Polyamory Explained: Open Relationships, Closed Networks, Kitchen-Table, and Relationship Anarchy

There is no single way to practice polyamory. If you have started looking into it, you have probably already noticed that the word itself covers a lot of ground, and the people within it have built very different kinds of relationships with one another. Some share homes and bank accounts with multiple partners. Others keep their lives mostly separate. Some want everyone in their circle to know each other well, while others prefer that their partners never meet.

What ties all of it together is honesty, consent, and care. But the actual structure of the relationship, how it is organized day to day, partner to partner, varies depending on what people need and what they agree to together. About 4% to 5% of people in the United States practice polyamory, according to research published in Frontiers in Psychology with Kinsey Institute-affiliated researchers, and roughly 1 in 6 people say they want to. A 2023 YouGov survey found that 34% of Americans describe their ideal relationship as something other than completely monogamous. So the conversation around these models is worth having, because more people are having it than you might think.

Here are the most common polyamorous relationship models and how they differ from each other.

Hierarchical Polyamory

In hierarchical polyamory, relationships are ranked. You might hear terms like primary, secondary, and tertiary. A primary partner is usually someone you share long-term plans with, maybe a home or finances. Secondary and tertiary partners tend to have less involvement in those kinds of decisions.

This model often comes with specific rules between levels. A primary partner might set limits on how much time a secondary partner gets, or what kinds of interactions are acceptable. Some couples also use veto power, meaning one partner can end another's relationship if it causes discomfort. Integrative Psych notes that people in primary relationships may set very specific rules for their secondary or tertiary connections, including limits on intimacy and time.

Non-Hierarchical Polyamory

Sometimes called egalitarian polyamory, this model moves in a very different direction. No one partner holds more weight than another. Everyone is considered when big decisions come up, and time, energy, and emotional investment are distributed as fairly as possible. The Affirmative Couch describes it as a structure where every partner may go on vacations with the person, and there is a general belief that one partner does not hold importance over another.

There is no veto power here. Each relationship is treated with equal seriousness, even if the relationships look different from one another in practice. Research suggests this model, along with kitchen table polyamory, is becoming more common, partly because it allows for a more balanced way of giving love and attention.

Kitchen Table Polyamory

The name comes from the idea that everyone involved could sit comfortably around a kitchen table together. Partners know each other, spend time together, and often build friendships outside of the person they share in common. There is a base of communication and genuine connection between everyone in the group.

This works well in polyamorous families where people share parenting or domestic life, because it builds a sense of community within the relationship network, often called a polycule.

Parallel Polyamory

If kitchen table polyamory is one end of the social spectrum, parallel polyamory sits at the other. In this model, partners know about each other but do not interact. Each relationship runs on its own track. You may be fully aware that your partner has another partner, but you might never meet that person and have no desire to.

This suits people who want deep emotional connections without the social complexity of blending everyone's worlds. Minka Guides describes it as an approach where the levels of contact between metamours (your partner's other partners) range from very little to none at all.

Garden Party Polyamory

This one sits somewhere between the kitchen table and parallel. You might see each other at a birthday party or a holiday gathering, but you are not deeply woven into each other's daily lives. As Discovering Polyamory puts it, members of the polycule will all know each other and enjoy spending time together, but not mingle their lives the same way they would in a kitchen table setup. It respects both sociability and personal boundaries without forcing either.

Solo Polyamory

Solo polyamory centers on the person rather than the couple. Someone practicing solo polyamory might have several committed relationships but live alone, keep their finances separate, and have no interest in building a shared household with anyone. The Affirmative Couch describes solo polyamorists as people who do not have any desire to be considered part of a coupled relationship. Some may move between partners' homes through the year or prefer a more nomadic life.

This is not a sign of avoidance or lack of trust. It is a deliberate choice to maintain autonomy while still being fully committed to partners in the ways that matter to them.

Relationship Anarchy

Relationship anarchy takes the philosophy of self-determination further than most models. It applies anarchist principles to interpersonal connections, with values like autonomy, anti-hierarchy, and anti-normativity. There are no assumptions about what a relationship should look like. Labels, rules, and roles are co-created between people or discarded entirely.

One of the more interesting parts of this model is that it dissolves the hard line between platonic friendship and romantic love. Relationship anarchists reject the idea that romance should always be prioritized over friendship. And notably, this framework can include people who are monogamous, as long as they embrace the philosophy of questioning convention and self-determination.

Polyfidelity

Polyfidelity brings exclusivity into a group setting. Three or more people agree to be romantically and sexually involved only with each other, with no outside connections. As Discovering Polyamory puts it, many people still value exclusivity, but not with only 1 person. Everyone in the group is equal, and the group is closed. This creates a strong sense of closeness and security.

Triads and Quads

A triad involves 3 people who are all romantically connected to one another. It can be closed or open. The key here, as Attuned Therapy points out, is that a triad is not a couple with an extra person. All 3 people have an equal say, and that can be difficult to maintain, especially if a 3rd person joins an existing couple.

A quad involves 4 people. Sometimes it forms when 2 couples connect romantically, though it can also grow organically. All 4 may be romantically involved with each other, or the structure might involve 2 interconnected couples where all members are at least friends.

The Vee Structure

In a vee, 3 people are involved, but only 1 person, the hinge, is romantically connected to the other 2. The 2 people who are not dating each other are called metamours. They may be close friends, casual acquaintances, or not know each other at all. The hinge carries a real emotional responsibility in keeping both relationships healthy and balanced.

Comet Partnerships

A comet describes a partner you share something deep with but see rarely, often because of distance or other commitments. You might connect in person once or twice a year and stay less in touch between visits, then pick right back up when you are together again. It honors intensity without requiring constant proximity.

What a Polycule Actually Means

Polycule is the word for the full interconnected network of people within a polyamorous relationship system. It is similar to a molecule, where each person is an atom connected through various bonds. When groups grow beyond 4 people, most use the word polycule or constellation rather than trying to name every specific configuration.

What Research Tells Us

About 51% of people practicing polyamory report having open communication about boundaries, compared to 34% in monogamous relationships. And 67% of people in polyamorous relationships say they do not feel jealousy, or feel it only occasionally. Mental health outcomes between polyamorous and monogamous people are comparable, and research totaling around 15,000 participants has found no consistent link between consensual non-monogamy and income, education, religion, geography, or political leanings.

Still, stigma persists. A 2025 survey found that 61% of respondents reported facing discrimination tied to their nonmonogamous identity. Cities are beginning to respond. Somerville, Massachusetts, became the first American city to recognize polyamorous domestic partnerships in 2020, and since then, cities including Cambridge, Arlington, Berkeley, Oakland, and Olympia have passed similar protections. The Chosen Family Law Center, led by Diana Adams, has been instrumental in crafting the legal language behind many of these policies.

Picking What Fits

None of these models asks you to be everything at once. They are frameworks, built by the people inside them, and they work best when everyone involved has a say in how things run. If you are exploring polyamory or rethinking what your relationships could look like, the most useful thing you can do is learn what exists and ask yourself what actually fits your life.