Sappho's Crimson Lounge

After Cassy is turned into a vampire, she decides to struggle out on her own. But when she meets Sophia, the most powerful vampire in the city, Cassy realizes that there is more to being dead than she thought, and before she knows it she is caught in a web of politics, sex, and appetites she's never known before—all of them at the tips of Sophia's capable, sensual fingers.