The associate creaking of the floor board echoes through the vacate hallway, and instantly 18 year old Sandra is alarum. The creak continue moving away until the sound of her Father of the Church 's bedroom door shutting confirms her mistrust. Sandra 's brother had gone to bed shortly before she did, and after a few mo of silence she quietly slinked out of bed.

Always the shy girl at schooltime, Sandra 's knit stitch trend and quiet demeanor usually hide her beauty and progress to her all but invisible to guys. Even now her midget 5'1 '', 95lb underframe practically disappears under her don 's old MIT T-shirt that has become her pajama over the years. Though she 's incredibly bright, her full general disinterest in school has resulted in merely modal level for most of her spirit, though lately she has been so infatuate with her newfound hobby that those grade have slipped considerably. She is convinced that she will be the only appendage of her category to calibrate with her virginity integral. It 's not that she is n't interested in guys or dating or sex, but she 's just sho shy that she basically runs from any fundamental interaction with anyone she finds attractive. She considers herself to be straight, although there are a few lady friend at schooling that she finds very attractive and has even fantasized about. In fact, the faithful she 's ever come to a sexual encounter was when a friend from robotics club tried to osculate her after they won a contest. She responded by screaming, wetting herself, and running away. After that she quit robotics club out of embarrassment, though the accomplishment she learned there are coming in handy with her new hobby.

This hobby is sexual bondage. Far to shy to expose her sake 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 bear on her limits. The kickoff six ruler are the foundation for all chore, and she drills them into her mind every nighttime before she begins :

1 ) Under no consideration is anything allowed to get through my vagina. My cherry is to be saved as a talent for when I finally gain the courage to find a real master.

2 ) Once a chore is put on the calendar it must be completed on its scheduled Nox

3 ) All tasks must be performed completely nude

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

5 ) Failure to succeed any ruler requires a terrible punishment

6 ) Each project must force my bound either physically, mentally, or emotionally.

These principle 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 require to change the rules. The first task 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 night before she performs her main task.

ruler 4 requires that this nightly journey be made completely nude, so she slowly lifts her shirt revealing her toned long-for-height legs and enunciate hourglass fig before finally exposing her size of it appropriate and very buoyant B cup tit. Sandra stops briefly to admire herself in the wax length mirror covering the inside of her bedroom door. She always liked her breasts. Like her they were a bit on the diminished side, but the shape was just right for her physique and the matching small mammilla pointed just slightly skyward. After a quick turn to check out her plastered bubble butt she slowly opens door and begins mentally mapping out her journey.

Stepping out into the hallway, Sandra tiptoes in a zigzagging approach pattern expertly avoiding the creaky floorboard she had discovered at great personal risk on former excursion. As she passes the front end doorway she perfectly executes the 270 degree turn into the granite tiled kitchen. Free of the hardwood floors and the creaking that accompany it, Sandra allows herself to slacken and calmly amble toward the icebox and opens the freezer door. The frigid blast of air cast down her consistency, instantly hardening her nipples. The sudden sensation reminds her that, although she successfully navigated the dissonance ridden hallway, she is still at substantial peril of uncovering and the shame that such exposure would bring. She briefly embraces the thrilling foreplay brought on by the fear of being caught, then shakes off the sensation and reaches into the freezer retrieving a jumbo cherry popsicle. She then carefully hoists herself onto the kitchen counter and lays down lengthwise across it, her head directly above the hollow sink. Relaxing her neck, Sandra lets her nous lean backward into the sink and lifts one groundwork, bracing it against the electric refrigerator while allowing the other to dangle off the sharpness of the retort. She then gently pushes the tip of the lollipop through its neglige and takes a deep breathing spell slowly streaking one deal down her chest and toward her petite mound, her arm encounter against her rear mammilla along its grade and the acute sensitivity elicits a slight moan from her parted lips.

As her hand reaches her mound, Sandra slowly parts her lips and slides her fingers across her Virgo entrance collecting some of the rich liquid accumulated there before moving up to her engorged clit. With her now slippery fingers she starts massaging the small protruding nub while using her other hand to slowly push the lollipop deep into her oral fissure, burying its tapered tip trench in her throat. With well practiced question she slowly glides the mellisonant frosty rod out until just an inch remains in her mouth before pushing it back in, her other manus still furiously rubbing her button. After a few diagonal Sandra picks up the footstep until she 's roughly fucking her throat with the popsicle as she feels her sexual climax rapidly approaching. As she approaches the point of no return she suddenly stops all cause and silently counts down from 30 to admit her orgasm to subside. Withdrawing the cold sugary phallus she inspects her progress. The gargantuan ice lolly had started at about two in in diameter and approximately eight inches long, but it has now shrunk by at least a tenth part of an in in girth and nearly half an column inch in length. Sandra is dismayed with her progress, estimating it will take at least five to a greater extent boundary before the freeze out delicacy is consumed.

Normally Sandra would nail this task in three edges and, once the ice lolly was completely gone, allow herself to cum while taking care to do so silently. Tonight will be very dissimilar. Tonight will be the most unmanageable test of will and self control she has faced yet. For the finis calendar week Sandra has intentionally chosen tasks that require repeated arousal right up to the edge of orgasm, but do not allow her to cum. The frustration has been utter hell, but the non-stop arousal has been absolutely amazing. It has also severly limited how farseeing she can edge before she must quit or lay on the line cumming, which has significantly extended the time required to fill in the journey every nighttime this week.

Sandra completes her instant edge, and is nearly at the stopping point for her thirdly when she hears a door capable. The sudden beguilement almost makes her lose restraint but she just barely reigns in the impending coming ; at the same time the startle nearly makes her fall from the kitchen heel counter, just barely catching herself by the edge of the sink. She freezes in fear, dangling from the counter by one foot and one arm. There is no station to hide in the large open kitchen, and the lonesome way out is through the Same hall that whoever opened that door is now standing in. Time is moving at a snail 's pace as Sandra stares toward the entry to the kitchen. After what feels like an timeless existence she hears the privy door close and a stream of weewee hitting the puddle of piddle in the toilet bowl. She sighs in relief, but then realizes her new predicament ; she 's only half way through the journey and she must pick out between retreating to her room now and suffering another punishment or completing the journey and taking the risk that whoever is using the privy might want a drunkenness or a bite before returning to bed. Sandra quickly devises a way to coalesce her punishment into tonight 's main task and moves quickly but silently to her room just as she hears the toilette flushing. Standing just inside the doorway to her room she hears the telltale speech sound of the kitchen cabinet clear and fill up followed by the kitchen sump filling a glass. Satisfied with her decision she waits to discover the bedroom door close before she pulls a suitcase out from under her bed and prepares for tonight 's task.

As she unzips the suitcase and reveals her most pry creation. She calls it `` the Master '', a combined effort of the attainment obtained in robotics course and the depravation of her self-slavery. It started life as a silicone lined brand chastity belt she purchased from a sex store two towns over along with a form of vibrators and assorted restraints, but its original configuration was almost unrecognizable now. Sandra had equipped the Master with multiple sensor capable of detecting temperature, pelt conductivity, and muscle compression along with two brawny galvanizing motors. An asymmetric system of weights was attached to the motors'shafts creating vibrators that were much more mightily than any of her store bought 1. The weighted vibrating portion of each was encased in a custom shell that she 3d printed out of a firm but flexible rubber-like TPU and the tool extended through muddle drilled through the virtue knock where the body of the motors were bolted to the steel bikini shaped plate that made up the main portion of the belt. Everything was arranged so that the half egg shaped studded TPU dome on one vibrator would be pressed tightly against her clit when the belt was secured. The other led to a small, 1 '' diameter butt hype positioned appropriately on the belt. The wires for the motors and all the sensing element were hired man soldered to a thick black sleeved cable that connected to a roughly wallet sized control box that plugged into her laptop via USB and directly into the wall for power. The whole device looked like some sort of sci-fi torturing apparatus, but it was the software on the laptop that gave the captain it torturesome - and delectible - character. Named MasterOS, it was the product of calendar month of continuous coding, tweaking, debugging, and mostly calibration. The standardisation outgrowth has eaten a majority of the computer programming campaign, and after many, many long dark of trial and fault it was consummate. MasterOS could supervise all of the Master 's sensors and perfectly detect the stage of forcible rousing from a bushed calm air up to the deepest, about acute orgasm.

It could tease and border endlessly, holding Sandra at the very brink of orgasm as it had done for two minute every night for the last week. But the Master would n't be teasing her tonight, it would be testing her. Reaching into the small side sac of the briefcase she extracts a pocket-sized latex thong with wire leading to a disjoined dedicated wallet sized box, the thong was precisely trimmed and modified to not interfere with any of the Master 's features. In the box was another ascendency board and the salve electronics from two stun artillery. The leads for the firing push button had been rewired to a computerized controller and the wires for the electrodes were lengthened with the electrodes perfectly positioned to align with Sandra 's clitoris and when worn. Some slight alteration to MasterOS added an option that would send electric automobile shock absorber of programmable volume to both of the electrodes when determined. Now fear and desire bang alternately through Sandra 's nous as she slips the thong on taking care to billet the electrodes just right. With a spooky sigh she then steps into the schoolmaster, carefully eases the jade into emplacement, and securely latches the waistband.

Turning to her laptop Sandra launches MasterOS and runs a sensor stop. Both motors blip on for 10 seconds at a medium-low king while the MasterOS watches the sensors for the comparable change in arousal. She deeply considers failing her minute task for the night. The acute arrousal she experienced just during the sensor check was nearly enough to station her into a shrieking sexual climax, and she had no estimate how she would live this ordeal. 'No ,'she decides 'the task is on the calendar, the hard worker must complete it'. Sandra nervously opens the settings tab and loads a preset she had been working on all week. Instead of denying her the orgasms she has been quietly begging for all hebdomad, the Master is now set to vary the vibrations in an attack to make her cum as many clock time as possible. It will be Sandra 's job to attempt to control herself, and the accession of the shocking underclothing is her incentive to resist the urge to cum. Sandra tested the shock saturation on her arm a few days ago and found that level 6 was quite awful but adequate. Tolerable was n't the percentage point of this task, though, so she sets the level to 8 knowing the pain will be even greater on her most sensitive parts. Next she sets the Master to take aback for one minute on her first off orgasm, and one second gear for each sequent orgasm. After double checking each setting she clicks accept and is prompted to inscribe the continuance of the program. Sandra glances at the clock on the corner of the silver screen, it reads 1:12. Knowing that tomorrow will be Saturday and no one in the house would be looking for her before 10, she sets the timekeeper for three hours and hit go.

Turning around, Sandra grabbed two of the padded leather cuffs she had modified with a small sword plate on each to allow them to attach to the magnetic ringlet she mounted to her headboard. The magnetized whorl can hold with a force of 500lbs, far more than she could ever exert. She places one cuff on each wrist and adjusts them until they are cozy without cutting off circulation. With the organisation armed, as soon as the handcuff touch the locks she will be secured in position and the task will begin. Sandra starts to grab a 2nd second set of cuff for her ankles, but she remembers that she owes a punishment for her unsuccessful person in the kitchen. Reaching into the suitcase one last time she gathers two mammilla clamps and two duration of chute cord. Climbing into bed she lays down on her back and prepares her punishment. low she attaches the nipple clamp and tightens them down until the pain is pronounced. She grabs each one and slowly pulls until she 's gritting her tooth with pain. Satisfied that they wo n't pull out off she then ties a duration of the cord to each one. Trailing each cord down to its opposite end she then snakes the corduroys through a distich of eye bolts screwed into the corners of her headboard and lifts her peg, bringing her feet close to her head. She carefully ties the loose end of each electric cord to its corresponding big toe, making for sure that all the excess falling off is taken up and the corduroys are just barely pulling on her teat clamps. Now any apparent motion of her legs or feet will ensue in a sore tug on her nipples. For the final preparation she grabs a pair of scanty she had worn to school the whole calendar week. The constant rousing from her week of edging has resulted in Sandra being soaking wet nearly non terminate, and the now dry crusty panties have an odor about them that is both putrid and strangely enticing. She carefully folds them inside out and pushes them into her backtalk oriented so that her dry excretory product now rest directly against her lingua. She secures the scanty in her backtalk with a strip of epithelial duct tape to keep her from making too much noise, takes a mysterious breath, and reaches her arms up toward the headboard, locking her manacle to the satisfying oak structure.

Immediately the sea captain comes to liveliness, starting both motors with vigor. The sudden sensation causes Sandra to spasm violently, and her jerk peg 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 phrase in her mind over and over, trying anything to distract her from the tension building deep inside her. Her legs are already starting to fag from their forced perspective, but even the slightest relaxation causes intense annoyance as the thin rope pulls steadily on her nipple clinch. She can find the effects of her prolonged edging, the motors feel like they 're running at triple their max power. She glances at the clock on her wall, 'ONLY ternary MINUTES ! !'she screams in her mind. Her first-class honours degree orgasm is building, and she still has nearly the total three minute to go. She clenches her whole body trying to stave off the inevitable, but the clenching only serves to increase the sense experience in her sphincter as the prat plug rumbles along effortlessly. Sandra finds some success by relaxing a bit and focusing on her breathing, but the wink she begins to gain some trust the schoolmaster 's shakiness step-up in intensity. She clenches again in desperation, fighting the climax her dead body so desperately involve. Her legs Menachem Begin to tremble, the shooting pains in her nipples sending her consistency over the edge as she erupts in the most powerful orgasm she 's ever experienced. The orgasm causes her legs to stimulate even more and the pain is Sir Thomas More than she can imagine. As soon as the cramp subside the shock hits and her button is on fire. Sandra 's prior painfulness pales in comparison as her sphincter tightens from the current coursing through it, gripping the vibrating hack even plastered. She screams into her panty gag, no longer refer if anyone can hear her. Soon the pain between her legs subsides and is replaced with intense overstimulation from the vibrators'continued assault to her delight zones, now hyper sensitized from the mind blowing orgasm. She squirms against the sensation, causing her teat clamps to tug violently at her perky little acme. Sandra moans deeply into her gag. Now drenched in her saliva, its essence is filling her backtalk with the spirit of her stale sex.

Finally able to calm down, Sandra feels tension again edifice within her as she struggles to catch her breath. Her heaving chest causes a series of pulsing jerk at her straining nipples. The painfulness, agonising as it is, seems to accelerate the edifice climax. 'What can I do to stop this ?'her thinker begs, knowing that relief valve is inconceivable. The next coming rapidly approaching, Sandra uses all her potency to pull her legs close hoping to invalidate straining her nipples anymore than necessary. She manages to withstand them still as she cums, but the two second electric shock sends them flying, the sudden jerk causing far more hurting than before. ineffective to still herself against the Master 's bombardments she can focus on nada but the firing heart sending jets of pleasure and painful sensation through her body. 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 wide power, and this newfound effect was the terminal matter she needed. Almost immediately Sandra feels a third orgasm approaching. She pulls at her handlock with all her might, but their resilience is unwaivering. She struggles for what seems like an timeless existence before her spinal column arches as a third sexual climax comes crashing down on her followed by its requisite three 2d seismic disturbance. Sandra 's wets herself before her creation fades away.

As she comes to, Sandra feels the trembling buzz of the Master 's tools working on her torso. She shifts in her adherence, causing the pain to occur rushing back. Anxiously she looks at her clock. Only twenty three minutes have passed since she turned on the wretched auto ! No longer certain that she can hold up this ordeal, Sandra discards her humility and screams through her sex flavored gag as cheap as she possibly can for avail. She screams and screams until she 's too rickety to summon any sound, then listens for any signboard of help. Nothing, the only sound she hears is the Master humming its monotonous tune. Tears start streaming down her face as Sandra starts to experience the familiar spirit building of yet another orgasm ...

One hour forty five minutes remain.

Sandra 's legs are limp and twitchy, their full weightiness now pulling continuously at the thin R-2 binding them to her mammilla clamps. Her whole white meat ache from being tugged around by the now muted muscle spasm that accompany each orgasm and the cruel thrash from the shock that immediately follows. Her bed is drenched in sweat and urine. No longer able-bodied to restrain caterpillar tread, Sandra can only estimate how many orgasms she 's had by the length of the shocks that follow. The familiar rapid tower at her pap convey that another climax is impending. She leans into it, hoping to extract any potential pleasance that she can from the superior 's brutal torture. As the shoal waves of pleasance roll over her body Sandra grits her teeth against her panties and try to calculate down the blow. The snowy hot pain blurs her mind, but she estimates it to be somewhere between fifteen and XX seconds ...



One hour remains.

Sandra is no more. In her seat is a quivering puddle of heart finish. There is no longer any difference between pleasance and pain. She can not recall, she can not fear, she can not want, she only smell. Each of her death two climax have been just as painful as the daze that came after them, and the shocks barely elicit any response from her anymore. Her clitoris and rosebud are so sore from the constant barrage that the vibrators have lost their outcome It had been nearly fifteen minutes since she has cum, the passkey hit full power five moment ago and it just is n't enough anymore. Suddenly the Master arrest. Sandra blinks a few times, shakes her headland, and looks at the clock. In her daze, she is unable to discern the issue she sees. Realizing her cuff are still locked to the headboard, Sandra understands that the chore is n't over yet, but the lack of stimulation confuses her. 'Did the motors burn out ?'she wonders, but she knows the betting odds of both burning out at the same time were incredibly low. 'Maybe the control display board ... or a bug in the computer software'she ponders. Suddenly the Master 's vibrators resume at full power, sending the now alert Sandra into a delirium. A few minute later it turns back off. It turns on, causing her to slash again, then off. It repeats this hertz three to a greater extent fourth dimension, but on the third burst instead of turning back off it starts pulsing rapidly at a low power. Sandra curses herself into her gag as she realizes what 's happening. When programming MasterOS she based the software on an AI algorithm that her father had helped create at his tech firm, and now it 's doing what AI does ; learning. The Master was unable to force another orgasm by simply using more great power so now it 's trying a different approach ... and it 's working ! Sandra 's respiration speeds up and the master copy acknowledges her response by slightly increasing the strength of the pulses.

Another coming startle to build. Hoping to take vantage of the numbness created by two uncoiled hours of stimulation, Sandra decides to again try to prevent her sexual climax. She focuses all of her limit remaining get-up-and-go on holding back the wave and is actually having succeeder. The Master is trying different patterns and intensities to push her over the edge, but she is holding fast. For the first time since starting tonight 's chore Sandra is feeling confident. The minor triumph gives her intensity and she fights like a caged lion, straddling the edge of climax while the Master continues to attempt different magnetic variation. She looks to her clock ; forty five minutes to go .'I can do this ... I can do this'the mantra that failed her earlier is now her life sentence force and Sandra is feeling muscular again. The Master is now sending random independent impulse of varying strong point to the two vibrators and Sandra, still on the sharpness but no longer teetering, is laughing at it. Then it hits her. The Master quickly ramps both vibrators to a very rapid, wax mightiness pulse and sends a straightaway jolt of electrical energy through the electrodes on her button. Sandra falls into a deeply coming, just as powerful as the first one she experienced tonight but much more painful as her release muscles tense and spasm. She did n't even moot that the maestro might use the shocks to make her cum, and the surprising genius has defeated her effort and demolished her newfound confidence. The pain that had dulled in her earlier daze was now back to full durability and Sandra starts to cry knowing what is coming. No sooner do the cramp quit than a ripping pain bust through her pleasure zones. twenty dollar bill six seconds later and the vibrators kick back to a random pulse, but now they are joined by random electric shock to her clitoris and sphincter. Thirty five mo go by and the lord has milked three Thomas More sexual climax from its hard worker. Once again Sandra has been reduced to a softly moaning situation on her soaked bed, unthinking, unmoving, only feeling.

nought minutes remain.

A final examination orgasm gently rolls through a slaves organic structure, followed by a 30 second jolt of electrical energy that would cause any human to wildly spasm and scream. A hard worker just vibration and moans. With a soft dog the handlock release from their magnetic locks and a slave 's implements of war dusk to her side. At the Lapp instant all shakiness and jounce cease. A glassy eyed striver stares at the wall, a soft groan escaping her limp dead body on every exhale, her gently trembling legs cause her breasts to joggle and dance. A striver, taught by the Master not to suppose or require. A hard worker that knows only how to palpate .