Justin Bieber's mother wants his fans to stop telling her that he makes them "horny". Pattie Mallette has pleaded with his loyal army of followers, known as Beliebers, to stop sending sexually explicit messages to her on the social networking site as they make her feel uncomfortable. She wrote: "Dear Sweet Beliebers, Please stop telling me my son makes you horny. It's NOT something a mom wants to hear. Love Mom#ThingsYouDontTellMom. (sic)"