actually ive decided that infinity war just needs to be 2.5 hours of peter parker trying his best to address various adult superheroes as politely as possible and struggling a lot. attempts range from “your majesty mr panther sir” (accepted with only a small twitch of the lips & shuri giggling a lot) to “starlord”, which earns him 2 hours of riotous mockery from a talking raccoon
When he gets to Bucky his brain just derails complete. “It’s metal arm dude! Oh wait, I can’t call him that, that’s not polite. Aunt May didn’t raise me like that. Winter Soldier? Nah, no. Mr. Winter? Sounds like Jack Frost. Mr. Soldier? No wait that’s dumb. WAIT isn’t Winter Soldier the name HYDRA gave him? Maybe he doesn’t want to be called that. Mr. Red Star? No wait that’s no, bad, no calling the recovering brainwashing victim by communist symbolism plastered on his arm. Bucky? Mr. Bucky? No that sounds like a person nickname Mr. Captain calls him. Mr Barnes? No wait, didn’t we learn in history he was a Sargent? MR Sargent!”
But what actually comes out is “Mr. Winter Soldier Sargent Bucky Mr. Barnes Red Star Man”
Steve and Sam light up like he just gave them ammunition for the next 20 years. Bucky never lives that moment down. They are careful not to do it when Peter’s around for the first 5 years so as to not embarrass the poor child over his mistake.
Bucky gets revenge by telling Peter that Stark is actually pronounced Stank and Tony will be super impressed if he says it that way