During these past ten years, millions of Harry Potter fans have secretly hoped that romance would bloom between Daniel Radcliffe and Emma Watson, now 21. If Harry can't end up with Hermione in fiction, at least he can in real life -- right? But Watson says that she and Radcliffe (pictured at the New York premiere of Harry Potter and the Deathly Hallows: Part 2 on July 11), having grown up together, think of themselves "very much like brother and sister." In an interview with Vogue, Emma recalls how she and Daniel would vent their teenage relationship woes to one another. "Particularly funny were the moments when we would help each other compose texts to the most recent flames in either of our lives (not too flirty, but not too subtle either!)," relates Watson, who recently flew to New York to surprise Radcliffe in How to Succeed in Business on Broadway. "It was certainly a case of the blind leading the blind, but it was extremely funny."