He would never hurt her. She's his friend (more than? who knows), she's a member of his crew (sort of), his whole life centers around protecting others (and killing things that threaten them, but that's not the point). He just cards his fingers through her hair as slowly as possible, feeling the strands slip over his knuckles, and then she picks herself up again and continues her journey.

There's a part of him that feels like he should stop her, should tell her she doesn't have to do this for him. But then he remembers that she knows that and yet she's doing it anyway, and he keeps his mouth shut. Instead, he just lifts his hips when he needs to, helps her get him undressed as best as he can.