A mum has become an overnight sensation after giving birth to her third set of naturally conceived twins in a row.
Microbiologist Olga Akopyan, 31, from Russia, already had two sets of twins and another daughter when she became pregnant again.
And now she has another pair to add to her family - this time a boy and a girl.
The babies, named Aurora and Gaspar, are currently staying with their mum in a maternity hospital in Khimki, a city in the Moscow region in Russia.
The news of the twins is even more surprising because neither mother nor father have any history of having twins among their other close relatives.
At one point Olga even feared she might never have children after a test revealed she might be infertile.
But after that shock, she went on to have her first child, a daughter, at the age of 19 and since then she has had the three sets of twins.
All of their children were conceived naturally with no IVF treatment.
When the couple, who are from Armenia, first learned they were expecting twins, Olga travelled to the hospital in the Moscow region with her husband for the birth of Christina and Karina, and was not expecting to have to go back in a rush.
But when she was pregnant again with twins Garik and Anastasia, she once again travelled to the same hospital where she was seen by the same doctor, Vladimir Mirzonov.
And this time round it was no different, with the happy event celebrated by the local Commissioner for the Rights of the Child in the Moscow Region, Ksenia Mishonova, who posted a picture on Instagram .
She wrote: "Hurray. Twins - a boy and a girl - were born in Khimki here in the Moscow Region. You might wonder why I make such a big fuss about it, and you would be right, if it wasn't for the fact that it's the third time in a row for the same family."
Only the couple's first child, a girl named Alina, was a single child and not accompanied by twin. That means that the couple with three twins and an older girl have seven children to raise from four pregnancies.
The mum works as a microbiologist after graduating from the Russian State Agrarian University, and says in the future she would like to have still more children.
According to her doctors, twins might well be on the cards again.
In the general population less than one per cent of pregnancies are twins, but once a woman has had twins the likelihood of a repeat increases.
Obstetrician-gynaecologist Boris Lordkipanidze said: "There are not many women with a predisposition to the birth of twins. But if a woman ovulates with two eggs, then the chances that she will have twins in a second pregnancy doubles."