A scared girl mated to 4 terrifying vampires

When Alice arrived back in Forks to take Bella along with her to Italy in the hope to safe her brother from the Volturi, they weren't expecting Marie, Bella's sister to come along as well. Even less did anyone expect the young Swan girl to get dragged into a whole new world. Maybe not as new to her as the rest thinks, but still her life is going to take a whole 180.
Maybe the shy and usually quiet girl gets a true chance of becoming happy. That is if her mates will accept her and she finally overcomes her fear of big men.
How will her mates react when they finally find their true mate who seems to be petrified of them?
Will they accept her and even help her find peace and true happiness?
(Mates: Caius, Demetri, Alec and Felix)
Plot twist start at chapter 20