She hums an affirmative sound around the nipple in her mouth, keeps up teasing the other with one hand. That leaves a free hand though, what to do with it?

She strokes down his sides with her 'free' hand, fingers moving carefully over his ribs. She almost thinks she can FEEL his heart hammering as she works.

Balance is getting a bit tricky, but that's what WINGS are for! She manifests her wings and Skellig can hear them, feel the displaced air move over him. The rustle of her feathers as she moves her wings to better balance over his body, to better position herself to pleasure him comfortably, might be comparatively loud in the quiet of the room.