And then he groaned as he drew her into his fantasy, set shortly after the library incident. They were in some version of the Room of Requirement, Hermione naked, dripping wet, and eyes flashing the sort of defiance that's just asking to be crushed while Draco sat in a leather armchair, twirling her wand between his fingers.

"So you want this piece of wood back, Granger. And don't want to tell anyone how I got it. Or perhaps you want a repeat?" He smiled wickedly. "My price is half an hour of your time during which you obey me willingly. I've a few spells I want to test and you'll make a wonderful test subject. No unforgivables, nothing that would send you to Madam Pomfrey, they won't hurt, and there will be no aftereffects. I'll let you go with your wand and clothes unless you beg me to keep you longer than that."

He smirked at her. "Some versions of this end up with you signing a contract or even making an Unbreakable Vow."