Believe It Or Not, I Do Care About You

(And I'll Make Sure You Know That) "You can hit me all you want," Sirius growled, staring his father hard in the eye. "But you will never lay a hand on Regulus ever again." When Sirius discovers that his father has been abusing Regulus, he realizes that he hasn't always been there for his little brother. But that's going to change. AU, child abuse