"I've got you," Tony says, and it sounds almost like a promise. He smoothes his free hand up and down Steve's side, apparently just for the sake of touching him, and follows his gaze down to watch Steve's cock move through his fingers. Tony makes a low sound of his own, his grip firming without him meaning to.

"Just let go for me, hm?" It's halfway between soothing and goading as he feels Steve's body move restlessly under him. Someday Tony might try teasing him out of his mind, but he's not sure even he has the patience for that right now. Not with Steve already looking half out of his mind and desperate to fall the rest of the way.

He strokes him faster, letting the calluses on his fingers catch on every sensitive spot he can find. Every bit of concentration he usually puts into his work, he's got on pulling Steve's orgasm out of him now.