Bondage Girl and the Perverted Sadist Teacher

The Saturday afternoon sun, sliced into golden dust motes by heavy curtains, floated in Lin Wanyin's bedroom. The air was thick with the scent of old paper, a girl's natural fragrance, and a faint, almost imperceptible industrial tang of nylon rope. For Lin Wanyin, this was her sole, absolutely safe sanctuary. Here, she could temporarily shed the heavy mask of the "model student" and indulge in the secret rituals, unspeakable and soul-shaking, that thrilled her. Her body was held in an exquisitely shameful position, bound to the chair in front of her desk. Her wrists were cuffed behind her back, secured tightly with coarse hemp rope. The knots dug deep into her pale skin, leaving behind a trail of ambiguous red marks. She was still wearing the summer school uniform that symbolized her status. The white short-sleeved shirt, stretched taut across her chest by the restraint of her arms, vividly outlined her developing, not-yet-full C-cup breasts. Her nipples, already sensitive from the friction of the fabric, had hardened and stood erect, forming two small, shameful peaks beneath the material. Her pleated skirt had been hiked up to her waist, exposing her bare buttocks pressed against the cool surface of the chair. Her slender thighs were spread to their widest, her ankles also bound by rope and secured to the front legs of the chair. "Just this forced spread-legged posture made her feel an overwhelming shame. The insides of her thighs were already burning hot, and her untouched, tender little cunt was uncontrollably secreting slippery, wet juices, dampening a small patch of her pure white cotton panties." What filled her with both terror and excitement was the pink, spherical gag in her mouth. It propped her mouth open, preventing her lips from closing, forcing her to let crystal saliva trickle down the corners of her mouth, dripping onto the fabric of her shirt and leaving behind a small, transparent stain. She couldn't utter any cry for help or protest, only a muffled "Mmm... mmm..." from the depths of her throat, like the whimpers of a young animal. This was the moment she savored most—experiencing absolute helplessness within absolute safety. Every inch of her body was restrained, yet her senses were amplified to their extreme. Every breath brought friction to her chest, every unconscious tensing of a muscle sent electric tingles surging from her spine to her brain. She shifted her body slightly, trying to create more friction between her buttocks and the chair's surface, seeking a deeper pleasure. Just as she closed her eyes, about to be consumed by this illicit wave— "Ding-dong—" The crisp sound of the doorbell pierced her bubble of desire and fantasy like a sharp ice pick. Lin Wanyin's body stiffened abruptly, her eyes snapping open, her pupils shrinking to tiny dots in terror. Who? Who could it be? Her parents had explicitly said they were going to a friend's gathering this afternoon and wouldn't be back until dinner! "Ding-dong— Ding-dong—" The doorbell rang more insistently, as if urging something. Lin Wanyin's heart pounded wildly, threatening to leap from her throat. She began to struggle desperately, her wrists chafing against the rough hemp rope. Not only did she fail to break free, but her skin began to burn with pain. She twisted her waist, trying to free her ankles from their bonds, but the professional knots remained unyielding. "Mmm! Mmm!" She wanted to tell the person outside to leave, but the gag in her mouth twisted all her words into indistinct whimpers. Cold sweat instantly drenched her back. What to do? What to do! If anyone saw her like this... she dared not think further. The consequences were more terrifying to her than death. Just as she plunged into the abyss of despair, a sound that made her blood run colder echoed—the sound of a key sliding into the lock and slowly turning. No... impossible! Only her parents had keys to the house! An absurd yet only plausible thought struck her brain like lightning—It's her!

This was a hundred times more thrilling than any high-difficulty game she had ever played. She didn't rush to untie Lin Wanyin's restraints. Instead, she leaned down, extending her slender fingers, and gently pressed on the pure white cotton panties, thoroughly soaked in arousal. A sticky, warm sensation transmitted through the thin fabric. Her fingertip sank, almost reaching the source of the hot, moist mire. "Mmm..." Lin Wanyin's body jolted as if struck by electricity. Her legs instinctively tried to close, but the ropes held them mercilessly, forcing her to only tense the muscles at the base of her thighs in vain. The shame of her most private parts being touched by her teacher sent her mind into a blank. "Oh my, just a verbal threat from your teacher, and our Wanyin student's body is already this honest?" Su Muqing's tone was full of playful teasing. She brought her fingertip, stained with a little clear fluid, to her nose, sniffed lightly, and then revealed a mischievous grin, like a prankster who had succeeded. "Mmm... it smells a little fishy, but mostly like a girl's sweet scent. It seems Wanyin student is very 'eager' for the upcoming tutoring, her body can't wait." This statement was like a heavy hammer, completely shattering Lin Wanyin's last line of shame. She tightly closed her eyes, tears flowing more fiercely, her body trembling uncontrollably from humiliation. "Alright, it wouldn't be good if your parents saw you like this," Su Muqing straightened up, clapping her hands as if making an important decision. "My apartment is right next door, and it's much larger than your small bedroom, and more... soundproof. Let's go, we'll move to a different place for 'in-depth tutoring'." As she spoke, she skillfully began to untie the knots on Lin Wanyin's ankles. Her nimble fingers danced like butterflies, undoing the complex knots in just a few moments. The instant her ankles were freed, Lin Wanyin instinctively tried to pull her legs back, but Su Muqing grabbed her knee. "Don't move around," Su Muqing's gaze turned sharp. "Otherwise, I can't guarantee that a picture of you, crying your eyes out and bound, won't appear in our Class 2 Grade 12 (3) parent group chat in the next second." The threat was so direct, so lethal. Lin Wanyin's body instantly froze, not daring to resist in the slightest. Su Muqing smiled with satisfaction and then untied her wrists, which were bound behind her back. Her hands, which had been restrained for a long time, had gone numb and hung limply at her sides. Then, Su Muqing stood behind her and unfastened the strap connected to the ball gag from the back of her head. "Clack." The gag fell from her mouth, trailing a long, glistening strand of saliva that dripped onto her chest. Regaining her ability to speak, Lin Wanyin immediately opened her mouth, gasping for air, but the first sound from her throat was a tearful plea: "Teacher Su... I was wrong... Please, let me go... I won't dare again... Please..." Her voice was hoarse, trembling, filled with despair. "Begging for mercy now? Too late." Su Muqing's voice came from behind her, with a hint of unyielding coldness. She wrapped the still slightly warm rope around Lin Wanyin's neck, forming a slipknot in the front, like leading a pet. "Stand up." Lin Wanyin dared not disobey, and could only stand up from the chair with weak legs. Due to sitting for a long time and the exhaustion after climax, her legs trembled uncontrollably, making it difficult to stand steady. Her school uniform shirt was already disheveled, soaked with sweat and saliva, clinging tightly to her body. And the pleated skirt, hiked up to her waist, completely exposed her naked lower half to the air. The valley, which had just experienced a flood, was slightly red and swollen, its wet opening parting and closing, emitting a shameful scent. Su Muqing held the other end of the rope and tugged, like walking a dog. "Keep up, my... good student." She opened the bedroom door, peeked into the living room, confirmed no one was there, and then, pulling Lin Wanyin, in a highly humiliating manner, quickly walked out of Room 1701. She swiftly used her key to open the door to the adjacent Room 1702 and dragged her inside. With a "bang," the door closed. The world was completely shut out.

Now, Lin Wanyin's entire upper body was completely bound by the rope, imbued with a sense of humiliation, into a bizarre, lewd, sacrificial posture. Any slight struggle she dared to make would cause the ropes around her neck and between her legs to tighten simultaneously, bringing her a dual agony of suffocation and a sensation of her nether regions being sliced. After the binding was complete, Su Muqing removed her foot from Lin Wanyin's body. She gazed down from above, admiring her masterpiece, observing the trembling, naked, young female flesh, contorted by extreme pain and restraint. In her eyes, a near-perverse, artist's satisfaction gleamed. Next came the treatment of her mouth. Su Muqing retrieved another prop from her "treasure chest" backpack. It was an extremely grotesque device, its head a realistic, oversized male phallus, and its tail a spherical gag with breathing holes – an integrated penis gag. "Open your mouth, you receptacle." Lin Wanyin's body, like a programmed robot, obeyed the command without the slightest hesitation, her lips, already devoid of color, parting. Su Muqing, without any trace of pity, shoved the cold, hard, rubber-scented penis gag forcefully into her mouth! "Mmph mmph mmph—Pffft—!!" The enormous, realistic, cold rubber-scented glans brutally pried open her teeth, ground against her tongue, and was thrust deep, all the way to the back of her throat. Because of her complete submission, Su Muqing pushed it in so deeply that the massive glans nearly touched the entrance of her esophagus, inducing a strong, continuous, suffocating urge to vomit that she was utterly powerless to resist. The spherical gag clamped her mouth open, stretching her lips into an O-shape, rendering her unable to close them. Saliva, secreted in torrents due to the intense foreign body sensation, flowed uncontrollably down her chin, forming a lowly shape that seemed to eternally crave something. She felt as if her mouth, like a slutty whore, had been thoroughly and permanently violated by a cold, hard dildo that would never be removed. Once all the preparations were complete, Su Muqing began her "disguise." She did not dress Lin Wanyin in underwear. Instead, she directly placed the thick, dark blue winter school uniform jacket, utterly out of place in the autumn air, over her naked, bizarrely bound body. With her arms bound tightly behind her in a "reverse prayer" position, the normally loose school jacket appeared somewhat tight on her, creating an extremely unnatural, grotesque bulge from the folded arms and shoulder blades. Once zipped up, from the front, she resembled a slightly hunched, frail girl. But from the back, the taut fabric concealed a thrilling, unknown secret. Then came the two cold, stiff plastic prosthetic arms, removed from a medical school model. Su Muqing carefully inserted them into the empty sleeves of the jacket, adjusting their position so that the two plastic hands emerged from the cuffs, hanging naturally at her sides. With a touch of malicious humor, she even posed the two fake hands as if they were tucked into the jacket's pockets. Finally, the soft blonde wig, the large black mask, and the seemingly ordinary backpack, used to conceal the bulge on her back, were fitted onto Lin Wanyin one by one. A new, eerie "humanoid doll" was thus created – full of contradictions and flaws, yet appearing unremarkable at first glance. She was a perfect, mobile cage. Outside, a seemingly introverted and peculiar blonde transfer student. Inside, a complete sex slave, bound in the most humiliating manner, her mouth gagged with a dildo, her body naked, not even wearing underwear. "Very good, stand up, my doll." Su Muqing patted her ass and issued a new command. "Alright, my 'new classmate'." Su Muqing stepped back a couple of paces, admiring her creation with satisfaction. She looked at the "girl" before her – blonde, masked, wearing a heavy winter coat, her hands hanging stiffly at her sides – her eyes gleaming with an almost frenzied excitement.

She was truly going to be fucked to death, in the most debased, shameful, and agonizing way, by this devil, in this moving, stranger-filled metal box. "Mmmph... Nnngh... Haaah... Haaah... Wooo..." Her body convulsed uncontrollably, swaying back and forth in the dual tidal waves of pleasure and suffocation. The two cold, plastic prosthetic arms, stuffed into her sleeves, banged against her body inside her pockets with each sway, a chaotic, percussive rhythm. She could no longer hold back. The primal moans of a female creature, a torrent of pain and ecstasy that had been building to its limit in her chest and throat, finally broke through the last dam of reason and shame. They leaked uncontrollably from the corners of her mouth, stretched open by the gag, dribbling with saliva! Though the sounds were muffled and indistinct by the massive gag, reduced to faint, sweet whimpers, like a cat in heat. Lost in the roar of the bus engine, the passengers in front could never have heard. But this sound was like the loudest slap, striking Su Muqing's cold, controlling face with brutal force. She dared to make a sound in public? She dared to defile this public space with such a vulgar, bone-deep moan? It seemed her "education" was far from complete. A flicker of cold, offended rage flashed in Su Muqing's eyes. Without a moment's hesitation, she thrust out her free, ungloved, fair, and strong right hand. And with the most violent, uncompromising motion, she slammed it down, covering Lin Wanyin's face, already a mess of sweat, tears, and saliva, beneath her damp mask! Her palm was so large, so powerful. It completely, perfectly, sealed off Lin Wanyin's nose and mouth, utterly and securely! The last sliver of air, the last chance to cling to life, was utterly and mercilessly cut off! "Mmmph mmmph mmmph mmmph mmmph mmmph mmmph mmmph!!!!!" Lin Wanyin's eyes snapped wide open to their limit! Her pupils, in sheer terror of the sudden, absolute suffocation, contracted violently into two dangerously small pinpricks! Her lungs emitted their final, futile cries! Her heart hammered against her ribs like a drum struck by a sledgehammer, beating with frantic intensity! Her brain, starved of oxygen, began to conjure the most violent hallucinations, the visions of the brink of death. She saw countless, colorful stars exploding before her eyes, spinning, and finally, plunging together into an endless, black abyss. Her body began its most violent, instinctive struggle, the thrashing of the dying! Her arms, bound tightly behind her back with the "Rear-Hand Guanyin" restraint, erupted with a strength that shocked even herself, a surge of pure survival instinct. The rough hemp rope dug deep and viciously into her flesh, sending waves of pain through her, as if her bones were being crushed alive! Her legs kicked and thrashed wildly on the seat, like a fish pinned to a cutting board, making its last desperate struggle! But it was all in vain.

A crisp sound of fabric being torn by metal. She didn't bother to untie the complex knots behind her back, which had already dug into her flesh. Instead, she chose a more brutal and humiliating method. With a pair of sharp surgical scissors, she began to cut, from top to bottom, along Lin Wanyin's back, severing the thick, heavy jacket soaked in her humiliating bodily fluids, along with the frayed ropes that had already shredded her skin, piece by piece with a *snip, snip*! With the final crisp *snip*, the heavy prison garment that had confined her all day, like a mobile sauna filled with the stench of arousal and urine, and the rough hemp ropes that had already fused with her bloody flesh, were finally peeled away from her ravaged, naked body. Her arms, which had been bound in the "reverse deity" position for so long that circulation had ceased, turning them a bruised purple and rendering them completely numb, fell limply and heavily to her sides like the limbs of a broken marionette the moment they were freed. Then, a searing, acidic numbness and throbbing pain, as if millions of ants were gnawing at her marrow simultaneously, surged from the depths of her numb arms as blood began to flow again! "Ah—!!!" This time, it was a raw, pure, agonizing scream born of sheer physical agony! This was the first time since she had been captured by Su Muqing that she had let out such a clear, human sound of suffering. But Su Muqing remained deafeningly indifferent to her pained cries. Her eyes held only a perverted, artistic appreciation and intoxication for the "masterpiece" before her. She gazed at the young, naked, and perfectly feminine body before her, completely and unreservedly exposed, adorned with a myriad of tragically beautiful scars. She looked at her snow-white back, crisscrossed with deep, horrifying, bruise-colored welts, like lash marks, left by the prolonged binding. She looked at the tender inner thighs, already red, swollen, and even abraded from constant friction during her movements. She looked at the matted, dark pubic hair, clumped together by the soaking of various fluids. She looked at her swollen, inflamed, slightly everted vulva, as if roughly sanded, unable to close, her slutty cunt. She looked at the shameful stream of urine and arousal fluid, still slowly trickling between her legs, which had fallen open, powerless and smooth. "So beautiful..." She murmured, genuinely and from the depths of her heart, as if praising a newly unearthed, albeit damaged, yet breathtakingly beautiful ancient Greek statue of Venus. Then, she reached out and roughly flipped Lin Wanyin's limp body, still trembling from the intense pain, so she lay on her back, facing upwards, on the cold carpet. Finally, she reached out and, as if pulling out a lifeless, cold radish, forcefully yanked out the grotesque dildo gag that was still jammed, dead tight, in Lin Wanyin's mouth. "Hh... hh... cough cough cough cough cough—!" The instant the large, fake cock, reeking of her own saliva, left her mouth, a torrent of air mixed with the scent of humiliation flooded her near-suffocated lungs. The intense stimulation triggered a heart-wrenching, earth-shattering cough, as if she were expelling her very insides. The violent coughing fit, which felt as if it would tear her chest cavity asunder, lasted for nearly a full minute. Her face turned crimson, veins bulging from oxygen deprivation. Tears, snot, and bitter yellow bile, coughed up from severe stomach spasms, streamed uncontrollably from her bloodless face, mixing with the dried tear stains of humiliation and the damp red rash from the mask, creating a ghastly, pathetic tableau of sickness and disarray.

Su Muqing, with a patience bordering on cruelty, slowly, slowly pushed the last drop of milk into her body. Only then did she withdraw the enormous syringe. The instant the syringe was pulled out, Lin Wanyin's body instinctively spasmed violently. A turbid, yellowish-white liquid, a mixture of milk and thin feces, was about to erupt from her overwhelmed anus. But Su Muqing was clearly prepared. "Think you can just let it out? Not so easy," her voice was cold and calm, as if stating an immutable law of physics. Just as the filth was about to burst forth, a cold, hard object glinting with metallic luster was thrust into Lin Wanyin's poor, recently filled anus with extreme speed and extreme force – a single, brutal shove! "Ugh—Ahhhhhh!!!!!" This scream was pure, a most desolate wail born from physical agony and the unbearable pressure of being forcibly blocked! It was a stainless steel butt plug, its design outrageously lewd, with a rounded head and a heart-shaped base. Like the most solid, most merciless stopper, it ruthlessly, irrevocably plugged the "volcano" of 500 milliliters of mixed feces and milk that was about to erupt within her! The cold metal of the butt plug contrasted sharply with the scalding, churning filth inside her, a stark juxtaposition of ice and fire. Its hard, rounded head pressed relentlessly against the already overburdened walls of her rectum. She could clearly feel the immense pressure in her belly, the urge to expel, pounding against the cold intruder again and again. "Hold it in." Su Muqing whispered these two words into her ear. These words were the highest, most cruel decree. "Wuwu... wuwuwu..." Lin Wanyin shook her head frantically, tears falling like pearls from a broken string from her hollow eyes. She used all her strength, desperately clenching her sphincter, trying to grip the damned butt plug, because if it slipped out even a millimeter further, the filth within her would completely break free. But the harder she tried, the more her lower abdomen spasmed, and the irresistible physiological urge to defecate surged like a monstrous wave, crashing against her already fragile nerves. Her entire lower abdomen bulged unnaturally high, forming an exaggerated curve, like a woman three months pregnant. She could even feel the liquids churning madly inside her through her own belly. "It seems merely letting you 'feel' it isn't direct enough." Su Muqing savored her pained expression – her face flushed red, her body trembling, drenched in cold sweat – her smile growing more satisfied and wicked. She turned and dragged out a large, dust-covered full-length mirror from the pile of discarded junk in the laboratory. This mirror was likely left over from when the school's dance team used to practice. She hastily wiped away the most obvious dust from the mirror's surface with a paper towel, revealing a relatively clear glass beneath that could reflect a person. Then, she propped the large mirror up directly in front of the lab bench, adjusting the angle so that it perfectly and clearly reflected Lin Wanyin's current state – bound in an M-shape on the lab bench like a sacrificial offering, in her most pathetic, most debased form. "Open your eyes and look carefully," Su Muqing's voice was like a scalpel, coldly slicing into Lin Wanyin's confused consciousness. "Look carefully at what you've become." Lin Wanyin's eyelids felt as heavy as lead. But Su Muqing reached out and roughly pried them open, forcing her to confront the reflection in the mirror, the one she least wanted and dared not face. Her vision focused. In the mirror was a naked monster, both familiar and strange. Her once delicate and beautiful face was now deathly pale, streaked with tears, saliva, and... a half-dried, yellowish-brown stain of her own feces. Her mouth was stuffed full with a black stocking, allowing only muffled whimpers to escape. Her upper body was wrapped in a school uniform shirt torn into strips and a lewd, hollowed-out lace bra, her two swollen nipples standing erect in the air like overripe cherries. And her lower body... It was a horrifying, decadent, and utterly unbearable sight. Her legs were bound tightly to the sides of the lab bench with tape in a humiliating M-shape. The small patch of black pubic hair at her crotch was matted together by various fluids, clinging tightly to her swollen, everted labia.