>>2727803Hardware wise, they are interconnected with the pussy, (and prostate for males), so they provide a sexual benefit for at least enhanced pleasure when done right. Some can even outright orgasm from it. Try getting an orgasm from giving a BJ, it ain't happening. So that is 1 major point in its favor.
Point 2 is it is in the fun zone but doesn't come with consequences like the pussy does. So it is the alternative for free birth control when one doesn't have the pill/condoms/etc.
If you are religious and concerned about virginity, the asshole doesn't give away you had sex, at least not until it has been banged sufficiently frequent. So that also helps it out, sort of a "legal loophole".
While not true today, it was taboo in older times, so that give it a forbidden fruit vibe that accentuates pleasure. It's why incest porn is on the rise, that is about the last thing society still considers taboo.
Then there is the dirty & degrading factor that adds naughtiness to things.
