I would guess that there are more women than men who’ve experimented with same-sex partners. Probably a lot more.
Probably because there’s more stigma attached to being a gay man. Most people I know, man and women think that F-F sex, if not very erotic (guess which group thinks this…) then at least isn’t gross. But, ask that same group about M-M sex and most think it’s dirty and icky.
Probably because M-M sex is usually thought to include anal sex, and many people aren’t too keen on the idea. (No idea how many of these anti-anal people then go home and have M-F anal sex…)
But, I know a few gay guys who say that anal sex isn’t really something they’re into. So, maybe people just think M-M sex is gross because they don’t understand how it’s usually performed.
As for the numbers, I’d guess that seventy five percent or so of the women I know have had at least one lesbian affair. But, as for the number who are practicing lesbians, it’s a lot lower. Perhaps close to that 10% number.
I’m sure a lot of the guys in my circle of friends (as in, more than two admitted gays we hang out with) have had some sort of male-male sexual experience. But, with the general stigma attached to it. (Strangely enough, nobody thinks the gays are strange, just that bisexual guys would be. It’s weird.)
But, most of them would probably behave differently in a threeway, with one of the people being the same sex as them, because you can experiment without feeling that you’re having gay/lesbian sex, it’s just a little nibbling or fondling between the main action.
Anyways, to sum up the rambling. Over fifty percent of the women have and admit to it, more probably have. I’d guess about 20% of the guys admit to similar, and probably twice that have done something, but don’t admit it.
Yarster:
I don’t know anyone who has actually been to an orgy, as in, where there is a room full of people having sex.
Many people (in this same group of friends) have talked about threeways, or two couples having sex together, but not sharing partners. And one guy had sex with his then partner with a few of their friends around (2-3 I’d guess) but not participating.
But then, this group is a little liberal, and fairly younger (18-30 or so) which might skew the numbers a bit.