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Heroes' Milo Ventimiglia and Hayden Panettiere denied their more-than-friends relationship for some time. Finally they stepped out, parading their coupledom, as they held hands and went on dates. Hayden's 19 and Milo's 31, so maybe they'll come up with a new superpower that closes the age gap. Parents everywhere applauded when Hayden and Milo called it quits in February 2009.