Open and Honest - Ever been curious about an open relationship? Well, you're not alone. Unconventional marriages work for a surprising number of people, including lots of celebs. Oscar winner Mo’Nique is probably Hollywood's poster child for open marriages, and has been very upfront about the arrangement she has with her husband, Sidney Hicks. Here are several more stars who keep their relationships open.(Photos from Left: Kevin Winter/Getty Images, Jemal Countess/Getty Images)