A new client was due to arrive in a few minutes, so I took a moment to scan the studio, ensuring everything was clean and orderly. The name, I had to admit, was somewhat ostentatious, but according to the estate agent who had shown us around, that had been its original purpose.

Our home was a traditional bungalow set on a spacious plot. At the far end of the garden stood a building originally designed as an artist's studio. Though its walls were windowless, expansive north-facing roof lights bathed the room in a gentle, diffused glow.

Our business was very different. My wife, Mistress G, was a professional dominatrix. I was her assistant and her submissive slave when I was not assisting. Switching from one to the other was easy; I loved both roles, indulging my sadistic tendencies towards clients and submitting to Miss G's desires afterwards.

I heard the entrance door open and turned to face my wife and our new client, a good-looking man in his forties.

"This is Bent."

She turned around and left me alone with him.

"Okay, Bent. I am your master. You must address me as Sir."

He looked at me and stuttered his reply.

"Yes, Sir."

"Has Mistress G given you the release papers to sign?"

"Yes, Sir."

"Then, you know you have consented to complete submission and understand this will involve pain." You have agreed a safe word and a safe signal with Mistress G.

"Yes, Sir."

I pointed to a chair to one side.

"You will strip naked, remove everything. And then stand beside that chair. Leave your stuff in the drawers beside the chair."

"Yes, Sir."

I watched, admiring the trim body revealed as his clothes came off. The last item was his underpants, and there was no mistaking the tent sticking out in front of him.

Finally, he stood completely naked as ordered, his cock standing erect against his abdomen.

"Hands together, behind your back."

I stood behind him, holding a pair of regulation handcuffs that I slipped over his wrists, clicking them tight against his flesh. I moved to stand in front of him, then took his cock in my hand and gently wanked it up and down a few times. Bent groaned and thrust his hips towards me. I let go of his shaft, then swung my hands rapidly, side to side, smashing against his erection every time.

Bent screamed in agony and bent double, trying to escape my swinging hands.

"Sit down on the chair. Now!"

Panting heavily, he complied.

It was time to prepare him. Close to the chair was a set of drawers and small cupboards. I went to one unit and pulled out a nice penis gag. Five centimetres deep, it fitted nicely in his mouth when I ordered him to open wide. With leather straps buckled tightly at the back of his head, Bent could offer no more than muffled grunts.

Next, I found a leather hood and slipped it over his head. I pulled the zip down at the back, and then he was covered; only his eyes were visible.

"Stand up. Come with me."

I led him across the room to where a long leather rectangle, with chains at each corner, lay on the floor. I removed his handcuffs.

"Lie down here."

With him flat on the floor, I lifted his limbs, one by one, and clamped them to a cuff attached to one of the chains. Turning to the nearest wall, I pressed a button, and motorised winches tightened the chains before lifting the sling that held his torso off the floor. When he was about my waist height, I stopped the motors, and he hung there, swinging slowly.

I went back to the drawers and pulled out a small canvas bag that I carried across to Bent, laid it on his stomach, and leaned over his face, looking into his eyes.

"This bag holds the instruments of your torture today."

A short grunt was his reply.

First out of the bag was a bulbous, shiny metal anal plug. I held it up in front of Bent's eyes.

"This is going in your man cunt, Bent. I'm sure you will love it."

I tried to read his eyes, and I was sure they widened in fear. I rummaged inside the bag and found a tub of lube, removed the top and used a finger to wipe the stuff all over the plug.

I moved along his body until I was able to see his eyes, and then I pushed hard on the plug's base.

If he had been able to scream, the sound that came through the gag would have carried miles. Bent's eyes screwed tight in an attempt to dull the pain. I waited until they opened, and he looked up accusingly.

"It's going in, Bent. Relax your sphincter muscles."

I pushed again, and this time, it slipped in until the base was against his skin.

"Good, I'm sure you like the feeling of being so full."

Next out of the bag was a small controller with two wires dangling off one end. I laid the controller on one side, then took the wire-end thin connectors and pushed them into the plug base. Then, I took hold of the controller, turned the power on, and set it to level two. The plug oscillated in and out, driven by the effect of the current pulsing through his anal muscles.

"Do you like this, Bent?"

He nodded, eyes smiling through the mask holes.

From the bag, I took a long steel rod and held it up in front of his face.

"Do you know what this is?"

Bent nodded.

"I'm sure you are familiar with a sounding rod. You have three holes, and this is going to plug the third one."

After dipping the rod in lube, I squeezed his cock head to open his pee hole and slipped the end inside, gently pushing it further down. Bent started to moan quietly, a sound I took as being of pleasure and contentment. When I felt the barrier of his bladder entrance, I pushed harder, and then it slipped inside.

I rubbed his cock gently, enjoying the sensation of the hard softness characteristic of an erect member, then took another controller with wires that ended in crocodile clips. I attached one clip to the protruding end of the rod and the other to a loose part of his ball sack.

Then, I turned it on and set the power level to two, just like the other one on the plug.

Bent writhed and flexed on the swing, enjoying the pulses of pleasure coursing around two of his three holes.

The last item in the bag was a padded blindfold. I leaned over Bent's face, stretched the elastic headband to fit over his head, and then dropped the padded eyepieces in place.

"Sweet dreams, Bent."

Standing beside him, watching his obvious pleasure, made me horny. With one hand, I opened my flies and gently rubbed my stiff shaft through my satin panties. With the other, I held him between thumb and index finger, gently masturbating his cock.

My reverie was disturbed by the sound of the entrance door opening and closing quietly. I turned to see Mistress G approaching, and I carefully zipped my fly closed.

"Mistress, he is ready."

She nodded at me as I moved aside to let her stand in my place. She took hold of Bent's shaft just as I had, between her thumb and index finger. Then, she dropped it onto his tummy and took hold of the controller for the wires fixed to the rod and his sack.

"Take the other one, Slave."

We stood there, each holding a controller, while our unsuspecting customer lay and wriggled in bliss.

"Five seconds, Slave."

I nodded, acknowledging her instruction.

Level two, the setting he was enjoying, was the best for arousal. Level five or six would bring him to orgasm in less than a minute. Level ten was the maximum.

"Now."

We both increased the power to level ten. The result was instant and impressive. Bent's whole body went into spasm and lifted off the sling. So, instead of his arms and legs extending above his torso, their positions reversed, and his limbs supported his body. He screamed a long, low rumble in his throat that managed to escape the gag.

Mistress counted.

"One, two, three, four, five."

Then, we lowered the controls to level two again. Bent collapsed onto the sling, moaning in pain.

She waited until he was quiet, and then we repeated maximum power. The result was the same – a great spasm accompanied by screams of pain. Ten times, we repeated the exercise – ten great spasms, ten screams of pain.

We stood in silence, watching Bent's chest rise and fall as he tried to cope with the accumulation of pain and exhaustion. Mistress had turned bright red, a sure sign of sexual arousal. She was a real sadist, always turned on when torturing some poor soul. Her hand was between her legs, rubbing her pussy frantically through her clothes. I kept my hands away from my throbbing hard. I would be in trouble if she saw me and punished me for disobedience if I came.

My mistress had no such constraints. I watched her frantic rubbing until the moment of orgasm when she had to grab hold of one of the sling chains to stop her from falling as her orgasm hit.

I was in awe of her and knew this was just the start of a journey into hellish pain for Bent, one that I would have to share because she was my mistress, and I had served my purpose as her assistant for the day.

._.

Well, I thought I had. Mistress gave me one of her looks, a facial expression of contempt. I had enjoyed playing the dom with Bent, but I know my place.

"Get me the black eighteen-inch special."

"Yes, Mistress."

I scurried across to the toy store and opened one of the drawers. There it lay, a magnificent black dido, ribbed and covered in nobbles. Thick as my wrist, an object of beauty and terror. I knew what that felt like, the nobbles tearing my anus apart deep inside my bowels. Oh, God, I will feel Bent's pain.

Reverently, I lifted it from the tray and carried it to my mistress.

"Unhitch the sling."

The corners of the sling were fixed to the chains by four shackles. I unscrewed the pins, leaving the chain ends to swing free.

Mistress used the controls to lift his torso upright, then his legs. Bent swung gently, in something like a sitting position, nearly all his weight on his outstretched arms.

"Take the plug out."

I crawled under him and pulled the wires out before grasping the plug base and yanking it out, and his whole body shuddered in response.

"Put Goliath in position."

She had named it, and it was appropriate. I smeared lube across the end and shaft, almost caressing the smooth surface, remembering how it felt entering my body.

Crawling beneath Bent again, I lined Goliath up with his sphincter and then pushed down on the tip to squeeze the suction cap at the base. I reversed my crawl, leaving my arm stretched out, just touching the monstrous dildo.

"I'm ready, Mistress."

Bent started to descend. My job was to ensure the tip stayed aligned with his sphincter. When the two touched, I took my arm out and sat on the floor, waiting for the moment of penetration.

Much thicker than the plug, I watched his flesh deform as his weight pushed down on Goliath and heard him grunting behind his gag, unaware of the massive intrusion to come.

The inevitable happened when there was a sudden jerk as Goliath forced its way past his protesting muscles, and eight inches disappeared inside him. I saw his buttocks clench and heard the muffled scream behind his gag.

Bent was impaled on Goliath.

Mistress kept on lowering him until he was just six inches above the floor. Oh God, a foot of that thing was inside him! Mistress G had never taken me that far.

She took hold of the controller for the wires still attached to the sounding rod and his sack. A quick twist to level ten made his whole body spasm in pain, writhing around Goliath. Previously, he was able to flex around on the sling, but being impaled meant there was no escape this time.

There was no five-second rule now; she left it on full blast and gradually lowered him down until he was just an inch off the floor.

I don't think I had ever seen a client in such pain, but that was what he paid for. Mistress knew the safe signal, and she was meticulous in watching for it, but Bent kept soaking up everything. What a pain slut he was!

Mistress was soaking it up as well, her fingers buried in her crotch, frigging her clit to another orgasm. When she came, she sank to her knees and bent forward, her whole body shuddering in delight.

The two of them were getting satisfaction, but poor me, I just had to be there and try not to touch myself, but it was getting difficult.

When she had recovered from her orgasm, Mistress G reduced Brent's setting to a low level. I watched him gradually quieten, no more than the occasional groan behind his gag.

"You look frustrated, slave."

I nodded, for indeed, I was "extremely" frustrated.

"Well, it will help if you get that plug in your arse."

I picked it up from the floor, still smeared with a combination of lube and Brent, lined it up with my sphincter and pushed hard. My body was ready, and it slipped in. My anus was full. It felt good.

"Stand still while I wire you up."

I felt her fiddle around, then the current flowed, and my hole became a pleasure zone.

Mistress raised Bent until only around six inches of Goliath was inside him, then I lay on my back and wriggled under him until I felt his cock brush my cheek. I shifted around so that the head and protruding rod were in my mouth. Mistress then lowered him until his flesh was pressing all over my face, and his cock was deep in my mouth.

The current from my plug increased to perfection. I knew I would cum quickly. At the same time, my mouth became part of the circuit feeding Bent's cock, and a delicious tingling there added to my pleasure.

It wasn't long before Bent went into a massive orgasm, his body shuddering above me. His cock jerked in my mouth, followed by cum flowing down the rod, dripping into my throat. Lastly, my orgasm hit. I felt a massive surge in my loins as my cum shot along my shaft. Grunting and rolling around, my needs were satisfied. It had been a good morning's work.