The Hobbit:
Thorin: You are the best friend of Fili and Kili, your family was slain by Orcs at a young age.
Kili: You are the niece of Glóin. Glóin is like a Father too you, he took you in after your parents died in Erebor when you were small.
Fili: You are the daughter of a talented smithy, that makes the most exquisite armor.
Thranduil: You are from Lothlórien, the other daughter of lord Celeborn and Galadriel, Lady of Light.
Bilbo: You are Thorin's younger sister, which I might add is pretty awesome. Yet it's hard to live in the majestically majestic shadow of your brother. #sorry not sorry
LOTR:
Aragorn: You are the sister of Legolas. (Didn't see that one coming huh?)
Legolas: You are the younger sister of Arwen, daughter of lord Elrond.
Faramir: Your brother is Frodo.
Boromir: You are the sister of Eówyn and Eómer.
Frodo: Your parents have sailed for Valinor, and you have been raised by Elrond.
Eómer: Boromir and Faramir's little sister.
So what did you think? Remember I take requests! Also, enjoy this GIF: