Sex's place in life as it is understood in the western culture is a feature of the Matrix. It is false. That is not how it works.
Discussion
Calm down is just a meme
I mean, if you take a self-concious man and woman (extremely rare in any "civilized" world in the last 100-200 years, almost extinct), the man will want sex more than the children that come out of it, but the woman will want children more. If you think about it in detail and draw conclusions about relationship between genders, you will understand that everything what so called adults of modern times believe they know about sex's place in our life is false.
Humans are not so much different from animals as they think.
Deviation of a thought: In a much broader sense, nothing to do with sex, humans think that plants are not like humans nor animals by any measure. They are even more wrong there.