Hard Line by Sidney Bell

Premed student Tobias Benton is making amends for his past. He keeps his head down, mouth shut and colors within the lines. But when his close friend Ghost goes missing, Tobias will do whatever it takes to get answers—including using blackmail to enlist some help. The last thing he’s looking for is romance.

Private investigator Sullivan Tate isn’t above a little breaking and entering to solve a case, but when Tobias catches him in the act, it’s almost game over. Their uneasy alliance only gets more complicated when Sullivan learns that Tobias shares his interest in kink. Mixing sex and work could kill Sullivan’s career, but Tobias’s acceptance of Sullivan’s darkest urges is nearly impossible to resist.

Side by side, Tobias and Sullivan spend their days searching for the truth and their nights fulfilling their respective fantasies. But the answers they seek are far more dangerous than they realize, and soon they find themselves fighting for more than just each other.