New Memory

Draco Malfoy lifted his wand from Cho's forehead, and a strand of light followed. He, Crabbe, and Goyle stood over the sleeping Cho. "There, now she has no memory of who she is," said Draco.

"What do we do now?" asked Goyle.

"We give her a new identity and personality, of course," said Draco. He bent down and whispered into Cho's ear: "Your name is Ho Bang, and you will willingly have sex with anyone at Hogwarts. You cannot refuse any sex act requested of you. Not only that, but you love being the sexiest girl at Hogwarts, and think all the other girls at this school are stuck-up prudish bitches who hate you, and the best way to prove you're sexier than them is to fuck as many of the 7th year male students as possible. Got that Ho Bang? If anyone says your name is anything other than 'Ho Bang,' you'll have to prove them wrong by fucking them if they're a boy or spitting in her face if it's a girl."

As he whispered, a silver light travelled from his mouth into Cho's ear. She stirred a bit in her sleep.

Draco stood up. "Can't wait to meet Ho Bang in the morning."

Before they left, they cast spells on Cho's skirts, making them several inches shorter, made all over bras vanish, and shrank her blouses by two sizes. They crept back to their dorm.