Who the Hell Is Bucky?

Prompt for Creative Writing: Make a vivid image of a memory that was recent. A short excerpt of what I believe happened to Bucky when the mask fell off. Just watching his body react just electrified this to be written down. I do not own any characters. PS: I asked my teacher if it was ok, and he said sure. So I am allowed to write discreet fanfics. He's a huge fan of Wolverine