Looks like there might be some trouble at the Playboy Mansion. According to the New York Post, Hugh Hefner's been caught lying to one of his three girlfriends - and even worse, not defending her honor! In a recent Elle magazine article on their E! show, The Girls Next Door writer Daphne Merkin meanly characterized girlfriend Kendra Wilkinson as "dazed [with] a fleeting attention span, limited vocabulary and distinctly unintellectual charm." Hugh then went on Larry King Live with his girlfriends and was supposed to write a letter to Merkin in defense of a hurt Kendra. Turns out the letter he actually penned was far more flattering. "I think it's the best, most perceptive piece on the show to date," he wrote. Way to be a gentleman, Hef.