>>2784361Yea, vaginas do a number of things, they bleed, they pee, they "cum", they birth, they take dicks. turns out most are only really thinking about the taking dick part, or just other sexual stimulation
the anus isn't a sex organ, though it's regularly treated like a proto-vagina in porn anyway, since it's a hole in a woman that can practically take a dick as well
i think it's more a matter of fixation, there's way more porn that includes the anus that doesn't involve scat than does, but if the artist is fixated on the anus, then they're more likely to include all of its functions in that interest