A tendecy to become aroused instead of jealous when one's partner has sex with another person or a third partner; also the person having such interest.
He has a compersive reaction to seeing his wife getting laid.
by missioncontrol August 3, 2008
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A feeling of joy when a loved one invests in and takes pleasure from another romantic or sexual relationship.

Commentary: Compersion can be thought of as the opposite of "jealousy;" it is a positive emotional reaction to a loved one's other relationship. The term was coined by the Kerista Commune. It differs from candaulism in that compersion does not specifically refer to joy regarding the sexual activity of one's partner, but refers instead to joy at the relationship with another romantic and/or sexual partner. It is analagous to the feeling of joy a parent feels when their children marry or that best friends feel for each other when they are happy in a romantic relationship.
I feel compersion when I see my husband come home happy from spending time with his girlfriend. His happiness brings me happiness
by Joreth April 9, 2010
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Often a term used among polyamorous (openly nonmonogamous) people. Often called the antonym of jealousy. Seeing your partner/s get a crush on, hook up with, fall in love with, or in any other way romantically bond with other people, and feeling deep happiness, joy, and love for them.
"You're in love with Parker, don't you feel jealous that he's started dating Emily?"
"Actually, no, I feel compersion. She's really cool. He lights up to see her. When I see him that happy, I actually feel happy for him, not jealous."
by nomadak March 11, 2010
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Love your lover's lover for they too love your lover
Love is multiplicative, compersion in nature. Love in its whole is much greater than the sum of the discrete pairings.
by HoneyBunsofSteel October 25, 2020
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Taking pleasure or joy in the action of your partner engaging in a similar romantic or sexual relationship with another person.
See also polyamory
The opposite of jealousy is compersion.
by sparklejess December 31, 2005
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"Compersion" is the secondhand feeling of happiness you get when you see someone else happy.
I feel compersion when I see a toddler happy; I don't know if I love her, but I do indeed feel compersion for her.
by Cheeku Naman April 4, 2019
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Compersion is difficult to explain and is an expanded type of love. It's the knowing that life and love is better when our partners are happy and have more love in their lives. It's the joy and love you feel when your partners are happy with their other partners, when you see different aspects of them, when that love makes your own relationship deeper.

NOT necessarily about arousal or cuckolding! o_O Compersion can involve arousal, it can be hot to hear about sexy times your partners have had with other people, but it ain't the main use for that word.
She felt a heart-melty compersive reaction to seeing her sweeties snuggle with other people cuz damn ain't that cute to see.
by manky titties August 5, 2018
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