Serena van der Woodsen (Blake Lively) and her endless legs are in for some competition during Gossip Girl's sixth season! Her new love interest, Steven Spence (7th Heaven’s Barry Watson), comes with some serious baggage...in the form of a drop dead gorgeous (and somewhat evil) sister.

Hollywood Life is reporting French model Zoe Aggeliki  who almost nabbed the role of Johanna Mason in The Hunger Games: Catching Fire has booked the part of Natasha, Serena's new public enemy number one! Sigh, this is like Beatrice Grimaldi all over again, except Serena is nowhere near as capable as Blair (Leighton Meester) is when it comes to out-sleuthing sister-in-laws.

Let's just hope that Serena and Natasha are able to make nice...then again, what fun would that be?

Source: Hollywood Life

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