Beefcake

"Since you liked turning all my females students into exaggerated fantasy sex objects so much, let's do the same to you."

She started making adjustments, and your body changed. Your shirt ripped as your pecs filled out. The thighs of your jeans split open as your quads grew to massive size. All the muscles on your body were instantly sore as they swelled up to bodybuilder size. The pain went away quickly, and then you saw your huge muscles gain definition as your professor removed almost all your body fat.

Then there was a change in your pants. The crotch got super tight as your cock grew. It didn't feel like it was getting hard, just bigger. There was also a weird tingling, but you couldn't quite tell what it was.

"That's your pubic hair," said the teacher, recognizing the confused look on your face. "I made the maximum length a half inch. Not so short it looks weird, but trim enough to be out of the way. Speaking of hair, let's see how you look as a blonde."

After a couple taps, she said, "Not bad, but let's take a run at those cheek bones. Maybe a little tweak to the nose, and perhaps a couple other things."

When she was finally done, she turned the phone onto selfie mode and showed it to you. You looked like a completely different person! You looked like some kind or muscular action movie star. Your eyes were brighter blue than any you'd ever seen, your skin and teeth were perfect, and even your lips had a pouty perfection. Logically, you knew you should have been freaked out by these changes, but the permanent dopamine happy pill she'd built into your brain kept you calm. Besides, you clearly looked good.

The professor raised her hand up, then stopped herself before she could stroke your muscular chest. "Oh wow. I should be careful. This is addictive."