Yes.

John nervously took off his clothes. He started with his suit jacket, then his tie and shirt, then his trousers, shoes and socks. He stood in his boxers looking anxious.

"The shorts too."

"Do I have to?"

"If you want to please your girlfriend, you'll have to please me first." Her voice dripped suggestiveness.

John did as he was told and then put his hands over his wedding tackle.

"I need to see it erect."

"Do you really have to?"

"Yes; otherwise things could get... painful."

Ann knelt in front of him and took his balls in one hand. With the other she gently massaged the base of his penis.

"That's better. Seven inches, from the look of it. Hold that pose."

John stood there, mortified but also fascinated by watching Ann's hips move as she looked through a cabinet. She finally took out a metal cage like one of those used on old-style emergency lights.

"What's that for?"

She set the cage over his penis and scrotum, then closed it and put a tiny padlock on the closure. After that she wrapped a thin leather belt around his waist to hold it.

"What the hell is this?"

"It's a strap so the cage doesn't pull too hard, especially when you're too hard. Now, reach around back and see if you can unstrap it."

John did as he was told; this was a little too kinky for him and the sooner he removed it the happier he'd be. As he fumbled ineffectually with the buckle he heard a faint 'snap' sound and felt pressure on his wrists.

"Wait! What?"

"On your knees, please." She tugged the cage downwards and his legs folded. There were two more 'snap' sounds and his ankles were restrained. Finally she pulled his hair, forcing his head back until the metal collar was snapped in place around his neck.

"Let me out of this! It's way more than I was looking for!"

"It follows Sarah's instructions to the letter. Now wait here while I arrange for delivery."