Bucky sighs heavily, hand going from Peter's head to his shoulder. "Just... try and rest a little, okay? Until I stop being jittery," because he sure was hopped up on adrenalin himself, now.

He nods to Happy, offering his other hand, even though it was the metal one. "James Barnes," he replies, offering a weak smile. "But everyone calls me Bucky. Thanks for showing up when you did," because he'd been in way over his head.