[ If anything, he's going to give up the juvenile reason before he gives up the other one, because he's Tony Stark and Tony Stark doesn't show that sort of effect the past can have on him. Not to mention he just thinks they're both dumb reasons, probably, from an outsider's point-of-view. They're good enough for him, but other people? He's used to other people and himself not really being on the same page, regardless of whichever one of them was actually ahead in the book.
Some of those areas are just sensitive, some of them are ticklish, some of them have no feeling at all, but whichever way they go, it's enough to make him squirmy. Trying not to say anything, but you've created both a void and a stimulus, and he does all he can to avoid or react to both, so it's hard. Pretty obviously hard, since more of the effort's going into suppressing the reaction itself, over suppressing the signs of the reaction.
Mostly though, what he does is make noise and let the handcuffs bear the brunt of his venting, muscles in his arms and chest tensing with the reaction, abdomen with the shift in breathing she accrues. It doesn't take particularly long for Tony to fill in a gap when he's not concentrating on anything, and right now the only significant thing he has to concentrate on is her. ]
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Some of those areas are just sensitive, some of them are ticklish, some of them have no feeling at all, but whichever way they go, it's enough to make him squirmy. Trying not to say anything, but you've created both a void and a stimulus, and he does all he can to avoid or react to both, so it's hard. Pretty obviously hard, since more of the effort's going into suppressing the reaction itself, over suppressing the signs of the reaction.
Mostly though, what he does is make noise and let the handcuffs bear the brunt of his venting, muscles in his arms and chest tensing with the reaction, abdomen with the shift in breathing she accrues. It doesn't take particularly long for Tony to fill in a gap when he's not concentrating on anything, and right now the only significant thing he has to concentrate on is her. ]