Snape

You wrap your arms around his neck, pulling him closer to you as you kiss him deeply.

You pull away from the kiss, and look at him. "We can't do this here, they'll find out.

You two were in the back of the classroom, away from prying eyes, and you were sitting on his lap as he had his arms wrapped around your waist. He was leaning back against a desk, his lips on your neck.