Experts aren't entirely sure why humans evolved orgasms

"Did you get there?" While the answer is more complex than it may seem, one of the fundamental questions about the orgasm is why humans evolved this trait in the first place, especially in women. An orgasm feels good, so a little reward during or after sexual reproduction would presumably encourage mating, increasing the chances of passing down one's genes. For example, one 2009 study in the International Journal of Impotence Research gave a handful of healthy male volunteers a drug called silodosin, which made it so they couldn't ejaculate but still orgasm. "The uterine upsuck theory was the idea that when women had an orgasm, the cervix would dip into the seminal pool that was in the vagina, and therefore, suck the semen up.