Penn insists his onscreen sister is just misunderstood and is acting like a typical teenager. What do you think, BFFs?

Taylor Momsen has been an active member of the Brat Pack in recent months, dissing other celebs like Justin Bieber, Rihanna and Miley Cyrus, chain-smoking cigarettes, admitting to burning her dog’s balls, calling her band, The Pretty Reckless, the last remaining ‘authentic’ rock group and has even said she doesn’t get along with her fellow Gossip Girl cast members! However, her onscreen big brother, Penn Badlgey, says that Taylor is totally misunderstood and simply acting her age!
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