Drug troubled Mueller is "ecstatic over Charlie’s choice for a future wife,” a source said.
“She is so happy. Brooke has repeatedly been over to Charlie’s house with their sons, Bob and Max, and she and Rossi have truly hit it off.”
What’s more, we’re told, the 36-year-old socialite has joked that she “prefers women over men” — a reference to Rossi’s girl-on-girl adult acting.
“Brooke has even chided that Charlie is an amateur compared to her and she would 'pinch hit' for Charlie with Brett in a second if she got the chance,” the source said.
"Brooke loves the current environment of Rossi’s support and the bond all of them are creating while she resides in a house Charlie bought her which just down the street.
“This is a dream come true for Brooke and the boys since they have Brett and Charlie as neighbors and they are all getting along and truly liking each other.”
But as Radar has reported, Sheen’s second ex-wife, Denise Richards, has been "excommunicated" from the pack.
“Everyone seems to love it, especially Brooke and Brett,” the insider added.