[OC X OC]
"I wasn't kidding Addison. When I said it was love at first sight when I first layed eyes on Sienna, it was true. At one point, she's all I had to live for. When you cheated on me, all I wanted was my daughter; and you kept her from me like the monster you are"
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"That boys and girls, and lousy interns, is baby shepherd. She's Mark Sloan's god daughter. Dr. Montgomery-Shepherd's daughter; Crossing her, is like asking for you life to end."
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"Sienna is the one person who can make Derek fall to his knees, she can also make him give up his love for Meredith"
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Madelynn Sienna Shepherd is the adopted daughter of Derek Shepherd and Addison Montgomery-Shepherd. Her godfather is the one and only, Mark Sloan.
After the scandal between her parents, Sienna is left to fend for herself. Her father left in a rush, forgetting about his one and only.
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"Mer, that's his daughter. He'll always pick her over you."
"That's not what I'm afraid of, I'm afraid of Addison wanting to come back and to be a family again."
--
"Well look at that Karev, someone actually likes you"
"If you screw this up, McDreamy will definitely find a way to kick you out."
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