I don't believe it for a minute but;
I have a friendship group, all men. We're all now 50s and knew each other initially through our sport, where I competed at a good level, so often trained with men.
Now we still train in a much more recreational way, but also enjoy going to watch the professionals play our sport. Lately, as family responsibilities have become less and we have more spare time and money, this has included some foreign trips.
They seem to enjoy having me along (which has always surprised me) and it's true I do quite a bit of the admin of these trips for them because I'm a control freak
Anyway a female "friend" has just told me "you know they only include you because they all want to sleep with you?"
I'd be very surprised, I'm a very plain middle aged woman, I've always assumed they barely notice I'm female.
They're just my mates....?