I can't forgive infidelity... I don't want to see my husband having sex with another woman. This is the emotion of an ordinary wife. I don't even want to imagine my wife writhing and gasping for breath under someone else's body, reaching her climax. This is the emotion of an ordinary husband. There are couples in the world who enjoy swapping partners and having sex. While keeping the love intact, they simply hand over their bodies to others and delight in that spectacle.
