As an Instagram influencer (and a fitness one at that), Kaylee was no stranger to free stuff. Every week now she would get a new, fancy box packed with pricey protein powders and strange new supplements. She would take pretty pictures with the bottles, dressed in her best workout clothes. Then, once she was done, she would throw everything away. Don’t be ridiculous; who knew what kind of crazy, non-FDA approved shit these companies were selling to unsuspecting teenage girls? Kaylee cared more about her body than anything else. When it came to free stuff, she wasn’t taking risks.
And this wasn’t a risk... or so she thought. All she would do would put a little protein powder in her mouth and blow it towards the camera like fresh snow. Christmas was around the corner after all. It would be a fun, festive way to show off “Instant Muscles” or whatever the fuck this one was called. As long as she washed her mouth out afterwards, she didn’t have to *actually consume any of it. It was a win-win.
But Kaylee could tell within a second of blowing that the video was a mistake. Instantly, the white powder filled her nostrils and burned her tongue. Kaylee was overcome with the most pungently masculine scent she had ever encountered. The supplement smelled of chopped wood and leather, it tasted of BBQ ribs and strong listerine. She wanted to cough, but instead of tickling her throat, the powder seemed to just melt away, leaving a completely foreign taste in her mouth.
It all happened very fast after that. If Kaylee had bothered to actually read the packaging, she would have known that the powder was supposed to be taken in extremely small, infrequent doses. Consuming such a high dosage so directly meant the changes were almost instantaneous. Kaylee exploded out in all directions, her muscles erupting with growth and forcing the cute new top she bought last week to tear and dig into her skin. Where two, grade-A tits once hung, now jutted out a pair of hysterically large pecs, the soft, squishy tissue replaced with solid titanium muscle. Her toned arms grew five times as thick, becoming roughly the size of her old legs. This was to say nothing of her legs, which now added an extra six inches to her overall height.
But the biggest change—of course—was the one the camera couldn’t pick up: the change between her legs. Kaylee felt a surge of arousal as her pussy seemed to swell up against her gym sweats. But the swelling was so immense, and the sensation so alien. Only when Kaylee looked down at her new body for the first time did she realize that her entire anatomy had changed. In just one second, a her vagina had transformed into a penis (and a large one, judging by the size-able mound in the skin-tight fabric). In just one second, Kaylee became Kyle.
He didn’t know what to feel at first. The horny fog was so thick that his initial instinct was to just stand and admire his new form. He was a beast. Kyle had become exactly the kind of football hunk that he used to fuck at frat parties in college. He looked into the camera gave his new muscles a flex, savoring the feeling of them tightening and hardening all over his body. Pretty soon, the muscles weren’t the only thing that was hard. As Kyle flexed, he fantasized. He saw himself dominating some squealing sorority girl, squeezing her tits and relentlessly pounding her tight pussy until she was squirting all over his d—
Hold up, Kyle thought, I don’t want any of that! I’m not a guy... I’m a girl! But the testosterone flooding his bloodstream said otherwise. Whether Kyle liked it or not, he was no longer a sexy, savvy influencer chick, but a huge, horny frat dude who loved nothing more than a good pump and a tight little ass.
Kaylee’s transformation into Kyle was so intense that within thirty seconds of (inadvertently) consuming the powder, he had already soaked his gym sweats with cum. Only they weren’t really “his” sweats anymore. Kyle wouldn’t be caught dead in something this small; basketball shorts and tank tops were more his jam. As he stripped down to get into something a little more comfortable, Kyle remembered the video he’d just been making, and the responsibility he had to sell these supplements.
But Kyle wasn’t too worried. Because even though he looked, talked, and fucked different, deep down he was still that same instagram influencer, and he was going to sell the hell out of this “Instant Muscle” shit. After all, who wouldn’t want to become a towering muscle freak?
