Sure

"Sure, I can agree with that."

"Perfect" the woman says. "My name is Doctor Hill, and the treatments will be administrated by a machine. You will be watched by other doctors and nurses, and you may at any time stop the treatment by shouting 'Emergency Stop'. Do you understand?"

"Yes."

"Then let's get started." She presses a few buttons on a panel. A robotic arm comes out of the floor, watching you with a glowing red mechanical eye.

"GREETINGS John. IT IS TIME TO ADMINISTER YOUR TREATMENT".

You see another robotic arm come out of the floor. Instead of a claw, or an eye is a synthetic vagina, matching the same white colour as the rest of the machines. With machine-like precision it attaches itself to your cock. Slowly lowering itself. Your arms and legs are shackled to the bed.

"DO NOT MOVE. CALIBRATING."

You feel the machine around your cock. It's surprisingly wet, As it begins to move, you feel like you're fucking a real vagina. It squeezes around your cock, and you feel the bumpy sensations as your rod rubs against it's ridges. The speed is slow at first, but it increases more and more. Even without visuals, you're overwhelmed by the physical pleasure on your cock. You shout as you fill the machine with cum, moaning with pleasure.

"SEMEN EXTRACTED". The computer says. The robotic arms go back into the floor.

"How was that, Mr. Doe?"