Open marriage is typically defined as a form of non-monogamy where the couple agrees that each may engage in extramarital sexual relationships. Adultery is defined as sexual intercourse by a married person with someone other than their spouse. In this instance, there is no consent by the other spouse.

Is it legal to have an open marriage?

Open marriage refers to a marriage where both spouses agree to allow sexual relationships for one or both outside the marriage, without considering this to be sexual infidelity. Extra-marital sex is often illegal in jurisdictions where adultery is illegal, regardless of whether the partner(s) have given their consent.

Is an open relationship better than cheating?

People in open relationships have an agreement that having sex or emotional relationships with other people is OK. Plus, while cheating is considered unethical, open relationships — when done correctly — are ethical by nature.