Paris Hilton is on the wagon and off drugs as she tries to get pregnant, the New York Post reports. Beau Benji Madden is the twin brother of Joel Madden, aka Nicole Richie's baby daddy. "She's jealous of all the attention Nicole Richie has been getting and knows she's fallen off in the tabs lately," says an alleged friend. "A baby would put her back in the news." (More Paris Hilton stories.)