Hermione could lose herself entirely in the man if she allowed herself. The longer she was there, the harder it was to remember why she was there in the first place. She couldn't recall the last time she'd been so in lust with someone that she couldn't even think straight. When he stopped touching her long enough to open the door and drag her inside with a tug on her arm, she tried to keep her mind on her purpose. She was there to get the list, not to fall back in the man's bed. In order to keep from being seduced, she had to think clearly and rationally. Letting her biological impulses take over would get her nothing but grief.