A Vietnamese couple had their set of twins undertake genetic testing, because of stark differences in the children’s appearances, with a remarkable and rare outcome.

“Our Centre for Genetic Analysis and Technology lab has tested and found a pair of bi-paternal twins,” Le Dinh Luong, president of the Genetic Association of Vietnam, said. “This is rare not only for Vietnam, but for the world,” he said.

Bi-paternal twins occur when the two children have different fathers, but the same mother. This can happen if two eggs from the same mother are fertilised by sperm from two different men during separate acts of sexual intercourse within the same ovulation period.

According to the Tuoi Tre newspaper, the genetic testing was at the request of the husband, to determine if in fact he was the biological father of both his wife’s twins.  Reports say that relatives of the man pressured him to have the tests conducted due to the striking differences in the now two year old children.

The results indicated the man was related to only one of the babies, with his wife being the biological mother to both children.

According to Dan Tri online news site, the twins were the same sex, born on the same day, just a few hours apart, but looked completely different.

Another rare case of bi-paternal twins was reported in the United States last year, when a court ruled that a man was only required to pay child support for one girl in a set of twins after DNA tests proved he was not the father of both.

Image source: Shutterstock

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  • That’s incredible that such a thing can happen. I bet the wife had a lot of explaining to do…


  • I guess there is a first for everything


  • Oh my god, who would’ve thought?! What a way to be caught cheating! I knew this could happen with dogs, never humans tho


  • Wow I’d never heard of this before.


  • I would never thought this could happen. Poor kids! How this mom is going to explain about that to her kids?!


  • Umm… Am I the only one to realise that this means the wife is an adulteress? Can’t help but foresee some bad things in store for that family… Poor kids, poor Dad, perhaps a little even poor other Dad… :/ Strange old world in which we live.


  • Very interesting… I wonder how the mum came to be in this situation.


  • Far out !!! I have heard some stories before but nothing like this. I can’t begin to think how the husband must feel. He will be paying child support for one and the other guy paying for one. If one dad earns less than the other that will most likely cause complications too. I wonder if either of the Dads sees his baby at all.


  • I’d be interested in reading how this story develops. The woman cheated on the husband. And now everybody knows!


  • Lke cd


  • WOW didn’t think that was possible… Interesting!


  • Sounds like wifey was playing up and got caught out in an unsuspecting way


  • It is amazing that this can happen but it can. I hope that he chooses to still be a dad to both of the children.


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