Bucky's tense. Steve is absolutely terrified in this moment that Bucky will somersault through a window and it'll be another two, ten, ninety years before he sees him again.

He swallows, but doesn't flinch. Doesn't yelp, squawk, panic. "I see."

He takes a step closer, but doesn't touch Bucky. "Did you get hurt? I have a first aid kit around here somewhere."