Jack Osbourne blames his sister KELLY for his current sex drought, because she terrorises the women who try to romance him. The son of Black Sabbath rocker Ozzy wishes his sister would refrain from vetting his potential bedmates, even if she does have his best interests at heart. The 20-year-old says, "She scares them off! I'll be with a girl and Kelly will go, 'You're ugly! F**k off!' "She may be right but that's why I haven't had sex for four months!"