She can now change him in various ways.

"John Doe can now have his appearance altered by Jessica Robertson to whatever she deems appropriate to her whims."

She showed him that passage in the book and then snapped her fingers. He felt his body freeze on the spot. All he could move was his head.

"Now let's see. What can do with my own personal little boy toy? Let's try getting that thing to at least a few more inches so I can at least see how smooth it is."

She then snapped her fingers.

...

Nothing happened.

"Huh? Why isn't it growing?"

She flipped through the pages and saw the reason.

"I am incapable of wearing clothing at school, and this change cannot be undone by future writings within this book, nor can my penis size be made to grow"

She laughed. "You really are something else! You really wanted your penis to be a tiny little hairless nub permanently!? I knew you were sick in the head you pervert."

She stroked her chin and then grinned evilily. She got really close to John and whispered in his ear. "If that little thing can't grow...then maybe I can shrink it further."

"F-further!?"

"Yes...further. It's only 1 inch...but it could be smaller."

John felt his breath quicken as she whispered in his ear, her breath hot as she laid out a scenario.

"Imagine. With a snap of my fingers, I could shrink that nub down further into your body. It would get smaller and smaller, until it looks like a clit."

She stopped for a second as he felt his face grow hotter.

"...and then I'd shrink it further."

"But...how far would it go?"

"To the point where you'd have a literal micropenis. Or maybe it would disappear. You'd walk around without a dick. Not that you had one in the first place." she hissed in his ear.

His stomach started to churn. He was panting and he didn't know whether he hated this idea or loved it.

"Or maybe I can just get rid of it and turn you into a girl. A pretty wittle girl. With a pussy. After all, this is an all-girls school, so you might as well fit the role more than you already do."

She looked down and saw his 1 incher twitching. She chuckled. "You like this idea. I know you do. I could do anything and more to you...and here's the fun part. No matter what, you'd NEVER get your penis back to this pitiful one inch length, ever again. You made your own bed, boy. It's time to lie in it."

He let out a moan. He didn't know if he wanted to beg someone to save him or to make it happen.