The Jar

The Avengers are ridiculously competitive people, and what starts out as a silly late-night team discussion quickly becomes a contest: their names. Not the code names -- the nicknames. Who can go the longest without using them? They pledge to spend a week not nicknaming each other, and they'll pay up every time they mess up. This hits Tony the hardest, and not just financially. Tony's got a lot of nicknames for everyone, but most of all for Steve -- and when Tony can't use the names he's already got, the names he uses reveal feelings he had no idea he had.