Most of the obvious answers have been given.
I’ll add one thing (which is probably also obvious). I don’t know any guy who is interested in girl-on-girl sex with anything other than lipstick lesbians (i.e. a woman a straight man would find attractive). So the visual cues that we find appealing in one are increased exponentially by two beautiful women that we’d find sexually attractive.
One butch lesbian turns me off completely. Two together would probably make me gag.
Agreed. It’s almost as bad as two guys together in terms of the reaction it gets out of me.
Oddly enough, I don’t find lesbian scenes very sexy at all. Two women on a trapoline would be at least more interesting, and even more sexy than watching sex activity between them.
I very much like women, and am not personally repulsed by lesbians, but don’t find lesbian activity interesting. Male on male on the other hand is pretty yucky and repulsive to my eye; even though I want any gender combo to have equal rights, don’t show me!
Especially in the case of
triple penetrations. It amounts basically to two guys rubbing their cocks together very closely.
Yep, I love the “lipstick lesbian” action.
Don’t stop there. What was their reply? 
I never thought of it quite that way!
The BBC show Coupling had a few good things to say on this topic:
First off, there’s a scene (can’t find it on Youtube because my Googlefu sucks) where the women are discussing why men like lesbians. One of them remarks “I mean, it’s a kind of sex where they have absolutely nothing to do. I think I just answered my own question.”
Then there is this (not work safe) theory from Jeff, the guy on the show who represents the part of us that (most) guys are pretty good at keeping away from the part of our brain that talks in public:
http://www.youtube.com/watch?v=Pi-MZOk8oD4 (NSFW, but if you were worried about that, maybe you shouldn’t be reading this thread?)
Not a big fan of that subgenre (“gangbang”)–heck, I’m not a big fan of porn AT ALL; I can’t remember the last time I even saw some–but I’ll say this, speaking strictly academically, you understand…
The emphasis in such scenes is totally on the woman. Yeah, there are a lot of guys, but the whole point of such scenes is in degrading the woman. Some guys get off on that. I don’t get it personally, but that’s just me. For some reason I would find it MORE respectable if a straight guy were to enjoy such material for homosexual reasons, rather than enjoying seeing a woman debauched by so many different men.
Doesn’t do anything for me…
As a person who’s major kink is the degradation of his sexual partners, I can attest that this is indeed the case.
My impression (not being a guy, nor having seen any lipstick lesbian porn) is that on some level, the guy believes that the two hot girls are only doing this because there’s no MAN present. Once he shows up, with all his Manly Maleness, they’ll both want to do him. Preferably at the same time.
There may be an element of this, and there certainly is a lot of porn out there when a guy walks in on two women making out, and they both turn and start in on him. But there also plenty of porn where the guy sets the girls on each other and watches. I mean, yes, eventually they go back to him and suck him dry, but still!..
In my experience, the ratio of actual lesbians to fake, just-for-fun lesbians is like 1:20. So it’s really not that hard to imagine that if I were to walk in the room, that I’d get to participate.
I think that thinking you get to play along is more realistic than thinking they’re actual lesbians.
That’s pretty awesome too. Maybe not on camera but certainly in real life.
I wouldn’t call it “degrading”. It’s de-ladying. See, in our culture, ladies don’t want sex. They withhold it, and men have to work hard to get it. Group scenes, though, depict scenarios where the men don’t have to work for it, and the woman is just going wild. She’s no longer a proper lady that’s clinging to her virtue…she’s a horny slut that’s going to pleasure the men in any way they want.
So it’s only degrading if you consider sluts to be a lower grade than ladies.
I think the cum on their face shots and the spanking stuff is pretty degrading. I can’t even remember a single scene when a woman spanked a man in porn.
There is a LOT of porn featuring women degrading men. In fact, the idea that you haven’t heard of/seen it sounds silly to me.
Not if she likes it.
I’m sure you’re correct. There is donkey porn, horse porn, mule porn, pony porn; great dane porn, Jack Russell terrier porn, and collie porn. I suppose I was unconsciously limiting my porn concepts to those you would typically see on PPV TV, which tends to be more… mainstream and hetero.
Unless she likes it because it’s degrading.
In which case she’s my kind of girl.
I thought that there was only softcore porn on PPV? I’ve never paid for porn, but based on what I’ve seen on late night Showtime they never show dick or puss, much less cum.
Showtime and Cinemax, et al., show only softcore. But Pay Per View and On Demand cable porn show hard core complete with penetration and cum shots. Recently, I noticed a category simply called “Men” that I assume is gay porn, though I haven’t watched any of it. I’ve never seen any titles or category names that suggest any of the zillion types of fetish porn out there.