Beep Beep! System Activated, Preparation Complete
I approached Lee Jiun, who was standing on both knees. Just like acceleration, braking seemed to have been self-taught in no time. A model biological RC car, perhaps. Anyway, with this, the preparations for going out were complete.
"Stand back on all fours properly."
Thud.
At the command, Lee Jiun placed her elbows on the floor and returned to all fours. But the next moment, her black head whipped toward me. Scramble-! She crawled to my feet and bowed her head. A tear-choked voice rose from beneath my feet.
"Huu, hu-han-! Jeo... jeo-jjok-ji jjit-eo-jyeo-yo-o-!! (Th-that's enough-! My... my nipples are tearing off-!!)"
From her reaction, it must have hurt quite a bit. Well, getting bitten deeply on nipples that sensitive would obviously be painful. However—
"...The tensile strength of human skin is approximately 20 MPa."
"Hye?"
"How much weight can a 1cm-wide strip of skin support? Theoretically, up to 20kg is perfectly possible."
"......?"
I directed the scientific facts at the black head staring up at me.
"In other words, you don't need to worry about your nipples getting torn off from something like this."
"......"
A moment later, thud-. The black head dropped to the floor. If I pulled off the hood now, I had a feeling I'd see eyes brimming with despair and moisture. Setting that aside, there was no time.
"Alright, you've learned directional control... Ah, right. Let's add some options before shipping it out."
It was less about adding options and more like customizing a vehicle. Shortened: car-cu. In truth, it was closer to illegal tuning born from a twisted hobby. I brought over the remaining two clothespins. Two clips with bells already attached via shoelaces.
The first tuning point was the tongue wandering between her spread lips.
"Stick your tongue all the way out."
Beeeeeh-.
Completely resigned after my earlier statement, she obeyed without resistance. I pinched her slippery tongue between my fingers and pulled it out as far as it would go. Then I slid the clip all the way to the center of her tongue and—
Clip-♡
"Hya-hya-hya-hak-?"
The bell was quite heavy, so her tongue hung outward from the weight, the bell at the tip ringing cheerfully.
Jingle, jingle-♡
"Hyaa-. Hya-hya-hak-."
Her already slurred pronunciation became completely unintelligible animal noises once her tongue was fixed outside her mouth.
"Good. Last tuning."
I moved behind Lee Jiun. The final bell clip. The target was her clitoris, swollen from the Stinging Parasite. Using my knees, I forced her thighs apart. I captured the clit peeking out between her labia majora and drooping downward. Spreading the jaws of the strong-grip A-type clip, I aligned it vertically against her clit and—
Squeeze-♡
Clip♡
"Go-o-o-o-o-ok-!"
The moment the decoration was attached to her clit, the bitch began shaking her ass wildly in joy♡♡ The clothespin swayed up, down, left, and right with the violent movement of her ass♡ Then the bell dangling beneath it rang out jingle-jingle-jingle-jingle-♡♡ Every time her body trembled in pain, the bell hanging between her legs swayed♡ A clear, pure sound announcing the first shipment of the human RC car♡♡
"Alright. Tuning complete!"
With one hand holding the nipple handles and the other gripping the riding crop, I stood behind Lee Jiun. From behind, her appearance was truly a sight to behold. A bloated belly holding 3L of slime♡♡ An ass swollen bright red from being beaten like a monkey's♡♡ Abnormally elongated nipples and clit that would make any other female college student want to commit suicide from shame♡♡ Clothespins hanging from those sensitive areas♡♡ Bells jingling with every movement♡♡ And in the midst of it all, her asshole puckering in and out from the pressure in her stomach♡ Not a shred of dignity remained—only the true form of a bitch♡
"Now then, let's take it for a test drive."
I grabbed the right rope and pulled it firmly. Streeeetch-♡ Her right nipple stretched like taffy, her areola tenting upward♡ Soon even the white flesh of her breast was being pulled along♡
"Hya-hyat-!"
Lee Jiun trembled but twisted her upper body to the right to escape the pain. Her swollen belly swayed heavily with the swift movement♡
"Handling's good. Now this side."
When I pulled the left string, she let out a muffled scream and turned left while cradling her heavy belly.
"Good job. Now let's try cornering too, so think carefully before you move."
I slowly pulled the right string while simultaneously wrapping the crop around her ass and striking it sharply.
Streeeetch♡
Thwaaaack!♡
"Hye? Keuuung...! Hek-hek-!"
Lee Jiun froze as if her brain had short-circuited. But after a brief moment of hesitation, she seemed to find the optimal path to avoid the pain. She crawled forward diagonally to the right. While maintaining that position, I gently tugged the right rope. Following the tension, she executed a smooth cornering turn. Soon she completed a full circle and parked at my feet. It was fortunate her learning speed was fast, given how little time remained.
"......"
As a test, I suddenly yanked both strings at once without saying anything.
"Kkuo-o-o-o-o-!"
With a bizarre cry, she came to a dead stop.
"Hmm, performance is solid."
With this, the system was complete—controllable at will even without sight♡ My personal, personality-destroying quadrupedal shit-belly RC car, ready for shipment♡♡ The two lead lines pulling her nipples served as both steering and brakes♡♡ The riding crop was the accelerator♡♡ The fact that water was dripping from both holes was a flaw♡♡ The bloated belly was a bit unsightly♡♡ But since it was my first car, this level was more than satisfying♡♡
"Still, just in case, I should make sure."
To prepare for any situation, I tied a thick thread around the base of Lee Jiun's clitoris. Wrapping it tightly with a fishing knot so it would never come loose♡ I pulled the thread long and secured it together with the directional controller.
"Done."
After truly finishing all preparations, I hurriedly threw on my clothes. Then, with satisfaction, I swung the crop.
Thwaaack-!
"Kkuok-!"
Her red ass wobbled as she moved forward. I walked a few steps ahead and opened the front door.
"Alright, let's go get some fresh air."
Ding-dong- [You have arrived at the 3rd floor. The doors are opening.]
"Kkeui-ii-!! Kkeu-eu-eu-geuk-!"
The moment the pain of both nipples being crushed without warning struck her brain, Lee Jiun knew instinctively. He was insane. Typical BDSM nipple clamps had rubber padding on the tips. To prevent skin damage and provide only enough pressure to arouse. But what was currently biting and stretching her nipples? Judging by the force, it was almost certainly ordinary A-type clothespins.
'Th-this... isn't for play-!!'
She had experience. Out of curiosity, she had once tried ordinary clips. But the conclusion she reached then was simple: A-type clips were unsuitable for play. Especially because the sharp, gear-like threads dug into flesh. Clamping them on sensitive areas was unthinkable. A tool that delivered pure pain, not arousal. Yet this madman was using that tool without hesitation. Not only that, but on nipples already hypersensitive—
"From now on, I appoint you as a quadrupedal shit-belly RC car."
After spouting some incomprehensible nonsense—
"Come on, the principle is simple. First, this is a right turn."
He yanked the clip with full force.
"Heuhiiiiiik-!!!"
A searing pain as if her right nipple was being torn off. Yet even amid the agony and confusion, Lee Jiun had to find a way to survive. To avoid being ripped off, she had to twist her body in the direction the string was being pulled. Tap. Tap. Tap. Tap. Flailing with elbows and knees, she twisted right. Only then did the taut nipple loosen.
"Good job. Then I don't need to explain left turns, right?"
"Hya... hya hae-hyo hae-hyo! (N-no need!)"
Lee Jiun cried out sincerely. This wasn't a joke. He wasn't pretending to pull—he was yanking mercilessly, as if handling a beast. No female college student could endure such brutality. But even after begging and shouting—
"Hah!"
Streeeetch-♡
"Hyaaaaak-!♡"
Her left nipple was mercilessly pulled upward. No matter how much she screamed, the pain didn't lessen. The stretching nipple conveyed Kang Minu's command: until she moved as ordered, he would never let go. To survive, Lee Jiun frantically twisted left. The nipple loosened again. In that moment, she understood completely. RC car. Right turn and left turn. The words this madman had just uttered weren't mere metaphors. Far from it—they were infinitely intuitive and direct. Kang Minu was genuinely planning to drive her around like this. He was insane.
"Hah... hah... hiik..."
Panting heavily, Lee Jiun gritted her teeth. Did this bastard know? Did he have any idea how much pain this act caused the person involved?
'......'
Reaching that thought, a hollow, empty laugh suddenly escaped her. Of course he didn't know. If he did, he wouldn't have done this in the first place. But how could he do this? How could he, right after pumping 3L of enema into a female college student's ass, implement such an absurd and horrific idea as a nipple-direction system? A demon? Was this man a demon?
"You understand the steering system? Next is the accelerator and brake."
Listening to him, she realized he wasn't treating her like a person at all. No—not even like a pet... or even an animal. A toy? In this man's eyes, was she truly just a lump of meat to play with?
"Now this is... forward!"
Thwaaaaaack-!
"Kkuweeeeeek-!"
The next moment, her thought process snapped. An intense impact that blew away all stray thoughts. She could clearly feel the blunt end of the riding crop digging into her swollen ass. There was no time to decide how to act. Purely on instinct—like a horse that had actually been struck on the rump—Lee Jiun charged forward, her heavy belly swaying. But the sprint didn't last long.
"Whoa, stop!"
"Hi-hya-aaaaaaaak-!!"
Thwang-! Both nipples were yanked upward in an instant. The pain of her nipples being torn in opposite directions made Lee Jiun halt in place. But even after stopping, the clips didn't loosen. If left like this, both nipples really would tear off. Desperately trying to minimize the pain, she raised her upper body until—finally—she stood upright on her shortened thighs like a performing dog. Then a voice came from right beside her.
"Stand back on all fours properly."
This was impossible. She couldn't endure it anymore. A one-sided sadistic play that showed zero consideration for the other person, driven solely by his own amusement. Lee Jiun judged that it was no longer time to preserve her pride. Scramble-! She dropped back to all fours and crawled toward the direction of the voice. Then she slammed her head against what she guessed was Minu's foot.
"Huu, hu-han-! Jeo... jeo-jjok-ji jjit-eo-jyeo-yo-o-!! (Th-that's enough-! My... my nipples are tearing off-!!)"
She hadn't wanted to cry. Never once in her life had she shown tears in front of a man. Her friends had even told her she was nothing without her pride. But the pure terror she was feeling for the first time, combined with the helplessness and pressure of not knowing when this madness would end, shattered Lee Jiun's mind. Yet the answer she received to her desperate plea was—
"...The tensile strength of human skin is approximately 20 MPa."
"Hye?"
"How much weight can a 1cm-wide strip of skin support? Theoretically, up to 20kg is perfectly possible."
"......?"
Lee Jiun blankly mulled over Minu's words. Then she reached a conclusion. Ah. He really was insane. This man wouldn't stop. No matter how much a woman cried, begged, or pleaded, he wouldn't stop. A reasonable suspicion even arose that he was enjoying such reactions. The moment that chilling realization passed through her mind, the last shred of pride and resistance within Lee Jiun evaporated completely. What filled the void was a pathetic survival instinct.
'Just do as I'm told... follow orders...'
If she needlessly provoked him or made him angry, she felt something even worse would happen. From that moment, Lee Jiun submitted completely. Jingle, jingle-. So even when the clips with bells were attached to her tongue and clitoris under the pretext of "tuning"—
"Now then, let's take it for a test drive."
Even when she was made to run around like a dog until she sweated under the pretext of a "test drive"—Lee Jiun moved her four limbs without complaint, obeying every command.
"Good job. Now let's try cornering too, so think carefully before you move."
When the crop struck her ass, she moved forward. When her nipples were pulled, she turned. When signals came simultaneously, she cornered slowly. When both nipples were pulled, she stopped. At some point, Lee Jiun stopped thinking for herself. She was merely a tool that produced movement as output in response to pain as input. A doll. An object. A conditioned reflex machine. A toy. Pavlov's dog. And the most miserable, remote-controlled quadrupedal shit-belly meat RC car in the world. Having abandoned her ego and circled the living room before stopping at Minu's feet, Lee Jiun actually felt a strange sense of relief. She had done well as instructed, so he must be satisfied. Therefore, he wouldn't do anything worse. With that naive expectation, she endured even when the base of her clitoris was tightly bound. However—
"Alright, let's go get some fresh air."
Along with that unbelievable declaration—
Click-.
The sound of the door lock releasing, followed by—
Creak.
When she heard the front door opening, she couldn't help but panic.
'A lie... it's a lie, right?'
Going outside looking like this? Crawling on all fours with her limbs folded like an animal? With nostrils flared upward, tongue hanging out, wearing a gag that exposed her gums? With 3L of enema inside her, butt plug inserted? Shaking the bell attached to her clitoris as she went out? And in complete darkness where she couldn't see ahead, forced to crawl relying only on the nipple-direction system?
Surely not. It couldn't be. He was just trying to scare her by opening the door, right? He'd open it briefly then close it again, right? No, it was already closed, right? But no matter how desperately she denied it, reality was merciless. Whoosh-. The wind blowing from the front was definitely not indoor air. It was clearly the cold, dry night air of the outside world. Tremble. Tremble-tremble. A cool breeze brushed past her gums. Then the wind that slid down her chin slipped between her upright limbs. It grazed her erect nipples, flowed over her navel, stroked beneath her mound, and finally brushed coldly over her hypersensitive clitoris clamped by the clothespin.
"Hiik...!"
Lee Jiun reflexively backed away. However—
Thwaaaaaack-!!!
"Kkuo-o-o-ok-!"
A burning pain as if her ass had caught fire. Before that pain even subsided, Lee Jiun's body reflexively lunged forward. Step. Step-step. A pathetic body already broken by the whip and conditioned to pain. And a completely shattered mind. In the end, Lee Jiun took one step into the unknown terror. Then another. Crawling forward while entrusting her body entirely to Minu's touch. How long had she crawled? A sharp pain shot through her left nipple.
"Kkeu-eu-eu...!"
Left turn signal. Then thwack! Forward, accompanied by pain in her ass. After a few more steps, both nipples were suddenly yanked forward. Stop. Lee Jiun couldn't tell whether seconds, minutes, or even dozens of minutes had passed. Following only commands in the darkness had numbed her sense of time. Then suddenly—
Ding-dong-
[You have arrived at the 3rd floor. The doors are opening.]
"Hye?"
The sound of elevator doors opening and the mechanical announcement from ahead. And one more thing—
"Unni! You drank well today. Let's drink at your place again next time."
"Hey, watch where you're going. This is the 3rd floor, not the 1st."
Young women's voices. Excited from drinking—ordinary, everyday voices. But that ordinariness was nothing short of a death sentence to the current Lee Jiun.
"Ah. You're right! Hehe, I must be really drunk... Huh? Wait, what? Eh? What... what is..."
"Why are you so surprised... Huh...? A dog... no... is that a person? Wait, what the hell is this in the hallway..."
After a moment of chilling silence, horrified voices erupted.
"Oh my... these people must be crazy!"
"Kyaaak! Wh-what are you doing! What on earth is this...!"
Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction. Destruction.
The moment she heard the unfamiliar women's voices, only one word echoed in Lee Jiun's mind. The end of her social life. The end of her existence as a human being. Beneath the latex hood's eye holes, tears streamed down. Just yesterday, she had been an ordinary female college student. Why was she now crawling on the floor in such a miserable state? But before she could even feel more shame, an even more powerful agony rained down on her raised red ass.
Thwaaaaaaaaack-!!!
"Kkeu-eu-eu-eup-!"
And then came the low, calm command.
"Forward."
In truth, there was no need for the command. The moment the crop struck her ass, pathetically, Lee Jiun's four limbs were already moving forward—independent of her own will.