Sun - HUGH HEFNER has a new Playmate – and this one’s a "good girl". CRYSTAL HARRIS writes on her MySpace page as "I’m a good girl, for the most part”. And the busty blonde revealed on E! Online’s message board that she has moved into the Playboy mansion, along with 19-year-old twins KARISSA and KRISTINA SHANNON. Warning: Article contains topless image of the twins.