Steve reflexively glances at Tony’s phone as it lights up, the ‘Avengers Assemble’ alarm resonating through the room. He freezes right as he’s about to launch himself out of the chair to suit up.
"Is that my—Tony, is that a picture of my rear on your phone?"
Tony looks at Steve, then looks at his phone. He shrugs and then grins as he grabs the device, checking on the details of the alert.
"Can’t talk now, Cap. Freedom is ringing," he says, waving the phone over his shoulder as he heads out the door.
"Tony!" Steve shouts after him.