The source claims Ashton Kutcher knew about Demi’s fling and put a stop to it!

File this one under: Probably not true. The National Enquirer is reporting that Demi Moore once hooked up with — wait for it — The Real Housewives of Beverly Hills sar Brandi Glanville! The lesbian tryst allegedly went down in March 2009 at Bruce Willis estate in Turks & Caicos.

“Brandi was quite proud of what happened,” the source claims. “She was bragging as she recounted every sordid detail. Brandi said they stopped what they were doing because Ashton [Kutcher] interrupted them.”

What do you think of his wild accusation, HollywoodLifers? We know Demi and Ashton liked to have their fun, but this seems a little far-fetched.

More Brandi Glanville News

1. ‘RHOBH’ Debate: Camille Grammer & Brandi Glanville’s Grinding — Awkward Or Hot?
2. ‘RHOBH’ Recap: Kyle & Kim Richards Slam Brandi! “She’s a Piranha!”
3. ‘RHOBH’ Recap: Brandi Glanville & Kyle Richards BOTH Act Like “Trailer Trash” As Insults Fly!