The look that involuntarily crosses his face is probably comical in its surprise, but the expression drops quickly, replaced with pleasure as he smiles at her. "Of course, it would be my pleasure."

Accepting the brush, he gathers her hair until only the ends extend from his fist, and he slowly starts brushing, careful to make sure it doesn't tug or tangle. It's a soothing practice, and he enjoys the repetition and concentration it takes as he slowly works the brush higher toward her head.