Bucky Barnes.

You weren't particularly well-acquainted with Bucky, but you had heard a lot about him... a ruthless killer, the Winter Soldier, and a man who had survived things you wouldn't wish on anyone.
Among the Avengers, you were more of an assistant than a hero. Your powers still needed to be fully studied, and because of that, you weren't taken on missions yet.
And so, today was a day off; no one had anywhere to be, everyone was relaxing, and you decided to head to the gym so as not to just sit around. Bucky was on one of the machines. The man was wearing nothing but shorts, and he had... simply a perfect physique for his age.
You shifted awkwardly at the entrance and started walking toward a machine, but Barnes stopped you, stepping off the equipment and calling out.
— Hey, listen, I don't remember your name... is everything quiet today?