We’ve gotten enough emails on the topic that it’s worth addressing: is it ok for Christians to engage in swinging or wife swapping? (None of the emails we’ve received are suitable for quotation.) I suppose we get these emails because it’s obvious from our blog that Sexy Corte and I are pro-sex and enjoy some kinky stuff that isn’t discussed at church. I’m not sure if the folks who email us are genuinely wondering what the Bible has to say on swinging or if they’re looking for someone to help rationalize existing behavior, but I’m going to give a sincere answer.

Swinging or wife swapping is a sin called adultery, and is never acceptable to God. It doesn’t matter if you, your spouse, and the other couple all consent — God doesn’t consent. The Seventh Commandment is short and to the point:

Exodus 20:14, “You shall not commit adultery.”

Jesus raises the bar set in the Old Testament:

Matthew 5:27-28, “You have heard that it was said, ‘You shall not commit adultery.’ But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart.”

A person might claim, “It’s not adultery if my spouse knows about it and approves.” However, the definition of adultery makes no such distinction, and never has throughout human history.

voluntary sexual intercourse between a married person and someone other than his or her lawful spouse.

The bottom line here is similar to an earlier Q&A on threesomes:

God’s will is that sex should be reserved exclusively for a husband and a wife. So, while there aren’t many limits on what you and your wife can do together, you can’t bring someone else into your sexual relationship. Neither spouse can give the other spouse permission to commit adultery — adultery isn’t just a sin against your spouse, it’s a sin against God. Permission from your spouse doesn’t make adultery acceptable to God. It is never acceptable to have sex outside of your marriage. See also: Proverbs 5, “be intoxicated always in her love”Hebrews 13:4, and Proverbs 7.

If your marriage is happy, swinging won’t strengthen it; if your marriage is unhappy, wife swapping won’t fix any of the underlying problems. We strongly exhort every married couple to keep their sex life exclusive to themselves. This is what God commands through the Bible, and worldly experience says the same thing.

See also: Are There Any Sexual Limits or Boundaries in a Christian Marriage?

Please use the contact pages for Sexy Corte and El Fury to send us your questions. We will only share your question if you give us permission, and we’ll never reveal your name or any other identifying information. You can ask questions anonymously, or use a free anonymous email server like Mailinator.