Compersion
Compersion is the warm feeling of joy at seeing your partner experience pleasure or connection with someone else — often described as the opposite of jealousy.

Compersion is the warm sense of joy a person feels when their partner experiences pleasure, desire or connection with someone else. Often called the opposite of jealousy, it is one of the emotional cornerstones that makes ethical non-monogamy sustainable.
Compersion is not the absence of insecurity — it is something many people cultivate over time through trust, communication and positive shared experiences. For some it comes naturally; for others it grows alongside reassurance and clear boundaries.
In swinging and polyamory alike, compersion turns a partner's enjoyment into a source of mutual happiness rather than threat. Couples often nurture it by debriefing afterward, celebrating good experiences together, and keeping their own bond the priority.
Frequently asked
Yes. Many people develop it gradually as trust and good experiences accumulate, even if jealousy appears first.
Not at all — it is normal. The aim is to communicate it honestly rather than suppress it.