It's embarrassing how quickly Bruce finds himself losing control over the situation, but maybe it shouldn't have been so surprising. It's been far too long for him, and when both his body and mind is so starved for the simple touch of another human being he only finds whatever self-control he had crumbling down quickly, like a dam threatening to burst.

His mind is still stuck on the loop of lips-hands-touch that makes his body shiver as goosebumps rise on his skin. His arms feel like lead, lying uselessly at his sides on the couch even though his fingers twitch with the need to simply touch. Tony is touching him everywhere and it feels too good, and he wants this to stop but he can't bring himself to do anything at all.

And then Tony's leg slips between his thighs, rubbing against him just in that way and the figurative dam from before simply bursts. Bruce gasps loudly into Tony's mouth as he feels himself reacting, pants tightening while his thighs tremble with the need to move back against that friction.