Donna Martin may have saved herself for David on Beverly Hills, 90210, but in real life, actress Tori Spelling had her sights set on more than one of her male co-stars! While taking an "Ultimate Lie Detector Test" for E! News this weekend, Spelling revealed that she not only dated Brian Austin Green (who played David on the show) in real life, but that she also had a "fling" with Jason Priestley, and once kissed Luke Perry. Spelling, who took the test in conjunction with Lifetime's The Unauthorized Beverly Hills, 90210 Story, said her romance with Priestley was confined to a single summer during the course of filming.