Jennifer Wilson reviews new books on open relationships and non-monogamy: “American Poly,” by the historian Christopher M. Gleason, and “More,” a memoir by Molly Roden Winter.

Molly Roden Winter, wife and mom of two, explains why her open marriage started after her therapist suggested making a "freedom to do" list.

My husband and I have always had an open relationship from the beginning. Here's why ethical nonmonogamy works for us.

I'm in an open marriage. Well, to be simultaneously more and less specific: I'm in a nonmonogamous marriage. An "open" marriage, in the nontraditional world, means that the couple may be having ...

An open marriage is one where both spouses consent to their partner having relationships with other people. Experts weigh in on how to define an open marriage.

Danielle, who has been in an open relationship with her husband for over a decade, says marriage, for them, is much bigger than sexual exclusivity.

In my 20s, I thrived in several open relationships, but now, I'm in a monogamous marriage. My open relationships taught me that I need to invest in people outside of my primary partner. I also ...

An open marriage can work — if you both agree with these 6 things: 1. Well-established (and maintained) stability and security It feels pleasing to know that you are still desired by people who ...

O'Neill's definition of open marriage was more about opening oneself up to the world and not focusing on being a couple and nothing more. Interestingly, that is still the best marriage advice around.