Greg became very aware that he was naked.
He didn't look bad. Hell, he'd never looked bad. He prided himself on his body. Especially his...
Something twitched in the back of Greg's mind. He had been incredibly aroused before he'd changed, but the whole time he'd been a bear he hadn't even thought about sex. Now that he was human again, he was already erect.
But this thought was pushed into the back of his mind. His head was full of thoughts of the girl again. But not just her. Lots of women. His ex. The mailwoman. The teenage girl who lived the apartment upstairs. The woman who served him coffee at that place down the street. All of them, naked and contorting through his thoughts. Fondling their breasts in front of him. Using their tongues.
Greg bit his lip. He felt as though he was about to burst with all the arousal. His hand moved of its own accord, down to his cock and he began to pump.
Again, he was filled with a pleasure more intense than he had ever felt. It was even better than last night. His entire body, even each toenail and strand of hair, was consumed by euphoria.
But that thought came back with a vengeance. This was too weird for Greg just to let it pass by unnoticed a second time.
He could not stop his hand from pleasuring himself, but he managed to snap his eyes open.
He could see his reflection in the mirror.
His neck was twice as long as it should have been.
He screamed, but now that his hand had started he could not stop it.
He was growing too. upwards and outwards. He was getting even bigger than he had been as a bear.
His nose began to push itself away from his face. He tried, fruitlessly, to push it back with his free hand. But it kept on going, widening out and growing further. His ears, too, began to change. They moved upwards and grew pointed. It was not long before Greg's head looked exactly like chestnut colored horse.
"Shit!"
Behind him, a long flowing tail had appeared. His cock had grown too, so that he was taking longer and longer sweeps.
He tried desperately to pull his arm away with his free hand, but it was useless. And his hand had begun to change too. His fingers pulled inwards and fused together. His fingernails grew larger and turned a dark black. His left hand had become a hoof.
And his right hand was changing too. The fingers were joining together. But his fingers were wrapped around his cock. The force of the change pushed his hand off his member.
"Yes!"
Now both of his hands were hooves, which meant he couldn't finish masturbating. But the change hadn't finished yet.
Greg checked his reflection. His head, his arms, his cock, and, evidently, his tail were completely equine, but his torso, legs and feet didn't even have fur on them. Greg still felt as though he was about to explode. And somehow, Greg knew that this was so very wrong. He could sense that this wasn't like it was last time and feared that he would only change back once the transformation was complete.
He tried to grasp his cock in between his hooves, but his arms, or rather his legs, could no longer bend down enough to reach it. They jutted out ahead of him awkwardly.
Tears welled up in his eyes.