Adam Lyons lives in a polygamous relationship with his two girlfriends Brooke Shedd and Jane Shalakhova, who has just given birth to the "throuple"'s newest baby
In May, the world was introduced to "throuple" Adam Lyons, Brooke Shedd and Jane Shalakhova.
The threesome, who are in a polyamorous relationship together, appeared on This Morning to discuss their unorthodox relationship.
They bring up two children together - Brooke's seven-year-old son Oliver from a previous relationship, along with Brooke and Adam's two-year-old son Dante.
The trio raise their children altogether (Credit: News Dog Media)
But the trio have just welcomed their newest member of the family.
Jane, 27, gave birth to her and Adam's son, who they named Orion Victor Lyons, on 6 July at a hospital in Austin, Texas near their home.
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Orion was born weighing 6lbs 11oz to the family, who will raise him in their family with three parents alongside Oliver and Dante.
Jane, who is bisexual, announced the birth on her Instagram with a photo of his birth certificate alongside the caption: "Welcome to the world my son Orion Victor Lyons. July 6, 2017!
"I had no idea I could love someone this much. I feel like my heart is going to explode!!! You were born to reach for the starts!"
Brooke, who is also bisexual, posted a photo of Jane during labour in the hospital whilst she sat by her side.
Adam, 36, has not yet announced the birth on his social media pages.
The three explained their relationship in a little more detail on This Morning to Ruth Langsford and Eamonn Holmes.
Adam said: "There's definitely some jealousy. But it's the kind of jealousy you'd get if one of your friends was going on a vacation with a bunch of your other friends and you had to stay behind and work.
"It'll often come because I'll be at work and the girls will be like, 'We're going to go and get our nails done'."
The children call both Jane and Brooke "mum" (Credit: News Dog Media)
Jane added: "I don't have romantic jealousy. I have jealousy on missing out on experiences more. For example, we planned this big cruise to go from America to England and I got pregnant and couldn't come."
Adam previously said: "It's so sweet that we all get to parent and raise the kids together. We have talked about it at length and we all consider ourselves parents to the children.
"For us, three definitely works better than two."