Lust

Why do you think they call them "Desperate" Housewives?

There are only two reasons why two human beings engage in the act of procreation. One is the right reason, Procreation. The other is the Mortal Sin of Lust. Remember its your duty to create more people to worship god, not to go around sticking the Lord's equipment into anything that feels good. He just loaned it to you mister and when you die he is going to ask for it back. How are you going to explain pocket pool to the master and creator of the Universe without deserving an eternity in Hell.