This week, some of the biggest upcoming female stars surprised their fans by doing the unexpected. From panties to pot, these female celebs broke out of character and went down a shockingly different road. Check out pop culture's latest unexpected twists.

Kate Mara Goes Pantless

Alison Brie, known for Community and Mad Men, revealed she had a dark side while appearing on Chelsea Lately. Host Chelsea Handler was not surprised, however, as she already knew that the actress is a secret "pretty dirty birdie."

"See, you know that about me, and people in my personal life and history know that about me, but I never play risqué roles," Brie admitted.

Brie then chronicled what could have been her most risqué role yet: Mary Elizabeth in the 2007 horror film Born. Mary Elizabeth was a 21-year-old virgin who wakes up with a possessed baby growing inside of her.

"And while I'm having sex with this really hot Swedish guy I get possessed," Brie said. "While I'm super pregnant 'cause the demon fetus possesses me, and you know, I need penis."

If that's not naughty enough for you, check out Brie's closing move:

"And so I'm having sex with him, and while we're having sex I get possessed, and my demon fetus inside me bites his penis off, and he dies," Brie continued.

Despite having a history of killing her partners by munching on their penises, men still find Brie desirable. Last week, the 31-year-old actress took home the silver medal in AskMen's Top 99 Most Desirable Women list.