He didn't immediately deny what she said. Either he didn't want to lie to her or he wasn't even listening. Based on the way his eyes were staring at her lips, she suspected the latter. He chose to cover them with his before saying another word. Hermione discovered she didn't really mind. It was a conversation that eventually they were going to have to have. The sneaking around couldn't go on forever. But, for the moment, she was going to enjoy it while she could.