With Greyback she has to time it perfectly. He tears at her dress, and she has to let him go a little further, his hands on her thighs, he even kisses her and that she hates most of all; too intimate, too real, even if his lips on her mouth do feel a little warm, and her thighs feel a little hotter (that she'll never admit to herself, god she needs to get laid if an evil werewolf is making her feel a little flushed). She squirms under him, but he rakes his fingernails across her side hard, and she lets out a shriek, real and exaggerated all at the same time.