Transcript for Polyamory: 1 Mom, 2 Dads and a Baby
The modern family and one of the most unusual and provocative new family arrangements -- out there. Polly -- -- golf in which multiple lovers live together openly under one roof two women and a man perhaps or in the example -- check out tonight. A woman. And two men -- that doesn't sound complicated enough they're raising a child all together controversial here's ABC's Abbie Boudreau for our series. Modern sex in America. And it anymore. This is the story of giant and her lover John them. First someone at any minute. And her other lover here a means dad. There -- one big happy poly -- family. A woman -- -- heterosexual boyfriends and a child. Living together in a comfortable. Suburban home just outside Los Angeles have to answer reflect on the -- what do you say to people who believe that your relationship. And the way living your life is wrong thank you sharing your opinion and you went out and we're not here to convert people and tell people not -- Totally out choice it's not like we slept with hundreds of people and it's this crazy sexual things I'm looking for -- way. Helps me be the best human and -- could possibly. Here's how would start Jaya has been in a committed relationship with John for years. But John -- wanted to have a baby and John didn't. Stay with us here so John suggested -- find another lover. And she did it. -- -- Three years ago Jaya and Ian conceived even. And they are not the only ones doing -- by some estimates there are more than a half million polygamist arrangement. -- -- Four giant that means limitless love -- -- searching for the one. I can have the one and I can also have the one and the one and the one. Unlike polygamy like in HBO's big love we think it's time. -- -- game. Where one man marries multiple women. -- -- means many loves. It's an open arrangement for both the men and the -- not. Our house is little backwards and that all the veterans are downstairs and Saddam upstairs when it comes to intimacy we actually schedule -- time. Like on the calendar -- -- -- sometimes sometimes we have spontaneous moments can't act but I actually like scheduling because I can look forward to. -- -- -- Means -- now will we can do read content that's it's no picnic and for years -- and John with a primary Koppel. -- can share something. Can be. Can be tough ironically even -- John didn't want to -- A -- was born he quit his jobs take care and full time. Jaya hazard to lovers but how -- the men feel about each other when -- your friends if it wasn't for her but. -- WEB hang out buddies frightened they're very. If if check. But in this three headed households who takes charge. Do you consider yourself -- the alpha dog in this family. Yes. It also -- about -- -- -- yet or both office. So what does that -- John John. I think self admittedly -- -- would say that he's somebody who. Gets. Fulfillment out of being in service doing things for people. As we said this it's complicated. Tonight Jaya and Ian are setting up for their weekly date for an a look at some food. -- -- -- -- -- -- -- -- -- -- Thanks for watching -- and well John doesn't seem too happy about it. It allows Jaya and even some time alone. Clinton. And at the end of the evening some real intimacy. -- -- the common misconception. It's not a community relations. When we visited Lil -- -- like a happy well adjusted young lawyer. Would think you wonder how all of this will affect their son unfortunately -- sometimes people are -- and not always loving. And -- -- right now. What is a modern family it's we've got it step mom and step dad -- -- gay parents raising children we've got it. The family today is a totally different thing what it was years and years ago she know about sex and where did you learn about it -- -- None of this -- strain currently do not so surprisingly. She's a professional -- psychologists. -- But in this triangle they all agree on certain rules practicing safe sex and steering clear from -- partners. Still having multiple lovers can create insecurity. -- -- giants fans. More quality time with -- I think self right now especially. There's this pardon me that just kind of wants to go back to that -- that was my girlfriend if that sounds awfully big non. Pet food do you think that your partner happy. I know that that -- has very very. Happy. John I don't know that's something like ten pick his brain -- I wonder -- -- have another child. And so that's -- -- that's why I'm questioning him. Because I know for sure that I don't have a child and now she doesn't want anymore children were -- you. Soon this modern family may -- even bigger with John on the lookout for new partner. Dean with liberal -- on the side and of course -- Always open for more law. -- fat. It's complicated. For Nightline Abbie Boudreau ABC news now.
This transcript has been automatically generated and may not be 100% accurate.