>>214263224
>>214263373
It's because the girl is hot and also the cool taboo of it. Certain women are just so sexually freaky and up for a good, freeing, fun time that they will actually encourage homoerotic stuff between two guys, I think some of them even get off on the power of it. Like jamming two dicks in their wet mouth at the same time and in the process frotting the cocks all over each other, to every form and position of double penetration which is pretty inherently homoerotic. There is even a whole porn genre dedicated to it that has exploded in popularity in more recent years, see modern DP DAP DVP porn, friendly fire, etc. It plays off insecurities and taboo and there is definitely a tinge of femdom there. The bi stuff is just that taken to its logical conclusion. I'd marry a girl who is up for stuff like that in a heartbeat.