The perfect slave

Leading you, blindfolded to a dark room. you assume it's a dungeon, I had told you we were gonna have some fun..

I offer you drink before we get started, you take it, unassuming. I have one as well, then I tell you to undress.
There's a stretcher the middle of the floor, for convenience sake of course. I help you in and put a blindfold over your eyes. I tell you to relax, focus on everything you're about to feel.

You doze off at some point.. that drink I'd given you made you sleepy.

Which is perfect! Because I'm performing an orchiectomy, using a scalpel to make incisions in your scrotum and removing both testicles.

How does it feel now that I've removed the centeral piece of your manhood? Soon your sex drive will drastically decrease, you'll lose muscle mass, testosterone will go bye-bye.

And now, finally, you'll make the perfect sexless slave.