The Diabolical Contraption

I have a fantasy of being a kept slave of some English Lord who lives in an old brick manor house with ivy around the windows.
I'm kept in luxury and must always be ready to be used by the Master or his mates whom he shares me with.
Sometimes, he just wants me to suck his cock while he eats his dinner.
Sometimes, his lust is insatiable and he uses me for most of the night.
Sometimes, I hear cars crunching the gravel drive and the footsteps clipping on the marble steps up the huge front doors.
Master is entertaining guests. That means I'll be summoned and my naked and collared body offered for around for all sorts of depravity.
Then I know to be opened and lubed.
One night, I was being deep throated and fucked by 2 of Master's guests and Master suddenly called his butler.
"Bring in that new toy that was delivered," Smythe.
Smythe returns wheeling a scaffolding framework with straps and buckles dangling.
"Put Slave into it."
Suddenly, from being worked over by 2 cocks, I have nothing in me.
Master grabs my collar chain and I follow him on all fours across the plush carpet.
"Put your arms and ankles here, and here Slave."
In moments I'm all trussed up with my legs wide open and my wrists shackled wide apart. I'm in a kneeling position but completely suspended off the floor on slings of leather strapped under my belly and shins, across the framework of metal pipes. I'm immobilized.
A horizontal crossbar across my lumbar area forces me to arch my back thrusting my ass in up the air.
Master slaps my ass and pulls my cheeks apart.
"Ah, splendid. Just as I hoped. Now, let's see if it works."
He walks to my front pulling open his robe and revealing his huge cock. He adjusts a lever on the framework and I feel my head and arms lowering. He stands in front of my face, tantalizingly holding his cock in front of my mouth but just out of reach. When the angle is right, he locks the framework in place. I'm totally under his control.
"Open".
I open my mouth as wide as I can and almost immediately start to drool.
He slides his now hard cock into my mouth and slowly starts to thrust, pushing deeper into my throat each time.
I'm well trained by Master and love it when he uses this hole in this way. It's his to use as he pleases. I'm his toy, existing only for his pleasure. Sometimes if I'm lucky and please him well, he will let me take his whole load in my mouth. I live for it. It's my reward and he knows it.

Tonight is a new experience. I wonder what he, and his horny friends, have in store for me...

Master has special guests to whom he has triumphantly presented his latest diabolically perverted contraption. As his favourite and hottest slut, he honours me by choosing me to give it a trial run at an orgy he is hosting.
He has me tied up so I can't move and I'm slung in space, off the floor with a broad leather belt under my belly that holds my hips high while a thick crossbar across my lumbar region pushes down on my lower back forcing me to hold my ass up in the air, offering it for use by anyone.
Master has his cock in my hungry mouth and is slowly throat fucking me deeper and deeper as he gazes over my naked, constrained and squirming body.
He pulls his fat cigar from his mouth and says, "Here, Smythe, put this in slave's ass."
Smythe has complete freedom to use me as he will. He frequently orders me to prepare my slutty body to be used by him in Master's dungeon. He whips me sometimes before clamping me into all sorts of deviant equipment and uses me. He says it keeps me ready for master's pleasure.

Smythe comes around to my other end with the huge Havanna cigar in his hand. He squirts some lube into his other hand from a help-your-self pump bottle right next to my hungry hole. Smythe slops some lube around my hole and pushes 2 fingers inside me. I jerk against my restraints with the sudden invasion. He works 2 fingers in and out, then adds another, widening my hole to accept the huge cigar. Just when I don't want him to stop, he stops. Then I feel my hole stretch open as he inserts the cigar. It feels like a man-sized cock. He pushes it in deeper and I groan as Master picks up a gear pushing his cock deeper into my mouth with each pelvic jerk. The cigar sticking out of my ass, smoldering heavy smoke in the dim light, is obviously turning him on. I'm so pleased and proud to be the slut of such a great cock. I hope he will reward me by gracing me with what I lust for most - swallowing his full load. Drinking his life energizing juices are what I live for. I would die without my regular hit to slake my thirst for his potency in me. I am his willing prisoner while he supplies me this nectar. I know when I've displeased him as he denies me his thick, fragrant cum. I know will be getting whipped soon after. My Lord giveth and my Lord taketh away.
In a circle around me stand some of the highest peers in the land, holding their cocks and stroking their balls, waiting for Master to set them on a free for all, using my captured body, naked and imprisoned.
As his ramming into my throat speeds up, he holds his wine glass aloft and calls out, "Help yourselves gentlemen!"
Immediately I'm slapped on the ass and try to recoil in surprise. I cannot move but with each attempt, I feel the edge of the leather straps scraping against my naked skin. It's delicious and I push and pull again just to feel the sweet rasp. I'm trapped. Master is a genius. I cannot move. I surrender my body to its rightful owner. As a well-trained slave, my master chooses who fucks me. I'm his plaything.
The cigar is pulled out by Smythe and I feel a rush of different fingers jamming into my stretched hole. They are rough and I yearn for the rhythmic filling of hard cock rammed into me.
"Me first," calls Master as he unexpectedly pulls his cock out of my drooling mouth. I feel it's absence and wished he'd thrust it back in and not leave me hanging like that. He walks towards my ass. His guests move out of his way and soon master is standing in front of my welcoming and ready portal for his pleasure. He slaps both hands onto my buttocks. He owns me. What happens next is up to him. I'm only here to serve his lust. He pulls my cheeks apart to see how open I am. I'm gaping after that huge cigar and alls those grasping fingers.

Smythe reaches over and smears my hole in lube. I'm ready with anticipation. Master does not disappoint.
He pulls his long, thick cock up to my hole and pushes the head of his glory into my hole. He pushes and gently pulls back, feeling my tightness clinging to his rod. Then, in one long, slow push, he slides the whole length of his cock into my deep recesses. I feel him filling me up. I feel taken and owned. I fear I'm going to split open by Master knows just how hard and how fast to push his cock into me. My slut hole stretches to accommodate him and make Master feel welcome. His pubes are flat against my ass. He has chosen me. I'm filled and fulfilled.