It almost became a game with him, to see how much he could make her ass jiggle. Every time he slammed into her or pulled her back against his cock, it was like a tsunami of flesh would jiggle down to her thighs and up to her back, a record for him to beat.
But even after changing positions, he was still not comfortable. As a contractor, he had spent a lot of time working on his knees, but he had been spoiled by kneepads, and this concrete floor wasn’t very forgiving. Giving up his tight squeeze of Donna’s breast and his hold of the leash, he stood up and pushed her head down, redirecting her ass upwards. Now on his feet, he began driving straight down into her with his full body weight, piercing her asshole at a much steeper angle and making her scream continuously. At any moment, her asshole was just going to tear, she knew it, but the pain felt SOOOOOO good.
“Oh God! I’m cumming! I’M CUMMING!” she hollered with liquid arousal and semen trickling from her pussy with the tsunami-like waves of pleasure rushing through her body.
At the same time, Isaac had his final orgasm, emptying every last sperm he had into her rectal cavity. His stamina completely drained, he pulled out of her, yet her ass maintained an impressive gape. With her pussy, ass, and mouth having all served as Isaac’s sperm dumpster, Donna fell on her side and rolled onto her back, panting as heavily as Isaac.
Surprising her, he leaned down and very lovingly and tenderly kissed her out of the blue. “Welcome to the family.”
Chapter Eight
Having blown his load and acquired a new slave, Isaac decided to take another crack at his project. He found his luck suddenly on the upbeat with everything coming together perfectly and his tools working without the slightest issue. Not to mention he got Donna to give him a few special “parts” for his machine. He managed to complete it before the end of the day and was eager to show it to Holly and Alice, but formed a devious idea as he looked at his finished creation.
“Sorry girls, no sex tonight,” Isaac said with Holly and Alice stripping down and slithering in his lap on the couch.
Looks of horror crossed their faces like drug addicts hearing that their dealer was out of merchandise. Actually, they could legitimately be called addicts with Isaac as their dealer. Sex slaves without sex left them with nothing to do.
“But Master!” Holly whined.
Chuckling, Isaac wrapped his arms around his naked slaves and held them close. “Sorry girls, but I want to rest up tonight. You two can still play with each other, but I want to save my stamina and reserves for tomorrow.”
“What’s happening tomorrow?” asked Alice.
“I have a surprise for you girls, or two surprises to be more exact. But I need time to prepare it and it would be best if you two were out of the building. Holly, do you have work tomorrow?”
“Yes, I have the morning shift, from 6:00 am to noon.”
“All right, you can take my truck. And Alice, tomorrow at say… 11:00, you head down and have lunch at the diner. Just hang out with Holly for an hour. Then by the time you come back, your presents will be all set up and you can play with them to your hearts content.”
“What kind of presents are they?” Holly asked giddily.
“Let’s just say that there is a reason why I want to save myself for tomorrow. Get ready to have some of the best sex of your lives.”
It was a long night after that announcement, as the girls were pretty much bouncing off the walls at the thought of getting special gifts. Holly’s childishness never ceased to make Isaac laugh. She was like a little kid on Christmas Eve, and even on Isaac’s orders, she couldn’t stop begging him to spill the secret.
She started bargaining with him on things she would do for him if he told her, but he always deflated her attempts by reminding her that she normally did those things for him, would be overjoyed to do those things for him, or would probably even enjoy those things more than him. Her hyperactivity even spread to Alice, turning the normally quiet little kitten into a happy gas molecule.
It certainly didn’t help that Isaac had told them he wouldn’t have sex with them. In order to give them a way to vent their energy, he finally tossed them onto his bed and told them to have at it with each other. He made it an order and told them he would even watch while they did it, just for that extra incentive. Two hours later, he was wondering if the girls had been drinking Red Bull by the liter. It was Alice’s turn to use the strap-on, and he was using it to skull-fuck Holly with nothing short of fanatic brutality.
Jesus, they had better settle down before someone ends up needing a trip to the dentist, Isaac thought, watching as the dildo slid back and forth between Holly’s lips over and over again.
Just as planned, Alice left the apartment building before 11:00, heading down to the diner where Holly worked. With the two girls gone, Isaac got everything ready, eagerly waiting for two of his three slaves to return home. Back at the diner, Holly and Alice could barely think straight. Holly was eyeing the clock more often than usual and Alice could barely focus on eating. Isaac had promised them some of the best sex of their lives, and the only thing separating them from cumming over and over again were some ticks of the clock.
Finally, Holly’s shift ended, and the two girls wordlessly sprinted out to the parking lot and into Isaac’s truck. They screeched out of the lot and into the street with Holly trying to contain herself and keep her hands steady. The short drive to the apartment felt like the journey from the Lord of the Rings, but the girls soon returned home and sprinted through the apartment building, too impatient to use the elevator and simply zooming up the stairs.
They reached Isaac’s apartment, hearing a peculiar hum reach them as Holly worked her key into the lock. It was low and continuous, some kind of mechanical drone. They flung the door open, stripped off their clothes, and ran to the bedroom, feeling their jaws drop at the sight before them.
Isaac’s project was on the floor at the foot of the bed, about the size of a beer keg. It had an aluminum skeleton frame made from bicycles with top lined with the seat cushions of a junked car. Inside was the motor from the broken power sander, turning a gear with a riveted arm attached. The arm had a secondary joint, turning the rotational movement of the arm into a linear movement, and converting it into a piston. It came with a second gear with a second addable piston.
Bolted to the arm of the piston was a dildo that moved through an opening in the top, the same with the second optional piston, and secured to the front in an upright position was a wall-powered vibrator with a rubber head just slightly smaller than a tennis ball, one of the tools Holly used to train Alice.
Riding the device was Donna with the dildo moving back and forth in her anus at almost painful speeds and the vibrator bringing a very slow yet continuous flow of liquid arousal from her slit. In her mouth was a gag and her wrists were bound with the rope tied to the back of the machine. She was wearing a full-body fishnet suit and had clothespins on her erect nipples.