Blood Rising, The Blood Series #2

Drop dead gorgeous alive, Matt Brenner has never lacked for feminine attention. Undead, he's even more potent. Immortality would be stellar if only he accepted his life as a vampire. Matt and fellow vamp Richard Hiatt created a empire catering to Vampire/Doms and willing donor/subs who trade sexual ecstasy for blood. The clubs have made Matt's existence manageable, if uninspired.

Inspiration comes in the form of Catherine Temple.

Matt's made it a rule not to get emotionally involved with human women, and he sticks to it. Cat is the woman who can entice him to break all the rules. When Matt is introduced to a controversial drug that allows him a human lifetime with Cat, it's too exquisite to resist.

Powerful elements of the vampire nation are against it, and though Matt tries to protect Cat, love must be stronger than death.