The teen musclebeast stifled his roars as he blew thick wads of spunk all over the wall tiling of the shower. Even the muffled sound of his rumbling reverberated in the small space, his hairy shoulders mashing against the cold tiles with each rhythmic jerk of his pendulous manhood, his hands roaming 15" of cock. His giant balls pulled up into his body over and over again, injecting his seed into his system, revving his engines as he pistoned his hips back and forth, pushing out cum at a fevered pace. Even as he tried to restrain his inhibitions, he couldn't guarantee that his little brother, Timmy, couldn't hear what he was doing.
Finally, after working his shaft for a solid three minutes of mind-blistering pleasure, Jamie sighed, leaning forward on his forearm, feeling the immensity of his own body. He moaned, feeling the water cascade down his gargantuan back, droplets coalescing in the grooves of his expansive lats and traps. The streams pooled the small of his back, trickling down between his bulbous, across his taint and between his balls. It was a sensation that was more than sensuous, the teen-beast's length beginning to stir once more.
Jamie groaned as he watched the water roll down his pecs, a pair of mounds that would make even the greatest bodybuilders squeal. Water caught in between the thick, blond hairs and the monstrous teen couldn't help but feel up his hairy, vacuum tight abs. His erection, once flagging, was raging back to life as his hands made their way up to his pec shelf, his man-tiddies jutting out of his ribcage so much his little brother could hide underneath them and he wouldn't be able to see the little bugger. A thick stream of pre began to flow, adding to the splashing on the floor of the shower.
"Nngh, no, gotta calm down!" Jamie murmured, the giant huffing as he takes his hands away from himself, taking his thoughts to his little brother. Jeez, what would Timmy think if he took too long inside the bathroom? Jamie forced himself to go soft, not an easy task when his cock was 15" long and thicker than a Coke can, his massive balls nestled between thighs that were thicker around than the football coach's chest. But he did it, a combination of pinching himself and thoughts of his old Aunty did the trick. With his shaft finally soft, the thick, club-like appendage slapping over halfway down to his knees, the teen musclegod steps out of the shower, thankful that the mirror had fogged over -- or else he might never be able to leave, his body in a constant state of self-arousal.
Jamie strolled out into the hallway, his hands stuck to his pelvis as he dangled a pathetic looking towel in front of him, the cloth too small to ever get around his muscled, hairy bubble-butt. Timmy, fully dressed thankfully, stood at the entrance of his room, his eyes going wide as saucers as he takes in the sheer size of his BIG brother. The kid took his right arm and flexed his biceps, an expectant look on his face. Jamie sighed and carefully positioned his left hand over his prodigious crotch and raised his own right arm to copy the pose. "Grr," the freaked-up teen caught himself growling, causing the veins in his mammoth-sized arm to dance. Timmy raised both his hands and whooped. Jamie just shook his head as he sauntered into his own room, closing the door behind himself.
Tossing the towel into a hamper, Jamie gingerly forced his way back into the one pair of shorts that 'fit' him still. Even without a mirror to check himself in, he knew his bulge looked obscene. No matter how he adjusted it, he looked painfully cramped in. If he pushed his length to the side, the head of his member splayed out of the pant-leg, if he stuffed his cock and balls into the crotch area, dense pubes and the top of his thick cock protruded from the band. There was just no way for him to be decent!
"God, what am I gonna do for clothes?" Jamie whimpered. Panic began to set in. He had the body he had always dreamed of -- he was huge beyond belief, the biggest, thickest cock in the world was nestled between twin redwood thighs and yet here he was, a walking public decency violation! "Maybe if I call Charlie, he might be able to get some clothes for me."
In truth, Jamie thought that maybe he could show Charlie a little more than what he looked like in new clothes. The massive beast shook his head. He knew it was just a shot in the dark, after all, the hot jock already had a girlfriend...
He sighs as he picked up his phone and dialed his former-nerd-to-jock friend. "Ungh, what the f- uh, oh... Hey, Jamie, what's up?" From the sounds of it, Jamie had interrupted Charlie at a rather inopportune time. Jamie hears the jock on the other end cough and the sound of a zipper, Charlie walking to somewhere more private.
"So, did you take it?" Charlie grunted, excitement in his voice.
"Uh, yeah," Jamie coughed, the teen-beast looking over his overly-enhanced body. He spoke quietly, raising his voice in pitch, causing it to crack.
"Shit, fuck yeah, dude! How are you feeling, better I bet," Charlie chuckled. "Aw dude, you're gonna love it. The first change is a bit of a rush, but everyday, you're gonna feel it. Little by little the old you's gonna disappear and in about a month, you're gonna look like me, a total stud!" Jamie couldn't help but bone up a little at how Charlie said 'stud,' his imagination going to work of the jock saying it to his face as he went down on him.
"A w-whole month, you say?" Jamie blurted, slightly taken aback, his eyes fluttering in disbelief. His body was going to continue to change for an entire month?! If he looked like this after his first growth spurt... everyday he'd be growing... His head started to spin as realization set in.
"Aw, c'mon, man! Lighten up," Charlie chided, "The process is slow after the first day, but fuck, is it ever worth it. Usually you'll feel bigger every morning, but sometimes," Charlie got in real close and hushed his voice, "I felt myself growing in the middle of class, fuckin' A, almost busted my nuts in Chemistry, hehe. Y'know, since you're gonna be one of us, I'll get word out to Coach to leave a spot open on the team."
"Uh yeah, thanks," Jamie replied, "Ahem, yeah, uh, by the way, think you could swing by, or something, I'm kinda gonna need some new clothes-"
"Say no more, bro," Charlie said, cutting Jamie off, not realizing that the male-dominance hierarchy at Summer Bay was about to be turned on its head. "Be over in 10." Before Charlie could hang up, a high-pitched voice called to the jock. "Ah, uh, sorry, bro. Make it an hour!"
Jamie rolled his eyes and hung up himself. The giant laid down on his bed, feeling the springs and bedframe groan in protest to his overwhelming weight. Jeez, what to do for an hour?
His body had the answer to that.
Beads of sweat began to form on his brow, the teen-titan suddenly felt a flash of heat wash over him. His whole body tensed up, every fibre of his being feeling like it was being torn apart... and then made anew. Jamie snarled as he felt a growth spurt coming. Giant hands dug into the sides of his bed as he thrusted upwards, his humongous thighs ripping straight through the fabric of his shorts with ease, his cock and balls flying out of the remains.
Jamie clenched his jaws as he felt his neck thicken, pressure pushing into his Adam's apple as cords of muscle grew around it, his deep gruntings getting even deeper and more guttural. His shoulder billowed outwards, his hairy delts pushing further apart, the light dusting of blond hair becoming a dense forest. Hairs erupted in the cleft of his chest, his pecs pushing out even further, causing his inflamed nipples to point downward.
Jamie couldn't handle it anymore. He let loose a deep, sonorous roar as his arms exploded with size, veins with the circumference of a quarter etching riverways of blood along the surface of his power-bloated muscles. Jamie's abs distend slightly outwards, the muscle piling on at an incredible pace. Instead of detracting from his incredible v-taper, it only served to further accentuate what Jamie was becoming -- the very embodiment of masculinity.
"Oh, fuuu-" Jamie howled, cutting himself off, a vain attempt to spare his brother down the hall the indecency. His bones creaked and cracked as they lengthened, the growing pains more intense than he had ever experienced.
Last but not least, Jamie's endowment blossomed. The freakishly large, grapefruit-sized nuts ballooned outwards, slowly expanding to the size of bowling balls used by kids and seniors. Those nuts went to work, creating more testosterone and sperm, clouding Jamie's mind, the teen losing control over his lust. 'Breed, conquer, take...' The biggest freak on the planet!
Jamie roared, screaming his primal triumph, feeling the tip of his cockhead spurting a giant glob of pre-seed between his hairy, massive pecs. Everything about him was giant. He'd put on another 3" to his frame, the giant now a towering 6'9". His physique had morphed to beyond the point of what any bodybuilder could hope -- every muscle on his body a few inches bigger than they should be. His balls were enormous, his hormones on the brink of out of control. His cock, once a magnificent 15", now stuck out 17", the girth akin to a wine bottle. The great beast brought his massive hands to the tip of his cock and let out a low, bass-laden moan.
"Whoa," Timmy whimpered, the kid standing in Jamie's room's doorway. The storm of emotions inside Jamie's head quieted and the freakishly large behemoth thought straight for the first time after his latest growth spurt.
"T-Timmy, don't look at it... er, me," Jamie grunted. The monster of a big brother covered his penis with his blanket, but it was no use trying to hide something that big.
"Whoa, it got bigger!" Timmy exclaimed. "And your muscles are huge, you make Josh's dad look tiny!"
The comparison, Jamie knew there was none. No one came close to what he had become, what he was becoming. And that made him hornier beyond anything he had experienced before.
"Timmy... l-leave," Jamie whimpered, the need starting to overwhelm him, his eyes beginning to glaze over with lust.