A book authored by a WikiLeaks defector claims that the founder of the whistleblower website, Julian Assange, has four 'love children' across the world.

According to the leaked excerpts of the book by former WikiLeaks spokesman Daniel Domscheit-Berg, Assange used to boast about how many children he has fathered across the world.

An excerpt of the tell-all book was leaked to gossip website Gawker.

Often I sat in large groups and listened to Julian boast about how many children he had fathered in various parts of the world. He seemed to enjoy the idea of lots and lots of Julians, one on every continent.

Whether he took care of any of these alleged children, or whether they existed at all, was another question, Domscheit-Berg has reportedly written in his book.

After Domscheit-Berg left the organisation amid tensions with Assange, he launched a rival site called OpenLeaks.

From his bombastic OKCupid profile to his creepy love letters to a 19-year-old girl, Wikileaks founder Julian Assange's has some strange romantic proclivities. Strangest of all is his apparent obsession with littering the world with offspring, the excerpt goes on.

One of the four offsprings include 20-year-old Daniel Assange, who lives in Melbourne, Australia. According to Gawker, ages of the other two children and their mother's identities are unknown but both are in Australia. A former friend has revealed that the youngest of the love children is just six months old.

Assange is currently undergoing trial in connection with rape and sexual molestation charges.