After a while everyone accepted the fact that Steve and Bucky were dating and that captain America wasn't straight but Tony couldn't get one thing off his mind

Movie night
Steve had just walked in with the popcorn and sat down beside Bucky
Tony: you didn't sleep with my father
Steve: for the last time tony, no I didn't sleep with your father, tell him Buck
Bucky: Steve didn't sleep with your father Tony,
Steve gives tony the eyebrows of I told you so
Bucky: but I did
Everyone looks at Bucky shocked and Steve turns to face him
Steve: when
Bucky: when we took that break because of y'know
Tony: why
Bucky: we'll me and Steve took a years break and I was horny and so was your dad, and he was in the grey area where he liked both genders so we fucked and never talked about it again
Steve: why didn't you tell me
Bucky: because he didn't want anyone to know his sexuality, you have to remember it wasn't easy being gay back then Stevie