"3. Don't be *promiscuous.
Sex is the means by which the race projects itself into the future through children and the family. A lot of pleasure and happiness can come from sex: nature intended it that way so the race would go on. But, misused or abused, it carries with it heavy penalties and punishments: nature seems to have intended it that way also."
This breaks down into one additional precept:
"3-1: Be faithful to your sexual partner."
I, personally, feel that this is a very obvious one. You only have to watch one episode of Cheaters to see how it feels to find out your sexual partner is cheating on you. God forbid it ever actually happens to you.
History, newspaper and television carry floods of instances of violence due to human passions aroused by unfaithfulness. "Guilt" is a mild evil when compared to the monsters of jealousy and vengeance.
Not only do human passions get aroused, but there is also the question of health. Having multiple sexual partners lays you and your partners open to sexually transmitted disease such as AIDs and HIV.
The problems of sexual misbehaver is not new. The powerful religion of Buddhism in India vanished from there in the seventh century. According to it's one historians, the cause was sexual promiscuity in it's monasteries.
The urge of the moment can become the sorrow of a lifetime. Don't allow yourself and those around you to fall into the trap of sexual promiscuity.
"Sex is a big step on the way to happiness and joy. There is nothing wrong with it if it is followed with faithfulness and decency."
*Promiscuous: Casual, random sexual relations.