Suddenly, you hear footsteps approaching the door. You decide it's time to wrap this up and get into position, yanking your hair to make it long and licking your lips to puff them up. As the lock begins to turn, you rub your eyes and adam's apple frantically to shift those, too.
"Who the hell are you?!" a grating old voice asked.
You could tell by the raspy voice, wrinkled skin, greying brunette hair, and haggish demeanor that this was old Miss Crataple, aka "Mrs. Crabapple".
You grin and strut over to her, grabbing onto her head as you clutch your magic stone.
A haze overcomes her eyes as your wish begins to warp her, shape her, melt her brains to hot goo to mold into what you wanted. Miss Crabapple struggled furiously as the wish did it's job, but it ultimately ends in her submission. You smiled as years of time faded off her body, changing the bitter old hag into something you desired, and the teacher loudly moaning whilst kneading her rejuvenated assets. Her wrinkles faded, her breasts perked and firmed up, even her flabby ass got some bounce to it. She was aging backwards and mentally transforming into...