Bruce shivers the moment Tony strokes his hair and his eyes flutter as a soft groan of appreciation comes from him. His entire body relaxes, content, and he purrs out his contentment against Tony's lips as Tony shifts, sliding out of him and nudging both of them around until they're warm and comfortable against each other.

He curls up beside Tony once they're settled, nuzzling his shoulder as he hums at the feel of Tony's hand running though his hair. Bruce wants to melt into a puddle if he could right there and then. He hums contentedly as he shifts closer, burying his head in the crook of Tony's neck.

"Five minutes," Bruce mumbles the words back in return, murmuring them on the curve of Tony's shoulder as Bruce twists his head around a little to get Tony's hand on that one spot on his head that makes him really melt.

Sure, Bruce is supposed to be the responsible one between them, but right now? He's fully sated and he's comfortable, and he doesn't want Tony to stop petting his head because its nice. He knows he'll regret it if they don't move but he honestly can't bring himself to care now. He just wants to remain curling up against Tony and stay there and let him stroke his hair.

He'll be responsible later. Maybe the next morning. Just not right now because he doesn't want to move at all when its warm and fuzzy and just nice in a way he hadn't been able to get for the longest time.