I'm 30 and currently in a polyamorous relationship with my bf of 15 years (off and on) who is married. Its been working out for 3 years now. We live on the same property in two separate houses.
My bf loves me dearly, as I do him. He's known his wife for as long (1 year longer) as he's known me. They've been married 10 years and have three kids.
His wife has a bf that she's known off and on for years as well. That is a separate relationship from me and bf. She's recently gone outside of this grouping and is seeing others for sex. Which has opened up the possibility of her husband/my bf for going outside as well for sex or possible additional relationship.
I'm quite happy actually just having my bf. I have no kids of my own.