Switching Gears (Solitary Knights of Pelham Bay #3)
Claire Thompson

Jack Harris prides himself on being impervious to love. It’s been years since Jack walked away from the traditional leather scene, but he’s always maintained respect and affection for Alexei, the only man he ever trusted completely. Jack is confused by his own anger and restlessness. Alexei says he has the cure … Jack isn’t so sure.
Marcos Savakis has spent years in the scene, training submissives, his heart insulated from the process. At the request of a dying friend, he reluctantly accepts a new charge to train. The man he discovers waiting on his knees is the last person he expected, and the first person to touch his heart.