Keeping His Siren by Kiersten Fay

Naia DeVoe never mixes business with pleasure, but when she winds up in bed with the vampire she’s been hired to spy on, that rule gets tossed right out of his top floor luxury suite window. But Cortez is not a man to be trifled with; he’s rich, powerful and the hottest vampire club owner in town. From their first combustible night together, it’s obvious Naia is in way over her head…
So when Cortez’s interest moves beyond a one night stand, Naia must contend with her intense feelings for him while concealing her true motives.
As the leader of his clan, Cortez must be careful who he trusts. No one gets too close to him…no one, that is, until Naia. He can’t help but be drawn to the beautiful seductress who all but demands his attention. Is she the one he’s been searching for, or just another woman destined to betray him?