Gay Talese said this quote

While the moral force of Judeo-Christian tradition and the law have sought to purify the penis, and to restrict its seed to the sanctified institution of matrimony, the penis is not by nature a monogamous organ. It knows no moral code. It was designed by nature for waste, it craves variety, and nothing less than castration will eliminate the allure of prostitution, fornication adultery, or pornography.