Bleeding Hearts

(Marauder Era) Erin Norton is a vampire. Remus Lupin is a werewolf. An unlikely pair to say the least but a close pair nonetheless. Trusted with the other's secret, and inseparable until they're placed in rival houses. Severus/OC/Sirius Mostly Sev/OC (Goes into books/movies way later on in possible sequel) (I'm sometimes really bad at summaries and this is one of those times.)