Bruce is far too focused on the present now to think about what happens after this, caught up in the heat of the moment and everything else to consider the consequences. He's fallen over the edge, lost to his own need and want because this is one of the few things he can't wholly control - not when it's already gone this far.

He lets out another wordless sound of pleasure as Tony moves his hand, getting on with the program as he tentatively returns the kiss. It's clear that Bruce is rusty and out of practice, but what he lacks in experience he makes up for in his momentary eagerness. Bruce buckles his hips when Tony rubs at the tip of his cock, and his hands scrabble for purchase once more.

This time he buries his fingers into Tony's hair as he grows more desperate, his thrusts starting to grow more and more erratic. He can't think beyond the haze of need and want, the heat of Tony's hand and cock on him - doesn't want to, really, because thinking too much had never led him anywhere good.