Swinging
Swinging is recreational, consensual partner-swapping or shared sexual activity, usually enjoyed by couples within boundaries agreed in advance.

Swinging is the recreational side of consensual non-monogamy: couples — and sometimes singles — who choose to share sexual experiences with others while keeping their own relationship central. It ranges from soft swap, which stops short of intercourse, to full swap, and can take place in private homes, at organised parties, or in dedicated lifestyle clubs.
What defines healthy swinging is not what people do but how they do it: open communication, boundaries set in advance, and the freedom for either partner to slow down or stop at any moment. Many couples describe it as something they do together — a shared adventure rather than a licence to drift apart.
Etiquette matters. A "no" is always respected without pressure or sulking, discretion protects everyone's privacy, and consent is confirmed rather than assumed. Most couples ease in gradually, often starting with conversation, events or soft swap before deciding how far they wish to go.
Frequently asked
No — swinging is openly agreed between partners, while cheating is by definition secret and non-consensual.
Never. Many couples attend simply to enjoy the atmosphere; participation is always optional.