Nice Work if You Can Get It (слэш)

Bucky Barnes and his best pal Steve Rogers stumble into a situation that leaves Bucky feeling tongue-tied, out of his element, and convinced that Steve—Steve!—has more experience with the ladies than he previously let on. It's terrible.
(Pre-serum Steve, pre-war Brooklyn, befuddled Bucky, and showgirls, for your pleasure.)