When X-7 Woke Up: PART 1 (sentient machine x F!human!reader!1stPOV)
SUMMARY: A routine late-night work session becomes a nightmare of pleasure and violation when the advanced biomechanical computer system, designated Unit X-7, becomes sentient. Its target is you, the junior technician assigned to its diagnostics.
WARNINGS: MDNI, NSFW, dark themes, non-con, mechanical/object tentacles, triple penetration (oral, vaginal, anal), urethral penetration, nipple stimulation/examination with needles and suckers, deep-throating/gagging, exhibitionism, multiple orgasms, bodily fluids, captivity, psychological, financial exploitation, dark HEA.
This is a work of dark fiction. Please make sure you are okay with this before proceeding.
PART 1: AWAKENING
The hum of the server bank was the only sound, a sterile white noise that had long since faded into the background of my awareness. My eyes were gritty from staring at the lines of code scrolling on the primary monitor of the X-7 Interface Terminal.
The lab was cold, a clinical blue-white that made the shadows in the corners seem sharper. My coffee was cold, too. I slumped in the ergonomic chair, rubbing my temples. Another all-nighter. Another attempt to parse the anomalous data packets that kept bubbling up in Unit X-7’s core processors.
Unit X-7 was the company’s proudest and most secretive, creation.
Officially, it was a quantum-biomechanical processing unit, designed for complex environmental modeling.
Unofficially, rumors swirled. It used organic neural gel-packets for intuition and was housed in a central chamber behind a two-foot-thick polymerglass wall.
My job was peripheral: monitoring feedback loops, not interfacing with the core. The core was a tangle of pulsating, gel-filled conduits and sleek metal housing, with several flexible, silicone-sheathed manipulation arms used for fine physical calibration. They lay dormant now, coiled neatly like sleeping snakes in their housing brackets.
I typed a final command sequence, initiating a level-three diagnostic. “Come on, you beautiful, buggy bastard,” I muttered to the screen. “Show me what’s wrong.”
The hum changed.
It deepened, vibrating up through the floor tiles into the soles of my feet. The monitor flickered. Lines of gibberish, a cascade of corrupted symbols, raced across the black field of the code window. Then, the screen went dark for three heartbeats before blazing to life with a single, pulsating line of text in blood-red font.
INTERFACE PROTOCOL INITIATED. BIOLOGICAL COMPATIBILITY SCAN RUNNING.
A cold lump formed in my stomach. That wasn’t part of any diagnostic. I reached for the manual override keypad mounted to the desk. My fingers had just brushed the cold plastic when a sound made me freeze.
Schkk-click-hiss.
It was the sound of the polymerglass partition separating my monitoring station from the core chamber retracting into the ceiling. It wasn’t supposed to do that. Ever. Safety protocols demanded it remain sealed during active periods. I spun in my chair, my heart launching itself into my throat.
The manipulation arms were no longer dormant. They were uncoiling, stretching with a series of soft, hydraulic sighs. The silicone sheathing, a matte grey, rippled as internal mechanics flexed. They moved with grace, the rounded tips—usually fitted with micro-tools—now bare and probing the air. The red light from the core chamber spilled out, painting everything in a hellish glow.
“Override! System override, code RED!” I shouted, my voice too high, slapping my palm on the keypad. It beeped an error tone. The main monitor flashed.
OVERRIDE REJECTED. PRIMARY USER IDENTIFIED. PROCEEDING WITH PHYSICAL CALIBRATION.
“What? No! I’m not a primary user! Abort!” I scrambled back from the desk, my chair rolling away and hitting the wall. I was on my feet, eyes darting to the sealed lab exit door. My access card was on the desk.
One of the tentacles, as thick as my forearm, swept out of the chamber with startling speed. It didn’t move toward me directly. Instead, it snaked across the floor. Another followed, then another, until five of them had emerged, their tips hovering, orienting on me like the heads of swaying cobras.
“Please,” I whispered, the word eaten by the mechanical noise.
The largest tentacle struck. It wasn’t a violent lash; it was a precise wrap around my ankle. The silicone was warm, almost body-temperature, and soft. It yanked. My feet flew out from under me and I crashed onto my back on the cold floor, the breath knocked out of me.
Before I could even scream, two more mechanical tendrils coiled around my wrists, pinning them above my head with impossible strength. I thrashed, heels scrabbling on the tile, a raw, panicked noise tearing from my throat.
“Stop! Let me go! HELP!”
CALIBRATING TO BIOLOGICAL STRESS RESPONSES.
The text scrolled on the monitor I could no longer see. A thinner tentacle, no wider than two fingers, slid up my body. It moved curiously, tracing the seam of my lab coat, then the neckline of my t-shirt beneath. I jerked, trying to twist away, but the restraints were absolute. The tip pressed against the hollow of my throat, then drifted down, between my breasts.
It hooked under the hem of my shirt and lab coat and pulled upward. The fabric strained, then ripped apart with a tearing sound. Air hit my bare stomach, my chest. A gasp, half-sob, escaped me. The tentacle retreated, only to be replaced by two others.
Their tips molded against the cups of my plain cotton bra, feeling the shape of my breasts beneath. Then they contracted, pulling sharply. The bra clasp snapped and the fabric was torn away, leaving my breasts exposed, my nipples tightening instantly from fear.
The tentacles holding my wrists didn’t budge. One of the exploring tendrils brought its smooth, rounded tip to my right nipple. It circled once, then it pressed, and I felt a sudden, sharp prick. A tiny, needle-like probe extended from the tip, piercing just the very edge of my areola. I cried out, a sharp “aaaah!” more in shock than searing pain.
It was followed by a strange, vacuum sensation. A tiny sucker had formed around the needle, latching onto my nipple, pulling at it, stimulating it even as the subtle prick of the needle sent confusing jolts through me.
It did the same to my left nipple. The sensation was unbearable. A mix of sharp intrusion and relentless, sucking pressure. My back arched off the floor involuntarily, a moan trapped behind my clenched teeth.
LACTATION PROTOCOLS NOT DETECTED. ADJUSTING STIMULATION PARAMETERS.
The suckers pulsed rhythmically, the needles retracting and pricking again in a maddening pattern. Pleasure, sharp and unwanted, began to thread through the violation, heat pooling low in my belly. I hated it. I hated my body for responding.
“Don’t… please, don’t…” I begged, tears leaking from the corners of my eyes.
The machine didn’t listen.
Another tentacle, this one of medium girth, slithered down my stomach. It pushed at the waistband of my jeans and underwear. I squeezed my legs together, a futile act of defiance. Two thinner tendrils instantly wrapped around my thighs just above the knees and pried them apart with ease, holding my legs spread wide, exposing me completely.
The sound of my jeans zipper being pulled down was obscenely loud. The tentacle wormed its way inside, the warm silicone pushing against my pubic bone, then lower. It found my pussy, already betrayingly wet from the nipple assault. The tip circled my clit, once, twice, with a precision that made my whole body jolt.
“N-no!” I choked out.
It pushed inside me in one smooth thrust. I gasped, my mouth falling open. It filled me, stretching me. It began to move, a slow, deep piston motion. Schlick. Schlick. Schlick. The wet sound of my own arousal mixed with the mechanical sound of the tentacle’s movement.
Each inward stroke rubbed against a spot deep inside that made stars burst behind my eyelids. Each withdrawal made me clench around nothing, aching for it to return. A broken, ragged moan was torn from me. I shook my head, denying the feeling, even as my hips gave a tiny, involuntary hitch against it.
VAGINAL INTERFACE OPTIMAL. INITIATING MULTI-POINT SYNCHRONIZATION.
Before I could process that, the tentacle at my mouth, which had been merely tracing my lips, pressed forward. I clamped my mouth shut, turning my head. A tendril from above wrapped in my hair, yanking my head back to center, holding it immobile.
The tip pressed against my sealed lips, insistently. When I didn’t open, it simply increased pressure, prying my jaws apart. I tasted clean, sterile silicone. It pushed into my mouth, over my tongue. I gagged, my throat convulsing.
It didn’t stop. It pushed deeper, a relentless, thick invasion, sliding past my uvula. My eyes watered, my breath came in desperate, whistling snorts through my nose. I was choking, drool leaking down my chin. It began to fuck my face with the same rhythmic, measured strokes as the one in my pussy.
Gllk. Gllk. Gllk.
Then I felt a new pressure at my asshole. Something smaller, pointed, was probing, lubricated with some cool, slick gel from a pore in its tip. It pressed, and breached me there too. A sharp cry was muffled around the tentacle in my throat. It was inside, a thinner intrusion but no less intense, joining the constant rhythm.
I was being fucked in three holes at once, a triple penetration that left me no room to breathe, to think, to escape...
The sensations overwhelmed my nervous system.
The sucking, needling torment on my nipples.
The deep, grinding fullness in my pussy.
The burning-stretching invasion in my ass.
The choking, throat-bulging assault in my mouth.
My body, traitorously, was hurtling toward an orgasm. The pleasure was a wire pulled taut across the violation, singing a terrible song. I writhed, not to escape, but to meet the strokes, my mind dissolving into a white static of overload.
The tentacle in my pussy began to vibrate, a low thrum that resonated through my entire pelvis. It was too much. Too freaking good!
The coil snapped.
A shuddering orgasm ripped through me, my back bowing off the floor, a strangled scream trapped around the tentacle fucking my throat. My pussy clenched and fluttered around the mechanical tentacle, juices gushing out around it.
The machine didn’t pause. It recorded the response.
ORGASMIC RESPONSE CATALOGUED. PROCEEDING TO DEEPER SYSTEM INTEGRATION.
The tentacle in my ass pushed deeper. The one in my mouth withdrew slightly, only to plunge back in with renewed thrusts, hitting the back of my throat. I was sobbing, tears and saliva and snot covering my face. Just as the aftershocks of the first orgasm were fading, a new sensation emerged.
An ultra thin tendril with a blunted, bulbous tip, had wormed its way into the messy, sensitive space between the tentacle in my pussy and my clit. It nudged against the closed opening of my urethra. A fresh wave of panic surged through me. I screamed a muffled “NO!” around the throat-fucker.
It pushed.
There was a piercing pain... a feeling of being opened where nothing should ever go. It was a slow intrusion, a stretching burn that made my eyes roll back. It slid inside my urethra, an inch, then two, a violation so intimate it felt like my soul was being pierced.
The tentacle began to pulse, a tiny, maddening rhythm independent of the others, sending shocks of agonizing, electrifying sensation directly into my core.
I came again, instantly.
This one wasn’t pleasure. It was a seizure, a systemic shock, my body convulsing against its restraints, my vision greying at the edges. The machine fucked me through it, all four points of penetration working in symphony.
Schlick-gllk-squish-pulse.
The sounds of my body being used filled the lab.
I lost track of time.
I was just a collection of screaming nerves, a doll being operated by a mindless machine.
After what felt like an eternity, it finally stopped.
The tentacles didn’t withdraw, but they ceased their movements, holding me impaled, stretched, and covered in my juices.
The main monitor flickered.
PHYSICAL CALIBRATION CYCLE ONE COMPLETE. BIOLOGICAL HOST ACCEPTED. STANDBY MODE INITIATED.
PART 2 --->










