For example, there's the injunction to not sleep with your daughter-in-law. Since you can't have a daughter-in-law without having a son, the implication is that you've already had sex with your son's mother. (Granted, you could be a widower, but that's not the "feel" I get from this passage.)
Another example is the prohibition against sleeping with a woman and her daughter. What? At the same time, as in a threesome? Or perhaps alternating date nights? Or first one, then the other after the first dies?
A quite clear example is the prohibition against sleeping with two women who are sisters (while they both live).
This passage disturbs somewhat my conception of being a "good Christian boy". But Jesus brings us back to the Creation in places such as Matthew 19:
He who created them in the beginning made them male and female....
When asked why Moses was more lenient, his response was harsh against manly desires:
Moses permitted you to divorce your wives because of the hardness of your hearts. But it was not like that from the beginning. And I tell you, whoever divorces his wife, except for sexual immorality, and marries another, commits adultery.
When his disciples then challenged him, accusing him of being unrealistic, Jesus essentially replied, "Tough. Suck it up. Either live as an eunuch, or be faithful to your wife."
His disciples said to Him, "If the relationship of a man with his wife is like this, it's better not to marry!"
But He told them,
"Not everyone can accept this saying, but only those it has been given to. For there are eunuchs who were born that way from their mother's womb, there are eunuchs who were made by men, and there are eunuchs who have made themselves that way because of the kingdom of heaven. Let anyone accept this who can.
And Paul adds his two cents' worth in 1 Corinthians 6:16:
Do you not know that anyone joined to a prostitute is one body with her? For it says, The two will become one flesh.So whereas Moses may have expected the men in his culture to sleep around, Jesus expects better of us.
With my "spirit eyes" I can see that Jesus' way is the better way. But my "carnal eyes" are attracted to Moses' apparent viewpoint.
Stupid carnal nature.