Sarah grinned and looked at Ben. "OK, I'm going to change you back. But I want to make a couple of little changes, OK?"
He stared up at her, feeling a bit scared. What could he do to stop her?
Clicking a few menues and selecting options, Sarah finally seemed satisfied. "There! This should be really interesting." She hit return.
Ben started to get older rapidly. His hair grew back out, copper-red curls falling in front of his eyes. Red? Scrambling up as he became a boy instead of a baby, Ben stumbled over to a floor-length mirror and stared. His hair was the same color as Sarah's, and his eyes had gone from brown to a pale, almost gray-blue color. Freckles appeared on his nose, then his cheeks, then all over.
Stretching up to a ten year-old, he saw that he was a bit thinner and taller than he had been at this age, and his face looked a lot different. Going back through puberty the right was was much more interesting this time, for his now-uncircumcized penis swelled out to twice the length and thickness it had been before, and his testicles grew to the size of ping-pong balls.
Sixteen now, and he was lean and muscular, with shoulder-length red hair and the biggest sexual equipment he had ever seen on a human. It didn't even look all that human any more - more like the penis and balls of a horse! Then the skin darkened as his dick and balls changed again, this time becoming a true donkey dick! He was literally hung like a jackass!
The change finally stopped when he looked about 20. his face looked like some sterotypical farm boy from an old painting, but the rest of him was a lean, hard sex machine that was getting harder by the moment.
Sarah got up from the computer and gaped. "I didn't think it would really work!" Her eyes widened and she started tearing off her own clothes as she moved towards him. "I gotta try that monster dick of yours out!"