I’m bored at a conference right now so I thought I’d share a research paper with you since I’m in a research mood.
This paper says that many women like anal play but not necessarily just penis-in-butt penetrative sex. They give the terms anal surfacing (rubbing the surface of the anus), anal shallowing (penetration less than a knuckle), and anal pairing (anal penetration pair with vaginal or clitoral stimulation). We sometimes get questions on this forum about how to get girls interested in anal. I’m going to start suggesting these kinds of touching to those people, I know I love these techniques and I would think they could be a nice gateway for people to the wider joys of anal sex.
https://journals.plos.org/plosone/article/file?type=printable&id=10.1371/journal.pone.0268785