David sat down on the bed and watched as Bobby pounded Erick hard and fast, Bobby's tongue lolling out to one side. "Haha, glad you're enjoying yourself over there Bobby.. but dog on dog action doesn't do much for me. Im more for guy on guy." David smiled. Bobby cock changed from dog to human, his knot slowly disappearing. He withdrew long enough for the changes to effect him and Erick, making them both completely human, Erick on his hands and knees in front of Bobby. He quickly shoved his hard cock into Erick's ass, continuing his relentless fucking.
"AHH! SHIT!! GET OFF OF ME DUDE!! THIS IS DISGUSTING!!" Erick screamed as Bobby impaled him. He tried to crawl away from Bobby's pumping cock, but Bobby held him firmly in place.
"Oh, what's the matter Erick? Don't like homosexual sex?" David cooed.
"Shit no I dont! GET OFF ME MAN!!" Erick yelled.
"Uhnn, ohh, shit.. I can't man, you feel so gooood." Bobby moaned.
"I can fix that," David whispered. "You are a homosexual now Erick."
"NOOOOooooooo.... oh man Bobby, your cock is so big. Fuck me man" Erick moaned as the changes took him over. He started to enjoy what was happening to him. Bobby continued to hump Erick, their moans becoming one sound as Erick grinded his hips back as Bobby humped forward.
"Yea, that's more like it" David said to himself and slipped his hand down into his pants. He rubbed himself gently as he watched Bobby and Erick go at it. Finally, Bobby let out a long sigh as he thrust into Erick hard one last time. David could tell Bobby was spewing into Erick, and began to run his hand up and down his own stiff cock.
"Shit guys, that was hot." David said, as Bobby withdrew his softening cock from Erick's hole. "Wanna know what would be even hotter? I've always wanted to be in a room with two big, hairy gay cops." David said, biting his lip. Bobby and Erick looked at each other as thick black hair sprouted on their chests and legs. Their arms, chests, and legs began to grow with muscle. Bobby's hair became lighter until it was blonde, then grew back into his head, leaving him with the traditional crew cut. He gained around 3 inches until he stood 6'1". His belly rounded slightly, hiding any trace of a six pack. Erick's hair turned almost jet black and also became the traditional crew cut. He however didn't gain any height, nor did his belly round. As a finishing touch, the characteristic aviator glasses grew around their heads and hid their eyes.
"Not bad" David commented, "But you two are missing something... navy blue jockstraps maybe?" He said, looking at the two speedos. They started to shrink as spandex turned to cotton, and turned dark blue. Bobby and Erick shrugged and walked over to the matching jockstraps, stepped into the holes and pulled them up around their waists. Their now ample crotches nestled into the tight pouches. Instantly Ryan and Carter went to work on the cocks now contained in them. Bobby couldn't help but moan as his cock hardened again, thanks to the attention of Carter.
"Uhh, boys?" David said, standing completely naked. Bobby and Erick both smiled at each other. They were horny because of the straps attention, and were more than happy to oblige David. Erick dropped to his knees in front of him, while Bobby and David embraced and began to kiss passionately. Their tongues wrestled, sometimes in David's mouth, sometimes in Bobby's. All the while Ryan and Carter were massaging the large cop cocks that belonged to Bobby and Erick.
"Oh Erick, you're good at that" David moaned. "But I want some alone time with Bobby. Why don't you and Ryan go fuck around? You know... go fuck like dogs." David said with a smile. Erick fell forward and quickly shifted into a male german shepard, and Ryan changed and grew into another male shepard right underneath him. The two ran off into another room, leaving Bobby and David alone. With Carter wrapped firmly around Bobby's crotch, of course.