So you’ve been thinking about it. Maybe for weeks, maybe for years. Maybe you’ve already had one tipsy conversation with your partner that ended in “we’ll talk about it later” and then never did. Or maybe you’re at the very beginning and the words “non-monogamy” still feel too big to say out loud.
Wherever you’re at: opening up a relationship is thrilling, terrifying, and weirdly intimate – sometimes all at once. Done thoughtfully, it can deepen what you already have. Done badly, it’s a fast-track to couples therapy or divorce. Sometimes both.
We’re going to be honest with you: most couples that try to open up don’t end up in a happy place. Not because non-monogamy is the problem, but because they rush, they assume, they negotiate from a place of pressure, or they treat the whole thing like a single conversation rather than an ongoing one.
Here are five things that will dramatically improve your odds.
1. Start with yourself before you start with your partner
Before you say a single word to your partner, sit with yourself for a while. Like, actually sit. Not “think about it while doing the dishes” sit, but properly think about what’s drawing you toward this.
Ask yourself:
- What do I actually want? Sex with other people? Romance with other people? Freedom from the idea of “forever-exclusive”? All three?
- Is this about something I’m missing, or something I want to add?
- If my partner said yes tomorrow, what would I want to do first? What would I dread?
- Could I handle my partner doing the same things I want to do? Honestly?
That last one is the gut-check most people skip. Non-monogamy almost always goes both ways. If your fantasy involves you having sex with three new women while your wife knits at home, you’re not actually looking for non-monogamy – you’re looking to cheat with permission. Those couples blow up fast.
If you’re still not sure non-monogamy is for you at all, start here: Five Signs Non-Monogamy Is Right for You.
2. Talk with your partner – properly
This is the big one. Do NOT wing this conversation.
Walk into it with an idea, a plan, and a mental list of possible reactions. Pick a calm time when you’re both fed, not stressed, and have hours – not minutes – to talk. Sunday morning over coffee, not Tuesday night between Netflix and bed.
Before you bring it up, do one more thing: imagine the conversation from their side. Why would they want to open up your relationship? What’s in it for them – genuinely?
- If the only motivation you can come up with is “because they want to make me happy”, you’re going to fail.
- If you can’t imagine it from their perspective at all, you’re going to fail.
- If you walk in without a plan for “hell no”, you’re going to fail.
Expect feelings. Lots of them. Sadness, jealousy, anger, hurt, panic, maybe even relief. Expect questions. Maybe yelling. Maybe long silences. Maybe “Are you saying I’m not enough for you?”. That last one is the most important to prepare for – because culture has trained all of us to read “I want more” as “you’re not enough”, even when it’s nothing like that.
Make it crystal clear that this isn’t you pulling away. This is you wanting to grow together. Reassure in words and reassure in actions. Your relationship doesn’t suddenly get less interesting because you’re talking about expanding it – often the opposite.
You’re also probably not having just one talk. If your partner doesn’t shut it down on the spot, you’ll likely be talking about this over days, weeks, sometimes months. Some of those talks will be productive. Some will be arguments. Some will be tearful 1:00 AM conversations on the kitchen floor. Pour the same care into all of them – if you bring your A-game to the easy ones and your worst self to the hard ones, you’ll undo your own work in a single fight.
And give it time. You may have had months or years to sit with this idea. Your partner just got handed it five minutes ago. Be patient.
If threesomes are specifically what’s on your wish list, there are dedicated guides for that conversation:
- 5 Ways to Talk to Your Partner About Having a Threesome
- How to Convince Your Wife or Girlfriend to Have a Threesome
3. Figure out what “open” actually means to you
Here’s a thing nobody tells you: “open relationship” is one of the vaguest phrases in modern dating.
Ask 100 couples in open-style relationships what theirs looks like, and you’ll get 100 different answers. Some only play together as a couple. Some allow casual sex with singles but no dating. Some are fully poly, with multiple romantic partners and shared calendars that look like NASA mission control. Some have abandoned relationship structures entirely and call themselves relationship anarchists.
None of these are wrong. But you need to figure out which version you’re actually signing up for.
Some questions worth working through together:
- Are we playing together, apart, or both?
- One-time hookups, ongoing partners, or full second relationships?
- How much do we tell each other? Names, details, photos, nothing at all?
- Do we need each other’s explicit consent for each new partner, or is it more “tell me afterwards”?
- Overnight stays – yes or no?
- How are we going to handle sexual health and STI testing?
If that list feels overwhelming, don’t try to answer it in one sitting. You won’t. We didn’t.
The trick is to start with desires, not boundaries. Each of you writes your individual desires down separately, you swap lists, and then you negotiate. Boundaries built on top of desires you’ve actually voiced are way more stable than boundaries you set blind.
We have whole posts dedicated to this part – honestly the most useful reading you can do at this stage:
- How to Negotiate Boundaries in an Open Relationship
- How to Handle Imbalance in an Open Relationship
- What Is Cheating in an Open Style Relationship?
The cheating one is the one people assume they don’t need to read and absolutely do. Open relationships do not eliminate cheating – they just change what it looks like.
4. Take baby steps – then talk about how they felt
You don’t have to be perfect at this on day one. You don’t have to be perfect at it on year one either. (We’re 20+ years into this and we still get it wrong sometimes.)
The trick is to take the smallest step that moves you both toward what you want, then stop and check in. Then take the next smallest step. Then check in again.
Some good starter experiments:
- A long, slow conversation about a fantasy one of you has never said out loud
- Going to a swingers club as observers, with zero pressure to do anything
- Setting up a couple’s dating profile but not messaging anyone yet
- Going on a “date with no expectations” with someone you both already know and find attractive
Expect some of these to go sideways. They will. Bear in mind that opening up is hard even for experienced couples. It’s surprisingly common for one of you to think you communicated a boundary clearly, and the other to walk away with a completely different understanding of what you just agreed to.
That’s not failure. That’s the entire point of starting small – you catch the mismatches before they become a crisis.
What matters most is the conversation after the experiment:
- What felt good?
- What was harder than you expected?
- What needs adjusting?
- Do we want to do it again – or try something different?
If you’ve reached the stage where you’re actually meeting new people, these are worth bookmarking:
- How to Safely Meet New Sex Partners
- How to Check for Chemistry With New Sex Partners
- Best Ice Breakers for Sex With New Partners
5. Expect feelings – and keep it playful
Jealousy, excitement, insecurity, joy, possessiveness, compersion, awkwardness, horniness – sometimes all in the same evening. That’s just Tuesday in a new open-style relationship.
Feeling jealous doesn’t mean you’re failing. It usually just means you need reassurance, clarity, or a bit more connection with your primary. Bring it up early instead of letting it stew. The thing about jealousy is that it almost never disappears on its own – and it almost always becomes manageable once it’s been said out loud.
Sexual health worries are real too, especially as you move toward group settings. We’ve covered both the medical risk and the awkward-physical-stuff side:
And here’s the thing that’s easy to forget when you’re knee-deep in serious conversations: this is supposed to be fun.
The whole reason to do any of this is because you want more pleasure, more connection, and more aliveness in your life. If every conversation is heavy and every experiment feels anxious, you’ve drifted off course somewhere. Flirt with each other again. Send each other ridiculous fantasies over text. Make a dirty Christmas wishlist. Try a sex board game like Loveretto. Tease each other about the people you’re attracted to, instead of pretending not to notice them.
A non-monogamous relationship that’s all talk and no play is just a long, exhausting meeting about sex you’re not having.
The bottom line
Opening your relationship is not a single decision. It’s a long, occasionally messy, frequently hot, ongoing conversation between two people (or more) who love each other enough to renegotiate the rules.
If you:
- Reflect honestly on what you actually want
- Communicate clearly and often
- Build boundaries around desires rather than fear
- Take small steps and talk about them afterwards
- Stay curious about each other’s feelings
…you’ve got a real shot at this.
You don’t have to get it perfect. You just have to stay open with each other.
We’re rooting for you..
