Though she took a swipe at Rihanna's brazen promotion of marijuana on Instagram, this didn't stop Girls creator and star Lena Dunham from featuring cocaine in one of the Season 2 episodes. Assigned to try coke for an article, Hannah (Dunham) went dancing with a friend; it all turned into a bummer when he told her that he'd fucked one of the "Girls," Marnie (Allison Williams). Season 3 on HBO starts Jan. 12.
