Swinging explained
What Is Swinging? The Plain-Words Answer
Swinging is when partners agree to have sex with other people, together, and with everyone's consent.
Get the meaning in a minute
Swinging is something partners do together. They agree in advance that they would like to have sex with other people, they decide who and how far, and they carry it out in the open, often at the same party and sometimes in the same room.
The word stretches a long way. It covers a partner swap for an evening, a threesome, a foursome, or nothing more than flirting hard and going home together. Singles take part too, as guests at a party or as the third person at a meet.
That matches the American Psychological Association's Division 44, which counts swinging as a form of consensual non-monogamy: partners who stay emotionally exclusive to each other and seek other sexual partners together.
Soft swap or full swap: you set the pace
Most of what people mean by swinging comes down to how far everyone has agreed to go. Two terms cover it.
Soft swap
Kissing, touching and other intimacy with someone new, then a firm line before full sex. Couples often start here because the line is easy to see and easy to hold.
Full swap
Going all the way with someone other than your partner, with your partner's yes. Even then there are limits to settle: who, where, which protection, and whether you stay in one room.
Nobody sets that line for you. A Psychology Today article on soft swinging points out that no governing body exists, so the boundaries sit wherever the couple agrees to put them. Agree yours at home, long before anyone else is involved. Our guide to swinging terms explains the rest of the vocabulary, from same room to unicorn.
Not cheating, not polyamory: where swinging sits
People mix these up all the time. What separates them is who knows what, and what the arrangement is for.
| Arrangement | How it works | What marks it out |
|---|---|---|
| Swinging | Partners play with others together, at a party, club or meet. | Shared and planned. Both agree, and usually both are there. |
| Open arrangement | One or both partners see other people, often separately. | Agreed rules on who, how often and what you tell each other. |
| Polyamory | More than one ongoing emotional and sexual connection at once. | Everyone knows, and the connections matter as much as the sex. |
| Cheating | One partner steps outside the pair in secret. | No consent. That is the line between this and the other three. |
Consensual non-monogamy is the umbrella over the first three. Division 44 stresses that it is not to be confused with infidelity, and the first word of the name is the whole difference. ABC News in Australia adds that swingers tend not to get emotionally involved with, or date, people outside the main pair, which sets them apart from polyamory.
What actually happens on a night out
Less than you might imagine, and more slowly. A club or party is a night out first.
- The door. You usually show ID, hear the house rules and sort out your coat. Hosts and staff are used to nervous newcomers.
- The bar. Drinks, music, a dance, a lot of talking. You find out who you like and who likes you.
- The click. If you hit it off with another couple, you say what you would enjoy and what you wouldn't, in ordinary words.
- The choice. Where a venue has play areas, they are separate rooms you enter by choice. Some pairs go through, some swap numbers for another night, and some go home with a good story and nothing more.
Clubs and parties run differently, so read about swingers clubs and swingers parties before you pick one, then the swinger etiquette guide for what to do and what to skip.
Who swings, and how common it really is
Most surveys measure the wider category, not swinging itself. Each figure below names who ran the survey and who was asked.
- Haupert and colleagues, a team that included researchers at the Kinsey Institute at Indiana University, reported in the Journal of Sex & Marital Therapy in 2017 that more than a fifth of single American adults had practised consensual non-monogamy at some point.
- In February 2023 YouGov asked 1,000 American adults about sex outside the main pair, and one in eight (12%) had done it with their primary partner's permission.
- In July 2026, YouGov's tracker on open arrangements found that 4% of British adults had been in one and 2% were in one at the time, while 9% said they would be open to one.
- Fairbrother, Hart and Fairbrother (Journal of Sex Research, 2019) surveyed a nationally representative sample of 2,003 Canadian adults: a fifth had been in an open arrangement before, and 12% called it their ideal.
- Australia's national sex survey (Richters and colleagues, Sexual Health, 2014) interviewed 20,094 people in 2012 and 2013. Fewer than 3% practised swinging and fewer than 3% practised group sex, and those figures are now over ten years old.
- Anderson and colleagues (Journal of Sex Research, 2025), led from La Trobe University, combined 35 studies covering more than 24,000 people. They concluded that people in consensually non-monogamous arrangements are as satisfied with their partners and their sex lives as monogamous people.
Of the more than 7,500 members on Swingers Lounge, more than 2,100 are couples, and 33% are aged 55 or over. Couples can start with our page on swinging couples.
Swinging questions, answered straight
What does swinging mean?
Swinging means partners agreeing, together, to have sex with other people, with everyone's consent. That can be a partner swap, a threesome, or playing in the same room as another couple. The people who do it are swingers, and the scene calls itself the lifestyle.
What is the difference between a soft swap and a full swap?
A soft swap stops short of full sex, so it means kissing, touching and other intimacy with someone new. A full swap goes all the way. Neither is better. Couples choose the level that suits them, can change it later, and agree it together beforehand.
Is swinging cheating?
Not when everyone knows and agrees. Cheating means stepping outside the pair in secret, while swinging is planned, open and consensual. Researchers keep the two apart for exactly that reason. If one partner is only going along to keep the peace, it isn't swinging, and it needs a conversation.
Do you have to have sex at a swingers club or party?
No. Nobody is obliged to play, and plenty of guests spend a whole evening at the bar. A no ends the conversation. If a first visit is a drink, a dance and a chat with people you like, that counts as a good night.
How many people are swingers?
Nobody knows for certain, because most surveys ask about consensual non-monogamy as a whole. The closest figure for swinging itself comes from Australia's national sex survey of 20,094 people in 2012 and 2013, where fewer than 3% practised swinging and fewer than 3% practised group sex.
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