[...Then she withdraws, brushing her thumb over the places where her kisses were.]

Someone allowing you to touch their body is a very special thing. It can be a gesture of great trust. So it's important to show your appreciation for that trust by treating their body with appreciation.

[She raises his hand and puts her own against it, as if comparing the size difference of his big hand and her tiny one. She holds it like that a moment, then laces her fingers in between his.]

Treat their body with great reverence, like it's a holy thing. They've allowed you past their defenses, and it's a great honor. Behave as such.