A Los Angeles woman has slapped Jessica Simpson with a federal lawsuit, claiming the bimbonic blonde and her business partners ripped off her trademarked cosmetics brand.Mara Fox ,who launched her “Love Potion ” line of beauty products in 1989,also names cosmetics giants Sephora and D ‘Lish Fragrance in the multimillion-dollar suit.In 2004,Simpson,Sephora and D ‘Lish launched “Dessert Beauty Deliciously Kissable Love Potion,” which Fox claims blatantly lifts from her older, registered brand. Simpson has a tight relationship with creams.The formerly pockmarked pop princess battled acute acne in her teens and now endorses Proactiv anti-acne solution along with P.Diddy and Alicia Keys .Reps for Simpson didn ‘t return calls.