"Remember, [in the Bible] it's adultery only if the woman is already married. It doesn't matter if the man is married. If he is, she may just become another one of his wives, and a man can have sex with other women who aren't his wives, and that's not cheating either, as long as they live with him, because a man is also allowed to have concubines, and a concubine is a sort of sexual servant who serves no other purpose and has no claim to your estate. Your wife may not have a claim to your estate either, because when you die your wife may become your brother's sexual property. That's how the Bible defines marriage! The Bible does not prohibit multiple wives or incest either. In fact, both are promoted. However, when your father dies, your mother does not become your wife, and you can't inherit any of his other wives either, and the reason that the Bible gives for that is because that would be like looking up your father's skirt... So, a man can have multiple wives and a collection of personal harlots, but he can also have sex with his slaves, and that's not cheating either. You've heard of friends with benefits? You can call this your property rights. That's the only way that makes sense, because according to the Bible all women are property, and property doesn't have rights. Now, some people equate having sex with slaves to rape, because the slave doesn't have any choice. But, according to the Bible, women don't have any choice anyway, and rape can be a prelude to matrimony; if you're a Bronze Age Israelite and you see some young cutie walking unescorted, if you like her, you want her, you can have her, even if she doesn't want you. Now, if you rape a married woman, that's a death sentence for both of you (because the Bible is stupid like that). But if she's not promised to someone else, and you rape her and you get caught, you have to pay her father fifty shekels of silver and she's yours. He may not want her back after that, even his own child, because an unmarried woman who wasn't a virgin was considered damaged goods back then, so they had this rule that "if you pop it, you buy it." So your victim becomes your bride and you're stuck together forever, and can never get divorced (so be careful who you rape). There's actually a cheaper [and] easier way to get a bride; if a man takes a wife and decides he doesn't like her, if he can prove she wasn't a virgin (or if he can convince other people that was probably not a virgin), she she will be murdered on her father's doorstep because, according to the god of infinite mercy, that's the moral thing to do. But if she can prove that she was a virgin, then she must remain married forever to the man who hates her, because that's divine wisdom too. That unpleasant arrangement for both of you will also cost you a hundred shekels, whereas you can marry your rape victim for half the price. So, if you're a complete loser, and you can't get any woman who appeals to you by the normal way, just rape whoever you like and she's yours forever."