Steve's M.O. in these situations is to open with a friendly overture, then appeal to practicality, and he's done both those things now. He sort of hoped one of them would work, but he probably should have known better. High stakes, the fate of the world in the balance, none of that matters if you don't believe the messenger bringing you the warning, at least a little bit.

(He doesn't think putting him up to troll Tony like this would be Coulson's style, but he does have to acknowledge it would be a pretty good prank, if it was. Also, goddamn it, Coulson drew sketches? He wants to see. He had no idea the man could draw--but there's no time now.)

So, okay. Nothing's gotten through yet, so no more Mister Nice Cap. He puts on a faint, superior smile and takes a few steps closer. "Okay. You better not tell Coulson what you did with all those Captain America trading cards you used to have. He'd be horrified. Did you have any input on the outfit? I hear you were really into the red boots."

He leans an elbow on the bar. "You told me yourself. Eight years from now."

Didn't he promise to try not to give this version any ideas? Whoops. Granted, the older Tony didn't explicitly tell Steve he used to jerk off to that one trading card--he just means Coulson would be horrified they were destroyed--but there's room for interpretation in that innuendo.

Well, bringing his sexual history in helped convince the younger Steve. Might as well try it here, too.