London, March 4 (IANS) Details of the much discussed courtship between Angelina Jolie and Brad Pitt and more will be revealed in a new book by author Jenny Paul.

Paul has spent six years in researching for her book 'Brad Pitt and Angelina Jolie: The True Story'. According to imdb.com, the author is convinced she has the goods on the couple's private worlds when they met on the set of 'Mr and Mrs. Smith' in 2004.

Paul has also unearthed details of Jolie's sexual liaisons around the time of her first Pitt meeting and claims she was dating ex-husband Jonny Lee Miller and actor Ralph Fiennes.

Paul's claims linking Jolie to Mick Jagger are sure to shock more than any other facts in the book. She says in her book that Jolie slept with Jagger around the time she appeared in the 1997 Rolling Stones video for 'Anybody Seen My Baby'.

The book also features revelations about the couple's expanding family and claims the pair plans to have 13 children -- 'some will be adopted, some will be biological', Paul says.