This is a weird gray area. In today's times people see two women together as "hot" but two guys together is "gay"
My personal opinion is that MOST women have bisexual desires in their brain but don't act on them due to stigmas or being labeled as bi. Most cases a little alcohol (or a lot) and the guys get the girls going and they start making out or flashing their tits. Don't get me wrong id love to watch another woman devour my wife's pussy but I just dont think she's into that. But then again she's probably never thought about it.