Calling His Bluff by Charlie Cochet

Ryden Foster is a Marine scarred by a painful past of loss and hardship, but with the support of his Four Kings Security family, he’s finally healing. As he rebuilds his life, the only thing he enjoys more than his job is sparring with Jay Starling, Ward Kingston’s flashy executive assistant. Their longstanding feud is filled with sharp banter, weaponized romance novels, and a heat neither will acknowledge.
Jay is organized, efficient, and always in control, except when it comes to Ryden, the brash Marine with a talent for getting under his skin. When a Marine wedding and a client’s murder are linked, Jay and Ryden are pulled into something far more dangerous than petty rivalry. After a chilling encounter, Jay sees a side of Ryden he wasn’t prepared for, one his heart can’t ignore.
As Ryden and Jay join the Kings on a perilous mission, surviving means risking more than just their lives. It means trusting each other with their hearts.