- she felt like a rubber glove stretched over her foot! But at the same time, her clitoris could not remain indifferent to such stimulation! The electrical impulses penetrating her body made her respond, resigned to the stretch in her ass. Yes, and with such stimulation, already a large object in the ass was ... not to say that it was pleasant, but not superfluous!

- And now let's see what these projections can do. On assignment, they should pulsate synchronously and equally ...

“Pulse?” Yes, pulsate! Inside her stretched anus, these mounds began to move, increasing in size and crushing in all directions! She froze and listened to her feelings ...

Cilia continued to stimulate her clitoris, but the excitement began to subside - a stir in the intestines was distracting. She grimaced.

- Do not do it this way...

- Unpleasant? - asked Peter Sergeevich watching her.

- But not very...

- I see. - He turned off the ripple. - That's why we test all the ideas. Good girl! And if just like that?

He turned off the ripple and turned on the movement. The screw telescopic mechanism hidden inside the device was activated.

Katya trembled! In her ass began to move a thick, hilly rod! He penetrated deep into her nature. Projections massaged her insides. And she reacted to his every move with a low moan.

Absorbed by the sensations in the depths of her ass, Katya no longer even noticed the soft cilia moving on her clit. She lay quietly moaning.

Pyotr Sergeevich thoughtfully watched the girl's reactions: something was clearly going wrong. He expected more! He tried to increase the speed of the device, but the grimace that twisted the subject's face spoke of suffering, not of pleasure. After waiting some more time, he turned off the device:

- Describe your feelings.

Kate was lying with her eyes closed and was breathing heavily:

- This is ... This is terrible ... - Finally, she said. - I thought he was winding up my guts ...

- It is clear ... It is not good ... - Pyotr Sergeevich responded thoughtfully. What to do next? Yesterday's modification, despite successful tests, clearly did not pull on a breakthrough product! But today's is no good at all ... - We need to think. Dress it for now.

He removed the sensors, turned off the remote control, unfastened Katina’s arms and legs, and put on her panties, firmly tightening the strap at the waist.

- Go while in the dining room. Have a snack and rest. And I need to think ...

To go? Right? With this thing inside instead of an expander? Katya could not even bend over her waist! To get off the chair, she had to roll over on her stomach, and then rise, pushing with her hands.

Peter Sergeevich thoughtfully stood beside her, not intending to help her. Watching awkward movements of a girl with a stiff stake in the ass would be extremely funny if he were not so upset about the results ...

Kate straightened up and went, trying to do less body movements. In the dining room she was the first. Also, without stooping, he sat down and began to eat slowly. Bursting her inside the subject did not contribute to the appetite. Gradually, the dining room was filled. The incoming girls looked at her panties with interest, apparently wondering about the meaning hidden in them. After eating, Katya’s colleagues had unhurried conversations, but Kate herself was not in the mood for chatter today: she was sitting with her back straight and was experiencing her feelings about the hilly rod filling her inside.

After a considerable time, the dining room was empty again. Silent and sad Katya continued to sit at her table. She did not want to go back ... But there was no choice either. She rose heavily, helping herself with her arms so as not to bend, and went backwards.

Pyotr Sergeevich sat at the table at his computer, and Fyodor stood next to him and listened to the story of Pyotr Sergeevich.

- Oh, hello! - Katya did not expect to see Fedor here.

- Hello. - He casually nodded to her in response.

- Katyusha, you still sit back in a chair, and we need to consult. - Petr Sergeyevich gave a voice and returned to the conversation.

Katya climbed into the chair from work - the rod inside was very disturbing. Scraps of the phrases “continued stimulation”, “no perceived reactions”, “attenuation of the back coupling” reached her.

- So, Sing, stop me filling the tanks here! - Suddenly spoke Fedor. - It is clear already that you have adjusted. Show better what the invention is your invention!

- Yes Yes. Here, look ... - And both of them again stared at the screen.

- All clear! - Suddenly Fedor nodded in satisfaction. - The idea, as always, is excellent, but with a spatial realization, you have got lost! Now everything will be a bunch!

Fedor with his paws hard slammed Peter Sergeyevich on the shoulder, which made him almost fall off his chair:

- Plug everything back.

They approached Kate. She lay in the chair and watched their manipulations with alarm. She was taken off her panties, hooked up the sensors and again fixed hands and feet:

- And it is necessary? She asked shyly.

- Of course! - Fedor answered confidently. - The main thing is the purity of the experiment! Sing, turn on little by little, starting with the clitoris, but without pulsation ...

Peter Sergeevich connected the remote and turned on the device. Kate felt ka petals on her clitoris stirred. While this nightmarish thing in her ass was still, it was nice! She closed her eyes. Her cheeks turned pink and her pussy was moistened ... Peter Sergeevich's palm squeezed her breast and began to knead her and tease her nipple. She smiled slightly ... How nice ...

Fedor took the base of the rod and pulled it out. Anus girls reluctantly missed a few mounds. That's how it goes! He nodded to Peter and he again activated the movement.

Kate felt the rod partially pulled out of her, now he was not immersed in her ass so deeply. Suddenly he stirred! Now he began to move, squeezing his thickenings through the exhausted little ring of her anus and guiding them through her vagina and uterus outside. She clutched the armrests and groaned. It was ... It was painful ... But ... But at the same time ...

But at the same time, the sensation from the thick, hilly rod, squeezing through her hole, massaging her cave and slipping back, was painfully pleasant! Her hips twitched. When the rod moved into it, she tried to relax her hole to reduce the resistance to his movement. But when she began to move back, she instinctively squeezed him in order to prolong and strengthen the feeling of his presence in her!

Fyodor stood and held a stirring device. He then pulled him a little more, then pushed deeper, then turned a little in different directions, watching with pleasure how the hips of the girl respond to movement in her.

Kati's mind was dissolved in the sensations of movement inside her! Holding the chair, she pushed her hips forward toward the stem that entered her. All the muscles in her body trembled with tension!

- Yes! Yes! Yes! - She quietly sentenced, leaning ass forward.

- Yes! Still! Still! Still! Faster! Faster! Even faster! You are welcome! Please hurry! Even faster! YES! YES! DAAAAAAAA !!!

The whole room was filled with the cry of a girl tied to a chair and a powerful orgasm beating in convulsions! All her body, from the tips of her toes to the roots of her hair, pierced electrical discharges that made her whole body wriggle.

At some point, when the girl's body relaxed a bit, Fedor abruptly pulled the device out of it.

- ААААААААААААААААА !!! - Katya shouted and arched convulsively, from another powerful shot that had pierced her. Her abruptly empty ass pulsed, scattering burning waves through the body!

She was lying on a chair, breathing heavily. That relaxing, then again arching from the new category, sent her not wanting to calm down gut.

- Got it, sing? - Feodor turned to Peter Sergeyevich. - Moving too deep inside doesn't make sense. Move it closer to the entrance and everything will work out!

- Yes, it is now clear! - Joyfully ... Read more →