Cameron put his 'privates' into dead pig's mouth, claims book

According to the unauthorised biography of British PM 'Call me Dave', the act was carried out when he was a student at Oxford University

A book has claimed that British Prime Minister David Cameron once put his 'private part' into a dead pig's mouth during a ritual.

According to the unauthorised biography of British Prime Minister 'Call me Dave', Prime Minister Cameron carried out the act when he was a student at Oxford University, Daily Express reports.

Sources reveal that the story was described to the authors by a contemporary of the Prime Minister who went on to become an MP, in which he reportedly said the pig's head was resting on the lap of a member of a dining club at Oxford while Cameron carried out the act.

There are reports of photographic evidence of the alleged act. However, the individual who is said to own the picture did not respond to the authors.