There is no evolutionary reason for female orgasm. A man has to procreate in order to deliver sperm and create a new person. A woman’s orgasm is not tied to procreation. It is this fact that has led to men greatly fearing woman’s sexuality and drives most of the reasons for men enforcing patriarchy. In other words, men suppress woman because they fear female orgasm and enforce rules to control woman’s sexuality such as the insistence on chastity and virginity before marriage and father’s and mother’s enforcing purity rings and pledges.
Not all penises are the same, not all men are good lovers. That is the last thing insecure men want woman to know. If a woman marries an inadequate man, and that man is her only lover, the man will not lose the woman. She knows nothing else. If a woman has sexual experience and then finds an inadequate man, she may still chose to marry him for all kinds of reasons, but he knows, that she knows that he is inadequate. She may then search for more pleasure with better lovers after the marriage.
The whole goal of enforcing chastity and virginity is to keep woman from being able to judge the physical and practical inadequacy of their future spouse.
© words by Dan DeMarle 2019