My fingers trembled as I helped Mom strap the dildo to her Venus mons. "Strap it on tight, baby," she said. "I don't want it to slip while I'm fucking this worm's brains out." The worm she was referring to dangled from a pulley just a few feet away. Mom and I had teamed up to screw clamps on his nipples. A cage had been placed over his cock to prevent an erection. A ball-gag in his mouth insured his silence.
"Now bend over, darling, and I'll lubricate my cock in your pussy. I hope you're wet, otherwise this worm will suffer. Your pussy juice is the only lubricant I intend to use."
Mom's thick rubber cock slid smoothly into my creamy cunt. I groaned as she pumped it in and out. "Oh, yes, Mom, fuck me, please fuck me," I pleaded. The slave ogled us through eyes glazed with lust. He groaned as the wire of the cock-cage bit into his swelling member. I gasped as Mom pulled her cock out of my pussy and turned to the slave. A few more thrusts would have done the job. "Take the gag out of his mouth," Mom said. Even though I was only an apprentice, I knew that whenever a dominatrix inflicts pain, the slave must be able to invoke the safe word that brings an immediate halt to whatever punishment is being inflicted. Mom allowed a slave to use the safe word only three times before terminating him as a client. There was a long waiting list for Mom's services, so replacements were not a problem.
With a broad smile on her face, Mom guided the rubber cock between the slave's quivering ass-cheeks. "Now listen to me, scum. My cock is going up your ass one way or the other. If you relax, it will be much easier for you." The slave moaned as the rubber head stretched his anus and sucked in his breath when it popped into his rectum. Half of Mom's cock slid smoothly into his rear. "Thank my daughter for providing the lubricant. Thanks to her, my cock is all the way up your ass." Without lifting his head, the slave whispered, "Thank you, mistress."
"I'm enjoying his ass so much that I have decided to allow him the pleasure of a hard-on. Take the cage off of his cock, darling. Then remove the clamps from his nipples and give his chest a whipping. You need to practice your stroke."
The slave's unrestrained cock lurched to a full erection in less than a minute. It was a magnificent appendage fully eight inches in length and nearly as thick as my wrist. I sadistically tightened the nipple clamps one full turn before unscrewing them. Mom's "tools" hung from hooks along one wall. There were whips and paddles of all kinds, clamps, rings, even rat and mousetraps. Setting off a mousetrap with a guy's cock is great fun. After selecting a cat-of-nine-tails, I took aim on the slave's hairy, muscular chest. He grunted as I landed the first blow. "Harder, child. Really make it crack. You're showing him too much mercy, and that isn't what he's paying for. How is his cock, by the way?"
"It's at full hard, Mom. It really is a beauty. Are we going to use it?"
"There will be time for that later, baby. Now lay into that whip."
The clamps had made the slave's bullet-sized nipples ultra-sensitive. I took aim on one and then the other. Each time I landed a blow, his cock lurched all the way to his belly. His superb erection was proof that he enjoyed what we were doing to him.
"Mom, I'm afraid he's going to cum. Can we use his cock now?" I still had a lot to learn about the business. One thing a domme must never do is let the slave know that she desires him. Mom explained that to me in whispers as we removed the weights from the slave's ankles and lowered him to the floor.
"Now stretch out and keep your hands at your sides, worm," Mom ordered. "And you had better not touch us. If you dare to cum before I give you permission, I will punish you severely, so hold it back." She turned to me and said, "You can use him first."