Ethical non-monogamy

What it means

ENM covers polyamory, open relationships, swinging, relationship anarchy and more. What makes it 'ethical' or 'consensual' is that everyone involved knows and agrees — it's the opposite of cheating. Studies suggest a notable minority of adults have tried some form of consensual non-monogamy.

Where the term comes from

The phrase spread from the late 1990s, helped by books such as The Ethical Slut (1997). 'Consensual non-monogamy' (CNM) is the term often used in research.

How it can look in real life

• A married couple who each date others with agreed rules.
• A group of three people in a committed relationship together.
• Someone single who dates multiple people and tells each of them.

These are examples, not requirements. People who use the same word can have very different histories, relationships and preferences — and nobody needs a particular amount of experience to know what fits.

Common myths

• ENM is just cheating with permission.
• People do it because their relationship is failing.
• There's no commitment — many ENM relationships are deeply committed.

Talking about it with a partner

Talk about agreements, veto power (or not), time, disclosure, and what happens if feelings get complicated. Jealousy is normal; so is compersion — feeling happy for a partner's other connection.

It helps to talk about specifics — what closeness, touch, exclusivity and privacy mean to each of you — rather than expecting a label to answer those questions. Either person can decide something isn't right for them, and nobody owes intimacy to keep a relationship going.

Sexual-health notes

• Agree on safer-sex rules explicitly: who uses barriers, for what, and how often everyone tests. Share results honestly and update agreements when anything changes.
• Regular STI testing (often every 3–6 months for people with multiple partners) keeps everyone informed.

Health advice should follow your body and the activities you actually do, not a label. A clinician can help with testing, vaccines and barriers — and you deserve care that doesn't judge.