"...Rat. Enjoy."
Before Tom could even react, a sharp pain caught him in the stomach as if he had been skewered. His body was suddenly alight with heat, causing him to start to sweat and breath more heavily. His bones sent suddenly like they were being warped, his very organs feeling large in his body while something odd pressed against his ass.
Throwing off his covers, his hands were shaking when they went to the waist of his pants and pulled them down. His seven cut inches were hard, almost pulsing, but he pushed that aside to better see the new appendage from growing the base of his spine. Tom grabbed it- felt it- and it was all too real, and still growing. He noticed then his hips, his stomach and even ribs looked more lean and exposed. Then it was his hands, his fingers starting to stretched out and grow more hairy.
"Oh no, no, no," Tom said in a panic. He tried to bend his fingers but found it hard to even manage. When there was a ripping noise at his feet, he looked down and saw his toes following suit with the nails have grown out too. Tom quickly looked to Matt, still unaware, and reached out desperately from his bed. "Help!" he wheezed.
Tom felt his face start to burn and itch. He shut his eyes, even as his nose ached and jaw popped repeatedly. When he opened them again, a small snout greeted him.
"I'm turning into a rat," he mumbled to himself.
His head in a haze, ears growing up his balding head, he slipped off the bed to the floor. His pants didn't follow, or socks, as he had shrunk from 6 foot to 4 and lost over a hundred sweating pounds. Back arched, tail growing and whiskers coming in, Tom felt his cock starting to spurt and empty his balls of human seed. Soon to be replaced by...