CLICK.

The door shut and locked itself behind the muscular bull. He heaved a huge sigh of relief as he stowed away the key, a gift of a particularly handsome cervine barista at the gym’s café. It was already pretty late in the evening and it had shut down until morning.

Given the urgency of the situation, privacy was necessary. While the gym itself catered to its patrons with a wide variety of healthy (and growth-inducing) snacks, they were meant to be more gradual in nature. For whatever reason, Insom happened to scarf a recalled Banana Boost bar out of the vending machine just a few hours prior.

While a mild bit of growth always felt good during a strenuous workout, it wasn’t until around 10 PM when Insom started to notice things were a bit off. Halfway through his reps he realized that his bulge was a bit more massive than his shorts could usually tolerate, but he had shrugged it off as a mistake. After finally putting the weights aside and wiping down the machine, he simply assumed that maybe his shorts had just shrunk in the wash.

It wasn’t until he was halfway to the locker room where his shorts gave way in their entirety, showing off his ruddy brown balls off to the empty hallway. The breeze was quite comforting upon his then watermelon-sized sack as it swung between his knees, at least three times larger than before. His flaccid shaft slung over it as well, a full 14 inches of meat as thick as a baseball bat, eager to greet any passersby.

Insom, however, was of a differing opinion. Thankfully he was able to grab his ruined clothes and get his grey-furred hide into the café before anyone caught a glimpse of him. It was one thing to be brazen about showing off your assets, but at this particular gym it was only relegated to certain days and hours, to accommodate the more hyper-endowed members. Violations otherwise could be quite costly.

Still, the Banana Boost bar was working overtime on the poor bull. It must have gotten additional ingredients from other products mixed in, with the way it helped boost the poor bull’s height and muscles. He already had some tone on him throughout his body, but the simple snack started making him look far more defined, as if he had spent a few years sculpting his body to a fine, muscular build. Hi schest strained his shirt so until it ripped all over, and the additional height that poured onto his originally 6’ frame helped him loom toward the ceiling. By the time Insom’s body had absorbed all those nutrients, he was standing a shade over 7’ tall, easily a “must-pick” for any basketball team around.

To his shocked, however, Insom’s package swelled to the point where he had to park his naked backside along one of the benches. His testicles had already blossomed outward, hanging so low they sagged down below his knees and yet rocked with rich cream. His shaft, seemingly having taken on a mind of its own, started to grow all the more erect with each passing second.

Each throb gave the bovine’s cock a few extra inches, and angled it all the more towards Insom’s six-pack. It twitched restlessly as it eked its way upwards, the very tip dripping with droplets of rich precum that could easily quench one’s thirst. As it barreled up into the air, the rim of his tip just brushing upon his lips, Insom knew there was only one way to help stop the growth.

Surprisingly, Insom found his head to be tastier than he first thought. As copious sloshes of pre graced his tongue and danced down his throat, he could have sworn it carried some of the sweetness of his improperly-crafted snack. Still, Insom’s flow was nothing but relentless, and each pull and tug along his dick just urged him onward.

Every touch and rub along his shaft made him feel like a teenager again, stroking himself for the first time. His foreskin was so tender he had to slow down his groping at times, finding himself riding along edges so sudden that he could have sworn he lost track of time itself. Still, after letting his body rest for a minute or so each time, the curious bull was all the more eager to pull his shaft right back into his mouth for another thorough sucking.

The tufts of rich, silken fur along his forearms worked perfectly for rubbing along his thighs and nuts, coaxing them to increase their production. Insom’s sack slapped heavily along the bench cushions, drenching them in all of the additional precum he just couldn’t drink fast enough, as the excess slid down his entire front and down to his nethers. 

It wasn’t much longer until the bull finally couldn’t take the pleasure any longer, feeling his legs stretch out just as his load started to shoot enthusiastically inside his maw. The first few blasts of ropey delight painted his mouth and tongue with ease, but the excited rush of jizz was far too much that he could drink in time. With a quick jerk he could feel his massive spear slip right out from between his lips, starting to spray his bounty all over the room. It splattered down heavily upon his body, as if he had set off the fire alarms.

As the poor bull bathed himself in his own batter, he did a fine job of coating four of the nearby tables and chairs as well. By the time his throbbing had subsided and found himself finally at ease, all that was left was a messy bovine, along with a wealth of creamy destruction that would take an hour or two to thoroughly clean in full.

Basking in the afterglow, Insom thought to himself. When he finally had enough post-exercise and post-coital strength to look at his handiwork, he nearly gasped. Despite all of his hard-fought efforts and his auto-fellatio prowess, his family jewels had only shrunk back down to the size of medicine balls, laying softly on top of his legs and nearly down to the bottom of his thighs. So much for the basketballs he used to house in his sack instead of those behemoths.

However, it wasn’t necessarily the worst thing. A little bit of extra muscle and growth was always a good thing. The only problems that remained was cleaning up and getting back to the locker room without being covered in his own juices. Thankfully, a lovely tryst between him and the barista in the stockroom taught him long ago that there were cleaning supplies, a bucket, and a slop sink that he could use to bring himself and the café back to its previously-pristine nature.

That and, if he could get it all cleaned within two hours, there should be just enough time to be able to slip out during the 1 – 3 AM hyper period. So long as everyone else was in the buff he could move around freely as well.

As Insom lifted up his arm and flexed his newfound muscles in his bicep, he couldn’t help but grin. After all, it wasn’t as if he was going to write any complaints to the gym about selling recalled Banana Bars. In fact, since he didn’t have class the next day and was still wide-awake, he pondered about whether or not any of the remaining bars in that particular machine were equally “tainted,” and if he had enough change to find out.