#Bucky: huh... not sure why he felt the need to specify my gender... must be a future thing...

[fruitybattybat]

I have a headcannon that Sam (and everyone else) knows that he and Bucky are basically dating, but Bucky has no idea.

Bucky is used to mildly concerning levels of codependency within his friendships. He feels the same way about Sam that he used to feel about Steve, but Steve and him grew up in the 30's and were probably not talking about how they were in love with each other back then. And then they were only in the future together for like 5 minutes, so again, not much time to discuss feelings.

So Bucky's just like "Yeah, Sam's my best friend. I love him. I would do anything for him. He brought me to meet his family. And we kiss sometimes after missions. Best friends." :)