Sam let out a pleasant groan, relaxing back as Dean worked. Though he'd felt kind of weird about that oral fixation of his brother's in the beginning, like it might be kind of selfish or something to indulge him all the time... Dean really did seem to enjoy it, get off on it even.

So as long as Dean enjoyed himself, he wasn't going to protest. There definitely wasn't any hurry either. The edge had definitely been taken off. "God, love your mouth, Dean. So good at that..."