Daphne probably would have laughed at the sound he made if she hadn't already been being turned on. Laughter, for her, had no place in sex or the bedroom. It wasn't that someone shouldn't be happy - especially if they were getting laid - but it wasn't as... laid back as the idea of laughter. Who wanted to laugh with the person they were fucking? She could see laughing at the person she was fucking, but still, at the moment, it wasn't the right thing to do.
"You like that, don't you, Malfoy?" she mused, not actually asking him. Kneeling beside him, she reached out and reached under him, undoing his pants without allowing him to move. It was a bit awkward to reach like this, but she didn't care. She didn't pull his pants down at all, either, making sure he was still uncomfortable before she stood up. "Better? Not really. And don't answer."