What you are experiencing is sex drive. Your brain is constantly telling you to have sex, because in times past, when many people didn't reach adult-hood, it was desirable for humans to reproduce as much as possible. We have not evolved as a species at a rate that even compares to a fraction of the rate that our technology has progressed, so your body still wants to reproduce as much as possible. Either wait for it to pass, go have fun with your bad self, or get some action. Choose.
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Once again, an epic mystery has been solved by common sense.