I can see how many people will find the disire to find a relevance between vaginal size/depth and visible features to be pointless, but I share the interest. I guess mainly becuase I have a size fetish and feel that I would be unhappy with woman with a small vagia. I’m the male version of a size queen.
This would be hard to study for many reasons.
1. Number of women that each of us are able to, or are willing to measure.
2. The ability or lack of the ability to bring a woman to full arousal.
3. The apex of the vagina or the posterior fornix is quite elastic and its depth varies at times.
4. Each woman’s opinion on what is pleasurable/painful.
I do feel that there is a slight connection between a woman’s facial features and her vagina’s appearance and size. This would be true if we could study women that have not had children and were all of equal bodyfat percentages (mostly for labia appearance).
The only slight connection that I have drawn is mouth width and vaginal looseness/tightness. Also, I feel that a woman can usually not be chicken lipped on her mouth (have thin lips) and have luscious large inner labia. A woman with soft little features usualy has a softer less angled vagina, and a woman with stronger features/ larger eyes and such may seem to have larger more womanly womanhood. Taoist have writings on this, but I’m not sold on it yet.