Howl — Cynthia Rayne

To escape madness, Scarlet Rhodes made a magical pact to serve as a blood slave and sexual plaything to Hayden, a powerful vampire. But while Scarlet is a treasured pet, she's never captured his heart. When Hayden bids her to sexually service a handsome werewolf named Rand Stamper, she finds herself falling for him. In and out of bed.

Rand has come to Fairfax Manor to secure the southern hunting grounds for his pack, but finds himself distracted by the vampire's blood slave. Their passion is undeniable, and he has the urge to take her with him and make Scarlet his own.

Seeing his sexy human slave with the swaggering wolf awakens feelings for Scarlet that Hayden wasn't even certain he was capable of anymore. But he can't blame his pet. Despite the unfamiliar feelings of jealousy, he finds himself drawn to the wolf also. If he plays his hand right, in the end he might be able to keep Scarlet and the werewolf for himself.