Axel dragged Marco back into the basement and pinned him down to the black, leather couch. Around him, Pablo was still fucking Aaron and Aaron was turning into a stag with a huge dick. Zack and Ryan were gorging themselves on pizza, Ryan gut was expanding as he was slowly becoming more and more like a anthro-donkey hunk. Jack went over and joined in on Zack and Ryan's fun while Axel had his way with Marco, who was helpless with a huge gorilla-man pinning him down.
"What the fuck is going on!?" Marco yelled. "Who are you?!"
"You don't recognize me?" the ape replied as his foot-long dick rose up and was now touching Marco's stomach. "You will soon, baby"
Axel flipped Marco on his back and ripped off Marco's wife beater and exercise shorts and pink boxers. All Marco had left on was his red ball cap that he wore backwards everyday. Axel rubbed his cock around Marco's asshole, taunting him, and finally said "You ready, buddy?"
"Fuck you!" Marco replied as Axel slowly pushed his huge simian cock into Marco's ass. Marco resisted at first, then he just laid there, moaning, and then he started to enjoy it. He thrusted his ass back into Axel's dick.
"Fuck me harder!" Marco yelled. Axel obliged him and somehow, Marco managed to take Axel's foot-long cock balls deep.
As Axel kept fucking Marco, Marco's cock was slowly growing bigger than its already fully erect state. Marco's chest and pubic hair started to thicken and spread. Just like the others, Marco was turning from a straight, pussy hungry jock into a (very) gay, cocksucking beast.
Marco was becoming a.....