Mike sipped his beer as he vaguely watched the game, his mind deep in it's own thoughts as his eyes barely followed what was happening on screen. Mike had wanted to come out to his son since Jeff's mother left them two years back, when he told her he was into men. Mike had been suppressing his true sexuality since he was a teenager, denying his wants and needs until he couldn't take it anymore. Mike felt terrible about how things ended with Jeff's mother, and how years of suppressing his true self had set a rift between him and Jeff. Mike was a bit nervous, he loved his son and he really wanted Jeff's acceptance.
For years Mike had secretly bought gay porn magazines, before finally finding porn sites online. Over the years Mike had joined several fetish sites and chat rooms, his suppressed sexual nature coming out all at once. Over the past five years Mike's kinks and fetishes began to build up, he found he really enjoyed pupplay. The thought of a cute guy becoming a happy, horny, cock-sucking pet really turned him on. But Mike's kinks began to evolve. His petplay fetish evolved over the past few months. He didn't just want a guy to pretend to be a pup, he wanted them to become a pup. He fantasized about men shifting and changing into the perfect hybrid of man and beast, A Dog-Man, or Dog-Boy, the perfect pet. The very thought caused his dick to twitch. Mike also fantasized about himself changing, of becoming an Adonis of a man, with stereo-typically masculine hobbies, such as riding a motorcycle, martial arts, and so on. He had found himself jerking off just last night to the idea of being a big, burly biker with a horny pup worshiping his cock and body. A few times in this fantasy, he's ashamed to say, he saw Jeff as the pup. Mike tried to push that thought out of his mind, but for some reason it was hard for him not to at the moment.
Mike began to feel hot, his middle aged body starting to glisten with sweat. He tried focusing on the game, but the screen was a blur. Mike rubbed his eyes, as the hair on his head started to change without his notice. It became thicker, and more lustrous, his dark black hair getting more grey at the front, as well as at his temples. Mike sighed and leaned back against the couch, closing his eyes.
"I need to calm down, this is just nerves. You're nervous Mike, it's fine. You can do this, you can come out to your.....to your...." Mike's head became dizzy as his facial hair began to fill out, becoming a full, trimmed beard. Dark, curly hair with streaks of grey across his shifting jawline. Mike's facial features were becoming sharp, masculine features, as if testosterone alone had cut him from stone. Mike kept his eyes shut, taking in deep breaths as he felt a tightness in his chest, still thinking it was nerves as he felt his heart race. His chest began to swell, shifting and changing, becoming a massive pec shelf. Two perfectly muscular globes of meat stretching out and nearly tearing his red T-shirt. His chest looked almost cartoon-ish on the rest of his body. Mike's mind became dizzier and dizzier as his brain began to let the haze of his deepest fantasies come forward. Him as a big, muscular man, with a Dog-boy between his legs. A large, cocky smirk began to cross Mike's new, chiseled face. Mike reached a hand down his brown cargo pants and inside is boxers. His hand gripping his already stiffening cock.
Mike groaned and grunted as he began to jerk off, all the while his body changing without his notice. Mikes arms began to swell, growing larger in muscle, growing thick and beefy until they looked like the arms of a professional body builder. His shirt began to change, it melting like latex, the red turning into black before the fibers spread and realigned across his torso, becoming a large, leather harness that crossed his chest in an X pattern, that showed off his massive pecs even more. The rest of the fibers of the former shirt came into place and formed a tight leather jacket around his shoulders, the short sleeves barely fitting around his massive arms. Mike let out a loud moan, his voice becoming much deeper and manly as he continued to stroke and pump his cock, his hands now huge, making his naturally 8 inch meat small in compression.
"FUCK.....!" Is all Mike could grunt as he continued to imagine a hot and eager Dog-Boy's mouth around his cock. As he continued to stroke his cock, his stomach churned and bubbled, his muscles stretching and swelling into a mighty 10 pack. His abs becoming thick slabs of cut muscle. The changes extended to his legs, as they became larger and longer, his whole body gaining height. Mike's thighs swelled, his calves grew, nearly bursting from his tight skin, his legs now matching his arms and torso.
Mike began to stroke his cock furiously, letting out a deep, rumbling moan as his cock began to grow. His 8 inch circumcised meat regrew it's sensitive foreskin, as the shaft began to swell and grow. His member throbbed harshly, he could feel his heart beat within it. As Mike continued to fantasize, suddenly the face of the Dog-Boy shifted, becoming a Dog-Boy version of Jeff. Mike winced a little, he tried to push it back, he knew it was wrong to fantasize this! But, as he continued to stroke his now fully erect, 12.5 inch long, beer can thick cock he knew his fantasy was a reality. Mike's ass began to swell and inflate, growing larger and larger, each cheek becoming a massive globe of muscle perfection. He was a muscular Adonis of a man. Jeffy wasn't his son, Jeffy was his pet. His happy, horny, loyal, cock sucker of a pet!
As those thoughts became Mike's memories his body and cloths went through the final changes. As years of Mike's life rearranged in his mind, he was no longer an accountant, he was now the leader of a notorious, gay biker gang! He owned a biker bar, and two gay nightclubs downtown! Mike's skin began to darken, becoming a sexy, sun-kissed tan. A nice pelt of black and grey hair began to spread across his pecs and abs, just enough to where you could still see them underneath the hair. Hair spread across his legs and arms, his nipples became, thick chew-able wads, perfect for a Dog-Boy to suckle on. His nipples became pierced, and a large P.A. appeared on the purple mushroom head of his member. A dog whistle appeared around Mike's thick neck, as his boxers and cargo pants shifted and changed. His blue boxer became a tight, white jockstrap that was barely hanging off his newly goose egg sized, fuzzy balls. His brown cargo pants became a tight pair of leather pants and Mike's tennis shoes turned into massive size 18 black boots, containing his new gigantic feet! Mike opened up his eyes and stopped stroking his cock, having edged himself near completion.
"I shouldn't let my pup's favorite treat go to waste...." Mike said with a massive smirk as he stood up to his new 7''4 form. Mike grabbed the tiny dog whistle from around his neck giving it a sharp blow before calling out. "Here Jeffy! Here boy! Daddy's got a treat for his favorite little cock sucker!"