Blood Siblings
Status
Summary
AU. "Why do you defend her so much?" "Because she is my sister, she could kill a thousand men and she would still be my sister." Katherine Pierce is actually Princess Katerina of Asgard and Thor and Loki's baby sister. She hasn't seen them in over 500 years and now she's aging and dying and her brothers are determined to save her life. But dealing with family isn't always easy.