A couple young studs enter the steam room, and it's all Mark can do to keep from popping a full on boner. He grabs his towel and exits. Maybe a cold shower? he thinks. The towel around his waist is now noticeably tented. He dashes into the shower room before anyone can notice, he hopes. He finds himself facing the corner and trying to concentrate on baseball stats. Unfortunately, all the players that he thinks of begin exotically doing strip teases in his mind. First goes the jersey, then the shoes. Soon they're dancing only in their jockstraps and batting helmets.
Mark's eyes open as his hand his hands rise from his lathered cock to lather his chest and they get tangled in a thick thatch of chest hair. Five minutes ago, Mark's chest had been as smooth as a Ken doll's. He'd wiped trickles of sweat off in the steam room. Now it was hairy. Mark looked down his whole body was hairy. He rinsed off, and hurriedly dried himself and headed for his locker.
He crinkled his nose. He smelled like a wet dog. How could he smell muskier and sweatier after a shower than he had in the steam room? He shook his head and climbed over the bench to his locker. There was a naked young man sitting on the bench putting on his gym socks when Mark arrived. Dave's eyes glazed over as the pungent odor emanating from Mark overpowered his mind. He sat there with his sock half on, while Mark fumbled with his lock.
Mark turns and forgetting his growing hard-on whacks Dave in the chops.
"Whoa sorry, man! It didn't use to be this big," Mark said lamely looking at his 12 inch hard cock. Then he looked down at Dave whose mouth was hanging open, and his eyes looking up like a puppy begging for a bone.
Mark stutters for a second, "Uh, yeah, uh, f-f-uck, you want to suck me?"
Dave nods slowly but emphatically like in a dream.
Mark grins, and says, "Go for it!" As Dave sucks like a vacuum, Mark chuckles looking down at the tanned young body working his cock, "I always wanted a puppy, now I got me a cock hound."
As Mark says this, he notices that the tanlines on Dave are fading, and he is now tanned all over. A black rubber tip emerges from Dave's spreading butt cheeks. In about thirty seconds a rubber 12" dog tail has emerged from Dave's butt and and is wagging wildly. Mark knows it must be attached to a dildo or butt plug.
After Mark cums, Dave sits back on his haunches licking the excess cum from his face. Mark is amazed to see a studded black collar around Dave's neck with a dog tag emblazoned with the words "Dave Mathers PROPERTY OF MARK STRONG" and then Mark's phone number appears underneath that. Dave is now totally hairless from the neck down, and sports a single silver earring with a silver dog bone dangling from it.
Mark quickly dresses, and Dave silently begs for Mark's jockstrap. He sniffs it deeply and then puts it on. Dave then dresses in his street clothes, and silently follows Mark out to his car. Mark keeps adjusting his clothing, it all seems too tight. His ankles are showing at the cuffs of his slacks. It's like he's not only grown hairy, but grown bigger too. This is confirmed when Mark is forced to slide his car seat back to the farthest setting. A leash has a appeared dangling from Dave's collar. Dave sits in the passenger seat with his hands folded in his lap. Mark reaches over and pulls the safety belt across Dave strapping his hands under the belt.
Mark's cock is now straining against his jeans. He races home with his new dog slave. He is obsessed with Dave. The full moon rising is visible as he pulls out of the parking lot.