Nicole Richie and Jeff Goldblum are rumoured to be dating - despite a 30 year age gap.The 24-year-old 'Simple Life' star has previously confessed to having a teenage crush on Goldblum and was recently spotted having dinner with the 53-year-old 'Jurassic Park' actor.A source told America's Us Weekly magazine: "Richie says she has had a crush on Goldblum since she was 13."The pair got on so well they have plans to go out again."Since Nicole split from fiance Adam Goldstein, also known as DJ AM, she has been romantically linked to 'Crash' star Matt Dillon.'The Fly' actor Goldblum was once married to 'Thelma and Louise' actress Geena Davis.Nicole recently announced that she was planning to gain weight after a receiving a barrage of criticism regarding her super-slim figure.