Lena Dunham remembers her "first time" in a new campaign ad for Barack Obama. "Your first time shouldn't be with just anybody," says the Girls creator and actress. "You want to do with it a great guy." Relax: she's talking about voting. "My first time voting was amazing," she says. "It was this line in the sand – before I was a girl, now I was a woman." Voting is a powerful thing.