Sienna Margot's new job should have been a dream come true—until her arrogant, drop-dead gorgeous boss, Kaemon Mace, turned it into her biggest nightmare. With his devilish charm and infuriating attitude, Mason seems to take pleasure in pushing all of Sienna’s buttons. He’s the man she loves to hate—until one heated encounter blurs the lines between enemies and something far more dangerous. By day, they’re at each other’s throats. By night… it’s a whole different story. What started as a battle for control becomes a fiery, no-strings-attached arrangement that Sienna swore she could handle. But as the passion intensifies, so does the risk of falling for the one man she promised to never let in. Can Sienna keep her heart intact while playing with fire, or will she find herself in deeper than she ever imagined?