Woman gives birth to twins with DIFFERENT fathers after having sex with two men

A woman has given birth to twins with different fathers after having sex with two men in the same ovulation period, it is reported. The woman and her husband recently took their two-year-old children for DNA tests because of 'striking' differences in their appearances.The husband was shocked to hear that only one of their twins was biologically related to him.

However, both were the offspring of the mother - with tests ruling out the possibility of a hospital mix-up shortly after their births.

Le Dinh Luong, president of the Genetic Association of Vietnam, told AFP that the findings were extremely rare.

"Our Centre for Genetic Analysis and Technology lab has tested and found a pair of bi-paternal twins," he said.

"This is rare not only for Vietnam, but for the world."

Bi-paternal twins can occur if two eggs from the same woman are fertilised by the sperm of two men during the same ovulation period.

However, Tuoi Tre newspaper reports that the husband was encouraged to take his children for DNA tests by his relatives, who noted that one of the twins did not look at all like him.

The two siblings also had 'strikingly different' appearances, according to Dan Tri news site.

The pair were both born on the same day around two years ago. But despite being the same sex, one of them has thick, wavy hair while the other has thin and straight locks.

The unidentified family are now said to be looking for the best way to deal with the shocking test results.