this sounds way to specific to not have actually happened. please do tell.

It happens allllll the time. There are many tales of the straight women who like to string along gay and bisexual women. Sometimes the 'straight' women are just closeted and still have a lot of deeply-ingrained shame about openly liking women--hence their vagueness and hot/cold behavior-- but some are just pretending to be into us in order to appease their straight boyfriends who have been begging them to have a threesome or become polyamorous or whatever and so they oblige due to not wanting to seem uptight or unadventurous. Usually it's the younger ex sorority girl types who are feeling drunk and whimsical. (And there's nothing wrong with that, it's just confusing for me if they get really touchy and try to kiss me as soon as we're in private but then declare they're straight later on.)

It's not as if I'm staunchly opposed to threesomes in general (though any sort of one night stand is pretty unappealing to me)-- I just would rather not have one with two straight people, especially if I were just a novelty.

edit: I'm sure gay and bi men experience this a lot as well.

Faux bisexuality has become a white suburban rite of passage. Unless those girls follow through with some muff munching out them for fraudulent sexual appropriation. Cunnilingus or shame! Don't wash it for them neither.

oh yeah, i can totally believe that. im from a relatively tiny town where most people (unfortunately) still hold really traditional values and therefore i only grew up with a handful of openly gay/bi friends. from what they tell me there's a shocking number of people around here who will go out of their way to befriend them just with the intentions to experiment with threesomes, gay sex, or whatever else.

essentially im now convinced that every single rich older man and woman around here is a closeted sexual deviant.