ears finished going fully equine. 

Mariana whinnied, her cunt happier than ever because it was stuffed to the brim. The sensation of fullness built because Rosie's flare was trapping her cum inside. The whole time she was cumming, she softly stroked her cock, blowing her own mind at how good it felt to be a herm. Her tailhole went equine, and her muzzle finished forming along with her ears. Her tail was just starting to form.

Their heavy breaths were the only thing that broke the silence between them for the next couple minutes as they stared at each other in awe of what had just happened.

Rosie clenched her teeth as her leg cramped, angry about the fact she'd done strength training not long before this nice hard fuck. She pulled out immediately, rubbing the angry knot in her right quad.

"You okay?" Mariana sat up, Rosie's cum pouring out of her gaping mare muff.

"Just a cramp." Rosie breathed through the pain and eventually collapsed onto the mat.  Her toes ached along with the cramp as they merged into hooves.

"Sorry." Mariana moved so she was next to Rosie.

"It's not your fault." Rosie smiled. "I should be thanking you."

"No, I should be thanking you. That was so so good." She kissed Rosie on the side of her muzzle.

"Things are going to be really complicated now." Rosie gestured toward the others.

"A good kind of complicated." Mariana traced a couple fingers across the underside of her shaft and bit her lip. She was so dang hard still.

"True, at least in our case. Seems you like this as much as I do." Rosie chuckled. "Actually, you might've gotten the better deal, you have both still."

"Oh no! You lost your pussy?"

Rosie reached under her balls and found smooth horse hide. "Appears so. Though, I never really liked it that much."

"Huh, are you trans?" Mariana looked over Rosie's very masculine body.

"I was  going to start hormones after I got out of high school." Rosie said the next part more quietly. "I started taking testosterone last month, but Coach convinced me it might get me disqualified, so I stopped."

"I don't think we have to worry about that anymore. Only sport we'll be doing now is orgy-athalons." Mariana laughed.

Rosie laughed right along with her.

"Should we call you 'he' now?"

"Nah, I want to fuck with gender norms for a while."

"Fucking gender norms is way better than tossing molotov cocktails at them." Carla sat down next to Mariana. "Which was my original modus operandi."

"Carla, I love that black-spotted fur on you. So pretty!" Mariana glomped Carla. 

"Ngh! Fuck you're hard!" The moment Mariana's throbbing shaft was against Carla's sheath, blood rushed southwards and Carla's flare emerged.

Rosie just sat next to them, slowly playing with her sheath. Their best friend energy made them that much hotter to watch.

"Yeah, it hasn't cum yet." Mariana sniffed the nape of Carla's neck. She'd never smelled this good before. "Do you have a pussy still?" 

"Is that your roundabout way of asking to fuck me?" Carla giggled.

"Maybe? You just smell so good and I want to press up against you." Thrusting her cock against Carla's front, Mariana groaned in arousal.

"I've had lesbian urges toward you since puberty. This is like a dream come true." Carla sighed happily.

"I don't know why, but that makes me so fucking horny!" Mariana grabbed Carla tightly and thrust against Carla's emerging dick.

Carla grabbed Mariana and rolled so Mariana was on her back. The surprise position change got Mariana to let go and Carla seized the moment by grabbing Mariana's dick and sitting on it. They both whinnied, arching their backs as Carla took more and more of Mariana's meat inside her.

It was a hard feat because Mariana's dick was growing ever larger as Carla tried to get it all inside herself. Carla moved her hips in little circles and wiggled as she got inch after inch to disappear inside her. With disbelief clear on her face, Carla felt the bulge Mariana's length was making in her belly. Her pussy winked from how turned on she was to feel Mariana's cock grow larger inside her with her hands.

Gasping, Mariana shoved upwards. Carla yelped and then moaned as she started to ride Mariana's shaft. It was glorious, Mariana was reaching places she didn't even know she had. 

Mariana was grunting and Carla could feel her pushing with her abdominal muscles.

Carla's heart raced as she realized exactly what that pushing meant. She took Mariana's hand in hers and squeezed. "Just a little more, you almost got it."

Mariana grit her teeth and pushed hard, her balls launching into her sac hard enough for her sac to bounce. Immediately, without her having any control over it, her cock started lurching.

"OH FUCK! I'M CUUUUUMMIIIIING!" Mariana cried out as her cock grew to seventeen inches long, challenging Carla's ability to stretch. Her balls quickly grew to over three inches in diameter, putting her nearly equal to Jessie.

As Mariana's massive flare made a clear bulge in Carla's abdomen, Rosie came, her seed hitting Carla's tits and chest. Carla neighed and threw her head back, her passage so taut that it struggled to contract along Mariana's length. Another wave of orgasm hit her as her belly swelled from Mariana's deluge of spunk. She looked down at her pert tits, cum-rounded belly, and watched as her pink and black mottled dick grew to sixteen-inches long, pushing up into Mariana's furry cleavage. The view made her whole body tremble with delight.

"Hooh, hoooooh fuck!" Carla's flare engorged as her shaft twitched. She pressed Mariana's F-cup tits against the sides of her shaft and started thrusting madly, her whole body quivering, on the edge of a herm double-orgasm. 

Mariana tilted her head down to look just in time to get her nose and lips blasted with cum. She opened her mouth and stretched her neck to get the end of Carla's length into her mouth. She could feel Carla's prostate pulsing as she drank down Carla's delicious cream.

Mariana's tail grew as her toes merged into hooves and her chocolate-brown fur spread to cover the rest of her skin. Carla's muzzle finished forming while her white fur with black spots spread until her mane and hair had clear streaks of white and black. Ropes of Rosie's cum added extra marbling to Carla's black spots.

The moment Carla caught her breath, she kissed Mariana deeply, enjoying the taste of her own seed in Mariana's maw. Mariana grabbed her and held her close while they just made out, Carla's shaft and hers slowly softening.

When they broke the kiss, they both tried to talk at the same time.

"You go first." Mariana stroked the side of Carla's muzzle, feeling Carla's fur.

"I thought you were beautiful before, but now you're so hung you barely fit in me, your hips are wider, your tits are even bigger, and you're covered in gorgeous fur." Carla kissed Mariana's chin. "But above all else, you're kind, smart, and we're both on the spectrum. We really get each other." Carla paused. "Maybe I'm just high on oxytocin, but I have to ask: will you please be my girlfriend?"

"I don't know what the hell just happened to us, but I'm definitely into girls like us. So yeah, let's give it a try!" Mariana grinned.

Carla started getting hard again from sheer euphoria and buried her muzzle in the crook of Mariana's neck, tears of joy streaming down her cheeks.

"Your tits aren't as big as mine, but they're so perky. Your dick is huge, your fur and mane have an awesome pattern, your muscles are perfectly toned, and your pussy is incredible. I wish I'd been turned on by you before because you're so giving, so fun to be around, and notice things no one else does. I don't know if I mean it as a friend or lover or what, but knowing you all these years...I love you, Carla." Mariana held Carla as Carla was overwhelmed by emotion.

"I-I love you too." Carla's tears came faster.

Rosie just sat there quietly, her eyes getting wet. They were awkward, loquacious, and bizarre at times, but most of all, they were awesome teammates.

Back when Rosie first neighed from her sudden cock growth, Andy neighed right along with her. Having a mare cunt already felt incredible, but being penetrated by Zayne was beyond anything he imagined. There was this insane tension inside him as Zayne's thick cock went deeper and deeper, but that tension felt good, oh so good. Friction between his passage and Zayne's shaft was intense. He could feel each ring-shaped wrinkle as it entered. It was a side effect of how horsecocks compacted and it was also perfection.

The strong floral musk from behind Zayne's balls reminded Andy of why he decided on the reverse cowgirl position. Reaching under Zayne's balls, Andy found a depression with a nub at the front and rubbed.

Zayne yelped and lost track of his thrusting while Andy's fingertips found his budding snatch. As Andy rubbed, Zayne's mound plumped up and the crease between his labia deepened. He could hardly breathe because he couldn't stop moaning. Then it felt as if something was being pushed up into his abdomen as a clear sensation of moisture developed down there. The farther into him he felt that pushing, the more moisture there was and then Andy's fingers actually slipped inside his virgin tunnel.

"Oh my God! I have a--HAAAAH! A PUSSY!?" 

"A really awesome one!" Andy added another finger while rubbing his palm against Zayne's massive, grape-sized clit.

"NYAAAAH!" Zayne felt his cunt wink for the first time and since Andy's fingers were in there, his clenching caused an orgasmic sensation of fullness. He drenched Andy's hand as he had his first vaginal orgasm.

Zayne felt like he was careening off a cliff and his hands found Andy's upper arms which he held onto for dear life. His whole body ached, but in a way that felt good, a way that made him tense and then release every muscle in his body. His toes merged into hooves and his ears grew longer, gaining fur as they went. His nose disappeared into his face while his jaws cracked, pushing outwards. Reddish-brown fur spread up his neck and started covering his face.

As Zayne writhed below him, Andy felt just how strong Zayne's thighs and legs were and hearing Zayne's whinny of pleasure made him hot all over. 

"Having a pussy is pretty great, isn't it?" Andy looked back at Zayne as he spoke.

Zayne nodded weakly, still overwhelmed by what had just happened.

"Feeling a bit shy and girly, are we?" Andy pulled his fingers out of Zayne and licked them off.

"Who says I'm girly?" Zayne's attention snapped back to the present moment.

"Oh, sorry, just saw how good you got off from your pussy and--"

"I'll show you how not a girl I am!"  Zayne lifted Andy off of him and then stood up while dragging Andy to his feet.

"Being girly isn't a bad thing, sometimes I feel girly." Andy sputtered as he was dragged to the wall, just to the right of the window.

"That's right, you're the girl." Zayne lifted Andy up against the wall and then shoved his cock into Andy's cunt, pinning Andy between himself and the wall.

Andy moaned and arched his back as Zayne stuffed more and more of his dick inside, stretching Andy faster and more vigorously than before. Zayne's powerful thrusts made his breasts flail on his chest.

Andy kept thinking he'd get to the medial ring, but Zayne's shaft was surging inside him, getting longer and thicker while Zayne's balls got bigger to match. He worked his hips, side to side, to ease Zayne's prick in faster and he felt the medial ring brush against his labia.

"NGH! MORE!" Zayne grabbed his hips and pulled him down. Then he panted out, "Your pussy...is fucking...unbelieveable."

Andy moaned. Hearing someone say that was like being drizzled with liquid happiness.

The medial ring slipped in, flicking Andy's clit as it did. Andy whinnied, his sex cumming for the first time and making him squirm atop Zayne. White fur with light reddish-brown spots filled in on his abdomen, which had a clear bulge from Zayne's girth. His own dick grew as Zayne pounded him right through his orgasm.

There was so much pleasure, even after his orgasm was over. Zayne seemed determined to make him feel feminine and he wasn't minding one bit. Since his back was up against the wall, he clearly felt his tailbone pushing out. Luckily, it was able to go straight down. As it grew, his toes tingled and he felt them fusing together as his toenails got longer. There was some prickling from fur growth on his legs and an aching from his feet. Soon he had furry legs, a long tail with luxurious red horse hair and hooves.

"Cum again, girl! I can do this all day!" No one was actively competing with Zayne, but he still said it.

Even though Andy wasn't sure he wanted to be called a "girl," especially by Zayne, he came again. His ears burned, lengthening in the span of a few seconds and his teeth pinched in his gums. As his muzzle finished pushing out, he neighed and gyrated, his dick soaking Zayne's fur with precum.

"Bet you didn't think I'd last this--FUCK!" Zayne's voice broke as Luisa's dick entered his pussy.

"NGH! Sorry Zayne, but your pussy was dripping all over the floor and I couldn't resist." Luisa shoved several inches in with ease. "My God you're wet!" 

"Haah!" Zayne was at a rare loss for words as Luisa worked his virgin passage open. Luisa's flare was wide enough that he knew exactly where it was at all times and he felt muscles inside his passage he barely knew how to use. He kept clenching and then relaxing, over and over. Even though he didn't want to admit it, fucking Andy felt a thousand times more amazing when he was getting some too.

It was odd to see Zayne vulnerable, but it was also smoking hot. Luisa grabbed Zayne's tits and pressed her own against his back as she made short thrusts, forcing Zayne's hips to make the same motions into Andy. Zayne's moans from having his tits played with while his muff was full of dick were high pitched and uneven. For once, Zayne had lost control of the situation. His moans got louder as his muzzle became fully equine and his ears stretched out the rest of the way.

Luisa was forced to make some room as Zayne's tail practically exploded from his backside, getting covered in black horse hair as it did so. Pulling his tail out of the way, Luisa redoubled her efforts. She could feel his snatch quivering as her cock reached fourteen inches of length inside him. It was thicker than her wrists and that mixture of tight and stretchy of Zayne's vaginal walls was divine.

Andy yelped as Zayne's shaft got harder than ever, his flare stretching Andy's deepest reaches. As Andy's ears finished going horsey, his white fur with reddish-brown spots filled in to cover every bare patch of skin.

Gritting his teeth and growling with effort, Zayne shoved his sensitive snatch back against Luisa's thrusts and then slammed into Andy. As he did this, a warmth in his womb and prostate built until it was a tingling ache. His whole body was shaking, only his stubbornness holding his orgasm at bay.

Luisa thrust harder and harder, grunting at the effort. She could feel Andy's dick rubbing against hers through Zayne's belly. Andy was moaning almost as loud as Zayne. Feeling her cock get harder and harder right along with Zayne's gave Luisa shaky legs. Her effort to make Zayne cum first soon backfired as her balls hiked up, her shaft pulsed inside him, and she spurted spooge in his clenching cunny.

"Quit it with your machismo and CUM WITH ME!" Luisa grabbed Zayne's nipples and squeezed them. It was hard because his breasts were up against Andy's chest, but it was worth the effort.

Clenching every muscle in his body didn't stop the ecstatic tide within Zayne. His clit was trapped between Luisa's girth and his heavy balls. His shaft was buried to the hilt inside Andy's amazing snatch and his nipples were so sensitive between Luisa's fingers that he could barely comprehend the pleasure coming from them. His neigh initially came out as a squeak, but it soon grew to something more like a roar. His body quaked, his snatch milked Luisa's length, and he lost his load inside of Andy's horse muff.

A hot wave of bliss crashed within Andy as he felt Zayne's length pump cum into his sensitive tunnel. As he came, his passage undulating around Zayne, his own prick became a fountain. Andy's cum got all over Zayne's neck, face, tits, and belly, soon soaking Andy's fur as well. Andy's vision went white for a moment as he let loose a scream that ended in a neigh.

Luisa groaned, the satisfaction of cumming inside her braggart of a best friend while pressing her tits against his back was immeasurable. Her mix of red and white fur spread to cover bare patches on her legs and back, finishing her hybridization.

As they all panted from the exertion of what they'd just done, Andy said, "Not so bad being a bit girly, is it?"

"I thought you were loud before, but wow, when you have a cock in you, you're deafening." Luisa chuckled.

Zayne blushed, unable to look Andy in the eye.

"I love seeing your plans backfire." Andy grinned.

"Ditto." Luisa licked the side of Zayne's neck.

"Nyaah!" Zayne tried to hide his head, but being sandwiched between them made that impossible. "S-shut up!"

"Be nice or I'll pull out." Luisa ran her hands down Zayne's sides, caressing him.

"I hate you sometimes." Zayne bit his lip.

"I hate you too." Luisa gave Zayne a kiss on the cheek, starting to get a handle on her horse lips.

"Luis, you're cool, and don't let anyone tell you different." Andy craned his neck to look Luisa in the eye.

"It's Luisa now."

"Even better." Andy smiled, making a nice curve at the edges of his muzzle. 

As Andy was looking at Luisa, he caught a bit of movement on the other side of the room. Shifting his gaze to Jessie and Shane, he saw that they were having a rather animated conversation.

"Have you even touched your new parts? I was horrified by this thing until I got to know it." Jessie patted his sheath.

"N-no." Shane was looking at Jessie like he'd just seen him for the first time. "Wait, are you a guy, now?"

"I feel like I can't give you a satisfying answer to that question." Jessie shrugged and then reached toward Shane's breasts. "These would make a lot of ladies jealous."

As Jessie's hands got close to his breasts, Shane moaned.

"It would be rude to just grope you." Jessie stopped millimeters from putting his hands on Shane's tits and then started pulling them away.

"No it wouldn't." Shane bit his lip.

"So you want me to touch them?" 

"I'm fucking horny, okay? It's not my fault this stupid body wants to get--" When Shane stopped speaking, his eyes wide in shock over what he'd been about to say.

"Groped? Cuddled close by a muscly masc-leaning enby hermaphrodite and then bred like a mare in heat?" Jessie grinned.

Shane squirmed and moaned as another inch of his cock receded into him and his body ached, his tits and ass gaining curvature as he got shorter.

Jessie lightly put his hands on Shane's breasts.

"AAAHHNNNN!" Shane arched his back to press his breasts more firmly against Jessie's hands.

The sound of Shane nearly cumming from the simple touch of his hands got Jessie's dick to start pushing back out of his sheath. Curious about what was going on in Shane's crotch, Jessie pet Shane's fur and worked his way down. The closer his hand got to Shane's groin, the louder Shane moaned.

Stopping just short again, he looked into Shane's eyes. "Do you want to be touched down here?"

"PLEASE! It's throbbing so much!" Shane arched his back in expectation.

Jessie carefully felt Shane's sac just as his balls got pulled into him and his sac formed a cleft in the middle. That cleft grew as the flesh of his sac folded into labia. As his dick shrank from an inch and a half long to only an inch long, Jessie stroked it.

"AAAAH FUCK!" Shane thrust into Jessie's fingers, cumming as his cock shortened and changed shape until it was a nice big horse clit.

Keeping a firm grip on Shane's left tit and massaging it, Jessie made sure Shane enjoyed his first female orgasm. Since Shane had a full-on clit before he stopped cumming, Jessie felt around a bit and his fingers slipped into the cleft between Shane's labia. That cleft opened up into a voluptuous horse pussy and soaked Jessie's fingers. Feeling that wet, needy hole under his fingertips, Jessie got so hard that his dick pressed against  Shane's thigh.

Shane's equine nostrils flared as he came down from his orgasm. The scent of Jessie's dick drew his eyes.

"If you're a good girl, I'll put it in you." Jessie ran his fingers along Shane's labia, not penetrating.

Arching his back, Shane whinnied as his cunt winked. He lost another inch of height, his breasts swelling past D-cups.

"You're a lot more likable when you're this thirsty."

"I don't know what's happening. I shouldn't want, umm--"

"Dick?"

"Y-yeah." Shane couldn't meet Jessie's eyes.

"It's probably instinctual." Jessie hooked his pointer and middle fingers over Shane's clit and shoved the tips into him. "You've got a hole and your body wants it filled."

"HyyaaaAAHHH!" Shane thrashed in pleasure.

Jessie took his fingers away so Shane could listen. "I want to help, I truly do, but you've been a little shit for as long as I've known you." Jessie thought for a moment and then smiled wide. "Beg me to fuck you and I'll consider it."

"Please?" Shane cringed.

"Guess you don't really need me after all." Jessie started to turn away.

"PLEASE FUCK ME! I NEED YOU!"

Everyone in the room turned to look at Shane.

"Tell me you want everyone to see me stretch your pussy with my huge dick."

"I want everyone to watch you stretch my pussy with your giant dick!" A powerful wink got a moan out of Shane as girl juice poured out of his snatch. His breasts ballooned to E-cups as he got two inches shorter. The size difference between him and Jessie was becoming very obvious.

Jessie grabbed Shane's legs as his toes merged into hooves. Then he pressed his flare against Shane's sensitive labia. As Shane winked, he popped the head of his cock into Shane's quivering passage. He grunted, Shane whinnied and rocked his hips, an orgasm blindsiding him.

"Mmm! Yeah. Seeing you cum while stuffed with my dick is very satisfying." Jessie could feel Shane's abdominal muscles contracting and relaxing as he writhed. He reveled in the sensation of stuffing him with more dick.

"Can't believe--NGH!--how good this feels." Shane was panting and had to space out his words.

"It would feel even better if you played with your tits." Grabbing Shane's wrists, he planted his hands on his tits. Then he shoved in up to his medial ring in one long stroke, not caring if he was being a bit rough.

Squeezing and toying with his boobs, Shane figured out what gave him the most pleasure. Soon, his fingers were tugging on his plump nipples. As Jessie popped his medial ring in, Shane came again.

"NYAAAAAH!" Shane arched his back and kicked his hooves.

"Geez girl, I think you needed cock even more than Luisa." Jessie chuckled.

"S-shut up!" Shane bit his lip. His horse muzzle had finished forming and a bit of fur filled in on his shoulders.

"You're gorgeous and you haven't even finished changing yet. I bet you're going to have the biggest tits out of all of us."

A needy moan escaped Shane's lips as he groped his expanding tits. He couldn't help but to buck his hips and match Jessie's rhythm for the first time since Jessie entered him.

"Oh, you like that?" Jessie slowed his thrusting and leaned down to look into Shane's eyes. "Let's make a deal. I'm gonna call you 'Slut' until I cum so much in you that you look pregnant. Then, we'll see if you've been a good enough girl to choose your own name."

"NGH!" Slut spread her legs so Jessie had more freedom of movement. "Whatever, just don't stop!"

"Good girl!" Jessie thrust the rest of his dick into Slut, stretching Slut's pussy to the limit. Then he started pounding her.

As she became another inch shorter and her tits pulsed, becoming F-cups, Slut threw her head back and wailed in pleasure. She had everyone's attention.

"Did you break Shane?" Luisa pulled out of Zayne, making Zayne moan before cum gushed out of his pussy.

"No, I fixed her." Jessie grabbed Slut's hips and thrust harder, making Slut's breasts flail.

Slut's moans got higher and higher. Her wide shoulders narrowed as her body feminized rapidly. A sudden tightness in her hips got released as they expanded outward, making more room for Jessie's dick inside her while her ass plumped up into a true work of erotic art.

"Everyone, Slut needs a cum bath. Get over here and do your part." Jessie grunted as he spanked Slut's ass with his balls, going so hard he had to hold tight onto Slut's hips to stop her from sliding away.

Zayne got up to Slut's side and stroked his dick to get it nice and hard.

"Slut needs something to suck on, could you help her out?" Jessie grinned at Zayne.

"Jessic--I mean Jessie, we need to hang out more." Zayne moved to Slut's head and tilted it back. Then he caressed the sides of her muzzle until she relaxed. He shoved his horse dick in her mouth.

Slut licked at Zayne's dick, loving the taste of the mixture of stallion jizz and feminine nectar that still coated it. With her horse muzzle, it was easy to take inch after inch of his dick. It was so tasty, it was so hard, and it made her so horny to suck on it that she wanted all of it. It took a few tries, but she eventually managed to relax her throat enough that Zayne could shove the whole thing in.

Now she felt like she was drifting on a cloud. Warm and content and tingling all over her body. The sensation was similar to when she came, but it was a lot stronger. Someone she couldn't see slipped the end of their shaft under her left breast and put their hand atop it. Then they started thrusting, using her giant tit to stimulate themself. Another teammate did the same thing and she could feel their dicks kissing at the end of every thrust. Reaching out, she found boobs on both of them. Other girls’ boobs felt so good in her hands, but nothing felt as good as their cocks.

Two classmates grabbed her hands, each of them putting her hands on their pricks. She felt around a bit, enjoying the hot, pulsing flesh, before gripping each of them just behind the flare and stroking. Six people were hard because of her, six people wanted to fuck her. She was the belle of the ball.

Everyone had taken positions around Slut and there wasn't much room, so Mariana went up to Jessie and whispered in his ear. "Can I use your pussy?"

Jessie nodded and lifted his tail like it was no big deal.

Mariana got behind Jessie, her heart pounding. Something about seeing a muff between his legs while the rest of him was muscular and masculine was making her dizzy with arousal. She put the head of her dick at his entrance and then pushed inside, groaning at how tight-but-velvety his cunt was. He soon relaxed and his muff got wetter, easing her entry. Her cock was thicker than Carla's, but she worked it in, counterpointing his rhythm in and out of Slut until she had every inch inside him. Then she hugged him loosely around the waist, feeling his abs against her arms and pressing her breasts against his back whenever he pulled part-way out of Slut.

She used her athletic body to steel herself and catch his backwards thrusts in a way that hilted her deep inside him. It wasn't long until the rest of the room fell away and she was just reveling in the sensation of her dick parting his depths over and over.

Rosie was stupefied by how good Slut was at giving hand jobs. The experience she'd had with her own dick was getting utilized to the utmost extent. Rosie could feel her flare flaring, and that pressure in her prostate. She didn't want to be the first to blow, but she was still high on finally having a dick. Directly across from Rosie, Andy was occupying Slut's other hand while rubbing at his pussy and pinching one of his nipples. His moans were as sharp as the uncontrolled thrusts he was making with his hips.

With a neigh and a few jagged thrusts, Rosie splattered Slut's right leg and hip with copious amounts of pearly white. Watching Rosie's flared cock unload all over Slut was all it took to tip Luisa over the edge and she felt her own flare expand while her shaft lurched. She made quick little thrusts under Slut's tit before whinnying and drenching Slut's chest with jizz. Slut moved her hand from Luisa's erection to Luisa's spooge-dripping mare muff, reaching behind the herm's balls. She was rewarded with harder spurts and loud gasps as Luisa clenched around her fingers.

Slut moaned louder and sucked harder on Zayne's cock, her desire for cum increasing with every ounce that soaked into her fur.

Zayne's hips moved shakily. There was no mistaking how thirsty Slut was for his seed and he couldn't take it. His flare expanded, his whole body burned with a need for release, and he shoved his dick in until his balls were right up against her flat horse nose. Then he gasped as he lost his load down her welcoming throat.

In that moment where Zayne's delicious, salty seed poured out faster than she could swallow, Slut came hard. Her cries were muffled by the giant prick in her mouth, but the erotic gyrations of her body clearly illustrated how incredible she felt. Everyone thought she was hot and wanted to fuck her. Three of them were cumming right this moment and everyone else was so close. She could feel how hard their dicks were, how close they were to popping. Jessie's dick was harder than ever in her pussy, the flare starting to tug at her insides.

A final inch of height went away, her breasts reaching an impressive G-cup size. Her orgasm was so intense that all she could think about was how much she loved being completely surrounded by dicks and how good they smelled.

Andy and Carla came along with Slut, both of them shuddering as they did so. 

Carla pushed her dick forward until her cock head was up against Luisa's. Since both Luisa and her were spurting at the same time between Slut's breasts, their jizz shot out like a sprinkler, getting little droplets on everyone's fur. They could feel each other's  shafts pulse as jet after jet of creamy goodness came out.

Andy yelped, his cunt clenching as his length jumped in Slut's hand. Slut aimed his dick at her abdomen as stallion icing shot out. Neighing and fidgeting as he came hard, Andy felt a tiny bit jealous of Slut getting coated from head to hoof in spunk.

Looking back at Mariana, Jessie said, "Cum in me. Right now!" He clenched around Mariana's dick and shoved backwards extra hard.

"OH FUCK!" Mariana grabbed Jessie tightly, pressing her entire front against him as she felt her shaft pulse from base to tip. Her flare locked her inside as she felt contractions run all the way up her length, fighting the tightness inside Jessie. A wave of dizzying pleasure accompanied her giving Jessie a cream filling.

Mariana's dick was huge and it felt even more massive as she came. Jessie's snatch went off so hard he froze for a moment and gasped. He felt his sex spasm around her, coaxing her seed as deep as possible while a delightful warm tingle spread throughout his body. He couldn't relax, though. His prick was painfully hard and ready to burst.

"Get ready, Slut! Here. I. COME!" Jessie grunted, as he used his powerful body to slam inside Slut even with Mariana's added weight.

Fighting the powerful waves of contractions inside Slut, Jessie's dick erupted. His shaft was so big that the outline of it was visible, but that outline quickly lost clarity as he came and came and came. Having the biggest balls and body of the entire group, he rounded her belly to the point she did indeed look pregnant and the whole time, she kept orgasming.

Slut felt like the caramel on top of a sundae in the hot sun. The boundary between her body and everyone else's was getting ever so fuzzy. Individual sensations like pressure from Jessie's immense load, the throbbing of the dicks in her hands and under her breasts, the feeling of Zayne's smooth balls against her nose, or the way her clit was pressed up against Jessie's sheath all lost their distinctiveness. Intimacy, pure and simple, was what she felt. Every person here had used her for pleasure and she had given back all she had. Now all that was left was a pleasant warmth.

Zayne pulling out of her mouth brought her back to the present. As she looked around at the pleased smiles of her new friends, she smiled right back.

Jessie put his hand on the side of her muzzle and looked into her eyes. "Good girl, do you want a new name?"

"No, Slut feels perfect." She looked around for a moment. "So who wants to cum inside me next?"

* * * * *

In the morning, when Coach Roberts opened the door to what should've been labeled the "Men's" partition of the lunchroom, the powerful musk that hit him made his eyes water. "What the fuck!?"

An erotic tangle of horse hybrids with cum caked in their fur in a dizzying array of genders were lying on top of gym mats in the center of the room.

Coach Roberts gently shut the door, unlocked his phone, and searched, "Countries that don't have extradition treaties with the USA." Thirty seconds later, he bought a plane ticket to Cape Verde. On his way out of the school, he dropped his school ID and keys in the office's mail slot. Then he got in his car and drove to the airport, never to be seen again.

The eight hybridized members of The Mustangs were disqualified from competing in sports, but they had plenty of group activities to keep them occupied. Slut became the center of it all, her need to be used over and over providing cohesion to the entire team. In return, everyone helped her with her studies, making sure she actually understood the lessons. This effort was rewarded when all of them got into the same college and rented a house together. A house with a big living room that they took all the furniture out of and replaced with stain-proof padded floor.


THE END


I’d like to acknowledge my $20+ patrons: AJ, Arkona Kothe, Navajo Demar, Tiliquain, Warialinth, and Xaziana Tenebris for helping make all this possible. Thank you! Thanks to all my other patrons as well. Every one of you rocks!