Dragon Kin: Fire in the Sky by Michelle Hasker
Selena's had the hots for her boss Kyden since she started working for him. There's something about him that just drives her insane with desire. It doesn't matter that she's too fat and too dark for him, she wants him desperately. And it's gotten worse over the last few months. This month she even found herself ready to masturbate in her cubicle. Kyden's ordered her to stay late to work tonight, just the two of them, but she's not sure she can control the desire if they're alone in the building. Or if she wants to.