Unicorn hunting: a respectful guide for couples

If you are a couple and you have typed "unicorn hunting" into a search bar, you are probably curious about a very specific idea: inviting one person, usually a bisexual woman, to share a connection with both of you. The idea is common in the lifestyle and in ethical non-monogamy circles, and so is the criticism of it. This guide is written for couples. It explains what the term means, why it has such a bad reputation, and how to approach the whole thing in a way that treats the third person as what they are: an adult with their own wants, limits and life.

What "unicorn" and "unicorn hunting" mean

In the vocabulary of the scene, a unicorn is a person who is willing to join an existing couple, either in a casual threesome or as part of a triad. The word is most often applied to single bisexual women who date heterosexual couples, but a unicorn can be of any sexuality or relationship status. The name is a joke about rarity, and that joke is part of the problem: it turns a person into a mythical object.

Unicorn hunting is what happens when a couple goes looking for that person, often with a fixed list of requirements. Our lifestyle glossary covers the surrounding terms (soft swap, full swap, triad, closed or open). A psychologist at SHIPS Psychology in Melbourne describes the typical setup as a heterosexual, cisgender couple looking specifically for a bisexual, cisgender woman who is open to a relationship with both of them.

Why the practice has a bad reputation

The criticism is not about threesomes. It is about the structure around them. Writers and clinicians who have looked at the pattern keep pointing to the same problems:

• The couple speaks as "we". Presenting two people as a single unit sets up a power imbalance against the individual who arrives alone.
• Rules are written before the third person exists. When every limit has been negotiated in advance, there is no room for the newcomer's own needs.
• The invitation can be withdrawn. Inviting someone "into" a relationship implies the couple decides when the invitation ends. Some couples formalise this as a veto, meaning the connection can be ended at any time for any reason.
• Package-deal terms. In some cases the third person must date both partners or neither, or must not date anyone else.
• Use as a repair tool. Several commentators describe unicorn hunting as a last-ditch attempt to fix a struggling relationship, which hands the third person a job nobody asked them to do.
• Erasure. The same SHIPS Psychology article notes that the framing can exclude trans and non-binary people and reduce a person to the purpose they serve the couple.

The Swaddle, an Indian media outlet, argued in 2020 that couples who pose as a single queer woman on dating apps and only later bring in the male partner are a clear example of how this goes wrong. A consenting one-man-two-women triad is not wrong in itself, the piece concludes, but one built on objectification is not a healthy base.

Before you look: work on the two of you

The most repeated advice in all these sources is boring and effective: do the work first. If a relationship has unresolved jealousy, a loss of desire or trust problems, a third person will not solve them and may suffer for them. Start with the conversation described in our guide to bringing up swinging with your partner, and make sure both of you want this for your own reasons, not to please the other.

A useful exercise, adapted from the questions suggested by SHIPS Psychology, is to answer separately and then compare:

1. What do I want and need, apart from what we have as a couple?
2. What would I bring to the life of another person, beyond the role we have in mind?
3. Are my expectations reasonable, or do they mostly protect our relationship and calm my fears?
4. Am I leaving room for each person involved to say what they need?

Agreements that work for everyone

Think of agreements as something negotiated with the third person, not handed to them. A few practical principles:

• Say what you are offering, honestly. A one-off encounter, a casual ongoing connection or a romantic triad are different things. Do not use the vague language of "seeing where it goes" to hide a fixed plan.
• Be explicit that "no" and "stop" are always valid, for everyone, at any point. This applies to the third person and to each of you. Our guide to consent, boundaries and signals has concrete wording.
• Avoid veto power over the third person. If a limit is needed, explain it and make it a conversation, not a switch.
• Do not require exclusivity or equal treatment by default. The person may have other partners and their own relationship to each of you.
• Plan time for between-care. The SHIPS Psychology article describes it as an intentional space, separate from intimate moments, where each person and each relationship can share needs. Its author says it reduces couple's privilege and lets the terms be updated.
• Include a plan for jealousy. Decide beforehand what happens if someone feels overwhelmed, for example a pause word that stops everything without needing to explain.

Meeting someone: etiquette

Be a person first. A profile that says "couple seeks female" with a long list of demands tends to be read as a red flag. Introduce both partners early, let the other person talk to each of you and to each of you separately, and do not run a conversation like an interview. Meet in a public place, and let them leave without a debate. Never pressure someone to move faster than they want. If you are joining a lifestyle event, remember that the atmosphere is not consent: talk first.

Health and safety

This guide does not give medical advice. For sexual health, follow the recommendations of official sources. The US Centers for Disease Control and Prevention lists three basics for preventing STIs: use condoms correctly every time, get tested regularly and share results with your partners, and get vaccinated where recommended (for example for hepatitis B and HPV). Our sexual health guide points to the WHO and CDC pages in more detail. Share your testing approach with the third person before anything happens, not after.

What research says about couples who try

Evidence on this topic is thin. A 2026 qualitative study in the journal Psychology & Sexuality surveyed 80 people who were or had been part of a couple seeking a third; we summarise it in our article on the unicorn hunting study. Its main takeaway for couples is double-edged: many said the search brought them closer, but few mentioned the newcomer's own feelings.

Frequently asked questions

Is it wrong to look for a third person as a couple?

No source we read says that wanting a third person is wrong. The criticism is aimed at how couples go about it: rigid rules, unequal treatment and treating the person as an accessory.

Does a unicorn have to be a woman?

No. The term is most often used for bisexual women, but anyone of any gender or sexuality can join a couple. Assuming otherwise excludes people.

What if one of us is less enthusiastic?

Then stop and talk. Reluctant agreement to please a partner is one of the main red flags in guides written for unicorns.

Can a threesome fix a relationship?

Commentators cited here argue that it cannot, and that expecting it to puts emotional labour on a person who owes you nothing. Work on the relationship first, perhaps with a therapist.

Sources (consulted 7 November 2026)

• SHIPS Psychology (Melbourne), Unicorn Hunting
• The Swaddle, Couples looking for bisexual girlfriends, aka unicorn hunters, often commodify queer women
• Polyphilia, So you want to be a unicorn: a guide to dating polyamorous couples
• US CDC, STI prevention