I firmly believe that family should all be having sex with one another. Fathers with daughters and (if they have them) gay sons, mothers with sons and (if they have them) gay daughters. Getting hard and wet for someone is the most ultimate way of saying I love you, and if you love your c******* then when they turn 18 you should be able to show them how much you love them without having to go to prison. And if an off spring happens to come along, thats just more fam to love!!!