== Proposed acknowledgement of C-V distance and significance during penetrative sex == 

 the distance between the clitoris tip and the vaginal canal has a significant impact on a womans ability to orgasm during penetrative sex according to Princess Marie Bonaparte's studies in the 1920's, women with shorter C-V distance (clitoris closer to the vaginal opening) are much better able to orgasm from penetrative sex alone without manually simulating the clitoris. 

 the female C-V distance also genetically corresponds to the length of the male penis shaft, meaning large penis fathers are creating female offspring who cannot orgasm during penetrative sex because their clitoris is too far from the opening of their vagina, even if these large-vulva women enjoy penetration they likely cannot orgasm from penetration alone. ideally men would have short girthy penises and women would have small round vulvas with clitoris's right near the edge of the vaginal canal allowing both male and female to orgasm during penetrative sex, as is often seen in asian populations. men and women in most of asia have descended both from fathers with shorter penises in combination with mothers having shorter C-V distance. in reality only a minority of women in western countries have a short enough C-V distance to orgasm consistently from penetrative sex alone and the average male penis shaft length is 2-3 inches longer than the average asian population of males, penis shaft length and clitoris-vagina distance can also genetically correspond to body height. 

 http://www.latimes.com/health/la-hew-ordistance11feb11-story.html 

 http://abcnews.go.com/Health/ReproductiveHealth/sex-study-female-orgasm-eludes-majority-women/story?id=8485289 

 http://www.huffingtonpost.com/2014/10/09/g-spot-vaginal-orgasm-myth_n_5947930.html 

 http://www.78stepshealth.us/human-physiology/development-of-accessory-sex-organs-and-external-genitalia.html 

 http://www.hypospadias-emotions.com/chapter01.html