To Kiss or Not to Kiss... Mary-Kate has a great new hobby--acting She's got the starring role in the next school play. And she's thrilled to find out that her leading man will be Ross Lambert--a supersweet guy who just happens to be Ashley's big-time crushAshley is excited for her sister--until she finds out that Mary-Kate has to kiss Ross onstage There's no way that's going to happen. Not if Ashley can help it.