MARY-KATE and Ashley Olsen have teamed up with top teen agony aunt and author Jessica Weiner to create a new advice column on their website. Weiner admits she was delighted when the Olsen twins asked her to help them create the new daily problem cyberpage, Real Girls, Real Advice - because she's convinced it will help a lot of tortured teens. The writer says, "We're gonna be tackling all the issues that make sense for girls in the world - their bodies are a big one but boys are an even bigger one." A VERY HUNGRY GIRL author Weiner insists she's the perfect partner for the Olsens in their new venture because, like Mary-Kate, she suffered an eating disorder.