I'm sure you already know about all of the adventures that Harry, Ron and Hermione go on, This is what happens when you throw Ron's twin sister into the mix. Rebecca Weasley is one of Molly and Arthur weasley's eight children and one of two girls. Rebecca is the second youngest and is Ginny weasley's favourite sibling since she's the only other girl. Rebecca is one of Fred and George's proclaimed favourite siblings opposed to Ron whom they claim is tied for their least favourite alongside Percy.All Rights Reserved