That got Iron Man to turn just slightly, the shift barely noticeable if not for the street light catching and glinting off of a sharp edge along his cheek. He didn't say anything for a good long while, letting Pietro think about it a little longer, consider just how often he and kissing his sister and making a drunk fool of himself came up. Until Tony remembered he found Sudoku boring.
Iron Man's head turned back to perfect profile, tilted to watch the street below, and finally he said, "The plan doesn't concern you. You are not involved in the plan. Your plan is to not be out of my sight until I have the time to deal with you and put you back in your cage."