Brazilian woman, 19, ‘gives birth to twins with DIFFERENT fathers after having sex with two men on the same day’ 

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  • Anonymous 19-year-old claims paternity test reveals different fathers
  • had decided to get tested as she doubted who was the father of the twins
  • Said the results stunned her and she didn’t know it could happen
  • His doctor Tulio Jorge Franco said it was a ‘one in a million’ situation

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A Brazilian woman has claimed to have given birth to twins of different fathers after having sex with two men on the same day.

An anonymous 19-year-old from Mineiros in Goas, Brazil, said she took a paternity test because she wanted to confirm who the father was.

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He had decided to get tested because, after eight months, he had doubts as to who the father was.

The 19-year-old collected DNA from the man she thought was the father, but after two tests, the result came back positive only for one of the twins.

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He then remembered that he had sex with a different man on the same day and when this other man took tests, he showed that he was the father of the other twin.

The 19-year-old from Mineiros in Goiás, Brazil, who asked to remain anonymous, said she took a paternity test because she wanted to confirm who the father was. He had decided to get tested because after eight months he had doubts as to who the father was. Pictured: Twins

This phenomenon is scientifically named as heteroparental superfecundation.

talking to globo, her doctor Tulio Jorge Franco explained: ‘This can happen when two eggs from the same mother are fertilized by different males. The babies share the mother’s genetic material, but they grow in separate placentas.’

He emphasized that the case is extremely rare, and is a ‘one in a million’ situation and he did not think he would see such one in his life.

It has been claimed that there are only about 20 such cases in the world where this has happened.

Local media reported that the babies are now 16 months old, but Dr Franco only spoke about the matter this week.

And now, a father takes care of both the children, supporting his mother.

The 19-year-old collected DNA from a man he believed to be the father, but claimed that after two tests, the results came back positive only for one of the twins.  After the second test, she realized that she had sex with a different man on the same day and claimed that after her test, it was positive that he was the father of the other twin.  Pictured: Twins

The 19-year-old collected DNA from a man he believed to be the father, but claimed that after two tests, the results came back positive only for one of the twins. After the second test, she realized that she had sex with a different man on the same day and claimed that after her test, it was positive that he was the father of the other twin. Pictured: Twins

Can twins have different fathers?

Having twins with different fathers is an extremely rare phenomenon known as heteropaternal superfecundation.  Previous studies had suggested that the odds of this happening could be between one in 400 pairs and one in 13,000 pairs (file photo)

Having twins with different fathers is an extremely rare phenomenon known as heteropaternal superfecundation. Previous studies had suggested that the odds of this happening could be between one in 400 pairs and one in 13,000 pairs (file photo)

It may sound unlikely, but the birth of twins with different fathers is an extremely rare phenomenon known as heteropaternal superfecundation.

Cases usually come to light only when suspected relatives request DNA testing of the newborn.

But one study suggests that heteropatternal superfecundation may affect one in 400 twin births in the US.

Heteropaternal superfecundation occurs when a mother releases two eggs which are then fertilized by two sperm cells from different males.

Females usually have to have sex with two different males the day before or after ovulation to fertilize both eggs.

Although heteropatternal superfecundation is rare in humans, it is relatively common in other animals, including dogs, cats, cows, and rodents.

In species where females have multiple mates, some males have also developed strategies to ensure that their sperm reach the egg.

This may include developed penises that damage the female’s reproductive tract, preventing subsequent mating, as seen in dragonflies.

Source: Conversation

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Credit: www.dailymail.co.uk /

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