Hayden Panettiere on the cover of Cosmopolitan magazine April 2008. The Heroes star says “She does as many as my own stunts as they’ll let me do. Not a whole lot scares me.” Bravo! Then again at 18, we are all fearless, right? Is she dating Milo Ventimiglia? She said it’s nobody’s business. She ain’t telling you! But in general when it comes to hanging out with the boys, Panettiere admits she’s a major flirt!