Night Magic by S. King, L. Valente

Mixing magic and street smarts, bounty hunter and P.I. Aster Night always gets her man. Except when it comes to…literally getting a man.
Thanks to a curse placed on the Chastity coven centuries ago, she can’t get busy with anyone until she marries a man from the sanctimonious, boring, holier-than-thou Koda coven.
Yeah, no thanks.
Instead, she finds a way out of the curse on her own, breaking it with such a bang that she ends up naked with one sexy as sin man and making some major emotional and physical connections with his two, oh-so-alpha clan brothers.
Her love life is looking up, until she’s hired to track down a serial killer preying on witches, and learns her three new boyfriends were once romantically involved with one of the victims.
Now, she has to choose–her heart or her career.
Yes, Rake makes her laugh, Finn makes her knees weak, and Damon makes her feel safe in a way she never has before, but these men are too close to her case.
So close she’s afraid one of them might become a killer’s next victim…