[Sucking a dick only gets him 90% surety? He'd give Yuuri such a look, if he knew that. He's not going right for it, hand stroking down slowly to get Yuuri more erect, wanting to draw this out so it felt as good as possible. This is a reward, after all!]

You must really want it, then, [he'll kiss the tip, lapping the precum off as he did so. His blue eyes spy up to Yuuri deviously, letting the man watch as his tongue licked over him. He should give a good show,] mmnnn, I hope you think about it a lot more, from here on.