My Vampire's Heart — Terry Anderson

The Billionaire Vampire series is about a young man who had been kicked out of his home, and he heard about a party where he might meet a woman who could take him in. Well, he did, but it was a Vampire who happened to be a billionaire. In this book, Alan gets used to being there whenever Erica wants to have sex or drink his blood. In fact, he is in his room throughout the episode, either going through the closet, looking at all the nice clothes Erica has bought for him, or luxuriating in the fabulous bathtub, or just lying in bed. What a boring life, you might think, but the sex is good, maybe even great, and those endorphins keep Alan high as a kite. And there are promises of more of the good life to come. What more could anyone ever want?