Kaylee DeFer on Gossip Girl in the show's fifth season. She just became a full-time cast member.
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Serena and Charlie are cousins ... or so we've been led to believe!
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Charlie or Ivy ... who knows who Kaylee DeFer is playing here!
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Serena in the second episode of Gossip Girl's fifth season.
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Gossip Girl Season 5 Episode 2 Quotes

OB GYN: Dorota, how are you?
Blair: She's fine. I'm Blair, Dorota's employer. I have a few questions.
Dorota: Just go with it. Is only way.
Blair: What about breast sensitivity? She practically screams when anyone touches them. I can hear her all the way in Queens.
Doctor: Perfectly normal.
Blair: Great. And how long until she can determine the father of her child? She's had a few one night stands with the staff of our building...
Dorota: Blair Cornelia Waldorf!

Dan: Blair, what's going on? I thought you were mad at me.
Blair: And I forgive you if you shut up and guard the door.
Dan: It's not like you to forgive me. Or run away from a feast.