01/24/2012 05:26 am ET Updated Jan 25, 2012

'Watch What Happens Live': Brandi Glanville Says She Hooked Up With Gerard Butler (VIDEO)

Famously scorned woman and "Real Housewives" star Brandi Glanville played "Plead The Fifth" on "Watch What Happens Live" (Weeknights., 11 p.m. EST on Bravo) Monday night.

Host Andy Cohen gave her this scenario: If she was left alone in a room with LeAnn Rimes (the woman her ex-husband, Eddie Cibrian, left her for), with no fear of repercussions, "what would you do or say to her?" No stranger to dissing Rimes and Cibrian on-air, Glanville grimaced before pleading the fifth.

Pleading the fifth meant that she had to answer the next two questions. And that's when she dropped the bombshell. Cohen asked, "Who is the most famous person, besides Eddie Cibrian, that you have hooked up with?" Glanville's answer: "Gerard Butler."

As Cohen and the audience shrieked, Glanville revealed that she and the hard-bodied Scottish movie star shared "a week of fun" last summer. How much fun? Let's just say that Butler went all the way up to 11.

Get more scoop on "Watch What Happens Live," weeknights at 11 p.m. EST on Bravo.

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