Steve very gradually and slowly changes position just enough to make sure they're both in a position they can stay in, and that makes sure there's enough contact between them that Clint can continue to feel him breathe.

Then slowly leans his head back again, closes his eyes and finds a rhythm of sliding his fingers through Clint's hair that matches his breathing. Lets his nails drag lightly across skin while he does and just holds onto Clint and flat out pets him.

Steve almost wants to cry when Clint shudders, though he doesn't. There's a lot of relief for him in this, too. Because he can absolutely be rough, and provide physical and precise pain - but this is better. Not a thought in his head on the 'favor' being 'returned' - that falls into the realm of so long gone he's completely given up on having it - but this? Hurts, feels normal and right, and also feels really fucking good.

And he will do it until hell freezes or there's some sign to stop or change gears and direction.