The last person who kissed him pushed him into a pit because she didn't need him, she needed Hulk, and he lost two years because of it. That one's still pretty raw, too, thanks to Hulk-based time travel.

He has a lot of wants bubbling up but oddly, not the usual smorgasbord of fears. He's definitely going to have to get FRIDAY to do some more analysis on this hot tub and its surroundings, but hey there's a few seconds there where he doesn't care about that and his lips are just as plush as Tony has been imagining, softening and returning that kiss.

Then the seconds have ticked by and he's pulling back enough to see Tony's expression and give a slow, confused shake of his head. He should be pissed off at himself and at Tony, but he's not; he should be furious at the situation, but he's not; he should be afraid of calling Hulk back somewhere he'd consider his stomping grounds, and he is. Not even the magically relaxing alien hot tub can completely quash that integral part of his nature. "You know that's probably the worst idea you've ever had, right?"

His heart rate has barely ticked up at all.