Heath Ledger is desperate to have five more children with his fiancee Michelle Williams, following the birth of their daughter MATILDA last year (05). The 27-year-old Australian star, who met Williams on the set of gay cowboy romance Brokeback Mountain, is convinced having six children will bestow endless fame and fortune upon his family. He explains, "Six. That's close to the figure we're talking about! We feel like it's ideal. That's like our magic number."