And then the transformation began.
Terry watched in surprise as one by one, his clothes disappeared, save his y-fronts.
Terry stated as his reflection in the mirror, as his ears pointed, almost bat-like.
Then, his eyes became black and beady, and the teeth in his mouth became sharp.
And His hair turned bright blue.
"It's working!" he exclaimed. "I can feel every single molecule of my body starting to change!"
On his hands, the fingers became elongated claws, with clawed nails. And his hands turned green.
His legs reduced in length, then, His feet grew 2 shoe sizes bigger, and the toes merged into bigger toes, thus causing Terry to have 3 toes on his feet. And webbing grew in between the toes.
Then, a small thin tail with a triangle end popped out from his behind, above his underpants.
Finally, His belly button was replaced by a huge yellow slitted eye.
Then, His body turned pale purple, minus the hands and feet, which turned green, and pink spots came on his back.
Terry admired his monster self in the mirror. "I look ferocious." He said to himself. He growls in satisfaction.
When he dipped his hand down his y-fronts, he found his penis had gone, and in its place was a slit.
"Well I'll be damned!" He said. "I've lost my dick!"
(Terry had failed to take into account that when the transformation site turned males into monsters, their penises would be removed, or transformed into vaginas.)