Because they are both predators, perhaps? Who knows.

She's gentle, careful, as she kisses him. A chaste brush of lips against his own. The nerves retreat a little as he doesn't pull away, doesn't indicate that he wants her to stop. The contact, the Light, send shivers up and down her spine.

She's breathing more heavily when she pulls away, feels the ache in her shoulder. "Will have to cut the damn thing out," she tells him.