Barbara and Roy's neighbour had won the opportunity to fuck her during her online orgy. After the fuck they had agreed to meet as neighbours to explore their fantasies and fetishes.

When they went to visit, Jenifer was home alone. She showed them their dungeon in the basement.

"Do you want to try our fucking machine, Barbara?" asked Jennifer. "It should make you cum in less than ten minutes."

"Roy, would you strip me naked, strap me to this frame, and use the flogger on my tits? Don't hold back, I like to really feel them punished. You can give me forty lashes if you like. Make me squeal for you."

Jennifer stripped Barbara naked and got her to kneel on all fours in front of the machine. She strapped her arms and legs to the base so she could not move away and fitted a ball gag over her mouth. She moved the machine up behind her and adjusted its position. Rubbing some lubricant into Barbara's cunt, she slid the machine's dildo into her. Jennifer moved a second attachment, something like a scrubber, up tight to her clit and stood back to admire her handiwork.

"I do not last for more than five minutes on this one, then I just cannot stop cumming for the next five minutes. The machine will start on its own after a few minutes and run for the full ten-minute cycle."

Jennifer undid her blouse and threw it aside.

"Now you can give me some real pain, Roy. Strap me to the beams here."

Roy lifted her arms and fixed Jennifer firmly to the beams. He undid her strapless bra, and it fell to the ground, leaving her magnificent tits with large, erect nipples hanging free.

"Give them a good suck before you flog them," Jennifer said eagerly.

"I am going to enjoy these," said Roy with a glint in his eye. Roy took her nipples between his fingers and started to roll them, then he sucked first on one and then on the other until they were fully erect.

"Time to punish them for getting so hard," he said as he chose a flogger and drew it slowly over her breasts.

"Count for me," he said. Then I will know when to stop.

"Gag me and give me the full forty," said Jennifer, smiling.

"I have wanted another man to punish me for a long time."

"Well, I might just fuck you first and make you cum before I flog you," Roy stated calmly as he dropped his trousers and pants to the floor.

"You have Barbara being fucked by your machine, so it's only fair that I get to fuck you in return."

Roy grabbed the sides of her panties and pulled them off. He fastened her feet, with legs spread wide, to the loops in the floor.

"That wasn't what I asked for," said Jennifer, panicking a little.

She could do nothing now that she was tied. She sighed as he pushed his erect cock into her moist opening. His cock did feel good, warm, and tight in her pussy.

"There's not a thing you can do now, Jennifer, apart from enjoy it. I will give you your flogging after you've cum for me."

Roy held onto her tits as he pumped in and out of her. Gradually, he felt an orgasm rising in her as she pushed against him and stiffened before exploding in ecstasy. A few moments later, he also came and squirted his cum deep inside her.

Her body and tits now hung limp, and Roy knew that this was the time his flogging would give maximum feeling to her tits.

Roy picked up the flogger and started. Her tits swung from side to side every time he flogged them. They looked magnificent with her large, erect nipples proving to be an ideal target.

"One, two, three." Jennifer wriggled and squirmed to no avail. She obviously felt the full pain of his flogging, "Twenty, twenty-one, twenty-two." Tears were forming in her eyes; her tits were so much more sensitive just after her orgasm. The pain was excruciating, and there was nothing she could do to stop it. She had asked for the full forty, and now she was getting it. "Thirty-five, thirty-six."

She could hold back her tears no longer and sobbed uncontrollably into her gag. This was just what Roy wanted to see, and he aimed the last four blows precisely at her nipples.

Roy picked up a wooden paddle, "That's a good girl. Now you are crying, we will see how you get on with ten of these," he said as he proceeded to whack each of her nipples as hard as he could.

Jennifer's tits looked red and sore as Roy undid her hands and let her down, making sure he held her by her tits as much as possible. "You bastard," she said, as he removed her ball gag, "you knew my tits would be far more sensitive if you made me cum first."

"That's what it's all about," Roy said. "Ensuring we all experience maximum sensations."

"Let's see how Barbara is getting on with our fucking machine," Jennifer said in between her sobs.

Still naked, they moved over to where Barbara was fastened to the floor with the machine going full pelt in her cunt as she orgasmed again and again.

You made me endure a lot said Jennifer, "Let's give her a further ten minutes of constant orgasm."

"Let's slide under her and give each of her tits a good suck whilst she's cumming, they look so inviting jiggling there," replied Roy.

They lay on either side and slid their heads under Barbara's body, their mouths seeking out her swaying tits, and they eagerly sucked them in. They licked, sucked, and nibbled for a full five minutes before sliding out.

"Wow, that was great," Roy commented, "I have never felt them so hard."

"Why not fuck her mouth whilst the machine does its stuff in her cunt." She is so out of it that I think we can do anything to her and she won't resist."

"That sounds good," said Roy, "and I can French kiss you at the same time."

Roy removed the ball gag, stroked another erection out of his cock and pushed it against Barbara's lips, which she opened eagerly and welcomed him in. Roy thrust his cock as far as it would go down her throat and proceeded to mouth fuck her, as she rocked in constant orgasm from the machine.

Jennifer climbed over Barbara, straddling her, and met Roy's lips with her mouth open. Soon their tongues were entwined, and they were locked in an intensive French kiss. They looked like an incredible sexual threesome or foursome if you include the fucking machine.

Roy reached down between Jennifer's open legs with one hand and found her clit to rub and squeeze. After a few minutes, they both exploded in orgasms. Jennifer squirted all over Barbara. Her squirt ran down and dripped off Barbara's tits.

Roy came in the back of Barbara's throat, filling her mouth with his spunk. Barbara swallowed almost immediately until every drop was gone, then she sucked as if searching for more as the machine continued to give her endless orgasms.

"We had better let Barbara finish off now. She will be exhausted," said Jennifer as she pushed a few buttons, and the machine started to slow down and finally stop.

Jennifer removed the machine's dildo from Barbara's cunt and moved it fully away. She undid the ties holding her to the floor.

"Wow, that sure was some orgasm," said Barbara quietly. "Have you guys finished as well?"

"My tits are really sore," said Jennifer, "Roy punished them well."

"And my pussy aches like mad, I can hardly remember a thing whilst I was cumming for it. I do have a funny taste in my mouth. Can I have a drink?"

"Let's all go for a drink upstairs, and we can review the recording of our afternoon activities. Oh, I forgot to tell you that we record all of our dungeon activities."

"I am sure Karl would like a copy. He has our pictures and sex videos already. How do you feel about that, Jennifer? You will be shown naked, with your tits being flogged as you sob into your gag. Then being kissed and fingered until you cum and squirt all over Barbara, who is still being made to cum by your machine. A really erotic sight at the end."

"Let's see how the video came out before we share it," said Jennifer as they raced up the stairs.