Female orgasm is 'down to genes'

No, that's not me making a crazy claim. I just finished reading an article dicussing how the likelihood of a woman achieving orgasm is related to genetics. It seems an orgasm is a tool to keep mates longer(ego booster), seems odd that about a 3rd of woman rarely achieve them. I don't know what I really think about this besides that it is interesting.

"It is possible that their influence is physical, causing variations in the G-spot, or psychological, altering arousal, he said."

First use of G-spot I've seen in the news, but yeah also informative.

BBC Online