Talk about a backflip: Less than three months after Charlie Sheen called his ex-wife Brooke Mueller an "adderall snorting husk,” the outspoken actor is boasting to pals that his ex-wife is a “saint” after she paved the way for him to spend time with his troubled twin sons, Bob and Max, four.

The Hollywood megastar, 48, is now fully supporting the Palm Beach socialite’s bid to regain custody of their sons, who have been at the center of a bitter custody fight since she was placed on an involuntary psychiatric hold at the UCLA Medical Center in May last year.

Bob and Max -- labelled “zombie-like” boys who exhibit “extreme violent mood swings” and “violent behavior” —  are currently being cared for by Brooke's brother, Scott, under the order of a Los Angeles court.

Revealed a source: "Even though Brooke doesn't have legal custody of the boys, she does have the final say in allowing the boys to spend time with Charlie. She has permitted the boys to spend at least three days a week with their father, including at least one overnight visit. The visits always take place with a monitor present, at Charlie's expense, to make sure everything goes smoothly.”

Included in those visits is Sheen’s [expletive] star girlfriend Brett Rossi, a source told Breaking Celebrity News.

"Brett loves spending time with the boys and has gone swimming with them in Charlie's pool. It wouldn't surprise anyone if she were to become pregnant as she and Charlie have already talked about starting a family together,” said one Sheen insider.

Breaking Celebrity News broke the story: A fragile and surprising peace broke out between Sheen and Mueller after the star’s serial rehabbed ex-wife, 36, allowed him to finally visit the boys in January.