Swinging

Swinging is a form of consensual non-monogamy in which established couples — and a smaller number of carefully-vetted singles — agree that recreational sexual connection with other adults is an open, shared part of their relationship. The defining feature is that the activity is usually recreational and social rather than romantic: most swingers keep their primary romantic-partnership identity intact and explicitly off the table, which is the clearest line between swinging and polyamory.

The community has its own dedicated infrastructure built up over more than half a century: on-premise and off-premise clubs, house parties, members-only resorts and cruises, large annual conventions, and an etiquette with real norms around consent, vetting, and discretion. Couples typically enter at a chosen comfort level — soft-swap or full-swap, same-room or separate-room — and adjust as trust accumulates. The community increasingly prefers the term the LifeStyle to swinging, and swinger to describe participants.

Healthy swinging looks like other healthy non-monogamy: both partners genuinely want it, agreements are revisited rather than assumed, barrier and testing practices are observed, and other participants are treated as full people who can say no at any point. Unhealthy swinging looks like its mirror image — one partner driving against the other's real consent, or club attendance used to avoid hard conversations at home.