Yessss omg. Tony isn’t even jerking himself; he has one hand in his mouth and one on the headboard. Maybe he cups one hand under his cock, just to steady himself, but nothing else. So it takes a long time, Steve slowly building him up, laving his strong hot tongue over his crease, along his hole, over the rim, before pushing it forcefully up inside him, and Tony starts making more and more noises, little throaty moans, hoarse hitching little gasps, high-pitched sounds, rolling his hips just a little with Steve’s finger, his stroking tongue, his sucks and licks, and finally Tony’s just begging incoherently, riding Steve’s finger and his tongue, and Steve’s just beyond gone on it, his whole world is the smell and taste of Tony, his damp thighs, his sweaty skin, and the sounds he makes, the feel of him inside against his tongue, and when Tony comes, gasping and jerking, Steve comes as well with helpless gasps, his head throwing back and his hips jerking up.