Simon Cowell was engaged to Page Three Louise Payne

A new revelation from the unauthorized biography of Simon Cowell, Sweet Revenge: The Intimate Life Of Simon Cowell, has showed that the life of the music mogul can be more than a little perilous.

Author Tom Bower claims in the book that Simon Cowell found himself the victim of theft after having a drunken one-night stand with a woman back in October 2011.

Simon Cowell is said to have met the girl in Hollywood nightclub Drai’s and taken her back to his hotel, according to The Sun.

He awoke to find his wallet and laptop missing. Simon Cowell called the police to track down the device, which contained secret information about his TV shows.

The woman allegedly agreed to return the computer, but kept money from the supremo’s wallet.

The claims surrounding the theft are just a few of the revelations stemming from Tom Bower’s new book, due to hit shelves on Friday.

A separate story in the Daily Star newspaper today alleges that Simon Cowell was secretly engaged to Page Three girl Louise Payne, after she split from husband and Right Said Fred star Fred Fairbrass.

But their three-year relationship ended when the buxom blonde said she wanted to start a family with Simon Cowell, but he was too busy.

Simon Cowell apparently popped the question to the now-43-year-old in a lift during a business trip to New York, reported the Daily Star.

A source told the newspaper: “Simon was heartbroken. They tried to make it work but it all went wrong.”

Simon Cowell and Louise Payne met at a function in London in 1995, after the end of Louise’s marriage to guitarist Fred, now 55.

They allegedly first exchanged numbers at the party which Simon Cowell was attended with his brother Nicholas.

But during their first date, Simon Cowell had the flu and thought he had blown his chances. A year later they bumped into each other and began a romance.

The source added: “The relationship had its ups and downs. They split twice but he was so in love with her he kept trying to make it work.

“After the third attempt, they split for good. It was just before he started on Pop Idol. Louise wanted kids and he knew he wasn’t ready.

“He never stopped loving her, though. He was heartbroken.”

The revelation comes as Tom Bower reveals a string of claims about Simon Cowell’s previous escapades, including a short fling with fellow X Factor judge Dannii Minogue.

Simon Cowell’s string of girlfriends also include former Page Three girl Jackie St. Clair, 48, model and lap-dancer Georgina Law, 31, model Jasmine Lennard, 26, 1980s pop star Sinitta, 48, and TV presenter Terri Seymour, 38.

He has never been married but in 2010 he proposed to make-up artist Mezghan Hussainy, 38.

But their relationship ended in September last year.