[Though she can't see it, his smile widens when she catches his head to hold him there, the implication obvious. She wants him to tell her want he wants to have done to him, and that thought, that thought is far hotter than it has any right to be. And he'd thought hearing her tell him that she wanted it inside her was hot...]

Use your tongue, the way I did on you. Lick it slowly, up and down and then over the tip. Surprise me-- fast, slow, rough, gentle, don't let me be able to guess what you're going to do next. The anticipation feels just as good as the act itself.