A Houston-area woman has filed a lawsuit against a porn star, claiming she stole her name. Lara Madden, 25, has appeared in about a dozen X-rated movies under the stage name ``Syvette Wimberly''. That's the problem. The real Syvette Wimberly was one of Madden's classmates at Kingwood High School and is suing Madden for invasion of privacy and emotional distress.