Credit: MediaPunch Inc


Brooke Mueller didn't wear a costume at Saturday's 18th Annual Dream Halloween bash at the Barkar Hanger in L.A. -- but Charlie Sheen's ex-wife certainly got noticed!

Mueller, 34, showed up on the red carpet with Bob and Max, her adorable 2-year-old sons with ex Sheen, 46. One accessory she didn't bring? A bra!

For her night out, the one-time World According to Paris star (holding her sweet kids in her arms) wore jeans, a beaded necklace and a sheer green top that exposed her breasts to all.

Mueller was completely unfazed by the exposure chatting with reporters on the red carpet. Her Halloween plans include a visit to the home of one Beverly Hills housewife. "We're going to Adrienne Maloof's house," Mueller said. (It was Maloof's husband, Dr. Paul Nassif, who helped out Sheen earlier this year after an extremely rough two-day bender at his nearby mansion.)

Although Bob and Max are still "too young" for their costumes, the once-warring exes will go trick-or-treating together. "I'm very proud of him, " Mueller said of her ex. "He's doing really great, we're really close friends and we will be trick or treating together."