[He takes encouragement well -- always has, because he'll never be able to entirely turn off that part of his brain that's eager to please and to take orders -- so her fingers in his hair just inspire him to try harder. With one hand still gripping her, his other hand frees itself from his grip on her thigh to gently nudge her legs a little further apart, enough to slide one finger inside of her. The way he sees it, if his mouth is good, his mouth and fingers can only be a better combination, right?]
no subject