Edward has a sister and he's very protective over her. Leah has a brother and she's protective of him. so what would happen if Seth and Lilly, fell in love??

Lexie finally understands what her mother is going through. Not knowing her Father and brother very well, her mother had enough of it and left Lexie and Spencer to live with a new family. Little did Lexie know they weren't an ordinary family. She meets the wolf pack thinking they were just ordinary family friends that were always together. One of the kindest wolves in the pack, Seth imprints on her and everything was as according to plan. But there is another problem, Lexie reveals hidden secrets from her past, making her a very important person for the supernatural beings. The wolf pack must protect someone as precious as her. ( Yes, this is kind of a Twilight FANFIC But somehow very different. Please give it a chance thanks :D )