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11 months ago

Testing a New Supplement

Testing A New Supplement

Here's a fun story I wrote for a contest on Gayspiralstories. I didn't place, but it was still fun to write! I'll have to write some more!

'Testing A New Supplement' by Ultram0th
gayspiralstories.com
At the behest of his roommate, college jock Viktor decides to volunteer for a new drug trial. However, little does Viktor know that this new

“So, what is this exactly?” Viktor asked as he examined the pink capsule pill that was handed to him. It looked like an ordinary pill from any generic vitamin store, but it was allegedly some sort of miracle drug on the cusp of a science breakthrough.

Ethan adjusted his thick-rimmed glasses as he animatedly gestured at the pill. “It’s the latest and greatest in pharmacology,” the nerd explained. “I’ve been working day and night all year to develop this drug. It’s a world class steroid that will help guys build mass, almost instantaneous.”

“‘Instantaneous’? Bullshit,” Viktor scoffed as he studied the pill some more.

When Viktor’s college roommate, Ethan, had eagerly rushed back to their dorm to announce that some members of his biology department were assisting with the development of the new miracle steroid supplement and needed volunteers (paid volunteers), he’d immediately brought a prototype over to Viktor.

Viktor practically lived in the gym, perfecting his body so that he could maintain his position as the star player on the college baseball team. His body was blessed with toned and impressive muscles, and Viktor loved to show them off. He frequently wore tight shirts that displayed his chiseled pecs, and form-fitting jeans that cupped his toned butt and allowed a sneak peek at his sizable bulge. The jock was a total hunk, and Viktor knew it. And he absolutely used his good looks to his advantage, earning himself a reputation as a total ladies’ man on campus, sleeping his way through sororities left and right.

Viktor was known as a total alpha.

It was ironic that he’d gotten stuck with Ethan as a roommate.

Ethan was a total nerd, through and through. The short, skinny dweeb was so utterly tiny, and he wore thick glasses that made him look all buggy. It was obvious that the little guy had a thing for his hunky roommate; and despite having zero interest in guys, Viktor would sometimes tease the little guy by walking around their shared dorm in nothing but his boxer briefs, letting his chiseled pecs be on full display for the nerd to drool over.

Even now as Viktor held the little experimental pill in his grip, he was clad in just his mesh shorts, having just returned from the gym. His pectoral muscles were pumped from chest day.

Ethan shrugged his narrow shoulders. “That’s why the biology department’s paying you thirty dollars, to find out.”

“True,” Viktor hummed. “Thirty bucks is thirty bucks.”

Viktor popped the pill into his mouth, swallowing it down dry.

“Great!” Ethan virtually cheered. “Now all we have to do is monitor and record the results. How’re you feeling now?”

“I feel fine,” Viktor snorted, rolling his eyes at the nerd’s eagerness. He couldn’t help but chuckle inwardly at the thought of some sort of brand new steroid promising results in a few minutes. If anything, he figured he’d just get a minor stomach ache later in the night. “Maybe I got a placebo— UUGHhhh!”

Viktor felt all of his powerful muscles tense up at once, making it look like he was flexing. His body felt really warm, as if he’d just finished a marathon, sweat starting to drip down from his pores in a snap. However, the jock’s attention quickly became alerted to the fact that his impressive seven-and-a-half inch cock rocketed straight to attention, tenting out his gym shorts noticeably.

At first, the stud blushed at being rock hard in front of the small gay guy, but his mind was quickly overcome by a heavy haze of lust. His cock throbbed and ached for release, and Viktor could barely control himself, instinctually reaching down to tear his shorts away so he could take care of it.

Ethan chuckled as the large, alpha stud jerked himself off. Viktor wanted to bark at him and tell him to go away, but he was far too concerned with what he was starting to feel— or what he wasn’t feeling. No matter how hard or long he tugged on his hard cock, he couldn’t feel the regular jolts of pleasure emanating from it.

Viktor grit his teeth as he jerked himself off, but he was getting nowhere near climax. In fact, he could only feel his sexual tension starting to build, his knees weakening and his heart racing as he grew desperate to get off. He even knitted his eyebrows as his throbbing cock elicited zero sexual responses.

“Uhhhh, what’s happening?” Viktor whined, his voice cracking as his cock continued to spasm.

“Just relax,” Ethan said, his voice low and calculating. “You’re a part of a medical science breakthrough.”

Viktor’s face was cherry red as his large bicep flexed with power as he jerked his hard cock, all to no avail. He then winced when he felt his other muscled arm moving on its own accord, without any thought of his own, reaching around himself to his backside. His eyes widened when he felt one of his thick fingers pausing above his tight hole.

“OOOhhhh!” Viktor squealed with pleasure as he inserted a finger inside. His toes curled and his eyes rolled back as he fingered himself in front of his roommate. Viktor had never been penetrated before, and while he maintained the slightest coherence to be begging himself to stop, he’d never felt such pleasure. Viktor’s embarrassment was quickly clouded over as the stud heatedly fingered himself, adding another and then a third one, his mouth wide open as he loudly moaned like a needy slut.

Waves of pleasure crashed over the moaning jock until he could feel a sort of pressure starting to grow inside of him, getting larger and larger until it felt as if a bubble burst.

“GGNnnuuaaa!” Viktor cried as he came, his thick cock spasming as he blew his load all over his muscled chest. His fingers still securely lodged in his ass, Viktor’s massive pecs heaved as he tried to catch his breath after possibly blowing the largest load of his life. “What the fuck was that— uuughhh!” He tensed up, his cock shooting straight up and blowing another large load, his muscles twitching with masculine power as he came.

“It’s working!” Ethan exclaimed excitedly.

Before he could ask what the nerd had meant by that, Viktor felt his impressive muscles tense up as he seemingly was stuck in a perpetual orgasm. His cock kept throbbing and cumming, shooting load after load as the stunned college jock moaned loudly with each burst. Viktor looked down, his face beet red from humiliation before going ghostly white when he noticed something horrible.

Every time his cock blew a load, it grew smaller and smaller. It was still rock hard, but as it throbbed and came, it got yanked further into his body, getting tinier by the second.

“Wh-what!?” Viktor sputtered as he came and reached down at to grab at his shrinking cock, but then he felt something else behind him.

As he shuffled his feet, Viktor felt an unknown jiggling sensation emanating from his backside. The panicked stud looked over his broad shoulder and gasped loudly as he witnessed his proportional butt shudder and pull away from him, growing larger and rounder with each passing second.

“What’s happening to meeeee?” Viktor moaned as he kept cumming, panicking as his cock shrank and his butt grew, all the while the other man kept eying him hungrily as he changed.

Viktor’s ass ballooned out from his back, defying gravity as it blew up. It jutted out at a near ninety degree angle from his back, forming a perfect shelf. The cheeks bounced and jiggled from every slight move that the frantic stud made, sending bolts of electric pleasure straight to his cumming cock. Even his thighs packed on a little meat to accommodate the increased weight at his backside, growing closer together as they constantly rubbed against one another, forcing his tiny cock out front and center.

His butt grew so large that his fingers were forced out of his hole, not able to reach, and the growing sexual tension-fueled pressure inside of him grew to obscene levels, making Viktor desperate to feel stuffed again.

“Uuughhh!” Viktor shrieked as he blew his final load, left spent and gasping for breath as he rested a hand against the wall. His mind tried to piece everything together, but all he could seem to really focus on was the unsettling feeling of emptiness that his giant bubblebutt felt.

“It worked!” Ethan victoriously cried, eying the microdicked, bottomheavy stud with a devious glance.

With a loud gasp, Viktor was finally able to recompose himself, his mind filling with panic over his mysterious transformation. He mobbed past the smaller man, rushing down the hallway. His gait resembled more of a waddle with his thickened thighs, and as he moved, the stud winced as he felt his massive, new cheeks bounce and roll over each other. What was even more alarming was how each movement of his massive ass sent shockwaves of pleasure straight to his small cock, which was still rock hard.

“Fuck!” Viktor shouted when he confronted his new form in the bathroom mirror.

His ass wasn’t just big, it was enormous! Viktor’s face was stark white as he examined his new physique. His butt had inflated to such large proportions that he could see the sides of his rounded cheeks from the front. His muscled torso kept its same size and shape, his massive pecs looming over a trimmed waist that then widened out to a giant pair of cheeks that were about the size of beach balls. No matter how impressive his pecs were, no matter how cute his smile was, and no matter how round his biceps were, Viktor knew that his giant bubblebutt would now forever be the focus of his body. As he turned to and fro to examine his new body, his huge ass bounce and jiggled, seemingly in constant movement.

The former alpha frowned when he saw the tiny one inch nub that his cock had become. It was still rock hard, but it was barely noticeable at its new size. Out of instinct, Viktor reached down and grabbed it, only able to hold it with his thumb and index due to how small it had become. It was embarrassingly tiny.

“What’s wrong, Stud?” Ethan asked as he walked up to him, enjoying how the larger man shuddered when he ran an admiring hand over his cresting ass.

“What— how— why?” Viktor sputtered as he tried to piece together what had happened to him. He knew for a fact that no one would ever look at him the same, that he’d immediately lost his alpha status thanks to the small cock he now possessed.

“You just helped with a scientific breakthrough,” Ethan told the bottomheavy hunk. “We were developing a supplement to see if we could turn the biggest, manliest jock into a musclebutt slut.”

Viktor’s eyes widened at what he heard. “Wh-what?”

“Just think about it: you are Exhibit A now. You’re proof that the straightest alpha male can be turned into a needy bottom who is built to bring pleasure to other men. That massive booty of yours is the perfect cushion for an alpha male to dominate, and that tiny cock of yours will make sure that all of your pleasure receptors are in that big butt now. See? You’re now the perfect bottom!”

Viktor’s pecs heaved as he tried to process what he’d just learned. Not only had his cock shrank and his butt inflated, but apparently the drug had also turned him into a needy bottom slut.

The jock looked over at the nerd beside him, the air in his throat drying up. Despite his panic, Viktor couldn’t help but notice how cute Ethan looked with his soft brown hair and little dimples. He felt a slight pressure in his crotch and looked downward, expecting to be hard. His little one inch cocklet looked unchanged, yet when he reached down and felt it, Viktor paled when he realized that he was in fact rock hard. He was just too small to notice.

But the throbbing in his tiny cock paled in comparison to the deep hunger that he felt in his inflated butt. The jock shuffled his feet with want, every shift and ripple from his booty making his nub throb even more. An intense itch formed deep within his inflated ass, and it grew with such fervor that he could barely think about anything else.

“What is it?” Ethan smirked, noting Viktor’s pained expression.

Viktor’s face burned bright red, and before he registered it, he heard himself blurt out, “I need you to fuck my slutty butt!”

“Well, go ahead and get to the bedroom then,” Ethan hummed.

On cue, Viktor hurried out of the bathroom towards Ethan’s room. His face was bright red due to the nonstop jiggling from his big butt and the absent sensations from his crotch, but his desire to get stuffed overtook it all.

The jock threw himself onto the bed on all fours, arcing his back and shoving his bubblebutt towards the nerd.

Viktor let out a low bellow as the other man entered him, moaning as he began to pick up speed. His inflated butt rippled as he thrusted himself back, sending massive shockwaves of pleasure throughout him, making his bulky muscles twitch. The entire time, his tiny cock uselessly sputtered out an embarrassingly small amount of cum.

His massive bubblebutt elicited nothing but pleasure, and before long, Viktor basked in the glow that getting fucked by the other man gave him. He couldn’t stop the slutty moans from escaping his lips, and the jock shoved his face down into the pillow as he flexed his cheeks, eagerly milking the nerd’s cock.

Ethan tensed up and came; and as he was filled, Viktor’s eyes nearly rolled to the back of his head. He struggled to catch his breath as his entire body tingled, feeling electrified.

Steadily, as the sex-driven fog cleared from his frazzled mind, the shock of his transformation settled in.

“Ohhh, you can’t leave me like this!” Viktor begged, pawing at his pathetic nub and wiggling his hips, his massive butt jiggling wildly.

“Don’t worry, Vik,” Ethan cooed, “the supplement should’ve made it so that you’ll love living your new life as musclebutt.” To prove his point, he roughly swatted the jock’s enormous cheeks.

“Ooh!” Viktor squeaked as his microdick spat out a meager amount of cum.

-- -- --

“Ready?” Ethan asked, dressed up in a suit that made the normally geeky young man look handsome. He peeked behind the curtain, marveling at the large crowd of people from the scientific community who attended the symposium.

Viktor swallowed loudly as he shuffled his feet nervously, his tiny nub throbbing as he examined his roommate in his black suit. “Um, I guess so,” he muttered unconvincingly.

The smaller man mock frowned. “What’s wrong, Big Guy?” he asked, placing a sympathetic hand on Viktor’s broad shoulder.

The former college jock blushed as he stared at the mirror that was placed backstage. Instead of wearing a suit like the nerd, Viktor had been instructed to wear his jockstrap… and nothing else. The usual cocky stud used to have absolutely zero problem with showing off his muscled body, and he could vividly recall peacocking in the gym with his massive chest muscles on full display for all to gawk at. However, now he felt incredibly exposed and humiliated.

His enormous bubblebutt protruded out the back of the jockstrap, being lifted slightly by the constricting straps. Instead of looking confident, the jock looked hesitant to parade around with his beach ball sized rear shifting and bouncing behind him. Still, no other pair of pants would fit him, leaving him wearing next to nothing and just letting his big booty be on full display wherever he waddled. Worse was that the front pouch was loose and baggy, illustrating how much the hunk was lacking.

“Um, n-nothing,” Viktor relented. It’d been three weeks since his transformation, and although he was still horrified over being turned into a slutty, microdicked power bottom— he was still incredibly turned on. Night after night, Ethan or one of his old teammates from the baseball team would take turns fucking him. Although he’d hated having such a big booty at first, Viktor’s massive cheeks brought the jock nothing but pleasure, and he even began to look forward to getting fucked, eagerly awaiting the next time a thick cock would be deep inside of him.

Even now, his little nub was rock hard and barely even tenting out the front of his jockstrap, just from noting how cute Ethan looked in his suit. That familiar needy sensation formed in his ass, and Viktor wondered if they had time to squeeze in a quicky before Ethan needed to go onstage.

Ethan checked his watch. “Whelp, it’s time for me to go out,” he said. “I’ll call you out in a sec.” He playfully swatted Viktor’s bubblebutt.

“Ooohhh!” Viktor moaned, shooting a meager load into his jockstrap. It was nothing like what it used to be, but the stud still panted as he tried to catch his breath, feeling tingles on his inflated butt from where the other man had touched it.

The crowd erupted into applause as Ethan walked up to the podium. After tapping the microphone, he began to speak:

“Good evening esteemed members of the science community. For years, us nerds and small tops have been typecasted as bottoms. But no more. Gentlemen, I am here today to declare that we have successfully created a new supplement one-hundred percent guaranteed to turn the biggest, most cocky alpha male into the neediest buttslut around. May I present, Exhibit A!”

That was Viktor’s cue.

After taking a deep breath, Viktor waddled out onto the stage.

The crowd erupted into loud cheers and awed gasps as the bottomheavy stud waddled out towards the podium. The whole time, Viktor’s face burned with humiliation and he felt as if he’d burst into flames at any second; however, his little cocklet throbbed with intense want as he moved. His massive bubblebutt shifted and jiggled behind him, many of the men in the crowd whistling at him in a catcalling manner.

Ethan smiled warmly at the altered jock and then continued. “Our new supplement will increase the libido of the male, as well as the size and sensitivity of his glutes. It also programs him to respond sexually to any male stimuli. And in order to solidify his status as a bottom, it will cause the phallus to reduce in size by upwards to ninety percent.” He turned to Viktor. “Exhibit A, if you may.”

Viktor’s face looking like a tomato, the jock hooked his thumbs into the straps of the jockstrap and tugged it downward.

The crowd marveled at the jock’s one inch microdick, and despite how humiliated he was, a bead of precum was already starting to ooze out Viktor’s nub.

Viktor glanced out over the crowd, realizing that everyone in attendance was male. Immediately, his nub throbbed even more and he couldn’t help but flex his massive butt with want. He was embarrassed and wanted nothing more than to hide somewhere off stage, but another part of him instantly began to fantasize about getting his big butt stuffed full of cock after cock— from every guy in the audience. He was so caught up in his horny daze that it took the jock a moment to realize that he’d been massaging his inflated cheeks with both hands, unable to stop even when he became aware.

“And for those of you who are more chest guys, we have been trying to develop a supplement to suit your needs. Exhibit A was given a dose this morning with his morning coffee,” Ethan explained.

Viktor jerked back in shock at what he’d heard. “Wait, what— uughhh!”

Vitkor spasmed and felt as if his chest were on fire, like he’d just finished an intense chest day at the gym. His nipples tingled, and then the bottomheavy jock’s jaw dropped as he watched his pecs begin to inflate and round out. The muscled mounds grew outwards from his chest, obstructing his view of anything below them. His nipples even increased in size, inflating into large nubs that stuck off his muscletits tantalizingly, looking more like thumbs.

“Oooohhh!” Viktor squealed as he came, his cocklet shooting out a tiny amount of cum for the entire audience to witness. The now curvy stud paled as he poked and prodded at his muscletits, embarrassed to find that his enlarged chest also elicited the same pleasurable sensations as his massive ass.

The crowd once again cheered as they admired the curvy jock with large pecs that protruded off his chest like a shelf, nearly swallowing his neck; and an even bigger butt.

Viktor knew that the college jock with the proportional body that women lusted over, was gone. And in his place was a curvy, microdicked powerbottom who begged for cock on the daily. He paled at mental images of himself strutting around the gym with a massive butt and humongous pecs… but then he thought about all of the handsome jocks on his baseball team. A lot of them had large muscles as well, and even larger cocks.

Viktor’s nub throbbed again as it hardened, and the stud couldn’t help but reach up and toy with an inflated nipple.

“Do you have anything to say, Viktor?” Ethan asked him, a smirk on his face.

Viktor’s brain was taken over with his horny daze, and despite himself, the former jock dropped onto all fours and wagged his bubblebutt towards the nerd. He even noted how his muscletits squished together as he rested on his hands, having to reposition his arms around their exaggerated size.

“Just please fuck me!” Viktor begged, his deep voice cracking by the surge of lust that took over his body. The stud let out a low, bellowing moan as Ethan slid himself inside of his tight hole, almost loving how many other guys were watching the whole ordeal.

His massive booty jiggling and his enlarged pecs bouncing with every thrust, the moaning Viktor basked in the immense pleasure that washed over him in tidal waves. Sure a small part of him was horrified over what he’d become, but a louder part loved every second of it— getting fucked every day and having his body built for nothing but the upmost sexual pleasure.

Viktor loved his massive booty and enormous pecs (and even his little cock), and he knew deep down that he’d need to convince other guys on the baseball team to take part in the drug trials.

But he’d need to have them fuck him before their cocks shrink, of course.


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