He's not fond of being cold either which is why his body is so set on creating heating.

At her invitation, he steps in closer, between her knees, leaning in for a kiss before answering her. "It is me offering. Or do you need to wash the dye out first so it doesn't stain your scalp?" Because he's fine with either, he enjoys playing with her hair, even if 'playing with' is washing it or neatening up a trim.