Sex could kill you. Do you know what the human body goes through when you have sex? Pupils dilate, arteries constrict, core temperature rises, heart races, blood pressure skyrockets, respiration becomes rapid and shallow, the brain fires bursts of electrical impulses from nowhere to nowhere, and secretions spit out of every gland, and the muscles tense and spasm like you're lifting three times your body weight. It's violent, it's ugly and it's messy, and if God hadn't made it unbelievably fun, the human race would have died out eons ago. Men are lucky they can only have one orgasm. Do you know that women can have an hour long orgasm?