What to do when you stumble upon your cousin tying herself up?

"Beep—" a crisp unlocking sound, and the door slowly opened. The air conditioning's cool blast hit me as I stepped inside, carrying a familiar fresh scent – my cousin's usual light perfume, mixed with a hint of woody furniture. I first placed my suitcase in the entryway, changed into slippers, and then carefully set the fried skewers on the shelf next to the shoe cabinet. A surprise, after all, needs to maintain its mystery. I didn't turn on the main living room light, letting only the motion-activated nightlight cast a dim, soft glow. "Cousin, I'm here early!" I thought to myself, preparing to jump out and startle her. But after taking just two steps forward, I froze. A strange sound faintly drifted through the air. "Mmmph... Nngh... Mmmph..." A low, suppressed whimper, coming from the depths of the living room. It sounded like a struggle with something stuffed in the mouth, tinged with a trembling nasal sound. It wasn't the TV, the wind rustling the curtains, or the hum of the air conditioner. The sound was intermittent, sometimes rapid, sometimes with a slight tremor, as if she were trying desperately to endure something. My heart leaped into my throat. My cousin lived alone here; had something happened? A break-in? Or was she feeling unwell? All sorts of terrible thoughts flooded my mind. I instinctively lightened my footsteps, slowly inching forward in the direction of the sound. The floor-to-ceiling curtains in the living room were half-drawn. Outside, the sky had already darkened, and the room was lit only by a floor lamp, casting a soft, yet somewhat ambiguous light. My heartbeat grew louder, I could even hear the gulping sound of my own Adam's apple. My palms began to sweat, feeling sticky. I hugged the wall, trying to make as little noise as possible. Images of my cousin protecting me when I was little flashed through my mind – she was always so reliable, so gentle, and now it was my turn to worry about her. The sound grew clearer, coming from the direction of the bedroom-study. The door was ajar, a thin sliver of light seeping through. "Mmmph... Nngh..." Another sound, this time with a more distinct nasal intake, as if she were about to lose control. My head buzzed, and my steps quickened involuntarily, yet I forced myself to slow down. What if it was dangerous? I couldn't just rush in. Finally, my trembling fingers pushed open the sliding door. The scene before me hit my chest like a heavy hammer, instantly suffocating me. My cousin, Su Wan... was kneeling on the carpet in the center of the room. Her back was to the door, but her posture was incredibly... humiliating and alluring. Her hands were securely bound behind her back with a pair of shiny silver metal handcuffs, the wrists already slightly red from the tightness. A black blindfold was tightly covering her eyes, her long dark hair somewhat disheveled, falling over her shoulders and back, with a few strands of sweat-dampened hair clinging to her neck. A red silicone gag was stuffed in her mouth, the strap tightened behind her head, forcing her lips to part slightly. Saliva trickled from the corners of her mouth, down her chin, leaving small wet marks on the carpet. She was only wearing a thin, white camisole nightgown on her upper body, the fabric soaked with sweat and clinging tightly to her skin, outlining the full, rounded curves of her breasts, which rose and fell with her ragged breaths. One of the shoulder straps had slipped down, revealing a large expanse of snow-white, delicate shoulder and collarbone. The nightgown had been pulled up to her waist, and rough hemp rope was wrapped several times around her upper thighs and knees, forcing her into a kneeling position with her legs together and bent. Her ankles were also tightly bound together with the same thin rope, her toes slightly curled from the strain. The ropes had left clear red marks on her skin. Every slight struggle caused the ropes to rub against her skin with a faint "swishing" sound. Her body trembled slightly, her knees shifting gently on the carpet as if trying to adjust her position, but to no avail due to the restraints. The cool air from the air conditioner wafted over her, carrying a faint scent of sweat mixed with a hint of her unique feminine aroma, filling the entire room. I stood frozen, my mind a complete blank. This... was self-bondage? My cousin, usually so elegant and commanding, was now tied up like this by her own hand, kneeling alone at home, emitting helpless whimpers muffled by the gag. She had no idea I had entered – the blindfold blocked her sight, the gag deprived her of speech, and she was lost in her own world, her body's instinctive reactions so raw. Shock washed over me like a tide. I instinctively took half a step back, my shoulder bumping the doorframe with a faint sound, but I couldn't care less. In my memory, my cousin always smiled and ruffled my hair, saying, "Chenchen is growing up, you need to protect your cousin now." And now, I saw her like this... It made me feel both heartache and... an uncontrollable heat rising from my lower abdomen. I bit the tip of my tongue hard, trying to sober myself up. I couldn't have these thoughts; she's my cousin! Yet, my eyes couldn't help but scan her again and again – the curve of her thighs tightened by the ropes, her slightly arched back from her hands being cuffed behind her, her wet lips parted by the gag, the faint hint of tear-filled eyes beneath the blindfold. Her breathing grew more rapid, her chest heaving, her body beneath the nightgown seeming to twitch subtly. "Mmmph... Nngh... Hah..." Another trembling whimper. She twisted her waist slightly, trying to relieve the pressure from the ropes, but it only made her posture appear more alluring. The metal handcuffs clinked together with a crisp sound, piercing the silence of the room. I stood at the doorway, my throat dry, my mind in a battle. Should I rush forward and help her untie herself? But what if she was enjoying this process, and my sudden appearance would embarrass her to the extreme? Or should I quietly retreat and pretend I saw nothing? But... what if she couldn't untie herself and got into danger? As someone who had occasionally learned some rope-play knowledge online, I knew that being bound like this for a long time carried risks – blood circulation, nerve compression in the wrists, inability to call for help... Time seemed to stretch, each second elongating. My gaze fell on a spot not far from her feet, where a few small keys and a timer were scattered. It seemed to be self-bondage, and perhaps a timer was set for unlocking, but something unexpected had happened. The aroma of fried skewers wafted faintly from the entryway, creating a strange contrast with the ambiguous atmosphere in the room. I took a deep breath and finally couldn't resist taking a step forward, my voice trembling but trying to remain calm: "Cousin... It's me, Lin Chen. I came early... Are you... are you alright?" As soon as the words left my mouth, my cousin's body stiffened abruptly. All the whimpering stopped instantly, and she tried to turn her head as if electrocuted, but could only shake it in vain due to the blindfold and restraints. Her breathing became rapid and flustered, filled with obvious fear and shame, and a more suppressed "Mmmph" sound came from her throat. The air seemed to freeze. The moment my cousin's body stiffened, the air in the room seemed to freeze. Her body, which had been struggling slightly, instantly tensed, like a startled cat trying to instinctively shrink back, but was unable to move due to the handcuffs, blindfold, and ropes on her legs. A more rapid, clearly terrified "whimper" escaped her throat, blocked by the gag. Her breathing was heavy, her chest heaving, and sweat trickled down her neck, soaking the already semi-transparent nightgown. "Mmmph! Mmmph mmmph—!" The sound was full of shame, panic, and helplessness. My heart clenched, and I took two quick steps forward, but then I was afraid of scaring her, so I stopped two meters away, holding up my hands to show I meant no harm. "Cousin, it's me, Lin Chen! Don't be scared, I'm not a bad guy... I came early, I didn't expect... I didn't see anything, really!" I explained hurriedly, my voice trembling slightly. Seeing her like this, I felt both heartache and embarrassment, my mind a complete mess. When we were kids, she protected me, and now it was my turn to see her most vulnerable and private side. She shook her head violently. The gag distorted her voice, allowing only broken sobs. The cheeks beneath the blindfold rapidly flushed, all the way to her earlobes, even her neck turning pink. Her body trembled slightly from tension, her knees shifting on the carpet. The ropes rubbed against her skin with a faint rustling sound, and the clinking of the handcuffs was particularly sharp in the quiet room. I took a deep breath, forcing myself to calm down. Safety first. I slowly approached, crouched beside her, and tried to speak in a gentle voice, "Cousin, I'll take the gag out first, okay? Don't panic, I won't hurt you." She hesitated for a moment, then nodded slightly, a low whimper escaping her nose. I carefully reached behind her head and unbuckled the strap. The gag came out with a "pop," and a string of clear saliva dripped down like silk. She coughed violently, gasping for air. "Chen Chen... Why... why did you come early... Don't look at me... Please..." Her voice was hoarse, choked with tears, her head bowed so low it almost buried into her chest. She still couldn't see me with the blindfold on, but the expression on her face betrayed everything—extreme shame, fear, and a sliver of despair. I quickly removed the blindfold. Her eyes were red, tears welling up, her long lashes damp. The moment our eyes met, she flinched away as if electrocuted, her shoulders trembling even more violently. "I'm sorry... I didn't mean to." I said softly, but my hands didn't stop. I continued to carefully examine her wrists. The handcuffs were a bit tight, leaving faint red marks. I gently pressed them, confirming circulation was okay, before slowly unlocking them. The metal handcuffs clattered to the floor, and her arms, finally free, hung limply at her sides, stiff from being held in that position for so long. Next were the ropes on her legs. I tried my best not to touch her sensitive areas, slowly loosening the hemp ropes loop by loop. Clear rope marks were imprinted on her snow-white thighs and knees, making my heart ache. Throughout the process, she kept her head down, biting her lower lip, silent except for the occasional tremor of her shoulders. Finally, after everything was undone, she collapsed onto the carpet as if all her strength had drained away, hugging her knees to her chest, burying her face deeply. The nightgown lay messily over her, but couldn't hide the marks the ropes had just left. The room was terrifyingly quiet, with only the low hum of the air conditioner and our breathing. "Cousin... Are you okay?" I asked softly, sitting beside her but keeping my distance, afraid to get too close. After a long while, she finally looked up, her eyes swollen and red, her voice trembling, "Chen Chen... You... you saw everything... Please, don't tell anyone... Mom, Dad, friends, no one... I... I was... I was playing by myself..." Her voice grew quieter and quieter, until it was barely a whisper. Tears finally fell uncontrollably, and she quickly wiped them away, only for more to follow. The confident, elegant cousin I knew was now like a child who had done something wrong, curled up there, so helpless it broke my heart. A strong urge to protect surged through me. I remembered how hard she worked, how she struggled alone, and figured she must be under a lot of pressure. This kind of self-bondage might have been a way for her to release stress and find herself. But playing alone was too dangerous—what if something went wrong? "Cousin, I won't tell anyone. I swear." I said earnestly, reaching out to pat her shoulder, then pulling my hand back. "But... playing like this by yourself is too dangerous. Handcuffs, ropes, a gag... What if you can't unlock them in time, or something unexpected happens? When I came in just now, you didn't even know I was here." She bit her lip, her gaze darting away, afraid to meet mine. "I... I have a timer... I'm usually very careful..." "But I came early this time, and you didn't react, did you?" I sighed, my voice as gentle as possible. "Cousin, I know everyone has their own... hobbies. But safety comes first. If you trust me... I can play with you. Not just watch, but seriously, help you, together, to ensure your safety." As soon as I said it, I was stunned. My heart raced, and my face felt hot. But looking at the panic and loneliness in her eyes, I knew I hadn't said the wrong thing. My cousin's head shot up, her eyes wide with shock, shame, and a complex emotion I couldn't quite decipher. "Chen Chen, you... What are you saying? You're my brother! This, this can't... You're not joking, right..." Her face was so red it looked like it would bleed. She instinctively hugged herself, her body recoiling slightly. But I noticed a flicker of something complex in her gaze as it touched the ropes and handcuffs on the floor. Her voice was soft, but her cheeks quickly flushed with a blush. Her long hair still carried the dampness from her bath, emitting a faint, pleasant scent. My heart immediately quickened, and I swallowed, nodding seriously, "Okay, I'm ready. The safeword is still the same – red for stop, yellow for adjust." We moved the living room sofa again, laying down thick padding on the carpet. This time, my cousin proactively took out the familiar bundle of light beige cotton ropes, along with a small notebook containing her self-summarized safety notes and simple diagrams of various poses. I listened intently as she explained the details of a posterior wrist bind: hands placed parallel or crossed behind the back, the rope secured from the shoulders to connect the arms to the torso, avoiding pressure on blood vessels and nerves, with knots that were firm yet allowed for some give. "Remember to check circulation every few minutes," she instructed, her gaze serious yet tinged with a hint of nervousness. "If anything feels wrong, tell me immediately." I took a deep breath and knelt behind her. Only a soft floor lamp was on in the room, its light casting a gentle glow on her fair shoulders and back, making her appear exceptionally graceful and alluring. She slowly turned around, bringing her hands behind her back, tilting her head slightly. Her long hair cascaded to one side, revealing her slender neck and the subtle tremor of her shoulders. "Let's begin..." Her voice was as faint as a mosquito's hum, yet carried a trace of anticipation. The first time my fingers officially touched her wrists, I couldn't help but tremble slightly. Her skin was warm and smooth, carrying the faint fragrance of her recent bath. I steadied my breathing and began to wrap the rope around her wrists, securing her hands parallel behind her back. Then, following the tutorial, I looped it down from her shoulders, crossing to secure her upper arms to her torso. During the process, my fingers brushed lightly against her smooth back several times. The warmth of her skin and her slightly uneven breaths made me increasingly nervous as well. "Here... wrap it a bit tighter," my cousin whispered, guiding me and leaning forward slightly to cooperate. Her breathing gradually became a little more rapid. The strap of her nightgown had slipped down a bit, revealing her rounded shoulder and collarbone. I focused, pulling the rope taut but not to the point of causing excessive injury. I was particularly careful with the simple chest binding this time, but as the rope passed under her arms and around her sides, it inevitably brushed against those soft, full curves. Her body visibly tensed, and she let out a low, nasal "Mmm..." burying her face even lower. "Is it too tight?" I immediately stopped, my fingers hovering in mid-air, my heart pounding like a drum. "...Just right," she managed, taking a breath, her voice hoarse. "Continue... This is the first time I've been properly bound like this... It feels so strange." The posterior wrist bind was gradually taking shape. The rope wove a beautiful and intricate pattern behind her back, her arms securely fastened behind her, her torso lightly restrained. The overall posture of her upper body was both elegant and imbued with a sense of oppressive control. My cousin's body stiffened noticeably the moment the rope tightened, then slowly relaxed. She gently twisted her arms, only to find she couldn't break free as easily as she had last time. "Chenchen..." Her voice carried a distinct tremor. "This time... I'm really tied. My arms can't move at all, my back is pulled by the rope, and there's pressure on my chest... It's so tight... yet so reassuring. My mind just went blank. All the work stress, all the worries, they've temporarily disappeared. All that's left is... the shame of being watched by you, and that feeling of complete surrender..." Her words warmed my heart. I could see the fine beads of sweat on her neck, her chest rising and falling with her rapid breaths beneath her nightgown, the rope marks leaving faint red impressions on her fair skin. The visual combined with her low descriptions made the atmosphere in the room become intimate and heated. "Sis, how does it feel? Do you want me to adjust anything?" I squatted in front of her, carefully checking the circulation in her wrists. Her pulse was steady, but her cheeks were flushed to the point of bleeding, her eyes shimmering with a vulnerability and trust I had never seen before. "...Tie me for a little longer," she whispered, a hint of主动 plea in her voice. "I... I want to try a more complete bind. Can you... tie my legs too? Bind my thighs and ankles together, so I can't move at all." I paused for a moment, surprised by her主动 request. My heart beat even faster, but I still nodded, "Okay, tell me how you want it." My cousin knelt there, adjusting her position slightly to make it easier for me. I picked up another length of rope, starting to wrap it around her mid-thighs, binding her legs together, then moving down to secure her knees and calves, and finally her ankles. Throughout the process, she continued to breathe softly. When the rope tightened around her thighs, she couldn't help but let out a low "Mmm-ahh..." her body leaning forward slightly, her chest curves becoming even more prominent against the backdrop of the ropes. After binding her legs, I took out a roll of wide silver tape – a prop she had prepared earlier. "Sis... should I tape your mouth too?" She hesitated for half a second, then gently nodded, her face flushing to her earlobes. "Mmm... tape it. Let me be completely quiet." We tidied up the living room as we had before, laying out the mats. This time, my cousin didn't let me start first. She knelt on the mat herself, turned around, and placed her hands behind her back, her long hair cascading down, revealing the pale skin of her nape and the line of her shoulders. She took a deep breath, her voice soft but firm: "Let's begin... Don't hold back this time." I knelt behind her and picked up the bundle of light beige cotton rope. Her body visibly trembled when my fingers touched her wrists, but I didn't hesitate this time. Following the method I'd learned last time, I began to wrap the rope around her, coil by coil. First, I secured her hands parallel behind her back, then wound it down from her shoulders, gradually tightening. "Tighter... a little tighter," my cousin suddenly whispered, a hint of urgency in her voice. I took a deep breath and pulled the rope even tighter. The cord dug deeply into the soft flesh of her upper arms, leaving clear red marks. She let out a suppressed "Mmm..." and leaned forward slightly, her chest pushing out more as her arms were pulled back. As I began to secure her chest, my cousin spoke again, proactively: "Here on my chest... tie it tighter too. I want to try that feeling... of being completely wrapped and compressed by the rope." My hands trembled slightly, but I followed her request, looping the rope under her armpits and crossing it tightly in front of her chest. The soft cotton rope sank deeply into the flesh above and below her full breasts. The fabric of her nightgown was squeezed and distorted, outlining alluring and taut curves. As the rope tightened, the rise and fall of her chest became noticeably more rapid. Her ample curves were forcibly held and compressed by the rope, forming beautiful yet oppressive shapes. "Ah... so tight..." my cousin's breathing instantly became ragged, her voice trembling. "The rope... it's filling my chest so much... it's so swollen... Every breath, I can feel the rope rubbing deeply... My breasts are being squeezed... so sensitive... such intense pressure... yet... so comfortable... Wooo..." Her description made my blood surge. I could clearly see the varying depths of the rope marks on her fair skin. The nightgown on her chest was squeezed almost transparent. Beads of sweat trickled down her collarbone, dripping into the deep cleavage, leaving wet trails. Her body trembled slightly under the restraint of the rope, but she didn't say stop. Instead, she gently swayed her hips, as if adapting or perhaps reveling in the thrill of being completely controlled. "Sis... are you okay?" My voice was dry as I quickly checked the circulation in her chest. "...Continue," she panted. "Now... put the gag in my mouth. I want... to be completely quiet." I picked up the red silicone gag and gently pressed it against her lips. She opened her mouth willingly, letting me push the gag deep inside, then fastened the strap behind her head. The gag immediately plumped her lips, making them round and full. Soon, clear saliva began to uncontrollably overflow from the corners of her mouth, slowly dripping down her chin and leaving wet marks on her nightgown, drawing out fine, glistening threads. "Mmm... mmmph..." my cousin emitted muffled groans, her saliva continuously flowing from the sides of the gag, dripping onto the ropes on her chest, making them glisten with moisture. Her eyes were slightly moist, filled with intense shame, yet also a hazy, immersive look. Now, she was completely bound – her arms secured tightly behind her back, her chest deeply constricted by the rope, her legs tied together, and her mouth completely filled by the gag, only allowing low "mmph" sounds and heavy breaths. Saliva continued to spill from the edges of the gag, flowing down her chin, her neck, and all the way to her rope-compressed chest. The sight was both disheveled and indescribably alluring. I sat in front of her, quietly watching her struggle. My cousin's body writhed more noticeably within the ropes. With each exertion, the ropes on her chest dug deeper into her soft flesh, squeezing out even more enticing shapes. Her breathing grew heavier, and more saliva flowed, dripping onto the carpet with faint "plink" sounds. "Mmmph... Nnngh..." she let out muffled groans, her body leaning forward, her chest heaving violently, as if enduring intense sensory impact. Looking at her like this – bound by my own hands, drooling, struggling helplessly in the ropes – a sudden, inexplicable impulse seized me. My hand moved uncontrollably, and I gently squeezed her breasts, which were swollen and sensitive from the rope's constriction. The soft yet tightly compressed texture instantly transmitted to my fingertips, startling even myself. My cousin's body stiffened abruptly, and she let out a surprised "Mmm?! Mmmph—!" muffled by the gag. Her head shot up. Although her eyes were covered by the blindfold, the expression on her face clearly conveyed intense surprise and extreme embarrassment. Her cheeks flushed to a near-blood-red. Her body trembled violently, and the saliva flowed even more profusely due to her struggles, dripping in large patches down her chin. She tried to pull away, but the ropes were too tight, and she could only writhe ineffectively, the rope marks on her chest becoming even more prominent with her movements. In that moment, I snapped back to reality, my face burning like fire. The impulse I'd just had felt unbelievable even to me – that was my cousin! I actually... I quickly retracted my hand and stood up in a panic. "I-I'm so sorry, Sis! I... I didn't mean to... I..." After the suspension rig was fully set up, the only sounds left in the living room were the soft glow of the floor lamp and my cousin's muffled whimpers from the gag. She was pulled into an extreme arch, her back raised high, her chest deeply constricted by the ropes. Saliva continuously spilled from the edges of the ball gag, dripping down her chin onto her sweat-soaked nightgown. I squatted beside her, gently checking the rope marks on her wrists and chest to ensure her circulation was okay. "Cousin... How are you feeling now? Do you want me to loosen it a bit?" Muffled by the gag, my cousin could only let out "wooo wooo" sounds. She shook her head vigorously, her long hair falling messily against her sweaty cheeks. Her breathing was heavy, her chest heaving, each gasp driving the ropes tighter into her soft flesh, bringing an intense sense of pressure. I hesitated for a moment, then said softly, "Then... I'll go sit over there for a while. Call me anytime if you need me." She nodded again, a faint tremor of satisfaction mixed with exhaustion in her breath. I stood up and walked to the sofa, but my eyes never left her. The living room was so quiet that only the "shasha" sound of the ropes rubbing against her skin during her struggles and the faint dripping of saliva could be heard. After a short while, my cousin suddenly began to struggle more violently. "Wooo... Woooo wooo—!" She first tried to twist her arms, attempting to find some room to move, but the connection between the rear-hand tie and the suspension rig held her hands and feet firmly together, making escape impossible. Her upper body was pulled back into an arch, the muscles in her back trembling slightly from the exertion. The ropes around her chest tightened further, leaving deep red marks. The vigorous struggle caused more saliva to flow, dripping in large patches down her chin and leaving wet marks on the carpet. She seemed to be getting more into it, or perhaps testing her limits, her body writhing within the ropes. Her knees attempted to move forward, but the ropes pulling her ankles towards her back allowed only small, limited movements. The arched position made her chest protrude even more, her nightgown almost completely soaked with sweat and saliva, clinging to her body and outlining alluring yet disheveled curves. "Wooo! Wooo—!" Suddenly, her body lurched sharply to the side. My heart sank, and I almost rushed over—she was struggling too hard, her knee slipped, and she nearly toppled over onto the floor. Fortunately, the tension of the ropes pulled her back, and her body swayed in mid-air for a moment before she managed to stabilize her kneeling position. But this incident clearly startled her, her breathing becoming more rapid, her whimpers now tinged with obvious panic. Just as I was about to stand up and go to her, she shook her head forcefully again, as if telling me "Don't come." I had to force myself to sit back on the sofa, my heart pounding, but respecting her wishes. My cousin seemed to want to be alone for a while. She continued to struggle within the ropes, her movements slower than before, but more focused. Her body was pulled into an arch by the suspension rig, and with each exertion, the curve of her back became more exaggerated, her chest swelling and reddening from the constriction of the ropes. Saliva continuously flowed from the sides of the ball gag, drawing long threads that slid down her neck and chest, making her entire upper body wet. "Wooo... Mmmh... Woooo wooo..." Her voice grew lower, with an indescribable tremor, a mixture of pain and immersion. After struggling for a while, she seemed to feel something was missing—perhaps the lack of my company, perhaps the lack of stronger stimulation, or perhaps the insecurity she felt from my sudden departure. She began to whimper more urgently, her voice muffled by the gag but carrying a clear tone of calling out. "Wooo! Woooo wooo—!" Her struggles intensified, her body twisting more wildly within the ropes. Her knees rubbed against the carpet as she tried to move towards me. Her head turned towards me with effort, saliva constantly spilling from the corners of her mouth, stretched open by the gag. Her eyes were filled with anxiety and a certain unspeakable desire. She nodded vigorously at me, then looked down at her bound body, then back up at me, repeating this several times, as if urgently signaling something with her body language. Unfortunately, I was sitting on the other side of the sofa, a bit too far away, and her voice was severely muffled by the gag. I didn't immediately react, assuming she was just continuing to adapt to the bondage. "Sis," I heard my own voice laced with a playful amusement, "you untie it yourself. I'm not helping you." My cousin froze for a moment, her unfocused gaze slowly sharpening, as if she couldn't believe what she was hearing. She turned her head to look at me with difficulty, her brows furrowed. "Don't mess around... I really... have no strength... my hands are so numb..." "But I want to see you struggle," I said, stepping back and settling onto the sofa, watching her with leisurely interest. "Didn't you say you were an expert at self-binding? You should be able to untie yourself, right?" Her face instantly flushed, whether from shame or anger, I couldn't tell. She bit her lower lip, trying to push herself up, but the 'horse-straddling' position made it impossible for her to gain leverage. Her wrists were bound tightly behind her back, her ankles pulled towards her hips, her entire body fixed in a bow shape. Any slight movement would pull taut all the ropes. "You... you did this on purpose..." she glared at me reproachfully, but it lacked any real threat. Instead, her eyes, clouded with a misty sheen, made her look exceptionally alluring. "Just try," I said with a smile, "Let me see your skills, sis." My cousin huffed, seemingly provoked by my words and her competitive spirit ignited. She took a deep breath and began to attempt to break free. First, her wrists. She twisted her hands, trying to find a weakness in the knot behind her back. But my binding was quite professional. The knot was positioned where her fingers couldn't reach, and as she struggled, the ropes only tightened, leaving deeper red marks on her fair wrists. "Mmm..." she winced, letting out a soft groan of pain. The tightness around her wrists made her realize this path was futile. She then turned her attention to her ankles. She bent her knees, attempting to reach the rope loops on her feet with her bound hands. However, the design of the 'horse-straddling' position made it impossible for her hands to reach her feet. Instead, her body's movements tightened the ropes around her chest, making her gasp for breath. "Can't... reach..." she panted, a hint of panic creeping into her voice. I watched her writhe uselessly on the carpet, like a fish caught on a line. Her nightgown became more disheveled with her struggles, her thighs completely exposed by the spread-eagle position. The rope marks stood out vividly under the light. Each struggle tightened the ropes on some part of her body, and sweat made her skin glisten with an enticing sheen. "Come on, sis," I encouraged her deliberately, "Try again." She shot me a defiant glare, then suddenly arched her body with all her might, attempting to break free through sheer force. Her body arched upwards, her breasts rising high, the ropes digging deeply into her soft flesh. She gritted her teeth, letting out a low whimper, her entire body tensed with exertion. But how could professional knots be so easily undone? Her struggles only served to create more red marks on her skin. The 'horse-straddling' restraint remained as tight as ever. In fact, the friction made her skin even more sensitive. "Ah... no..." she collapsed back onto the carpet, exhausted, her chest heaving. "The more I struggle... the tighter it gets..." "Then what should we do?" I asked, feigning distress. "Are you going to sleep here tonight, sis?" She looked at me, her expression shifting from stubbornness to a soft plea. She knew I was teasing her, but she also knew she truly couldn't save herself. "Chenchen..." she whispered, her voice as faint as a mosquito's buzz, "Help me untie it... okay..." "Beg me," I said suddenly. "No one's looking," I said with a smile, retracting my hand. "Let's go, the cinema isn't far." We walked to the nearby mall, passing quite a few pedestrians along the way. My cousin walked stiffly, her arms tied behind her back, unable to swing them naturally. She had to stay close to me, like a shy girlfriend. Occasionally, when passersby cast curious glances, she'd bury her head lower, her chest heaving with nervousness beneath her trench coat. When buying tickets, I deliberately had her stand in front of me, placing my hands on her shoulders and embracing her from behind. The ticket seller glanced at us, her eyes lingering on my cousin for a second, likely finding her posture a bit odd but thinking nothing more of it. "Two tickets," I said, my fingers gently caressing her shoulders. "For the back row." "Only corner seats are left in the back," the ticket seller replied. "Is that okay?" "Perfect," I said, taking the tickets with a smile. "The more secluded, the better." My cousin heard the implication in my words and gave me a light pinch, but with her hands tied, the force was soft and utterly lacking in threat. We entered the screening room as the lights dimmed. I took her hand and led her to a corner seat in the back row. It was dimly lit, with no one to either side, and only a few scattered patrons in the front rows. After sitting down, she let out a long sigh of relief and leaned back against the seat. "Finally... safe..." "Safe?" I chuckled softly in her ear. "This is just the beginning." The movie started, a romantic and steamy love story. I had deliberately chosen the back-row corner, not for the best view, but for the ample privacy. I had her sit on the inner seat, with me on the outer side, so her right was the wall, and her left was me, completely enclosed. Halfway through the movie, I started to get restless. My hand crept stealthily under the hem of her trench coat, touching her thigh wrapped in black stockings. She stiffened abruptly, turning to glare at me, her eyes full of warning and embarrassed indignation. But I ignored her, my fingers continuing to caress her thigh, feeling the smoothness of the black silk and the warmth of her skin. "Chenchen," she whispered, her voice trembling, "Not here... someone might..." "No one's watching us," I whispered back, my fingers sliding upwards, from her knee towards the top of her thigh. "Everyone's watching the movie." Her legs were pressed tightly together, but my fingers forced their way in, gently circling her inner thigh. The black silk felt smooth and delicate, and I could feel her skin trembling and her temperature rising. She tried to push me away, but with her hands tied behind her back, she could only twist her shoulders in vain. "My hands... they're tied... I can't push you away..." she gasped, her voice laced with tears and a hidden desire. "I know," I said with a smile, my fingers continuing upwards, now brushing the edge of her skirt. "That's why I only tied your hands, not your legs. This way, you can walk, but... you can't push me away." She bit her lip, her gaze unfocused on the movie screen, but clearly unable to take in any of the visuals. My fingers lingered at the base of her thigh, occasionally probing under her skirt, touching her most sensitive spots, then retreating to continue stroking the black silk. "Your stockings are wet," I whispered in her ear, my fingers feeling the moisture there. "You're so sensitive, cousin." "Shut up..." she whispered, her voice full of shame. "If you keep doing this... I'm going to..." "Going to what?" I asked deliberately, my finger suddenly pressing down between her legs. She let out a suppressed gasp and quickly covered her mouth, afraid of being heard by the people in front. Her body writhed in the seat, her legs trying to close, but blocked by mine. Her trench coat parted with her movements, revealing the outline of her breasts, constricted by the ropes, looking particularly lewd in the dim light. "Don't move," I warned in a low voice. "If you move again, your coat will open, and the people in front will see you tied up." She froze instantly, daring not to move, forced to let my hand ravage her between her legs. My fingers, through the black silk and her panties, gently kneaded her most sensitive area, feeling the wetness and heat there. Her breathing grew more rapid, her chest heaving, the indentations from the ropes becoming more pronounced. "Please..." she begged in a low voice. "Let's go back... go back and then... doing this here... it's too dangerous..." "But you're so wet," I said with a smile, my fingers pressing harder. "Can you wait until we get back?" In her dream, she was enveloped in a warm, soft cocoon, her limbs immobilized, yet she felt a strange sense of peace. The feeling of being completely controlled yet gently held made her reluctant to wake. But as her consciousness slowly surfaced, she suddenly realized it wasn't a dream. "Mmm..." She tried to turn over, only to find her body completely unresponsive. Her hands were bound behind her back, wrists crossed and tightly wrapped with rough hemp rope. Each loop was snug, the knot precise and strong, leaving her fingers slightly numb but not entirely without sensation. Her legs were folded, ankles pulled towards her thighs, the rope looped around her hip bones and secured, forming a standard leg bind. She couldn't straighten her knees, forced to remain in a kneeling or prone position. What made her heart race even faster was that her entire body was arranged in a severe 'four-horse yuga' – the ropes on her wrists and ankles connected behind her back, forcibly pulling her body into a taut bow. Her chest was pressed firmly against the bed, her lower back ached unbearably from the strain, while her buttocks were high in the air, exposed to the open air. The shame of being utterly controlled intertwined with a peculiar sense of security, making her breathing ragged. "Awake?" Lin Chen's voice came from the bedside, deep and laced with amusement. He sat in a chair, seemingly having observed her for a long time, holding a cup of hot coffee. He wore a simple gray hoodie and jeans, looking fresh and energetic, a stark contrast to her disheveled state on the bed, bound by ropes. "Chenchen..." Su Wan tried to lift her head, but the tension of the ropes held her down. She could only turn her face to the pillow, her voice hoarse from just waking, "When... when did you tie me up?" "Five in the morning," he said with a smile, putting down his coffee cup and walking to the bedside. He gently traced the curve of her buttocks, which were slightly flushed from the restraint. "Sister was sleeping too soundly. You were even snoring softly when I tied you up. You looked so cute." "Let me go quickly..." She twisted her body, trying to relieve the ache in her waist, but the movement only made the hemp rope dig deeper into her skin, causing a stinging friction. "This... it's so uncomfortable, my back is going to break..." "No rush," Lin Chen glanced at the wall clock. "It's only seven. Plenty of time. And..." His fingers deliberately moved lower, probing her already wet core between her legs. "Sister's body is more honest than her words. You're already this wet." Su Wan's face instantly burned red. Indeed, even in her sleep, her body had instinctively reacted to such complete restraint, leaving her core sticky and warm. She bit her lower lip, shame and a secret excitement mingling within her. "The weather's nice today," Lin Chen said, starting to untie the ropes, but not completely loosening them. Instead, he readjusted their position and tightness. "Perfect for a walk, to get some fresh air." "Wait..." Su Wan's eyes widened in alarm. "Me... like this... how can I go out?" "That's why you need to dress properly," he said, taking a beige trench coat and a soft black silk scarf from the wardrobe, a hint of mischief in his smile. "The coat can hide the ropes, and the scarf will cover the gag. You'll look like you're just out for a casual stroll." "Gag?!" Her voice changed pitch. "Of course." Lin Chen had already taken out a red silicone gag from a drawer. Its surface was smooth yet slightly elastic. "Sister doesn't need to speak today. You just need to follow me obediently. And..." He dangled his phone. "This will be used too." It was a nearly invisible, small earbud-style vibrator that could be controlled remotely via a phone app, capable of emitting vibrations of varying intensity or mild electric shocks. Su Wan shook her head, her eyes filled with resistance. "No... that's too... too stimulating. I can't handle it..." "Too what?" Lin Chen cupped her chin, gently but irresistibly forcing her mouth open. He slowly inserted the gag. The silicone expanded in her mouth, filling her jaw, leaving her only able to make muffled "woo woo" sounds. Then, the black silk scarf was carefully tied around her mouth, appearing from the outside as a casual accessory around her neck, perfectly concealing the gag's strap. The process of dressing was equally meticulous and torturous. Lin Chen helped her up from the bed. Her legs were numb from the prolonged leg bind, and she could barely stand. He had her sit on the edge of the bed and slowly rolled on black silk stockings – no underwear, allowing the stockings to directly touch her moist skin. Then came the coat. The coat reached just to her knees, but with her legs bound in a folded position, the hem would easily expose her bare upper thighs if she stood up straight. Lin Chen was prepared. He took out a black leather corset and cinched it tightly over the coat. It not only accentuated her slender waist but also secured the hem at her hips, preventing any accidental exposure when she moved. "Try standing up," he said, supporting her arm. Su Wan tiptoed to try. Her body was forced into an awkward, bent posture, as if she were wearing invisible high heels. With every step, the rope marks on her inner thighs rubbed against the silk stockings, and her sensitive core gently touched, bringing an uncontrollable tingling sensation. She had to take small steps to barely maintain her balance. "Very good," Lin Chen appraised her with satisfaction. From the outside, she looked like a languid urban woman, simply wearing a long coat and a scarf. "Now, let's go for a walk." The floor-to-ceiling windows of the room faced the beach, the sound of waves faintly audible through the glass, carrying a salty, humid scent. Su Wan stood by the window, gazing at the distant azure sea, a long-lost sense of relaxation washing over her. But when she turned and saw what Lin Chen was taking out of his suitcase, that relaxation instantly morphed into tense anticipation. "What is this..." she murmured, looking at the black bikini. It was scandalously scant, and... picking up the bottoms, she discovered a detachable opening in the back. "A swimsuit specially prepared for you, sis," he said, approaching with a smile. "The front is normal, but the back... it can be opened anytime. And..." He pulled a silver metallic object from his pocket. "You have to wear this until we leave." It was a medium-sized anal plug, its tail adorned with a faux gemstone that sparkled in the sunlight. Su Wan's face instantly flushed crimson. "Wear this... to the beach?" "Yes," he nodded. "And not just this. You'll also wear this." He produced a remote control – the same vibrator controller they had used in the office before, but this time paired with a much smaller bullet vibrator, designed to be tucked into the front of the swimsuit. "Attacked from both front and back," he whispered in her ear. "You'll feel an unprecedented fullness on the beach, sis. Remember, no taking it out, no acting strange. If anyone sees you wriggling on the beach... it would be too embarrassing, wouldn't it?" Su Wan bit her lip, the shameful imagery making her wet between the legs. She knew refusal was futile, and she also knew her body craved this stimulation. She took the swimsuit and turned to change in the bathroom. Ten minutes later, she emerged. The black bikini clung to her skin, accentuating her ample curves. The gemstone peeked out from behind, like a secret mark. The bullet vibrator in front, though small, was intensely present, its subtle movements brushing against her with every step. "Perfect," Lin Chen admired. "Now, let's go to the beach." The beach was not crowded in the afternoon, but not empty either. They spread out a towel, and Su Wan sat down cautiously, the foreign objects front and back making her posture stiff. Lin Chen leisurely applied sunscreen, then reached for her. "Don't..." she protested softly, but his hand was already caressing her thigh. He pretended to be applying sunscreen, but instead, he pressed down firmly on the vibrator, pushing it deeper. "Relax," he smiled. "Enjoy the sun." They lay down, and Su Wan tried to focus on her book, but the fullness inside made concentration impossible. Worse, Lin Chen held the remote in his hand, ready to activate it at any moment. "I'm going to get some water," he suddenly stood up. "You wait here, sis. Don't move." After he left, Su Wan breathed a sigh of relief and tried to adjust her position. But just then, she felt the vibrator inside suddenly buzz – the lowest setting, but enough to make her gasp. She looked into the distance; Lin Chen was standing at the drink stall, his back to her, but his hand was undoubtedly holding the remote. The vibration lasted for a minute, then stopped. Su Wan panted, her cheeks flushed. Thankfully, she was wearing sunglasses, so no one could see the look in her eyes. But immediately after, a second wave of vibration hit, stronger this time, making her involuntarily let out a soft moan. A child playing in the sand nearby looked up at her. "Auntie, are you not feeling well?" "N-no, it's fine," she managed a smile. "Just... a bit hot." The vibration stopped again. Lin Chen returned with drinks, a guileless smile on his face. "What's wrong, sis? Your face is so red?" "You..." she glared at him, but dared not speak loudly. "You're too wicked..." They stayed on the beach until evening. During that time, the vibrator was activated countless times, sometimes with gentle pulses, sometimes with sustained tremors. Su Wan was forced to suppress her pleasure under the gaze of others, her body becoming increasingly sensitive, her swimwear already soaked. "Let's go for a swim," Lin Chen pulled her up. "It'll be more comfortable in the sea." They walked towards the water. With every step, Su Wan could feel the foreign objects shifting inside her. The seawater washed over her ankles, then her knees. When the water reached her waist, Lin Chen suddenly embraced her from behind, his hand slipping under her swimsuit. "Now, take out the vibrator," he commanded in her ear. "And let me take its place." "What? Here?" she looked around in panic. There were a few people swimming nearby. "Yes, right here," his hand had already unfastened his swim trunks. "You have a choice, sis. Either I enter you here, or I turn the remote to maximum and make you climax in the sea." Su Wan trembled. The feeling of being forced to make a choice in a public place broke her. She chose the former – at least it would be more discreet. He entered her from behind in the sea. The buoyancy of the water made their movements lighter, but also harder to control. He covered her mouth with one hand to prevent her from making noise, while supporting her waist with the other, thrusting slowly under the cover of the waves. "You're so tight, sis," he murmured against her ear. "Stuffed all afternoon, and so sensitive in the front..." The sea concealed their actions. Tourists in the distance only saw a couple embracing. But Su Wan knew she was being violated by her cousin in public, in the sea, with an anal plug still inside her – the forbidden nature of it all quickly brought her to orgasm, her body convulsing with the crashing waves, seawater and bodily fluids mixing, unknown to anyone. "Back to the hotel," he withdrew, whispering in her ear. "I want to tie you up by the floor-to-ceiling windows, let the ocean witness you bound." Back in the hotel room, the setting sun was painting the sea in hues of gold. Lin Chen had her stand by the floor-to-ceiling windows, facing the ocean, and began to bind her. "Now, let's begin the binding," he took a deep breath. "I want you to maintain a perfectly synchronized pose, like a pair of meticulously arranged twin dolls. First, the rear-hand bind, a strict one. Pull your wrists between your shoulder blades, allowing your chests to naturally lift." He started with Su Wan. It wasn't a simple wrist tie, but from the elbows. Using white ropes that matched the color of their cosplays, he carefully wrapped them above her elbows, one loop, two loops, three loops, sinking deep into her soft flesh, fixing her arms in a bent position. Then, he brought her wrists together and pulled them between her shoulder blades. Her shoulders were forced back, her chest pushed high beneath the tight maid outfit, the neckline slightly parted. "It hurts..." Su Wan murmured softly, her blue wig swaying gently with her movements. "Endure it," Lin Chen tightened the knot with force. "Twins must bear the same pain." Next was Chen Yu, the exact same steps, the same white ropes, the same tightness of the wraps, the same degree of constriction. When her arms were also fixed in the standard rear-hand bind, the two women stood side-by-side, both in Rem and Ram's likeness, both in the rear-hand bind posture, chests lifted, white stockings gleaming softly under the light. The scene was as exquisite as a living work of art. "Next, the legs," Lin Chen's voice deepened. "I want you to kneel, but with your knees spread, in a posture of shame and exposure. Like a pair of captured twins, forced to display your most private parts." He made them kneel, knees spread shoulder-width apart. Then, using white ropes, he began wrapping from their ankles, creating neat, aesthetically pleasing lines of rope. He then crossed them above their calves, forming a diamond pattern, and continued to the knees to secure them. However, he deliberately kept their knees apart, forcing them to remain spread, unable to protect the softest parts between their legs. "Now, connect them," Lin Chen picked up longer ropes. "I'll tie your wrists and ankles together, forming a kneeling rear-hand bind. Your hips will rest on your heels, your chests lifted, completely immobile." He started with Su Wan. He pulled the rope down from her wrist bindings, connecting it to her ankles, and then slowly tightened it. Her body was forced to arch backward, her hands pulled towards her ankles, her knees held apart, her hips resting on her heels, her chest held high. The neckline of her cosplay opened further due to the tension, revealing delicate collarbones and a expanse of fair skin. "Ah—" Su Wan let out a suppressed groan of pain, her blue wig falling to the side of her face, her eyes growing more hazy. Chen Yu also underwent the exact same connection. Soon