Eric tossed and turned, unable to stop thinking about his last call of the night. He'd seen a lot of weird things in his time as an EMT, but something about the naked, burly man passed out on the sidewalk had pushed the encounter to the top of the list. A tenant in one of the squat apartment buildings lining the street had called it in, saying they saw the hairy giant stumbling down the road before eventually doubling over and hitting the ground. It was a warm night with lots of windows open, and the person who called it in reported that the man was stammering something about "making it stop" and "shouldn't be so big."
By the time he and Dom arrived on the scene the man was unresponsive, face-down on the pavement. Whoever he was, he was a beast. Eric sized him up as he hopped out of the ambulance and pulled on his gloves on, figuring that his scrappy, wiry body could have fit comfortably inside the prone slab of muscle. Even Dom's brawny frame was outmatched by the man's broad shoulders, massive arms, and thick, powerful lower body, all hanging exposed in the evening air. There were tattered remains of what looked like shorts and briefs clinging to the man's thick cheeks and wide thighs, but beyond that his only covering was the dense layer of body hair that seemed to coat him from head to toe.
As they struggled to roll the dense pile of muscle over, they both gasped at the rigid forearm that sprang up from beneath the man's solid gut once they had him on his back. They'd both seen plenty of naked men in their careers, but neither of them had ever seen a dick so large, or so eager. It was the one part of the man that seemed to be responsive. As they prodded his hairy, bulging pecs and inspected the man for injuries they watched the monolithic organ start to twitch and ooze before finally erupting without warning. Dom managed to dodge the copious release, but to his partner's delight it hit Eric full in the face like a warm, sticky water balloon. He'd wiped it off immediately and they'd kept working, but within moments the man was ready to go again. They thought to cover the potent organ before the second blast, which proved a wise move when the unconscious man let out a quiet groan and blew again as they shifted him onto a stretcher. By the time they pulled up to the hospital a few minutes later he'd done it two more times.
That had been four hours ago, and Eric hadn't been able to get the experience out of his head. The image of the man's beefy, muscled bulk with its carpet of hair and fountainous cock was burned into his mind. He'd been too focused on the massive endowment to pay much attention at the time, but thinking back, Eric was struck by the memory of the man's young, baby face against his thick, furry bulk. It seemed out of place on such a rugged man, almost innocent in its youth while the rest of his body boiled with barely contained force, even unconscious.
Eric had showered as soon as he'd returned home, scrubbing his face until it was raw, but he could still feel the phantom cum clinging to his sharp cheeks and trickling into his mouth. It had an astringent, chemical flavor to it, and though he didn't have any experience to compare it to, Eric wondered if it was supposed to taste that way.
As the hours wore on, he started to wonder about a lot of new things. At twenty five he was still wiry and naturally smooth, and he tried to picture what it would be like to lumber around in a coating of fur like the man had. The curly forest spared nothing in its growth, covering the man's shelf of a chest and bowling ball shoulders before flowing south. Eric shivered and broke out in goosebumps as he absently ran a hand along his lean torso, imagining that his fingers were brushing through a silky carpet. He'd been surprised at how soft it was. He'd never given it much thought before, but as he was doing his inspection he couldn't help but note the contrast between the bushy fur and the granite, solid muscle underneath.
"Hmmmm..." Eric sighed and squirmed, wrapping a hand around his aching pole before he knew what he was doing. He jerked it away after a few reflexive pumps, not wanting to get off with a head confusingly full of naked, hairy men. He tried to shift to his usual fantasies of large breasted blondes, but within moments he'd be back to thinking about the burly man and his impossibly huge cock. He finally gave up and rolled over, eventually drifting into a frustrated slumber.
That frustration was more present than ever the following morning. Eric had woken up so hard and horny it was painful. He was desperate to the point where he didn't care what he thought about, as long as it got him off. Like the previous night his mind immediately went back to the naked, hairy hulk, but instead of lingering there it now shifted to his burly partner. Soon Eric was thinking back to the times he'd seen Dom stripped down in the locker room, his thick frame bulging out of his briefs or his bare, dark skin glistening from a recent shower.
It was all in vain. No matter how close Eric got to the edge he couldn't cross over, leaving the lean young man panting, sweaty and unsatisfied. He'd tried everything. He varied his technique and switched his positions, even resorting to humping his bed like a horny dog, but while his abs burned from his bucking hips and his arms were sore from the rapid pumping, the relief he so vigorously sought never arrived.
Through it all he kept telling himself his mind was just playing tricks on him. Whenever he'd catch himself thinking that his average cock felt different, or notice a thickening of the hair on his arms, he told himself it was just his imagination. He'd been fantasizing about what it would be like to switch places with the hairy, baby-faced stud from the night before, that's all, and the fully-body itching was just a result of the sweat from his forceful jerk session and nothing more.
That denial only lasted until his phone rang. The number was unlisted, and the calm, friendly voice on the other end was equally unfamiliar.
"I imagine you're quite frustrated by now," a man said.
"Excuse me? Who is this?" Eric asked after a surprised pause.
"You've been trying to get off for a while now, haven't you? But things aren't working quite the way you're used to, are they?"
Eric's heart started beating faster, the unease he'd been feeling since the previous night tightening around him like a noose. "How do you...who the fuck is this?"
"It must be extra frustrating for a fit, virile young man like yourself, isn't it Eric? Twenty five, a hundred and eighty pounds...an even six foot...not bad looking, either," the stranger said, rattling off a list. "Swimmer, soccer player, ladies man...with a brain to go with that body..." He kept speaking before Eric could stop him. "By now I'm sure you've put together that the man you found last night wasn't an ordinary patient. I'm also sure that someone with your intelligence has figured out that you've been exposed to something unusual. That arousal? The inability to climax? That's just the start. In a few hours you'll look like your friend from last night, and unless you want to end up the same way he did, you'll do as your told. The chemicals brewing in your system can be...volatile...if not treated in time."
