"No, I can't imagine that you'd do it on purpose." It comes out sounding almost playful and Bucky blinks at his own audacity. Maybe it's the late hour, or maybe it's just Tony's absolute belief that he can do this. "Accidental blowing up is an entirely different category."

He tries on a smile for size when Tony backs off the pinch, an expression that grows more genuine when the pinch-pain really does ease. "Fuck, you are amazing, I'm gonna say it every day." He rolls the shoulder a little, flexes the fingers and marvels at the lack of stutter. "I could kiss you for this."

A moment later his brain catches up to his mouth and he blushes bright red.

"It was... oh please don't get me in trouble for this." He's speaking a little too quickly he knows, trying to distract from his faux pas. "Doctor Zola. He sees me up here at Mass General but I don't know where he's based." And why none of Bucky's treatments have been through military institutions.