Two Boys, Four Parents, and a Family Tree That Requires Explanation

In a house in Huddleston, Virginia, two three-year-old boys share a bedroom, call each other brother, and tell anyone who asks that they have two moms and two dads. From the outside, that might sound like an unconventional blended family, and in some ways it is. But the more interesting part of their story lives in their DNA, where science has found something with a specific name, even if most people will never encounter it in their lifetimes.

Jax and Jett are cousins. Scientists would also classify them, in a precise and documented genetic sense, as siblings. Understanding how that is possible requires going back to a festival in Ohio, a last-night conversation, and two sets of identical twins who had always hoped their lives would turn out exactly this way.

A Festival, a Bleacher, and a Wrist Grabbed in Excitement

Twinsburg, Ohio, hosts what it describes as the largest annual gathering of twins and multiples in the world. Brittany and Briana Deane, identical twin sisters from Virginia, had been making the trip to the Twins Day Festival since 2011. For Josh and Jeremy Salyers, identical twin brothers, 2017 marked their first visit.

Brittany spotted the brothers at a welcoming event before she and her sister had managed to cross paths with them. She reached over and grabbed Briana by the wrist, their established signal for excitement, and pointed out the two men walking across the gym floor below. Briana looked and later described them as stunning. Somehow, despite attending the same festival, all four did not connect until the final night. But when they did start talking, something moved fast. Within about fifteen minutes, both brothers had concluded they were in love, and the pairs had sorted themselves out without any apparent negotiation.

“Jeremy and I really were attracted to each other and started gravitating toward each other,” Briana told ABC News. “And Brittany and Josh started. So it was like perfectly kind of paired off.”

After the festival, both brothers drove from Tennessee to Virginia to visit the sisters. One trip was enough to confirm what they already suspected.

A Proposal Staged as a Commercial Shoot

Six months after the festival, Josh and Jeremy told Brittany and Briana they needed to appear in a commercial at Twin Lakes State Park in Virginia. Everyone arrived in coordinated outfits, matching blue gowns for the sisters and matching blue ties for the brothers. Everything looked planned because everything was planned, just not for the reason Brittany and Briana understood at the time.

Both brothers dropped to one knee at the same moment. Both produced matching engagement rings. Both sisters said yes, and later described saying yes at the same moment, which in retrospect feels entirely appropriate for a proposal choreographed down to its last detail.

One year after they had first met, all four returned to Twinsburg for a joint wedding ceremony at the Twins Day Festival. Brittany and Briana wore identical dresses. Two couples married before the same crowd, in the same space, on the same day.

What Quaternary Marriage Actually Means

Briana, Jeremy, Brittany, and Josh now live and work together at Smith Mountain Manor, a wedding venue they operate in Huddleston, Virginia. All four adults share finances, share a home, and raise their children together as a single family unit. Approximately 300 quaternary marriages, the term used when two sets of identical twins marry each other, are known to have occurred across recorded history.

People who encounter their story tend to arrive at a particular misconception, and all four of them have grown practiced at correcting it. Briana has addressed it on multiple occasions, making clear that their household contains two separate, traditional, monogamous marriages. No spouses are shared. Each twin has one partner. What is shared is everything else, including a home, a business, a financial life, and two small boys.

Two Boys Who Are More Related Than Cousins Should Be

Jett was born to Brittany and Josh in January 2021. Jax followed in April 2021, born to Briana and Jeremy. As the sons of siblings, they are cousins in the conventional sense of that word. But their relationship does not stop there.

Because Brittany and Briana are identical twins, they share the same DNA. Because Josh and Jeremy are identical twins, they also share the same DNA. When Jett was conceived by one pair and Jax by the other, both boys inherited genetic material from parents who shared identical DNA on both sides. What emerged from that is a classification with its own medical terminology.

“They are technically known as quaternary twins,” Briana explained to ABC News. “So they, because they are genetic brothers and they were born less than 9 or 10 months [of] each other. They’re genetic brothers [and] the same age.”

According to WebMD, quaternary twins occur when one set of identical twins has a child with another set. Genetically, those children appear closer to siblings born to the same parents than to ordinary cousins. Jax and Jett are not identical in appearance and have cycled through phases of looking very similar and phases of looking quite different. But their DNA tells a story that goes beyond what their family tree suggests on paper.

Both boys arrived at their own terms without instruction. Each calls the other brother rather than cousin. When asked about their family, both explain that they have two moms and two dads. From where they stand inside Smith Mountain Manor, none of that requires further explanation.

Both couples had hoped to experience pregnancy at the same time, treating overlapping pregnancies as part of what would make their family complete. Both also went through miscarriages before that overlap was achieved, a detail Brittany and Briana have spoken about publicly as a source of real pressure given the expectations built into their situation. When their pregnancies finally did overlap, Josh described it as a relief, because it was something all four of them had wanted for the sisters.

Keeping Two Marriages Strong Under One Roof

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Living with another couple, even an identical twin and their partner, requires deliberate management. Brittany, Briana, Josh, and Jeremy have developed a clear principle for navigating conflict. When the brothers are in a disagreement, the sisters stay out of it. When the sisters are in a disagreement, the brothers stay out of it. Brittany offered that rule as advice she thought would apply to most households, not only their own.

Each couple also maintains what Brittany has called a “forever dating” approach, keeping their individual marriages romantic rather than allowing proximity and familiarity to flatten them into something purely functional. Briana has said she and Jeremy are not the type to leave the bathroom door open, a line that works as shorthand for the kind of intentional formality she means. Privacy in the physical sense has occasionally become an issue. When the family moved into a larger home, Briana noted that all the extra space had not eliminated the challenges around bedrooms and closets. Four adults and two children in a shared house will run up against limits even a generous property cannot solve.

For Briana, working through harder stretches comes back to a deliberate act of memory. “Sometimes I think you get used to living the dream, and it’s nice to take some time to remind yourself of how badly you wanted it when you were younger, and how impossible it seemed at times growing up and when we were dating,” she told People. “And now we have it. So that keeps us strong.”

A Family That Keeps Drawing Attention

Brittany, Briana, Josh, and Jeremy run a shared Instagram account with more than 300,000 followers, where they document daily life at Smith Mountain Manor, holiday traditions with Jax and Jett, and the general texture of a household most people have no real frame of reference for. All four appeared on TLC’s “Extreme Sisters” before either of the boys was born.

At Twins Day Festival, their presence draws a particular kind of attention from other twins who see in their family what they themselves have hoped for. Brittany has described couples approaching them to say that all four had achieved exactly the life they were dreaming of. A memorable moment at a recent festival came when Jett, still very young, looked around at the crowd filling the space and said the word “twins” out loud for the first time, apparently processing what he was seeing at a festival built around people who look exactly like someone else.

Briana has spoken about what she believes sits at the center of why their arrangement works for all four of them. Identical twins come into the world already in company, she has said, with no memory of solitude as a starting point. Togetherness is what feels natural to them. What their family has built is an extension of that starting condition, carried forward into adulthood and into a house in Virginia where two boys call four adults their parents and where none of it, to anyone living inside it, seems anything other than ordinary.