thanks Anthony, very analytic and precise reply! When a woman is aroused then the womb and fornix raises their length and let space for long dick penetration but atmosphere, dirty talk and stamina are necessary to create this scenario. I am 8" but I never reached the post fornix positionThe science behind that posterior fornix orgasm, is a woman needs to be fully aroused for their to be access to this special spot or you are just getting your cervix massacred. Most women don’t like their cervix massacred.
So most women don’t experience this kind of orgasm, either because a man is not big enough or because most women aren’t aroused enough on a one night stand for a big dick to get back there.
This is primarily why a lot of women say size (length) doesn’t really matter or width is what they really love or prefer.
Once a woman consistently gets that post fornix, they now become a size queen.
You don’t need a big dick to get back there - just an oblong object longer than 8” that resembles a dick. She’ll come hard just the same way.