Bonnie finds out she has a sister. She was born in 1993(I'm gonna pretend Jamie doesn't exist). Who has a different father than her. The sister in question actually comes looking for Bonnie claiming she can help out. Bonnie and the girl bond and Bonnie becomes her surrogate mother. She looks a lot like Bonnie accept she has blue eyes. She also has red hair ( Which is inherited from her father). Ellie has actual powers of her own being half-witch and a adoptive father just died her real father didn't want her, Abby didn't think she can handle her. Ellie is kind of developed for her age meaning she kind of busty. She is just like Bonnie fiercely loyal and down to earth. She can sing and dance. She thinks of Damon as her big brother. She's allergic to strawberries. She's gets insecure when people stare at her. Abby is going to be mentioned a lot i doubt she will appear. Klaus and Elijah will appear and probably some of the other originals. Ellie and Bonnie learn a lot from each other and they began to finally understand what it means to have a family. Bonnie is stuck in a love triangle, so is Caroline. Bonnie didn't really have problems accepting Ellie, she got welcomed with open arms by Bonnie and Bonnie's father.
Tell me if I'm going some where with this! Ellie/Elijah Bonnie/Damon Stefan/Elena Tyler/Caroline/Matt