"I wouldn't want to promote teenage girls having sex. But the reality is, it's happening, and they're just a little too young to understand how careful they need to be. That's a big battle with me, because I'm 23, and a lot of my fans are eight years younger than I am, so there's a bit of a tug-of-war there. I want to set the right example and, at the same time, live my life."