Research shows how the shape of a woman’s genital can determine her ability to orgasm during intercourse

We often hear how a man's anatomy is to credit - or blame - for a partner's level of sexual pleasure. But new research suggests that a woman's own genital configuration will ultimately determine her ability to orgasm during penetrative sex. The study, conducted by Leslie Hoffman at Indiana University's department of anatomy, says the clitoris' close proximity to the urinary tract is essential for satisfaction. And, interestingly, it's something that's determined while still in the womb. The report, published in the journal Clinical Anatomy, claims the clitoris 'drifts' away from the vaginal opening during gestation. Where it ends up is determined by the amount of hormones its exposed to, but if the eventual distance measures 2.5 cm or less then women will still enjoy sufficient friction during traditional intercourse.
However, if it's located 3cm or more away, it will likely be too far removed for effective stimulation.
In fact, climaxing without additional stimulus might be impossible, Elisabeth Lloyd - faculty scholar with the Kinsey Institute for Research in Sex, Gender and Reproduction -  told Medical Xpress. The magic number is 2.5cm. It's so strong a correlation that if you give us a woman who has a distance of 3 centimeters, we can very reliably predict she won't orgasm with intercourse,' she said.
'Women can do this measurement themselves or with their partner, to help explain their own sexual experience.'
She added that other factors - including penis size, level of attraction and a partner's performance - 'might have some effect [on orgasm], but it really is the anatomical distance that seems to be predictive'.
According to information by the Kinsey Institute, men are more likely to orgasm when sex includes vaginal intercourse; whereas women are more likely to orgasm when they engage in a variety of sex acts and when oral sex or vaginal intercourse is included. They also report that women are much more likely to be nearly always or always orgasmic when alone than with a partner. However, among women currently in a partnered relationship, 62 per cent say they are very satisfied with the frequency/consistency of orgasm.

Source: MedicalXpress