Publishing heiress Lydia Hearst‘s relationship with “Jurassic Park” star Jeff Goldblum, 58, continues to baffle her powerful family. The pair have been spotted out on dates in recent weeks in Los Angeles. A source told us, “Lydia is only 26, so it’s quite an age difference. She says that they are good friends, but the family desperately hopes it’s just a phase.” Hearst, a model who has previously been linked to Jared Leto and Cisco Adler, has been spending more time on the West Coast as she pursues an acting career. She couldn’t be reached for comment.