“Today,” he said, “I thought we’d try the nipple clamps out, some rope, and a buttplug. Okay?”

I nodded.

He reached for the rope we’d bought at the sex store, took a pair of scissors from another bag. He quickly pulled out the length he needed, snipping it off.

“Stand up,” he ordered. I obeyed instantly. I was going to be good for him today.

“Turn around,” he said. I did; I was now positioned in such a way that I was facing away from him.

“I’m going to tie your hands together,” he told me.

“Clasp them behind your back, please.” His tone was even; the tone of someone...