Brandi Glanville has graduated from ex-husband Eddie Cibrian (NBC's The Playboy Club) to a bonafide A-lister: Gerard Butler!

Set to appear on this season's Real Housewives of Beverly Hills, 38-year-old Glanville was spotted making out with Butler, 41, in Malibu Aug. 27. And that wasn't their first tryst, either.

PHOTOS: Hunky! See Gerard and other stars hit the waves

"She's messed around with him since leaving Eddie," a source explains to Us Weekly. (Glanville and Cibrian, 37, wed in 2002 and have two sons; they finalized their divorce in October 2010. Cibrian wed LeAnn Rimes this past spring.)

Find out more about Glanville and Butler's sexy hookups in this week's Hot Stuff video, as told by Us' Senior Editor Ian Drew.

PHOOTS: LeAnn and Eddie's controversial romance

Also in the roundup: Emily Maynard says "no" to The Bachelorette, Lauren Conrad sells her Hills place, the dish on Ryan Gosling and Eva Mendes' Disneyland PDA and much more!

Watch the Hot Stuff video now!

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