Before You Break by K.C. Wells, Parker Williams

Six years ago Ellis walked into his first briefing as the newest member of London’s Specialist Firearms unit. He was partnered with Wayne and they became fast friends. When Wayne begins to notice changes—Ellis’s erratic temper, the effects of sleep deprivation—he knows he has to act before Ellis reaches his breaking point. He invites Ellis to the opening of the new BDSM club, Secrets, where Wayne has a membership. His purpose? He wants Ellis to glimpse the lifestyle before Wayne approaches him with a proposition. He wants to take Ellis in hand, to control his life because he wants his friend back, and he figures this is the only way to do it.

There are a few issues, however. Ellis is straight. Stubborn. And sexy. Wayne knows he has to put his own feelings aside to be what Ellis needs. What surprises the hell out of him is finding out what Ellis actually requires.