Greg and the other man, whose name had been Jacob, pushed past the broken door and entered the room of Scott and Steve. They had randomly been chosen to live together and were not close. Steve pushed past Scott to get away but Scott grabbed his shirt and pulled him off balance, tripping him to the ground. Scott ran back into his room and locked the door. Jacob started pounding on it to get in while Greg was busy dealing with Steve.
Greg's long floppy cock grew hard and leaked cum as he pushed Steve over a table. He took his hooven hand and scooped up the precum and put his hand over Steve's face, forcing the cum into his mouth and nostrils. Steve's fear and shock turned to pleasure as the taste and smell of horse cum warped his mind and body. He thrust his hips back, grinding his ass against the hard cock pressing against him. His face pushed out into a muzzle and a long tongue rolled out of his mouth. Greg ripped his pants off and a flaccid cock flopped out of Steve's boxers. It was growing longer and harder by the second, pushing out of the foreskin and morphing into a thick horse cock.
Greg stuck his own cock into Steve's anus and started thrusting. Steve's legs and feet changed as he thrust his hips back and forth. When Greg came, Steve's testicles swelled with semen. It was like he was shooting his load right into Steve's balls. Steve climaxed and started shooting ropes of cum against a wall. The rest of his changes soon after. Together with Greg and Jacob, he broke down Scott's door. Greg and Jacob held Scott down on a bed while Steve forced his penis into Scott's mouth.
A few minutes later, the four pleasure beasts stepped back into the hallway where similar scenes were unfolding in other dorm rooms. Naomi and Jack stood at either end of the hallway and caught those who tried to escape while the others broke into the rooms. Faster and faster, the students on the floor were mutated into equine sex beasts until they started spreading to other floors and eventually outside the dorm.