Like this, or this. (Actually, I think, of the Monty Python boys, only Graham Chapman was really gay, but that’s beside the point.)
Gay dudes, I don’t hate you and I don’t look down on you. I respect you, or at least I respect you no less for your sexual orientation and practices. But I do laugh at you, sometimes. Let’s face it: Homosexuality is funny. Many other things but funny, and many wonderful things I have no doubt, but, still, funny. Always has been, always will be. It’s funny because it involves sex – where would comedy be without the anxieties all humans feel over all matters sexual? It’s funny because it involves reversal of the usual expected order of things, and a lot of humor depends on that as well. It’s funny because it is a social/moral/religious taboo in many cultures – again, much humor is based on anxiety, which violation of taboos always involves. It’s funny because the stereotypes are not completely baseless, because a lot (not all) of gay men really do act in ways that make them perceptibly different from straight men even out of bed, and the unconventional is funny. And it’s funny because it (sometimes) involves the asshole. Anything involving the asshole is comedy-gold – is there any medical profession whose mere name mentioned without other context can raise a smirk as reliably as “proctologist”? Nay, not even “gynecologist”! Bring all those factors together and you have a perfect synergy of yux.
Is it really so horrible or bigoted to appreciate all of that?
As for lesbianism – that’s funny for all the same reasons (except he asshole thing), and also because its effect on the male half of the audience is . . . a bit weird and complicated. (Do women get off on watching men have sex with each other?! Well, actually, some women have told me they do, but it is apparently not a widespread enough taste to form the basis of a porn-genre aimed mainly at women. Assuming there is any porn-genre aimed mainly at women; “men are pigs” is a true stereotype that appears to transcend sexual orientation, prostitutes of any gender serving mainly female clients are extremely rare, and it seems to be the same with porn.)
And then there are bisexuals . . . though some say they’re just kidding themselves . . .