>>15489840The anus itself has a lot of nerve endings, and penetration can also stimulate the vagina in different ways for some women.
Think of how some guys can get off by prodding their prostate gland, which is located behind the anterior wall, but replace it with the G-spot, and it's pretty similar to that in concept.
This, of course, depends on their build and how thin their wall is, so some will get a lot more pleasure out of it than others, much like how some guys can't get off to butt stuff whatsoever and other ones cream themselves immediately.
Or it can just be psychological and/or masochistic in nature.
reject front ass, embrace tradition
