A Chinese man (not the one pictured) is left stunned as he discovered that his infant twins have two fathers, a DNA analyst who conducted the paternity test has revealed. In the file picture above, a father takes a nap with his twins in a shop on August 28, 2006, in Wuhan.
'First, the mother needs to produce two eggs instead of one in the same month [to have twins],' Ms Deng, who is also the director of Beijing Zhongzheng Forensic Identification Centre, explained to China News Weekly.
'Second, she needs to have intercourse with two men in a really short space of time to make it possible.
'The results showed that the children have the same mother but not the same father.
They have at least two fathers,' Ms Deng suggested.
Twins being born with different fathers is an extremely rare occurrence known as heteropaternal superfecundation.
Women usually have to have sex with two different men within a day before or after ovulation for both eggs to be fertilised.
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