Leah left after Bella gave birth never sparing a look, thinking Bella died, gone for a few decades she heads back when her mother is dying and finally meets her imprint, the last person she ever thought it would be. Femslash
Jacob never imprinted on Renesme, Bella lived, turning into a vampire. All events were the same besides Jacob imprinting, Seth stopped the wolves from attacking that night when they went for Renesme he couldn't help the weird protective sisterly bond he felt with her. The wolves didn't understand it either but accepted the baby as their own because of their nature. They beat the Voltouri the same as in the books, and lived as they normally did traveling the world with their endless pursuit of high school diplomas... the Cullen pairings are all the same as the books
All grown up, it's Renesmee's eighteenth birthday and Edward has asked Jacob to keep an eye on her as she goes out on her first date with her college friend, Alex. When things turn bad, Jacob steps in, and its only then he realises Ness's feelings for him. Does this start their life off together, or something completely and fully different?
Entry for the facebook fan page, Stephenie Meyer, for the contest: Imprinted. Came in at first place.