The first time Nikki heard the sound of metal sliding against metal, it wasn't fear that ran down her spine-it was heat. It was the moment she realized restraint didn't always mean losing control. Sometimes, it meant being freed from it.

Diesel was unlike anyone she had met. Rough around the edges but precise in every move, his hands spoke more than his mouth ever could. In his presence, the world slowed until it was only the sound of breath, of heartbeat, of chains brushing against skin.

What began as curiosity would turn into a hunger she never knew existed. In his world, pain and pleasure weren't opposites-they were the same language. And he would teach her every word.