Sebastian Severus Snape

(Adopted this story from riusOrionBlack1. Sebastian Snape is Harry Potter. I don't think Severus will name his son Harry if he had a son.) Meet eleven-year-old Sebastian Severus Snape, son of Severus and Lily (nee Evans) Snape. Lily picked Severus while they were still at Hogwarts instead of the git, James Potter. This story will be about the Snape family.