That's What Family's For.

Kristan is the cousin to the Winchesters, but they don't know that. She wouldn't even know that if a certain angel hadn't told her. She used to get a few visits from Castiel, but he's stopped visiting lately. Kristan knows that something's wrong, not to mention that she just wants to leave her run down life for a while. She sets out to find her cousins, but when she discovers something new about her angel friend, she's placed in a situation that forces her to make a choice. Family or friendship? But, what is life without difficult choices?