[Sion takes the hint, using the hand under Naoto's shoulders to hold him closer, pressing down so his body is covering Naoto's, skin to skin, close as possible, chests pressed together, Naoto's cock trapped between their bellies (extra friction) and Sion only barely braced above Naoto.]

[He moves inside Naoto by rolling his hips instead of thrusting, trying to hit just right without pulling out much yet, lips brushing Naoto's, sharing breath and generally just slowly, passionately making love to him.]