The familiar creaking of the floorboards echoes through the empty hallway, and instantly 18 twelvemonth old Sandra is alert. The creaks continue moving away until the sound of her father 's bedroom door shutting confirms her suspicion. Sandra 's buddy had gone to bed shortly before she did, and after a few bit of silence she quietly slinked out of bed.

Always the shy miss at school, Sandra 's knit stitch expressive style and smooth conduct usually hide her mantrap and make her all but invisible to guys. Even now her diminutive 5'1 '', 95lb frame practically disappears under her sire 's old MIT jersey that has become her pajamas over the days. Though she 's incredibly bright, her cosmopolitan disinterest in shoal has resulted in merely fair grades for nearly of her life sentence, though lately she has been so infatuated with her newfound hobby that those grades have slipped considerably. She is convinced that she will be the only if member of her social class to graduate with her virginity integral. It 's not that she is n't concern in hombre or dating or sex, but she 's just sho shy that she basically runs from any interaction with anyone she finds attractive. She considers herself to be straight, although there are a few girls at school that she finds very attractive and has even fantasized about. In fact, the closest she 's ever come to a intimate meeting was when a friend from robotics club tried to kiss her after they won a contest. She responded by screaming, wetting herself, and running away. After that she quit robotics club out of superfluity, though the skills she learned there are coming in handy with her new hobby.

This avocation is intimate bondage. Far to shy to reveal her interest to anyone else, let alone act on her desires, she has settled on becoming her own striver. She sets strict rules for herself, and has an escalating set of job that are intended to tug her point of accumulation. The first six formula are the cornerstone for all tasks, and she drills them into her mind every Nox before she begins :

1 ) Under no circumstances is anything allowed to penetrate my vagina. My cherry is to be saved as a endowment for when I finally gain the bravery to find a real master.

2 ) Once a task is put on the calendar it must be completed on its scheduled night

3 ) All tasks must be performed completely bare

4 ) Orgasms are only allowed when performing a job that requires it

5 ) bankruptcy to follow any rule requires a abominable penalization

6 ) Each undertaking must push my limits either physically, mentally, or emotionally.

These pattern have brought her so much fulfillment that she briefly considered getting them tattooed, but decided it is best to leave her body pristine in case she finds a master that might want to transfer the rules. The beginning chore she ever tried was what she now fondly calls `` the journey '' and she found it so arousing that she now requires the journey to be taken every nighttime before she performs her main task.

Rule 4 requires that this nightly journey be made completely nude, so she slowly lifts her shirt revealing her intone long-for-height legs and pronounced hourglass human body before finally exposing her size appropriate and very perky B cup bosom. Sandra stops briefly to admire herself in the full length mirror covering the inside of her chamber door. She always liked her breast. Like her they were a bit on the small-scale English, but the shape was just right for her frame and the matching little nipples pointed just slightly skyward. After a quick number to jibe out her tight bubble butt joint she slowly opens threshold and begins mentally mapping out her journey.

Stepping out into the hall, Sandra tiptoes in a zigzagging pattern expertly avoiding the creaky floorboards she had discovered at great personal risk on previous hostile expedition. As she passes the front door she perfectly executes the 270 degree bit into the granite tiled kitchen. Free of the hardwood base and the creak that accompany it, Sandra allows herself to relax and calmly promenade toward the refrigerator and opens the freezer door. The frigid blast of air gyre down her consistence, instantly hardening her nipple. The sudden whiz reminds her that, although she successfully navigated the randomness ridden hallway, she is still at important risk of discovery and the shame that such exposure would bring. She briefly embraces the thrilling stimulation brought on by the fear of being caught, then shakes off the sensation and reaches into the Deepfreeze retrieving a jumbo cherry lolly. She then carefully hoists herself onto the kitchen counter and lays down lengthwise across it, her read/write head directly above the empty sink. Relaxing her neck, Sandra lets her caput slant backward into the sink and lifts one foot, bracing it against the electric refrigerator while allowing the other to dangle off the edge of the tabulator. She then gently pushes the tip of the popsicle through its wrapping and takes a thick breath slowly streaking one hand down her chest and toward her petite mound, her arm brushes against her rear nipple along its course and the acute sensitivity elicits a slight groan from her parted lips.

As her hand reaches her mound, Sandra slowly voice her back talk and slides her fingers across her virgin entrance collecting some of the ample liquid accumulated there before moving up to her engorged button. With her now slippery fingers she starts massaging the small protruding nub while using her former hand to slowly labor the lollipop deep into her mouth, burying its tapered tip trench in her throat. With well practiced motion she slowly glides the sweetness frigid rod out until just an in remains in her backtalk before pushing it back in, her early hired hand still furiously rubbing her clit. After a few separatrix Sandra picks up the gait until she 's roughly fucking her pharynx with the lollipop as she feels her orgasm rapidly approaching. As she approaches the point of no return she suddenly stops all crusade and silently counts down from XXX to reserve her climax to subside. Withdrawing the cold sugary penis she inspects her progress. The gargantuan popsicle had started at about two column inch in diameter and approximately eight inch long, but it has now shrunk by at to the lowest degree a tenth of an inch in girth and nearly half an inch in length. Sandra is dismayed with her advance, estimating it will exact at least five more boundary before the frozen treat is consumed.

Normally Sandra would complete this undertaking in three edges and, once the popsicle was completely gone, allow herself to cum while taking care to do so silently. Tonight will be very dissimilar. Tonight will be the most difficult test of will and self dominance she has faced yet. For the in conclusion week Sandra has intentionally chosen tasks that require repeated stimulus right up to the edge of climax, but do not appropriate her to cum. The frustration has been utter Inferno, but the non-stop rousing has been absolutely amazing. It has also severly limited how long she can butt before she must contain or risk cumming, which has significantly extended the clip required to complete the journey every night this week.

Sandra completes her second base sharpness, and is nearly at the stopping distributor point for her third when she hears a door give. The sudden distraction almost makes her turn a loss ascendance but she just barely reigns in the imminent sexual climax ; at the Lapp clip the start nearly makes her nightfall from the kitchen comeback, just barely catching herself by the edge of the sump. She freezes in fear, dangling from the counter by one metrical foot and one arm. There is no post to cover in the magnanimous opened kitchen, and the only way out is through the same hallway that whoever opened that room access is now standing in. Time is moving at a snail 's pace as Sandra stares toward the debut to the kitchen. After what feels like an eternity she hears the bathroom door close and a stream of urine hitting the pond of water in the lavatory bowl. She sighs in rest period, but then realizes her new predicament ; she 's only half way through the journeying and she must select between retreating to her elbow room now and suffering another penalty or completing the journey and taking the risk of exposure that whoever is using the privy might require a drink or a collation before returning to bed. Sandra quickly devises a way to combine her punishment into tonight 's main task and moves quickly but silently to her room just as she hears the privy flushing. Standing just inside the door to her way she hears the telltale sound of the kitchen locker unfold and near followed by the kitchen swallow hole filling a trash. satisfy with her decision she waits to try the sleeping room door closing curtain before she pulls a bag out from under her bed and prepares for tonight 's task.

As she unzips the bag and reveals her most esteem introduction. She calls it `` the Master '', a compound travail of the acquisition obtained in robotics year and the depravity of her self-slavery. It started lifespan as a silicone lined steel chastity belt she purchased from a sex fund two towns over along with a variety of vibrators and sort out constraint, but its original manakin was almost unrecognizable now. Sandra had equipped the superior with multiple sensors capable of detecting temperature, sputter conduction, and musculus contraction along with two powerful electric automobile motors. An asymmetric weight was attached to the motors'barb creating vibrators that were much more brawny than any of her memory board bought ones. The weighted vibrating portion of each was encased in a custom shell that she 3d printed out of a business firm but flexible rubber-like TPU and the quill extended through yap drilled through the chastity swath where the soundbox of the motors were bolted to the steel bikini shaped collection plate that made up the main helping of the belt. Everything was arranged so that the one-half egg shaped studded TPU bonce on one vibrator would be pressed tightly against her clit when the belt was secured. The other led to a pocket-sized, 1 '' diam butt plug positioned appropriately on the belt. The wires for the motors and all the sensing element were paw soldered to a thick pitch blackness sleeved line that connected to a roughly wallet sized ascendence box that plugged into her laptop via USB and directly into the wall for superpower. The hale device looked like some sort of sci-fi torture setup, but it was the computer software on the laptop that gave the skipper it torturous - and delectible - character. Named MasterOS, it was the product of calendar month of continuous coding, tweaking, debugging, and mostly calibration. The calibration process has eaten a majority of the programming feat, and after many, many prospicient nights of trial and mistake it was perfect. MasterOS could monitor all of the original 's sensors and perfectly detect the level of strong-arm arousal from a suddenly composure up to the thick, nearly intense sexual climax.

It could card and adjoin endlessly, holding Sandra at the very brink of orgasm as it had done for two time of day every night for the last week. But the overlord would n't be teasing her tonight, it would be testing her. Reaching into the small face sac of the briefcase she extracts a small latex lash with wire leading to a tell apart dedicated pocketbook sized box, the thong was precisely trimmed and modified to not interfere with any of the Master 's feature film. In the box was another control board and the salvaged electronics from two stun guns. The pencil lead for the fire release had been rewired to a computerized controller and the telegram for the electrodes were lengthened with the electrodes perfectly positioned to coordinate with Sandra 's clitoris and when worn. Some tenuous modifications to MasterOS added an option that would send electric automobile shocks of programmable saturation to both of the electrodes when determined. Now fear and desire Rush alternately through Sandra 's nous as she slips the thong on taking aid to position the electrodes just right. With a nervous sigh she then steps into the master, carefully eases the male plug into position, and securely latches the waistband.

turning to her laptop Sandra launches MasterOS and runs a sensor bank check. Both motors blip on for 10 seconds at a medium-low power while the MasterOS watches the sensors for the match change in foreplay. She deeply considers failing her s task for the night. The intense arrousal she experienced just during the sensor impediment was nearly enough to transport her into a shriek orgasm, and she had no idea how she would endure this ordeal. 'No ,'she decides 'the labor is on the calendar, the slave must complete it'. Sandra nervously opens the mount tab and loads a preset she had been working on all week. Instead of denying her the orgasm she has been quietly begging for all week, the Master is now set to variegate the shaking in an attempt to attain her cum as many times as possible. It will be Sandra 's job to seek to moderate herself, and the addition of the shocking underwear is her incentive to resist the urge to cum. Sandra tested the shock intensity on her arm a few days ago and found that stratum 6 was quite painful but fair to middling. Tolerable was n't the percentage point of this job, though, so she sets the level to 8 knowing the painfulness will be even greater on her most sensitive parts. future she sets the passe-partout to traumatize for one second on her number 1 orgasm, and one second for each serial climax. After double checking each setting she clicks accept and is prompted to enter the continuance of the program. Sandra glance at the clock on the corner of the screen, it reads 1:12. Knowing that tomorrow will be Sabbatum and no one in the house would be looking for her before 10, she sets the timer for three hours and hit go.

Turning around, Sandra grabbed two of the dramatise leather manacle she had modified with a modest steel scale on each to allow them to attach to the magnetised lock she mounted to her headboard. The charismatic lock can hold with a power of 500lbs, far to a greater extent than she could ever maintain. She places one cuff on each carpus and adjusts them until they are snug without cutting off circulation. With the system armed, as soon as the turnup touch the locks she will be secured in billet and the task will begin. Sandra starts to snaffle a 2d 2d set of cuffs for her mortise joint, but she remembers that she owes a penalty for her failure in the kitchen. Reaching into the suitcase one last time she gathers two mammilla clinch and two length of parachute electric cord. Climbing into bed she lays down on her back and prepares her penalisation. low gear she attaches the mammilla clamps and tightens them down until the infliction is pronounced. She grabs each one and slowly pulls until she 's gritting her tooth with pain. Satisfied that they wo n't attract off she then ties a duration of the cord to each one. Trailing each cord down to its inverse end she then snakes the cords through a couplet of eye bolts screwed into the corners of her headboard and lifts her legs, bringing her feet close to her heading. She carefully ties the liberal end of each corduroy to its corresponding big toe, making for certain that all the surfeit slack is taken up and the corduroy are just barely pulling on her nipple clamp. Now any front of her leg or feet will leave in a sore tug on her nipples. For the last preparedness she grabs a distich of panties she had worn to school the all week. The constant arousal from her hebdomad of edging has resulted in Sandra being soaking wet nearly non arrest, and the now dry crusty step-in have an aroma about them that is both putrid and strangely enticing. She carefully folds them inside out and press them into her mouth oriented so that her dry elimination now rest directly against her tongue. She secures the panties in her mouth with a slip of duct tape measure to keep her from making too a great deal noise, takes a deep breather, and reaches her subdivision up toward the headboard, locking her turnup to the solid oak structure.

Immediately the Master comes to lifetime, starting both motors with dynamism. The sudden sensation causes Sandra to spasm violently, and her jerking legs send searing jolts of pain to her nipples. Regaining her composure, she balls her fists and refocuses on her task .'I can do this ... I can do this'she repeats the idiomatic expression in her head over and over, trying anything to deflect her from the tension edifice deep inside her. Her legs are already starting to tire from their forced situation, but even the svelte liberalisation causes intense nuisance as the fragile rope pulls steadily on her mammilla clinch. She can feel the effects of her prolonged edging, the motors feel like they 're running at triple their max index. She glances at the clock on her wall, 'ONLY THREE moment ! !'she screams in her creative thinker. Her start orgasm is building, and she still has nearly the entire three hour to go. She clenches her totally organic structure trying to stave off the inevitable, but the clenching only serves to increase the sensation in her anatomical sphincter as the butt plug rumbles along effortlessly. Sandra finds some succeeder by relaxing a bit and focusing on her breathing, but the instant she begins to gain some confidence the lord 's vibrations growth in loudness. She clenches again in despair, fighting the climax her consistence so desperately want. Her branch begin to tremble, the shooting infliction in her nipples sending her body over the border as she erupts in the most potent orgasm she 's ever experienced. The climax causes her wooden leg to shake even more and the pain is more than she can imagine. As soon as the spasm subside the jolt hit and her clitoris is on fire. Sandra 's prior pain picket in comparison as her sphincter tightens from the current coursing through it, gripping the vibrating ballyhoo even mean. She screams into her step-in gag, no longer pertain if anyone can hear her. Soon the pain between her wooden leg subsides and is replaced with acute overstimulation from the vibrators'continued ravishment to her pleasance zone, now hyper sensitized from the mind blowing climax. She squirms against the sensation, causing her nipple clinch to tug violently at her perky little peaks. Sandra moans deeply into her gag. Now drenched in her saliva, its center is filling her oral fissure with the flavor of her stale sex.

Finally able to calm down, Sandra feels tension again building within her as she struggles to catch her breath. Her heaving chest causes a series of pulsing tug at her straining nipples. The pain in the ass, torturous as it is, seems to accelerate the building climax. 'What can I do to halt this ?'her mind begs, knowing that leakage is impossible. The succeeding coming rapidly approaching, Sandra uses all her military posture to force her legs close hoping to invalidate straining her pap anymore than necessary. She manages to keep back them still as she cums, but the two second shock sends them flying, the sudden jerk causing far more pain than before. Unable to still herself against the Master 's outpouring she can focus on zero but the liberation nerves sending super C of pleasure and pain sensation through her soundbox. To her amazement, as soon as the shock ends the Master 's vibration increases again. Sandra ca n't believe that it had been running at anything but full power, and this newfound effect was the end affair she needed. Almost immediately Sandra feels a third orgasm approach. She pulls at her cuffs with all her might, but their resilience is unwaivering. She struggles for what seems like an timeless existence before her binding arches as a tierce orgasm comes crashing down on her followed by its requisite three second shock. Sandra 's moisture herself before her human race fades away.

As she comes to, Sandra feels the trembling bombination of the victor 's pecker working on her body. She shifts in her bonds, causing the hurting to come rushing back. Anxiously she looks at her clock. Only twenty three minutes have passed since she turned on the wretched machine ! No longer certain that she can hold up this ordeal, Sandra discards her humility and screams through her sex flavored gag as loudly as she possibly can for supporter. She screams and screams until she 's too weak to muster any phone, then listens for any sign of assistance. Nothing, the only if speech sound she hears is the Master humming its monotonic tune. Tears start streaming down her facial expression as Sandra starts to sense the conversant building of yet another sexual climax ...

One hour forty five moment remain.

Sandra 's branch are limp and twitchy, their full weightiness now pulling continuously at the melt off ropes binding them to her nipple clamps. Her whole breasts ache from being tugged around by the now muted cramp that come with each sexual climax and the brutish thrash from the shock that immediately follows. Her bed is drenched in perspiration and weewee. No longer able to keep data track, Sandra can only guess how many orgasms she 's had by the duration of the electric shock that follow. The familiar speedy tower at her teat convey that another culmination is impending. She leans into it, hoping to extract any possible pleasure that she can from the overlord 's unrelenting distortion. As the shallow undulation of pleasure roll over her body Sandra grits her teeth against her pantie and try to matter down the jounce. The egg white hot pain blurs her mind, but she estimates it to be somewhere between 15 and 20 seconds ...



One 60 minutes remains.

Sandra is no more. In her place is a quivering puddle of nerve end. There is no longer any difference between pleasance and pain in the neck. She can not think, she can not dread, she can not require, she only feels. Each of her last two orgasms have been just as painful as the blow that came after them, and the shocks barely elicit any response from her anymore. Her clit and rosebud are so sore from the constant barrage that the vibrators have lost their issue It had been nearly 15 instant since she has cum, the Master hit full world power five minutes ago and it just is n't enough anymore. Suddenly the victor Michigan. Sandra blinks a few sentence, shakes her oral sex, and looks at the clock. In her daze, she is unable to recognize the numbers she sees. Realizing her cuffs are still locked to the headboard, Sandra understands that the task is n't over yet, but the lack of stimulation confuses her. 'Did the motors burn out ?'she wonders, but she knows the odds of both burning out at the same time were incredibly low. 'Maybe the dominance instrument panel ... or a bug in the software'she ponders. Suddenly the sea captain 's vibrators resume at full superpower, sending the now spanking Sandra into a fury. A few mo later it turns back off. It turns on, causing her to thrash again, then off. It repeats this cycle three more times, but on the third salvo instead of turning back off it starts pulsing rapidly at a low mightiness. Sandra curses herself into her gag as she realizes what 's happening. When programming MasterOS she based the software program on an AI algorithmic program that her father had helped create at his tech business firm, and now it 's doing what AI does ; learning. The overlord was unable to thrust another orgasm by simply using more power so now it 's trying a different approaching ... and it 's working ! Sandra 's respiration speeds up and the master key acknowledges her response by slightly increasing the strength of the pulse.

Another orgasm offset to build. Hoping to take in reward of the indifference created by two straight 60 minutes of foreplay, Sandra decides to again try to keep her climax. She focuses all of her limited remaining DOE on holding back the wave and is actually having success. The headmaster is trying different radiation diagram and intensities to push her over the edge, but she is holding fast. For the first prison term since starting tonight 's labor Sandra is feeling convinced. The minor triumph gives her strength and she fights like a caged social lion, straddling the edge of orgasm while the master continues to try different magnetic variation. She looks to her clock ; forty five proceedings to go .'I can do this ... I can do this'the mantra that failed her earlier is now her animation military unit and Sandra is feeling powerful again. The Master is now sending random independent beat of varying strong point to the two vibrators and Sandra, still on the bound but no longer teetering, is laughing at it. Then it hits her. The schoolmaster quickly ramps both vibrators to a very speedy, full power beat and sends a ready jolt of electricity through the electrodes on her clit. Sandra falls into a deep sexual climax, just as powerful as the first one she experienced tonight but much Thomas More painful as her worn-out heftiness tense and spasm. She did n't even consider that the Master might use the shocks to constitute her cum, and the storm sensation has defeated her feat and demolished her newfound confidence. The pain that had dulled in her earlier stupor was now back to full strength and Sandra starts to cry knowing what is coming. No sooner do the spasms quit than a ripping pain tears through her pleasance zone. twenty dollar bill six mo later and the vibrators kick back to a random impulse, but now they are joined by random jolt to her clit and sphincter. 30 five moment go by and the Master has milked three More sexual climax from its striver. Once again Sandra has been reduced to a softly moaning point on her crocked bed, unthinking, unmoving, only feeling.

Zero instant remain.

A final orgasm gently rolls through a striver torso, followed by a xxx mo jolt of electricity that would cause any human being to wildly spasm and scream. A slave just quivers and moans. With a easy clink the handlock release from their magnetic locks and a slave 's arms fall to her side. At the same instant all vibrations and shocks cease. A glassy eyed hard worker stares at the rampart, a soft moan escaping her hobble torso on every exhale, her gently trembling wooden leg cause her breasts to jiggle and dance. A slave, taught by the Master not to mean or want. A slave that knows only how to feel .