Part 1:
Master didn't explain what was going to happen to me, he didn't need to. I simply obey.
I'd been in here for a while. It was pitch black, I was surrounded by cold hard metal. Heavy shackled were attached to my wrists & arms with a steel collar wrapped around my neck.
My head was covered in a thick rubber hood, two tubes ran up my nose and a lump of rubber filled my mouth.
Each movement I made dragged and rattled my chains. As I started to get hard I felt spikes digging into the tender flesh of my cock. I knew he'd planned for this, each movement would turn me on, forcing me to hold still.
I heard a scraping of metal, feeling cool air rush across my chest. My head was pulled forward by the collar, and the gag removed from my mouth. "Thank you master" I said, grateful for the lung full of cool air. "Open" he commanded. I opened my mouth wide, feeling a large ring pushed behind my teeth and strapped in place. " Keep your head forward and use your tongue."
With a slam of metal he was gone.
The position was awkward, with my arms bent to keep my head where he'd ordered.
I could hear muffled discussion outside the box. Finally a hard cock pushed forward into my mouth, thrusting into the back of my throat as I worked the shaft with my tongue. He altered his pace, making it last, punishing my throat for as long as possible. When I finally felt and tasted him cum in my mouth I tried to swallow. Instead I felt it run forward, out of my mouth.
I moaned, knowing I'd be punished for failing to swallow. Before long there was another cock, and another. I lost track of how many, it seemed never ending. Each load ran out of my mouth, no doubt a tally was being kept and this crowd would make me suffer for each one.
Finally, my arms gave way. As my face moved downwards with my failing arms I heard a cheer outside. Before I could think about what that might mean my chains began to tighten. First forcing my collar up, and my mouth back in position, next my arms were pulled up high behind my back.
I heard master, like a whisper in my ear. "Well done. You almost managed everyone before you gave up. I've promised the guys they can use your throat as many times as they like, so you might be there for a while. After that, well... You'll find out later."
With that, I felt another cock brush against my lips. It was going to be a long night.
Part 2:
I had no idea how long i'd been trapped in this painful position. I finally felt all of my chains loosen, leaving me to collapse onto the floor. I huddled there, stretching out as best I could in the cramped confines.
I soon found myself shifting from one uncomfortable position to the next. Even with the chains leaving me completely unrestricted, there were only hard surfaces to rest against.
But somehow it felt nicer now. Before the metal had been cold to the touch, but now it seemed to hold a gentle warmth.
I was suddenly startled by a scraping of metal on metal. My gag was removed, followed by my hood. The lights were intense, almost painful, forcing me to shut my eyes against them.
"I know that must hurt your eyes" master said to me. "But this box will be used for you a lot in the future, and you will never be allowed to see its insides. There are also a lot of people here, you know some of them. They will get a lot of use from you, they all know who you are. You will NEVER ask, or make any attempt to find out who they are."
I kept my eyes firmly shut for a few minutes, fearful that I might see something master had forbidden. When I opened them I realised that I was now in complete darkness.
A loud voice echoed inside the box, deepened and distorted so that I could not make out who was talking to me.
"These speakers will issue instructions, you will obey without question. We will see what you do in there."
"Hands behind your head!" The speakers barked. I hurried to obey, my head full of excitement, arousal and fear. A number of metal objects clanked down to the floor around me. "These are the keys to your cuffs and collar. Remain as you are. Say 'One... This object is a toy for its masters. It hopes to suffer and be used for their pleasure."
"One. This object is a toy for its masters. It hopes to suffer and be used for their pleasure." I repeated.
"Two." The voice boomed.
Understanding what was wanted of me I continued.
"Two. This object is a toy for its masters. It hopes to suffer and be used for their pleasure."
"Three. This object is a toy for its masters. It hopes to suffer and be used for their pleasure."
"Four. This object is a toy for its masters. It hopes to suffer and be used for their pleasure."
"Five. This object is a toy for its masters. It hopes to suffer and be used for their pleasure."
"When you reach 100 you will search for the keys and unlock your cuffs and collar."
I continued to count, feeling the repeated phrase focus my attention. With each repetition I yearned to find out how they would use me next.
As I began to speak for the 10th time, a torrent of ice cubes rained down on me, causing me to jump.
"Remain still!" the voice echoed in the box.
I shifted back into position and continued.
"Eleven. This object is a toy for its masters. It hopes to suffer and be used for their pleasure."
"Twelve."...
Each 10th repetition another load of ice was dumped down onto me. Beginning to shiver, I fought to retain my position, to keep going.
When I finally reached 100, and felt one last shower of ice rain down on me I began digging my way into the ice, clawing desperately around to find the keys they had dropped.