I’m shamelessly stealing that person idea, because I think it’s an interesting question.
Personally I’m into porn involving some forms of abuse, often it’s rape but it could also be just spanking or gaslight. Of course I’m not into that in real life. I know CNC is a thing, same with consensual SM and I could be into trying those one day, but I don’t see myself doing that with my husband anytime soon, and it’s different when it’s planned in advance, which is not always the case in the story presented in porn.
Man, I’ve become rather unfond of porn at all. I’ve gotten to the point that it’s written erotica and fantasy for me. Porn has gotten so ugly so often that it’s all just offputting for me.
That being said, back when I did use porn, it was anal. It’s one of those things that is very rarely on my list of things to do (for my own pleasure, I’ll do it if a partner wants it), but it uses to be arousing because of the implied openness and trust (which, I know, isn’t the case in porn, but that’s the part that makes me willing to do it irl). It’s the idea of “oh, I’ll share everything with you” that’s interesting about it in porn.
Irl, I still get turned on by that idea, but anal itself is not anywhere near as enjoyable as vaginal sex. To the contrary, sometimes it’s distinctly unenjoyable for various reasons.