This is more like crack humor but maybe something causes Bucky to take off his pants and stretch his ass open in a public place?
Something that reminds him of the STRIKE team giving him the signal to take his pants off so they could fuck him. I'm talking Bucky on his knees, cheek against the ground, ass sticking up in the air, hands holding his cheeks open. He gets hard too. Then he just waits there and refuses to get up.
Steve finally turns on the news and what does he see? Bucky's ass blurred by a censor viewed from a helicopter, surrounded by cop cars.
Somebody's gotta go get that asset out of his mental programming!