10/05/2026
Here’s a tighter Facebook version with the unusual relationship revealed immediately and a stronger curiosity hook:
Anna and Lucy DeCinque don't just dress alike.
They don't just eat the same meals or follow the same routines.
For more than a decade, the identical Australian twins have also shared the same man.
**And now they're both engaged to him.**
His name is Ben Byrne.
For Anna and Lucy, being twins has never simply meant looking alike.
The Perth sisters have built their lives around doing almost everything together.
Same clothes.
Same food.
Similar routines.
Major decisions made side by side.
So when they tried having separate boyfriends, something felt wrong.
Separate relationships meant separate time.
One sister might go on a date while the other stayed home.
One boyfriend might want privacy with Anna.
Another might want Lucy to himself.
For most couples, that would be completely normal.
For Anna and Lucy, it felt like their relationships were pulling apart the bond they had spent their entire lives protecting.
Then came Ben.
Instead of choosing one sister, he became the partner of both.
Suddenly, nobody had to leave the other behind.
Their unusual relationship eventually brought them international attention through TLC's *Extreme Sisters*.
And viewers discovered that sharing a boyfriend was only part of their extraordinary determination to remain alike.
Anna and Lucy frequently dress identically.
They eat the same foods.
They've spoken about matching cosmetic procedures.
And when it comes to Ben, they say equality is essential.
If one receives affection, the other doesn't want to feel forgotten.
If there's an important experience, they want to share it.
Which naturally raises the question almost everyone asks:
**What about jealousy?**
The sisters say they don't see themselves as rivals competing for Ben.
They see themselves as a team.
Eventually, Ben took their relationship another step.
He proposed.
**To both sisters.**
With matching rings.
But there is one thing their unusual relationship cannot easily overcome:
Australian marriage law doesn't allow Ben to legally marry both women simultaneously.
Still, the three have continued imagining a future together.
And Anna and Lucy have discussed an even more ambitious shared milestone:
**Becoming mothers at the same time.**
The sisters have publicly discussed fertility treatment and their hope of becoming pregnant together.
For most sisters, simultaneous pregnancies would be an extraordinary coincidence.
For Anna and Lucy, it would fit the way they've tried to experience life from the beginning:
Side by side.
Same clothes.
Same routines.
Same milestones.
And now, the same fiancé.
Their relationship may be impossible for many people to imagine.
But perhaps the most complicated part isn't sharing the same man.
It's maintaining the promise on which the arrangement appears to depend:
**Neither sister can ever feel like she comes second.**
After more than a decade together, that leaves one fascinating question:
**What would be harder—keeping everything perfectly equal, or keeping jealousy out of the relationship?**