The Siren's Song

Narcissa Black always looked down on those she deemed to be beneath her, but having taken it too far, she finds herself cursed into a form she had mocked. After many years alone, only able to watch the castle from afar, she's shocked when two wizards are drawn to her. She has to fight the nature of her new impulses to keep them both safe. Regulus/Narcissa/James, Remus/Sirius.