Imagine you could only have one friend for the rest of your life. If you don’t find one then you will be left alone.

For many, that’s a important decision, so they are always attentive to potential friend candidates. You don’t want to humiliate yourself in front of them, so you shy away. You want to show them that you are good friend candidates, you try to show off. Someone else is a good friend candidates, you feel insecure. Someone gets angry at you because you were apparently showing off without realising it and feel threatened.

Its a competition that your body compels you to participated, and it gets exhausting at time.

Now add “and make babies”, remove being able to verbalize this, and you got sexual desire.

It should be noted do, intensity varies from person to person. Those that have it set too high cause problems to themselves and others.