In the first place, marriage is a rule that humans have decided on their own, and it is completely different from the innate ``reproductive instinct.'' The point is, humans can't live without having sex. You know what I mean? If you obey the rules of marriage and treat your wife roughly, you'll end up exposing your naked body in front of the camera, cumming with someone else's dick, and getting covered in semen. Is your wife really satisfied?