They eat the same foods. They measure their meals to the exact gram. If one sister walks a certain number of steps, the other has to match it. Honestly, it sounds exhausting. But for Anna and Lucy DeCinque, this isn't some weird performance art or a temporary stunt for a reality show. It is their actual, daily life. You've probably seen them on TLC’s Extreme Sisters or caught a viral clip of them finishing each other's sentences with spooky precision. People call them the "World's Most Identical Twins," a title they've basically turned into a full-time career.
They share a bed. They share a car. They even share a boyfriend.
That last part is usually what makes people do a double-take. Ben Byrne, an electrical mechanic, has been in a relationship with both sisters for over a decade. It’s not your typical "threesome" dynamic you see in movies. It’s a rigid, committed trio where Ben has to balance his attention with mathematical accuracy. If he kisses Anna, he has to kiss Lucy immediately after. It’s about total symmetry.
The Science and Psychology Behind the Symmetry
While the internet loves to gawk at their lifestyle, there is a genuine psychological fascinations here. Most identical twins spend their adult lives trying to find their own "thing." One grows their hair long, the other cuts it short. One moves to the city, the other stays in the suburbs. Anna and Lucy DeCinque did the opposite. They looked at their shared DNA and decided to lean into it until the lines between "me" and "you" completely blurred.
Psychologically, this is often referred to as "enmeshment." In most family dynamics, enmeshment is seen as something to fix. For these two, it’s their superpower. They spent nearly $250,000 on cosmetic procedures in the past—think lip fillers, breast implants, and eyebrow tattooing—just to make sure they stayed mirrored images of one another.
Interestingly, they later regretted a lot of that.
They eventually decided to let their fillers dissolve and move toward a more "natural" look, though "natural" is a relative term when you still dress in identical outfits every single day of your life. They realized that the plastic surgery was making them look more like "dolls" than humans.
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Dealing with the Shared Life of Ben Byrne
Ben is the glue in this very strange puzzle. He joined the relationship in 2012 and has managed to stay there ever since. Why does it work? According to the twins, it's because he understands the bond. Previous boyfriends tried to separate them. They wanted "alone time" with one sister. That was a dealbreaker.
Ben doesn't want that. He accepts that they are a package deal.
They've even spoken publicly about their desire to get pregnant at the same time. This is where things get medically and ethically complex. They want their bodies to undergo the exact same changes simultaneously. Nature, however, doesn't always follow a schedule. Even with IVF, which they've discussed, there’s no guarantee of identical pregnancy timelines. It’s one of the few areas of their lives where they can’t force total synchronization.
Why Social Media is Obsessed with the DeCinque Sisters
We live in an age of individuality. Everyone wants to be a "main character." Seeing two people work this hard to be the same character is fascinatingly counter-cultural. It triggers a mix of curiosity and discomfort. Their YouTube channel and Instagram feed are filled with comments ranging from "This is beautiful" to "This is a mental health crisis."
They don't really care about the hate.
The sisters have mastered the art of the "double act" for the digital age. They speak in a rhythmic, synchronized pattern that almost sounds like a single voice with a delay effect. It’s mesmerizing. It’s also a savvy business move. By branding themselves as the "most identical," they’ve secured TV deals, brand sponsorships, and a level of fame that wouldn't exist if they were just two sisters living separate lives in Perth, Australia.
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The Logistics of Being One Person in Two Bodies
Think about the small things. If Lucy gets a scratch on her arm, Anna feels a phantom stress about it. If one needs to go to the bathroom, the other often goes too, just to stay on the same biological clock. They’ve admitted that they can’t function if they aren't together. Separation anxiety doesn't even begin to cover it. It's more like a total loss of identity when they are apart.
- They share a single Facebook account.
- They never leave each other's sight.
- They mirror each other's physical movements during conversations.
This level of commitment to a bit—if you can even call it a bit—is unparalleled in the world of influencers. Most people "turn it off" when the camera stops rolling. For Anna and Lucy, there is no "off." This is their 24/7 reality.
The Reality of TLC’s Extreme Sisters
When Extreme Sisters premiered, it put a spotlight on the DeCinque twins that was much harsher than their own controlled social media. We saw the tension. We saw the struggle of their mother, Jeanna, who tries to support them while clearly being overwhelmed by the intensity of their bond.
The show highlighted the "shared pregnancy" goal, which sparked a massive debate. Critics argued that bringing children into such an environment could be confusing for the kids. Who is Mom? Who is Aunt? For Anna and Lucy, the answer is simple: they would both be the mother. They don't see the distinction that the rest of the world sees.
It’s easy to judge. But if you look past the shock factor, there’s a weird kind of loyalty there. In a world where loneliness is an epidemic, these two have guaranteed they will never be alone. Ever.
What This Says About Modern Identity
The DeCinque twins are an extreme example of a broader trend. We are all obsessed with "branding" ourselves. We curate our lives. They've just taken curation to its logical, and perhaps slightly terrifying, conclusion. They have turned their physical existence into a unified brand.
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Is it healthy? Most doctors would say no. Is it successful? By the metrics of fame and financial stability, yes.
They face real challenges, though. In Australia, they can’t legally marry Ben. Polyandry isn't recognized. So they've had "commitment ceremonies," but the legal paperwork will never reflect their lived reality. They live in a gap between the law and their own personal rules.
Actionable Takeaways for Understanding the Phenomenon
If you're following the Anna and Lucy saga, it's worth looking at it through a lens of psychological curiosity rather than just "cringe" entertainment.
- Observe the branding: Notice how they use synchronicity to maintain a specific "image" that keeps them relevant in the 24-hour news cycle.
- Recognize the limits of biology: Even the most identical twins have different fingerprints and different health outcomes over time. Watch for how they handle the inevitable "desyncing" that comes with aging.
- Question the "Perfection" trap: Their early regret over plastic surgery is a huge lesson in the dangers of chasing a physical ideal that doesn't actually exist.
The DeCinque sisters will likely continue to push the boundaries of what it means to be a twin. Whether they succeed in their goal of simultaneous motherhood or eventually find a way to exist as individuals, they’ve already secured their place in the history of pop culture's most bizarre fascinations. They aren't just twins; they are a single unit living in a world built for individuals. It’s a constant friction that makes for great TV, but a very complicated life.
Keep an eye on their updates regarding Ben and their family planning. It’s the next major hurdle in their quest for total 1:1 symmetry. The biological reality of pregnancy will be the ultimate test of their "one soul, two bodies" philosophy.