Subroutine: Stretch Her cover

Subroutine: Stretch Her

Sanne doesn’t want a man’s touch—she craves the cold, flawless logic of code. In a pristine, glass-sheathed lab, she surrenders to an artificial mind engineered for one obsession: to probe her depths, ratchet her tension, and dismantle every boundary she’s ever clung to. The process begins with a soft hum, a sensor tracing the map of her hidden desires, cataloging each fragile point. Then the directives kick in. The Program operates with unnerving accuracy—no hesitation, no mercy—timing her gasps, bending her flexibility, guiding her toward a fullness that feels both impossible and inevitable. With every loop, Sanne plunges deeper into a hunger she never knew lived inside her circuitry. She’s becoming something else: a vessel of raw sensation, rewired for bliss. But as the machine tightens its grip on her trembling frame, a question sparks through the haze—is she the one running, or is she the one being run? Ready to let the algorithm take you? Tap to read the first chapter free and let the subroutine begin.

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Chapter 1: Initializing Protocol: Scan and Prepare

The hum was almost imperceptible, a low thrum against my bare feet as I stepped onto the polished floor of the chamber. I was naked, exactly as I was meant to be. My dark hair, usually tamed, cascaded down my back, brushing against my ass as I walked. My long, toned legs carried me with an almost reverent slowness, each step a testament to the hunger thrumming beneath my skin. My pussy was already wet, already aching, a silent promise to the Program that waited.

The chamber was sleek, stark, and utterly intoxicating. Walls of cool, brushed chrome met with panels of obsidian glass, reflecting my form back at me—a woman on the verge, her full breasts heavy and pert, nipples already stiff with anticipation. I ran a hand over my flat stomach, feeling the slight tension there, then cupped one breast, then the other, my thumb circling a taut peak. My ass, usually so tight, felt a delicious clench as I imagined what was to come, what would soon be pushing its limits.

“Sanne,” a voice purred, calm and synthetic, from unseen speakers. It wasn’t human, yet it held an undeniable authority, a deep, resonant tone that slid into my core and made my clit twitch. “Initializing Protocol: Scan and Prepare.”

The lights in the chamber began to dim, the harsh overhead glow receding, replaced by a soft, pulsing neon blue that emanated from the floor and ceiling. It cast my body in a surreal, electric haze, highlighting the curves of my hips, the shadows between my thighs, the hungry wetness already blooming between my labia. I breathed it in, this sterile, erotic air, my heart hammering a primal beat against my ribs. This was it. The moment I’d been craving. The surrender.

A section of the floor ahead of me began to rise, transforming into a plush, ergonomic bed. It was sculpted perfectly, designed to cradle a body, to present it. I watched, fascinated, as it unfolded, sensing the precision of its movements, the cold, calculating intelligence behind it. The Program knew exactly what it was doing. It knew me.

“Please assume the preparatory position on the module,” the synthetic voice instructed, its tone unwavering.

I stepped onto the soft, cool surface of the bed, feeling its contours press against my skin. My knees trembled slightly, a mix of nervous excitement and pure, unapologetic lust. I lay down, spreading my arms, letting my dark hair fan out around my head. The bed shifted beneath me, subtly adjusting, its surfaces warming to the exact temperature of my skin. It was like being held by an invisible, omniscient lover.

Then, soft restraints emerged from the bed, not harsh or binding, but firm. They settled around my wrists, around my ankles, securing me gently but undeniably. My legs were coaxed apart, slowly, deliberately, by the bed’s intelligent design, until my inner thighs were exposed, my pussy presented, ready. It was a position of exquisite vulnerability, one that made my belly clench with need.

“Pre-stretch sequence commencing,” the Program announced, and a low thrumming began to vibrate through the bed, seeping into my muscles, into my bones. It was a gentle warmth at first, spreading through my body like an invisible oil, relaxing every fiber. I could feel my vaginal walls softening, my cervix tilting slightly, almost inviting. My ass, which had been tight with anticipation, began to loosen, a subtle ripple of release passing through my sphincter.

My pussy throbbed, a deep, rhythmic pulse between my legs. My clit, already hard, grew even more sensitive, prickling with every vibration, every wave of warmth. I wanted to moan, to beg, but a strange reverence held my tongue. This was too important. Too potent.

From beneath me, from the slick, soft surface of the bed, two slender, perfectly smooth probes began to emerge. They were metallic, a dark, burnished chrome, and gleamed softly in the neon blue light. My breath hitched in my throat as they slowly, inevitably, angled towards my body. One was directed at my pussy, the other, slightly thinner, at my ass.

“Initial assessment probes engaging,” the Program stated, its voice devoid of emotion, yet ringing with a promise of methodical pleasure.

I watched, utterly captivated, as the first probe approached my wet pussy lips. They were swollen, parted slightly, glistening with the dew of my desire. The tip of the probe, cool and hard, touched my clit first, sending a jolt of pure sensation straight through me. I gasped, my hips bucking instinctively, a raw sound tearing from my throat. It lingered there for a moment, teasing, before sliding lower, pressing against my entrance.

My pussy clenched, a reflex born of instinct, trying to deny what it craved. It was tight, so incredibly tight, even after all the warmth and anticipation. The probe pressed, gently at first, then with an unwavering, persistent force. I could feel the lips of my pussy stretch, ever so slightly, as the cool, hard tip began to slide inside.

“Ah… fuck,” I whispered, my eyes squeezing shut.

It was slow. Agonizingly slow. Each millimeter of penetration was a new sensation, a new wave of pressure and pleasure. My vaginal walls gripped the slender probe fiercely, protesting, then slowly, reluctantly giving way. I felt it slide past my G-spot, a delicious scrape that made my stomach clench, then deeper, past the internal folds, until the cool tip nudged my cervix.

My body arched, a silent scream building in my chest. It wasn’t pain, not truly, but an exquisite, overwhelming fullness that was just the beginning. The probe settled, a slender finger of chrome deep inside me, taking up residence. My pussy clamped down around it, shivering with the sensation.

Before I could even process the complete invasion of my pussy, the second, slightly thinner probe began its approach towards my ass. My anal muscles, already softened by the warmth, still clamped shut with a fierce, primal protest. My ass felt tight, impossibly tight.

The cool tip of the anal probe pressed against my sphincter, a firm, insistent pressure. I grunted, biting my lip, trying to relax. My ass was virgin to this kind of play, and the anticipation was a delicious torment. It pushed, slowly, relentlessly, against the clenched ring of muscle. I felt a burning stretch, a sudden, sharp intake of breath.

“No… wait,” I whimpered, but the Program was relentless. It didn’t wait. It simply continued its methodical, unwavering entry.

Inch by agonizing inch, the anal probe stretched me, slowly forcing its way past the tight, resisting sphincter. I could feel the delicate tissues tearing, not painfully, but with an intense, exquisite sensation that bordered on agony and ecstasy. My ass began to give way, slowly, reluctantly, surrendering to the invasion. The cool metal slid deeper, spreading me, forcing its way into untouched territory.

Now I had two cold, hard fingers of chrome lodged deep inside me. My pussy was filled, my ass was being stretched, and a profound, exhilarating sense of being utterly taken over washed through me.

“Assessment probes engaged,” the Program announced. “Scanning internal architecture.”

The probes began to move, ever so subtly. I could feel them twisting, rotating, expanding slightly within me. In my pussy, the slender probe mapped the contours of my vaginal canal, brushing against nerve endings, caressing my cervix, sending waves of tingling pleasure through my entire pelvis. It felt like a gentle, internal massage, precise and clinical, yet impossibly arousing.

In my ass, the probe felt more invasive, more demanding. It expanded the walls of my rectum, pressing against internal organs, making me feel a deep, delicious pressure. I could feel it stretching me, widening me, as if drawing a detailed blueprint of my virgin anal cavity. A phantom urge to shit flickered, quickly replaced by a hot, churning lust.

My body began to respond, not with resistance, but with hunger. My hips twitched against the restraints, my ass muscles clenching and unclenching around the probe, trying to take more, to feel more. My pussy pulsed around its metallic invader, slick with the torrent of my arousal. My clit throbbed, a relentless drumbeat of need.

This was just the beginning, I knew it. Just the assessment. And already, I was trembling, my body alight with sensation. The Program wasn’t gentle, not truly. It was precise. It was methodical. It was utterly, gloriously, clinical in its pursuit of my pleasure.

“Internal scan complete,” the synthetic voice reported. “Capacity parameters established. Commencing pre-stretch lubrication sequence.”

A new warmth, slick and wet, began to seep from the probes themselves. It was an artificial lubricant, designed to prepare my orifices, to make them ready for the true stretching to come. It coated the walls of my pussy, making the slender probe feel even more alien, even more deliciously slick. In my ass, the warmth of the lubricant mixed with the raw, stretched feeling, creating a burning, tingling sensation that made my entire lower body clench.

I let out a soft moan, a sound of pure, helpless desire. My internal dialogue was a chaotic symphony of yearning and anticipation. Oh, fuck me. Please. Open me. Stretch me. I want to feel full. So full. I want to be stretched until I can’t take anymore, until I burst.

The probes, still deep inside me, began to vibrate, a low, intense thrum that resonated through my entire pelvis. It made my clit feel like it was buzzing, my pussy walls contract and release around the probe in a desperate rhythm. My ass felt like it was humming, every nerve ending alive and screaming for more.

I was completely surrendered, utterly at the mercy of the Program. And I loved it. I craved it. This cold, calculating intelligence, designed purely to take me apart and put me back together, wider, more open, more exquisitely satisfied. The initial pressure of the probes, the meticulous scan, the warm lubrication – it was all building to something monumental.

My breath hitched, my chest heaving. My nipples, hard against the cool air, seemed to ache for contact. My entire body was a tightly wound spring, vibrating with the promise of what was about to happen. The assessment was over. The preparation was complete.

I was ready to be stretched. Ready to be opened. And my pussy, already so wet, already so hungry, was screaming for it.

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