It had only been two weeks, but he already knew how to make her body sing with just a few touches. She was wet and waiting for his fingers, sighing as he used two fingers to penetrate her, the heel of his palm pressed against her clit. The movement was slightly awkward, hindered by her clothes, but it was effective, making her moan, her voice echoing in the library. Hermione let her eyes slip closed, thankful for his arm around her when she felt her knees grow weak from the feeling.