At just 17 years old, she's already sworn like a sailor in interviews, talked openly about her penchant for watching sex tapes and exposed her breasts (nipples covered) during a concert.
But the "Gossip Girl" star is surprisingly thoughtful in a new interview with The Guardian, even if she is still talking about X-rated subject matter.
"I'm a promoter of masturbation," she told the British paper. "Don't sleep around – learn yourself first! Guys do, but girls don't. And that's why girls have so many bad experiences."
While not quite advocating abstinence, Momsen - who has in the past called her vibrator her best friend - pointed out that "you can know your body, know yourself, know what feels good. You don't have to give yourself away just to have sexual relevance. Because I don't think sex is something people should be afraid of. It's part of human nature, so I don't think it should be so shameful – particularly for girls and young girls."
