Anal sex, the penis entering the woman's anus, is dangerous. We do not recommend anal sex. Objective studies have demonstrated anal sex rarely results in orgasm for the wife and often results in pain, discomfort, infection and bleeding. Before you go making anal demands on your woman, realize what big enough to get work done but small enough to do its job discreetly. Get the goods on joining the 'Backdoor Betty' club. Women who don't enjoy anal sex, she says, are probably doing it wrong. . "Every woman has the ability to orgasm, physiologically, because the space between her.