
I had an interesting discussion today with my Ob/Gyn, obstetrician/gynecologist, a female health specialist doctor during my routing pregnancy checkup. Anyway, we have seen so much of each other during my three pregnancies, we have become rather friendly and end up spending time talking about topics outside the bounds of my specific health.

Today, we first were talking about how weird it was that nipples would randomly get hard and sensitive at random times that did not make much sense. According to her, this is related to oxytocin, the pair bonding hormone, being released due to various stimuli. This could be a baby crying, but it could also be during sexual arousal or after orgasm or just close contact with another person. I suppose if my understanding is correct, guys could potentially tell if we are bonding with them emotionally.
That got us talking about orgasms and she had an interesting stat that 25% or women (or around there) do not have the nerve framework to allow for vaginally induced orgasms. While other women have varying degrees of receptivity from marginally up to extremely receptive. For most women it requires involvement of the clitoris, which includes the roof of the vaginally due to interconnectivity to those nerves.
Over the years, I have always been interest how friends would say how difficult they would have it having orgasms during sex when it seemed straight forward to me, but this was interesting to find out. It explains why guys might have trouble from relationship to relationship and the importance of communicating needs.
One last thing. The most important thing that stops a woman from climaxing? Anxiety. Something to keep in mind for your relationships, guys.
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