Urge
'You know that we're the two most human Avengers.'
'So?'
'We should be the last ones doing this,' Clint explains, continuing to play with the cigarette in his hand. They've been meeting on the roof of Stark Tower from time to time, set up or accidental; they've created a weird kind a bond.
'Why do you do this?' Tony asks, making a vague gesture towards Clint's hand.
'Because I can. I like doing what I can. I love being and Avenger and working for SHIELD, but it always requires being perfect. I want to do some things that are me, even if they are stupid. At least it's not too bad,' Clint explains, as if he was waiting for the question. 'You?'
'When I smoke, I don't drink,' Tony replies truthfully. The roof time is almost like a confession space. 'Don't ask how it works; sometimes it's just a choice between this or that. Maybe alcohol would be a better one if it weren't for… you know,' he breaks off to take a drag.
'Well, you're one brilliant man with endless issues, Tony. And you've got the best stuff…'
'The pleasure is all mine,' Tony laughs.
It's all that simple.