Tall, Dark & Hungry: Argeneau Vampires, Book 4 by Lynsay Sands

It bit: New York hotels cost an arm and a leg, and Terri had flown from England to help plan her cousin's wedding. The new in-laws offered lodging. But they were a weird bunch. There was the sometimes chipper, sometimes brooding Lucern, and the wacky stage-actor, Vincent. (She couldn't imagine Broadway casting a hungrier singing-and-dancing Dracula.)
And then there was Bastien. Just looking into his eyes, Terri had to admit she was falling for him - someone even taller, darker, and hungrier than the other two. She was feeling a mite puckish herself. And if she stayed with him, those blood-sucking hotel owners wouldn't get her!