Quite what the children made of the arrival of Noel is anyone's guess. But in John and Shanea's case there is no religious basis to their living arrangements; nor was there any history of, or even curiosity about, polygamy in the family.While she has sexual relations with each man - requiring some serious diary-shuffling, as we shall discover - the two men are not romantically involved with each other. They, on the other hand like each other - in a kind of sibling way.A few weeks before their marriage in February 2008 she told a magazine "monogamy bores me".Then, on their first trip to her £2 million Riviera villa, she also invited a trio of former boyfriends.Among the boyfriends is an unnamed Paris plastic surgeon who had a professional and personal "relationship" with Miss Bruni, a self-styled "tamer of men", for more than 20 years.
Visitors to her three-bedroom house would often comment on how simply getting through the day was a lesson in multi-tasking.What was she thinking of, then, when she welcomed another addition into the home? We've all heard about unconventional domestic arrangements before.This one may not have required feeding or walking, but his presence was certainly keenly felt. The TV series Big Love returns this month, featuring one man - a Mormon - who marries three women and successfully runs three separate households.He infamously cheated on both of his first two wives, and was described by one as someone who "loves no-one but himself".The new book, which is published by Flammarion, suggests that Miss Bruni views her husband as a "man even more unpredictable than her".