I have always felt sex was primitive. Animal like. Humans are so developed at this stage that sex seems outdated. Instead of choosing an intellectually suitable mate, humans are likely to choose one who is more attractive. Instead of planned pregnancies we have "happy" ?s. Rarely does a human engage in sex for reproduction. So, unlike the animal kingdom, humans have sex for pleasure... yet wouldn't you think that the most intelligent species of the planet would rise beyond these primitive means of pleasure?