He smiles again. He can't help it. He can feel what Tom's body is asking for, begging for, like he's said it aloud. Maybe he doesn't need to train him to like any of this. Maybe it's all already there.

His lips trail teasingly down and over Tom's tailbone, and as his tongue flicks out and tastes sweat his thumbs scrape down over angry red flesh, wanting to make it rawer, angrier.

Pleasure and pain. First separately. Now together.