I usually don’t comment on this subreddit (since I’m a man and am mainly here to listen) but couldn’t resist throwing in my two cents here. I’m mainly talking about orgasms here that involve squirting, although I understand there are many types of female orgasms. I think the squirting orgasm would make a woman more likely to become pregnant with that specific man’s seed. Imagine the mating rituals of hunter gatherer tribes where they would have whole tribe orgies during the spring equinox. If a woman were to squirt it could essentially flush out all the sperm of other men who finished earlier this giving the male who she was currently engaging with an advantage at fertilizing the egg. Also a man who can last longer and make a woman orgasm, squirting or not, clearly has more stamina and more time to spend having sex, rather than being afraid of predators or other threats, therefore they would be a more viable match for best genetic makeup.

Hopefully I explained that well without sounding like a bozo guy.