The Sex Machine

The inventor uncle helps his niece become highly orgasmic.

James was in his lab thinking about improvements to his new coffee maker when his phone beeped. He poured himself a cup of coffee and sat down in his chair, seizing the opportunity to take a break.

His niece, Lina, was texting him.

“Uncle! I need your help!!!”

He smiled. Lina was always such a straightforward, energetic girl. He liked her.

“Sure, dear. What’s on your mind?”

“It’s important!!! Promise to help me!”

“Of course I will. What do you need?”

“It’s… complicated. You see, I’ve started my sex life.”

“Congratulations! And…”

“And I did not have an orgasm at all! It’s terrible! I tried several times and nothing!”

“Um… Did you try to masturbate?”

“Of course! And it feels nothing like my friends tell me! It’s a disaster! Uncle, I need to develop my orgasms!!!”

He smiled again. So uncomplicated! Lina never stopped when she wanted something.

“Okay… So what help do you want from me?”

“You’re the inventor, Uncle! Create something that gives me strong orgasms! Please please please!!!”

“I see… It will take some time, but I’m sure I’ll come up with something…”

“Great!!! Send me updates!”

James smiled yet again and put away the phone. Lina could sometimes be very demanding, but he didn’t really mind helping her. After all, it was goind to be an interesting challenge.

***

Two weeks later he texted her.

“Hi Lina. How’s your sex life?”

“No better. I’m masturbating like crazy and I bought the Satisfier. Nothing even close to being satisfactory. Did you invent something for me?”

“I think so. Could you come over for the weekend?”

“No problem! I’ll be there next Friday night! Thank you, thank you, thank you!!!”

“Just one more thing. Do your parents approve?”

“They don’t need to know! Let it be our secret, okay? See you on Friday!!! Bye!”

He smiled and went back to polishing the last improvements on his creation. Maybe her parents would get mad at him… but he was no less eager than Lina to test the machine.

***

Lina came to his house right after school on Friday. James hugged her and kissed her on the cheek. Lina was almost as tall as he was, and she was beginning to take on feminine shapes.

“Hi Lina! You look good!”

“Thanks, Uncle! So where’s the invention?”

James laughed. Typical Lina – direct and impatient.

“Come to my lab and see.”

She whistled when she saw the thing.

“I never thought it would look like this! A… bike?”

“It was one, yes. Before I rebuilt it.”

The machine still looked a lot like a bike, with the shiny handlebars, pedals, and all. But instead of a saddle, there was a kind of couch. And… there was a strange mechanism at the back, with two dildos coming out of it…

“Cool! How does it work?”

James grinned and began to explain.

“Well, you lie here on your stomach. There are controls for different vibrators here, on the handles and pedals. You’re going to get all your lovely points stimulated at the same time. And you control everything, the intensity, the speed, the depth, the thickness…”

“So basically it’s just a big fucking machine?”

“Sort of. But it’s more powerful than anything you can find on the market.”

“Awesome! Let’s get started!”

“Then get undressed.”

Lina promptly stripped naked, already eager and excited. James admired her slender body and felt his cock getting harder. He would definitely like to test how Lina reacted to the treatment afterwards…

“It will take the whole weekend, with appropriate breaks. You won’t get much sleep, and I’ve prepared the broth and yogurts to feed you. No hard food, it would be too hard for you in this condition. Now go to the toilet and wash your fine orifices.”

“Wow…”

She obediently went to the bathroom, then returned and lay down on the machine. James adjusted it so that her pussy was well aligned on the vibrating pad, then fastened the straps and secured Lina in place, tying her hands to the handles and her feet to the pedals. Her already hard nipples were attached to the soft but reliable clamps. James glued several electrodes to the most sensitive parts of her body.

“You’re going to get some electrical stimulation as well. Are you comfortable?”

“Y-yes…”

“You can rest your head there.”

And James carefully fitted the dildos block to her crotch. He lubricated the dildos thickly, making sure the container was full of lube to spray as needed. He aimed the tips of the dildos at Lina’s two holes and pulled the lever. The dildos extended slowly, all the way inside her.

Lina gasped.

“How do you feel?”

“Full…”

James smiled. He knew that Lina would soon feel even more stuffed. He connected the cables and activated the system. The electric motors hummed quietly. All lights were green. Everything worked perfectly!

“Now everything is in your hands… and feet. Try turning the handles and pressing the pedals, little by little. You’ll soon figure out what does what.”

“Okay…”

Lina nodded and slowly turned the handles. The machine hummed louder, the vibrator pad started to gently massage Lina’s clit, and the dildos moved slowly – almost all the way out, then all the way in, then back out again… Lina let out a relaxed sigh.

“Nice… But nothing special so far, you know.”

“It’s just the beginning, my dear. Feel free to experiment.”

Lina gradually increased the intensity, moving her pedals as well. The dildos quickened their pace and got a little thicker. The clamps squeezed Lina’s nipples harder. She squealed softly and tried to slow things down a bit.

“Ouch! Uncle, there’s a malfunction! The grips are not turning back!”

“No malfunction, dear! It works as intended. You can’t slow down or go back now, Lina. Only faster, deeper and stronger, to your limits!”

She whimpered, her fear mixing with the growing excitement.

“But… Uncle… Can you stay with me? I’m a little scared…”

James patted her shoulder lovingly.

“Of course I will. I’ll be with you the whole time. Don’t worry. Relax, play with the controls and focus on your feelings.”

James dimmed the lights in the lab except for the lamps that shone on Lina. Then he checked the cameras that were filming her from all angles and sat down in an armchair behind her to check the monitors.

Lina increased the power a little. She began to breathe louder, in the rhythm of the moving dildos. The vibrations increased, the penetration became deeper and thicker… Lina moaned softly. James watched her closely on the screens. She was completely tied to the machine, helpless against the relentless rhythm. Her back reddened a bit, drops of sweat appeared all over her skin.

“Mmm…” she said softly. “It’s better than masturbation… I start to feel something…”

And she gasped as the first weak electric shock shot through her body. “Ow! That was unexpected!”

“But is it good?”

“Yeah… So good…”

Her body jerked in the straps. She pressed the pedals harder, trying to force the dildos deeper into her tight holes. She was completely lost in the sensations, moaning with every breath. She twisted the handles more.

“Owww… Aaahhh… Ahh, ahhh, ahhhh…”

And suddenly she screamed, tensing, trying to writhe, but the straps held her tight. She screamed for about ten seconds straight, then relaxed and let out a long breath.

“Ohhh… So good…”

“Congratulations, Lina!” James smiled. “This is your first real orgasm, isn’t it?”

“Yes… Ahhh… Thank you…”

And she moaned again as the dildos continued to penetrate her, combined with vibrations and electric current.

“Ahhh… More… Mmmm… Again…”

James watched her screen intently. Lina quickly figured out how to combine different controls to create maximum excitement. She turned the pedals harder and squirmed slightly on the couch.

“Ooohh… Yes… Yes yes yes yes… Aaahhh!”

And she screamed as the second, stronger orgasm hit her.

“Nice,” James nodded, making adjustments to the remote. “And note, only half an hour has passed and you are still only at twenty percent power. You have a long journey ahead of you, much longer, much stronger!”

“Wha…? What? Even stronger? Uncle!”

Lina was visibly frightened… and increasingly aroused at the same time. James smiled and stroked her hair.

“Relax, Lina. Your body is ready for anything. For the whole weekend.”

“Oh…”

And Lina started to breathe fast as the next orgasm approached.

***

An hour later, she was at one-third of maximum strength. She was drenched in sweat, drooling on the couch, unable to move. She screamed constantly, barely noticing how her throat was getting sore.

James slowed the machine down to minimum power and helped Lina drink water, then some yogurt, then more water.

“How are you feeling?”

“Good… Thank you…” she whispered. “Uncle… I want to pee…”

“That’s okay, the machine has the containers for your urine. Pee whenever you want, we won’t untie you for it.”

“Okay…”

She sighed as she relaxed and let go. James increased the force a little. Lina moaned, shaking all over.

“Mmm… Uncle… Can I have a break? I’m getting tired…”

“No, dear. The whole idea is to push you to your limits – and beyond. You will be stimulated until you pass out from intense orgasms.”

“What?… Ouch! Uncle! Mmm…”

And almost without noticing herself, she increased the power a little more. James watched Lina closely on the screen. Soon… Soon…

“Aaaahhhhhh!”

Lina screamed louder as the next orgasm hit her. Her whole body was tense, shaking in the straps, and her legs and arms twitched uncontrollably. Then came the next orgasm. And the next. And Lina increased the force even more.

“Ahhh… Mmm… More… Aaaaaaahhhhhhhh!”

James waited patiently as Lina experienced countless orgasms in a row. When the wave had passed, he gave her another drink of broth and water.

“Go on, Lina. Go harder.”

And she increased the power again.

***

Lina fainted for the first time in the fourth hour. James nodded as the machine automatically slowed to a stop. He inspected Lina’s body – the orifices were reddened, the nipples pulled out, there was sweat everywhere, but otherwise everything was fine. He cleaned Lina carefully and let her sleep on the machine, the dildos still in her orifices.

It was too early for him to sleep either, so he checked the recordings and made small adjustments to the controls. Then he jerked off, as the whole show was extremely arousing.

When Lina woke up, he fed her and asked how she was. Lina stretched happily.

“Mmm… So good… Uncle, how much time has passed?”

James grinned.

“Three and a half hours of stimulation, then an hour and a half of sleep. Now get ready, we start the second round…”

And Lina moaned with a happy smile on her face as the dildos slowly penetrated her.

“Oooohh… Uncle… More…”

She increased the power almost instantly. James chuckled and adjusted the remote again.

“As you wish, dear! As you wish!”

Lina increased the power quickly, obviously wanting to get stronger orgasms as soon as possible. And she lasted longer this time, even though they were much stronger than the first ones.

She moaned and screamed, twitched in the straps, and paused from time to time to drink.

She passed out again after four hours, this time at two-thirds of the machine’s power.

***

On the third cycle she finally reached full power. The thickest dildos penetrated her at 120 beats per minute, the vibrating pad mercilessly tortured her fully erect clit, the electric shocks made all her muscles jerk uncontrollably – and she was at the peak of pure pleasure, oblivious to everything but the ocean of powerful rapture that was engulfing her. She didn’t even scream, just moaned constantly with an expression of ecstasy on her face.

James watched her condition closely. Lina’s orifices were red, and James occasionally sprayed her with cooling lubricant. Every 45 minutes he reduced the power and fed Lina. She no longer spoke to him, completely focused on the bodily sensations, just wanting them to continue, more and more.

She still fainted every four or five hours, then slept for an hour, then the whole thing repeated. When the cycle was established, James slept next to her, although her moans and cries did not allow him to sleep well.

By Sunday afternoon, Lina had gone through twelve full cycles, over fifty hours of ecstasy. When she fell asleep for the last time, James turned off the machine, unstrapped Lina, gently washed her body – she did not wake – and laid her on the couch.

When she awoke, he stroked her hair and kissed her gently.

“How are you, dear?”

“Mmm…”

Lina stretched contentedly. Her whole body was sore, her throat was hoarse, her orifices ached a little – but she felt incredible pleasure and satisfaction. James wiped away Lina’s tears of joy.

“Is that all? Uncle! I want more! More, please!”

“It’s Sunday night, dear. It’s time for you to go home and to school tomorrow. But of course,” James smiled, “we can always do this again some other weekend.”

“Mmm…” Lina hugged and kissed James. “Thank you so much! You’re great! I love you, uncle!”

“I love you too, dear. And also… would you like to test your orgasms in real sex?”

Lina narrowed her eyes mischievously.

“Do you mean… with you?”

“Yes, Lina.” James kissed her. “With me.”

“Oh yes!” Lina threw away the blanket and spread her arms and legs. “Yes, yes, yes! Of course! Fuck me, please, fuck me!”

James grinned and positioned himself between her wet thighs. He penetrated Lina slowly, savoring every moment and moaning with pleasure. Lina moaned too.

“Ahhh… So good… Uncle… Ahhh, ahhh, ahhh!”

And she began to orgasm loudly and did not stop until he had come inside her.

“So how?” he asked, pulling out and kissing her. “Do you like how orgasmic you got?”

Lina giggled happily and kissed him back.

“Yes, uncle! I like it very much! I think I’ll want to repeat this weekend soon!”

“Of course, dear. Anytime.”

“And, you know… Could I bring my girl friend? Or two? I know a couple of girls who would like the same treatment…”

James laughed.

“Of course, dear. I’ll make another machine… or two. After all, I expect people will want them for themselves soon, so I should think about setting up mass production…”

Lina laughed too, got up and started to get dressed.

“I bet they will! Thank you, Uncle! Thank you so much!”

And she ran out the door.

James spent the evening cleaning the lab, watching videos, masturbating… And thinking about improvements for the next machines.

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