AceShowbiz - Demi Moore has just released a bombshell memoir titled "Inside Out". According to a new report, the tell-all book gets her ex-husband Ashton Kutcher nervous and he seems to have a good reason to be.

In the new book, the 56-year-old actress first talked about how she met Ashton at a mutual friend’s party in early 2003. Claiming that she was head over heels for the actor, who is 15 years her junior, she dubbed their relationship perfect at the beginning.

Things took a bad turn following her miscarriage and several failed attempts at IVF. According to Radar Online, Ashton's sex-drenched movie "Spread" further made it worse with Demi claiming that Ashton told her that his co-star Jennifer Jason Leigh wasn't comfortable with Demi being on set. However, it was later revealed that Jennifer, who later departed from the project, didn't mind with her coming to set.

"The bottom line was that she wasn’t worried about me being on set, he was," she wrote in the book. "He wasn't honest."

Demi also revealed that she accepted Ashton's proposal to have a threesome. "I wanted to show him how great and fun I could be," she said, before calling it a "mistake."

As if that wasn't enough, the 41-year-old actor allegedly cheated on her with a 21-year-old woman while she was out of town to film "Another Happy Day" in 2010. Further adding insult to injury, she later claimed to meet the girl while bowling with Moore's then young daughter Rumer Willis. Ashton allegedly didn't think he was at fault as Demi explained, "Because we had brought a third party into our relationship, Ashton said, that blurred the lines and, to some extent, justified what he'd done."

Demi also accused Ashton of cheating on her with another young woman at his friend Danny Masterson's San Diego bachelor party on their sixth wedding anniversary weekend.

While Ashton is now married to Mila Kunis, Demi has not publicly dated anyone since her split from the actor.