Soft swap
Also: soft swing, soft play
A LifeStyle comfort level in which couples engage in some sexual activity with other partners — typically kissing, touching, and oral — while reserving penetrative sex for their own partner.
Soft swap names a negotiated boundary inside the LifeStyle: a couple plays with others, but stops short of penetrative intercourse with anyone outside the couple. What counts as soft varies between couples and is worth stating explicitly — for some it includes oral sex, for others only kissing and touching. The term exists precisely so couples can communicate a comfort level quickly in a social setting without re-negotiating from scratch each time.
Many couples begin in the LifeStyle as soft-swap. It functions as a lower-stakes entry point that lets both partners learn how they actually feel — watching, being watched, being touched by someone new — before deciding whether full-swap is something they want. A large share of couples remain soft-swap indefinitely and consider it their settled preference, not a waystation.
As with every LifeStyle boundary, the agreement is only as good as the conversation behind it. Soft-swap works when both partners genuinely hold the same line, can call a stop at any moment without penalty, and revisit the boundary deliberately rather than letting it drift in the heat of an evening.