He knows. He does, because he knows how hard Bruce fought to even come this far. But Tony knows that he'll fight again later, and right now he's trying to prove a point. A sacrifice now to make things better in the long run. He laps over Bruce's throat with his tongue, letting his breath trail hot on his skin. The thrusts are hard and desperate, and Tony keeps him from rubbing himself off right there. Just a little longer.

"Tony," he corrects him. Because this is important now, while Bruce is still in the moment. "Just Tony."

And really, that's all he wants. He tightens his grip, stroking them both with quick, deep strokes that match Bruce's eager thrusts. He's not holding back anymore, and Tony answers that lust-driven motion with raw carnal pleasure given through his fingers and his own erect cock pressing back against Bruce's. He closes his mouth over Bruce's throat, kissing him hot and dirty right under his Adam's apple. There's going to be a mark later. At least right now he's giving Bruce exactly what he wants. He doesn't hold back this time. When Bruce fucks into his hand, Tony curls his fingers to stroke him along the whole way.