Keeping It In The Family (смешанная)

They had always been close, the Black sisters. Bellatrix and Narcissa were the closest, if the underlying sexual tension and lingering looks were anything to go by. Between Bellatrix's wild nature and Andromeda's slow burning passion; Narcissa has to keep her wits and focus on her duties. Why concern yourself with people like the Malfoys when you could just keep it in the family?