OK, I'll take the bait. Where exactly do you draw the line between "porn", and "erotic art"? I kind of enjoy artistic pictures of naked women. But, I do edit sets considerably, preferring to keep what could be considered, "nude environmental portraiture". Like my own photography, I find that there's only 1 or 2 shots worthy of "wallpaper" on a 36 shot roll.
As far as hard core goes, here's a couple of fun facts. Japanese porn is extremely degrading to women, as they are always portrayed as objects of scorn. To me at least, it's more often than not, completely inaccessible
(Some ?). Women supposedly enjoy hard core porn, with a romantic twist, where their emotional needs are being met first, as well as the carnal.
FWIW, the only other species on the planet, (whales and dolphins may be suspect), which indulges heavily in "sex play", is the bonobo chimp,
Pan paniscus https://en.wikipedia.org/wiki/Bonobo. The common chimp,
Pan troglodytes, is more of a fighter. We humans, being "much" more advanced, enjoy both outlets in equal measure.