"He will ask me all the questions I don't want to answer, so then I'm gonna be this boring guest that will say, 'Next question, next question...' I don't see the point... I'm not afraid of it; it's just I don't want to share certain things with the public." Supermodel Heidi Klum is refusing to appear on shock jock pal Howard Stern's satellite radio show, because she doesn't want to talk about the end of her marriage to Seal or her new romance.