KJ maybe you were right when you said 13 x 9 is the real answer. :D
I agree FutureBigShock. I’d add a couple more reasons to your list: post child-birth vaginal stretching or tearing that may significantly increase a woman’s capacity - and most women seem to get intense pleasure from vaginal stretching. They even get addicted to it on this other forum and carry it to unhealthy extremes. There’s plenty of reasons why the 5” and 6” girths are probably more “ideal” but as it turns out 7 EG is quite good as well.
While fisting offers a lot of clarification on extreme girths, it doesn’t explain why some extreme lengths encounter no problems. There are some very long guys in PE who report almost never bottoming out even with a variety of partners. I’d love to solve that mystery.
Ladies generally report that they do not gain vaginal depth even after years of maximum insertions. And if you look at MRI images of coitus, you’ll see that the angle of penetration is generally pointed at the spine. The depth of the pelvic cavity is well known and fairly consistent, varying from 4 to 6” from the pubic bone to the spine in a study of 203 mothers (vaginal opening is about 1” further than that). In other words, a woman with beyond 7” of depth between the vulva and the spine, would be approximately rarer than 1 in 200.
My guess is that female vaginal angle varies relative to the spine. Most women’s are angled back into the spine, and depth becomes limited by the skeleton. These women would report being unable to gain vaginal depth no matter what. While others (less) are oriented parallel to the spine, and will stretch deeper into the abdominal cavity, limited only by compression of other abdominal tissues and organs. And they could theoretically gain vaginal depth by stretching, although they should also theoretically already be much deeper than “normal” vagina angles. Another guess is some (long) men have learned to angle their penetration away from the spine enough that they get in front of it, and are no longer limited to the 5-7” NBP of normal depth.
It’s really the only explanation. That angle is everything, because if it points into the spine, it’s limited to 5-7 inches, no matter what, simple pelvic anatomy. Bones are in the way and they won’t move. This much is clear: women who can take beyond about 7 NBP are angling in front of the spine. And men who are beyond 7.5 NBP and report rarely ever bottoming out despite many partners - they have found a way to angle in front of the spine on women who normally can’t do it themselves.
It doesn’t explain why women into insertions cannot find extra depth by angling their toys more toward the front though. Maybe some can and other can’t, and it’s just lost in translation. Even among fisters and vagina stretchers, it’s only the men that care about length/depth. The women almost couldn’t care less and are mostly entertaining male questions and obsessions about length.
I suspect some women have a vaginal angle close enough to parallel with the spine, that a skilled lover can control the angle to penetrate beyond ~6” depth. But that there are other women whose vaginal angle is going to be spine limited no matter what position or angle is used. I do remain hopeful to discover some good reason to go past 7.5 NBP, but I don’t think the answer is going to come from the fisting forums.
So a question to the long guys who encounter no problems with bottoming out with several different women: Are you controlling your penetration angle, orienting it toward the front of her body, away from her spine? Or have you been limited to about 6” depth in some positions, but able to penetrate much deeper by angling in front of the spine?
Before 5.5" x 4.1" ///////// Now 7.4" x 4.9"
