I decided to write the au fic I was thinking of, where Bucky was the straight-laced guy and Steve the troublemaker and it turned into a college au and it was just going to be the two of them, but then merindab linked to this post, which resulted in this gem to be added to my fic:
And if he had a bit of a crush on Howard, well… who could blame him? Even with a college age son, Howard had only grown more distinguished. Not that he would ever admit it to anyone. Even Steve, his best friend, had no idea that Bucky swung both ways. More than once, Bucky had imagined meeting Howard in person for the first time, and not all of those fantasies were pure.
And it was just supposed to be Steve and Bucky, but now both the Starks have sort of entered the scene and I’m entirely blaming her.
And I am completely okay with this.