Willa Ford, who had a minor radio hit several years ago with the song "I Wanna Be Bad," is living up to her promise. Sources say the sexy young blonde plans to bare all in the February issue of Playboy. One person who won't likely need to check out the prurient pics is Ford's latest squeeze, DJ Cassidy. The couple were spotted recently at the Los Angeles health food eatery Urth Cafe, where they made out in between nibbling their vegetarian fare.