I stand on the stage excitedly, I've always loved magic shows and always dreamed of taking part in one, now I'm a magicians assistant. 

"And now for one last trick!" I excitedly wheel the long box on stage and wait as he opens it, showing to the audience, on his instruction I climb inside and lay down, my head the only thing visible as I am shut inside. I feel several boards slide in firmly pinning my body in place, preventing me from moving. I panic slightly, these feel a lot tighter than in rehearsal, I actually can't move. The audience watches in delight, thinking that my panicked face is all part of the act as the magician holds up his magic blade and stands over my helpless, trapped body, like a sinister villain in a silent movie. The audience gasps as he brings it down and the large box splits in two, each end rolling away slightly, showing that I've been cut in half. 

I look around in confusion, fear and shock. The trick went wrong, I didn't get safely out of the way but I don't feel any pain. I feel my top half move as I'm turned upright to face the audience and in a moment of relief I smile at them, showing that I’m still alive, not that I know how, the magician opening the lid of the box to show my upper body. He bows and the crowd cheers as the curtains close. 

Left alone I begin to worry, what is going on? None of this makes any sense. 

"Do you like the trick?" I look at the magician as he smiles at his work.

"W... what's happening? What have you done to me?" He smiles and opens the other box, revealing my lower half, the sight almost making me faint in horror at seeing my own severed body, my absent legs still moving in their restraints as I struggle slightly. I watch as he calmly reaches inside and pulls out my cock, I can feel his hand gripping it as he begins to stroke it, despite everything I begin to moan and my cock stiffens, he likes to do things like this when I’m restrained during rehearsal, I've always enjoyed being played with when tied up and never complained but how is this happening? As he holds my hard cock I watch in helpless horror as he pulls out a smaller blade, similar to the one used in the show and with one quick motion slices clean through by cock, although just like earlier I feel nothing, no pain, I do somehow still feel his hand holding my now detaching cock, moaning has he plays with its head, how can I still feel pleasure from it? 

"It's not a trick. I am a real wizard, I just use magician shows and tricks to pay the bills, plus I like having an audience applaud me. The blades I used to slice you in half and remove you cock right now are magical items, ones that curse those who are cut with them." Curse? Is this permanent? The magician smiles at my distress. 

"The victim will feel their severed limbs and they'll remain exactly how they were when removed, never ageing." He holds up my still hard cock.

"Never going limp. So unless you are put back together you will remain immortal and unageing, always able to feel what is done to the rest of your body." I'm left speechless in terror, desperately trying to gets my arms free, looking at him pleadingly as he walks up to my fearful face, blade slowly moving towards my neck.

"I have great plans for you, my special assistant." I scream in terror as the blade comes down, my cries quickly going silent as the blade cuts through my throat.

Several months later:

I move up and down on my master's cock, my head held in his hand, forced to take his cock as he uses me like a sex toy, his cum filling my mouth as I taste one of the only two things I ever consume any more, this being the more pleasant one. I say nothing, not that I can without lungs, as I'm place into his desk drawer and shut away, no longer needed, part of me happy to be used and get any attention, not to mention happy he didn't need the toilet, sometimes to lazy to get up he just goes inside me. 

I groan in pain as I feel his hand squeeze my balls, which he keeps on him as stress balls, ones he doesn’t need to worry about breaking and has done so a few times, squeezing them hard whenever he needs to or fondling them when bored. 

He found a use for most of my body parts, my crotchless ass lives in his bedroom and he enjoys spanking it and fucking it regularly, although due to my cock and balls being detached I can never achieve an orgasm, I feel all the pleasure as he fucks me but I'm never able to go over the edge, left in a constant state of denial, the desire, need and horny frustration slowly driving me insane. My cock also lives in his bedroom, he loves using it as a dildo, sometimes he even keeps it inside his ass as he goes about his day, the constant stimulation as I am constantly fucking his ass making me unbelievably horny. When not stored in his desk I live on a shelf high up and facing the bed, where I watch him play with my body or fuck his lovers, forced to silently watch as he and the many men he brings home get to cum, torturing me as I go eternally denied. 

My hands he kept, they are occasionally used to stroke his cock but are normally kept in a small cage like pets, my restless mind moving them around the small confines of their home. My body is kept in the basement, my master likes using it for target practice, regularly piecing it with throwing knives or slashing it with his whip, every painful injury causing me to scream in silent agony. My body healing immediately unable to die from the wounds. 

As for my arms, legs and feet, those are buried deep underground, forever lost, I still feel them, worms eating away at the constantly regenerating flesh, creating an endless feast attracting more of them everyday, the pain a constant in the back of my mind, almost lost in a the fog of denial. With them buried I can never be freed from my curse, my body never becoming whole again, my missing limbs forever lost in an unknown location, my master dooming me to my nightmarish existence, an eternal plaything, one that is forever horny and denied, unable to gain any relief, used to bring pleasure to my master through pain and suffering, forced to watch him cum and to clean his and his lovers asses, made to lick and worship his sweaty feet, my mouth a cumdump and urinal, my ass a sex doll, my cock a dildo, my hands jerk off machines and my balls crushed as stress balls. The most terrifying thing about it all though, I'm actually starting to enjoy it.