Calibration.

Carol was left stewing in her anger, never before had she suffered such humiliation, and when she got out of this thing, whoever was responsible would pay dearly. Starting with that cunt of a woman. Her anger fueled thoughts were interrupted when a soft sound came from beneath the saddle. As she looked down, she took in the details for the first time. It was quite wide in design, forcing her to spread her legs wide apart, almost to an uncomfortable angle. The curve was such that her crotch was resting entirely on it, and she saw that her most intimate parts were sitting firmly against a broad strip of rubber.

The sounds intensified, and the rubber began to move, pushing up to form around her pussy. For a minute, she squirmed to get out, but without her super-strength, escape was impossible, and she was **** to watch as her entire pussy was encased by rubber. After letting her wait for a moment to let her anxiety grow, the entire rubber thing began to vibrate. Wherever the rubber touched her body, the vibrations caused small jolts of pleasure to spark. She was by no means aroused, but she could not deny that the vibrations felt good against her sex, and her body reacted as normal.

The vibrations began to increase in strength, getting stronger and stronger with each passing moment. At one point, it stopped being pleasurable and became painful, before the vibrations weakened. Once back at its weakest, it picked up again, and this pattern repeated over and over. As the seconds turned into minutes, Carol felt the slow but inevitable climb towards orgasm. With each cycle, the saddle seemed to get closer to something, honing in on a specific thing. After maybe the tenth cycle and Carol was moaning softly through her gag, did the machine found what it was looking for. Carol had endured the steady stimulation for minutes now, and despite her best efforts to fight off the effects, knew that she was getting close to cumming. She felt the vibrations increase in strength once more, and as the power slowly increased to a certain point, she knew that she was done for. The vibrations hit a special speed and stayed there. Almost immediately, the slow and steady climb became an unstoppable rush for the finish. She felt the pleasure surge through her clit and the outside of her pussy, and within moments, her resistance broke. She threw her head back and gave a loud scream of pleasure through the gag. her back arched, and her large breasts jiggled enticingly with each shock and spasm she made. Her lower body remained motionless, held firmly in place by the bonds, but the subtle twitching of flesh told a trained eye how her pussy was convulsing in orgasmic pleasure.

The saddle fell silent, and Carol was breathing hard as the euphoria of release began to fade away.

"Okay, when I leave this place, I'm taking this thing with me."

More thoughts were impossible, as the saddle began to vibrate again. It did not wait for her sensitive clit to recover, nor did it cared that Carol was still out of breath. it immediately went for the previous strength, and in mere moments, Carol was already squirming against her restraints, trying desperately to fight the orgasm that was rushing towards her. A fight that was ultimately useless, as another orgasm exploded from her core. This one was no less powerful than the previous one, and it amazed Carol that she could cum this fast in succession. She moaned softly as she felt the saddle power up again, and braced herself for what was to come. Eight more times the machine **** her to cum. Eight orgasms in rapid succession were **** from her body, each as strong as the first, and each just as fast and unstoppable. She was slumped forward lightly as the tenth orgasm rolled through her, her body twitching lightly as the occasional aftershock rippled out from between her legs. Out of nowhere, the voice of the woman she had met earlier filled the room.

"Outside stimulation pattern has been successfully determined. Continuing with inside stimulation."

Carol had just enough time to be appropriately worried by that when she felt something push against her pussy. She briefly lost her composure and shook her head in denial as she felt her lower lips begin to part for this new object. The ten orgasms had left her pussy quite wet, and she was embarrassed with the ease that what she assumed was a dildo, was penetrating her.

The dildo pushed in deeper, and she felt a pleasurable tingle as her pussy was being filled. She felt the tip press against her cervix, and a brief burst of fear made her struggle helplessly. Luckily, the dildo withdrew just enough to not touch it anymore. Then it began to thrust in and out, going all the way back to leave her pussy empty, before plunging back into its deepest point. Like with the vibrations, its speed was going up and down, slowly zeroing in on the perfect speed. Once it had found the right speed, confirmed by the constant stream of unintelligible moans coming from Carol, it began to change size. The complex machinery began to expand or shrink its size along the full length. Delicate pressure sensors installed just beneath the surface registered how her pussy reacted to each size, and soon enough, it had settled on a girth that had Carol moan loudly with each perfect thrust.

Carol had experienced four more orgasms as the dildo had its way with her, and it was only her superhuman endurance that allowed her to remain conscious. Strangely, that part of her power was not blocked by the accursed collar. Any further thoughts were cleanly blown away when the entire length of the dildo began to hum with pleasant vibrations, causing a fresh wave of pleasure to roll through her. It was already shaped to be the perfect size for her, and the speed was just right for her, but now that the thing was also vibrating, something inside of her just snapped. Having already established the ideal vibrating speed and strength, the three-way attack on her pussy had her cumming in mere seconds. Her pussy convulsed around the pumping object, and with each thrust, vibrations were sent into every sensitive spot inside her folds. She had barely recovered from the orgasm when the next hit her with the same ****. A third came soon after, followed by a fourth. She was just about to have another orgasm when she felt the next one already starting to build. The fifth and sixth came so fast after each other, that the pleasure clashed against each other, drowning her mind in nothing but the purest sexual pleasure.

It was only when her mind was slowly starting to regain any form of stability that she realized the dildo had left her pussy, and she felt an aching emptiness in its place. She wondered if her anus was going to be treated this way as well, and she was proven correct when something was gently, but firmly, being pushed against her asshole. Carol began to struggle as much as her restraints allowed, which was pretty much nothing at all. She had never taken something in that hole, and she had no intention of changing that. Unfortunately, with her superpowers blocked, she was just an ordinary woman of exceptional beauty, so she remained immobile on the device, while the latest dildo began to gently push into her unused asshole.

She grunted slightly as the object began to part her opening, and yelped when a thick cold liquid was being injected into her rear. After a few moments, the dildo began to push again, and this time, there was no pain, and she felt almost no resistance. As it began to push itself deeper inside of her, Carol felt a shiver run down her spine, and it took her a moment to realise that it was arousal, not disgust. The dildo began to pick up speed, and a quiet moan escaped her lips from the sudden change. A bigger moan came when the dildo changed size, growing slightly bigger, filling her anus in ways no one had ever dared to do. When the vibrations kicked in, Carol had no resistance left to give, and she unconsciously tried to grind her hips against the dildo. The climb was slow and controlled. As if sensing her inexperience with this kind of stimulation, the machine carefully increased to let her get used to more and more intense anal fucking. It was a full hour later, not that she knew that when the machine stopped, leaving the dildo buried all the way inside of her.

She was breathing heavily, she had never been fucked so thoroughly in her life. Her hair was dishevelled from the frantic way her head shook during the many orgasms **** from her helpless body, and a thin layer of sweat had her flawless skin shine in the cold light of the room. She hung slightly forward, held only in place by the chain connecting her armbinder to the ceiling. Her head was slumped, and a single drop of sweat rolled from her forehead, down her cheek, until it fell from her face and landed on one of her heaving breasts. Never before had she been fucked like this, and the only thing that kept her awake and full of energy was her superhuman endurance that had somehow not been blocked by the collar. As her heavy breathing slowly stabilized, she wondered to herself what these sadistic perverts wanted with her, and she vowed to ask them when she escaped. She also reaffirmed to herself that she would take this machine with her and give it a nice place in her home, no way was she ever going to give up on something this good. When she was fully recovered, and began to wonder if the machine had broken, she heard the whine of the machine come back alive, as well as the rumble of the rubber strip pressed against the outside of her pussy and clit. Her eyes widened in shock as she felt the first dildo began to pierce her pussy, and the second one shrunk slightly to give room for both. The two toys began to thrust, each in their own rhythm, and the rubber strip between her legs increased in strength to match the dildos. Two minutes was all it took when yet another orgasm ripped through her body, and a loud piercing wail of pleasure came from around the gag. Droplets of clear liquid began to stream down the saddle, and some of it bounced frantically on the vibrating rubber, creating a fine spray of pussy juice.

Another hour later, and the machine fell silent after a long drawn out grunt from Carol. Her juices had pooled around the saddle on the base the device was mounted on, and her thighs and parts of her stomach were wet from the regular spray of liquid. Carol's eyes slowly rolled back as the non-stop onslaught of her sex had finally ended. The machine had been constantly stimulating her, alternating the toys it used at random intervals. Sometimes, it used just one thing, other times it combined the one in her ass with her pussy. or her pussy and clit, or her pussy and anus would get the fucking of a lifetime. But no matter what, it always resulted in mind-blowingly strong orgasms. She never knew she could squirt, but the machine had shown her that not only could she, but it could also make her do so almost on command. She was gradually coming down from her sexual high when the voice from that woman rang through the room. She had forgotten about that bitch.

"Calibration completed, we now have mapped out optimal stimulation and pleasure routines. Well done on making it through in one go. Lesser heroines we captured would often faint during the last part, they often find the pleasure to be too much to handle. But not you, it seems. This is good, this means that we can continue without delay."

Carol wanted to scream obscenities at the woman, but the gag made that impossible, and nothing more than muffled sounds came from her mouth. Out of nowhere, the myriad of screens lining the walls around her, sprang back to life, having gone out at some point during her fuck fest. On the largest screen, centred right in front of her, a simple line of words was being shown.

"Step one completed, beginning step two in. 5...4...3...2...1..."