You've heard about Isabella Marie Swan, well in this story, Bella has a non-identical twin sister called Annabella Rosina Swan. Like the book Bella still ends up being with Edward Cullen but they have the Denali sisters with them and Eleazar works at the same hospital as Carlisle. There are massive differences between Annabella and Isabella, for example Annabella easily becomes friends with the Cullen siblings and the Denali sisters and surprisingly Lauren Mallory, Annabella can build and fix cars and motorcycles, Annabella isn't clumsy, Annabella can play numerous sports. This includes the Jackson brothers, Annabella ends up with Michael. Pretend that Annabella and Isabella started Forks High school in June and they were 16 instead of 17 and their birthday is on August 29th