Author's Note: I'm quite new to writing erotic stories, and this trilogy is my first attempt at writing a multi-part story. I'm keen to receive feedback from people who read my stories. Constructive criticism is welcomed. Please let me know what you think for each part of the story.

Part One

Sophie put the meal that she had just prepared on a tray and carried it through into the lounge so that she could sit and watch television while she ate. She started to watch the news, but there didn't seem to be any new news. The news bulletin on the TV was talking about the same things that it had covered yesterday. Soon she changed channel and watched the latest episode of a soap.

Sophie was now single again having split up with her boyfriend Dan about three months ago. She'd thought their relationship was pretty good and she'd certainly enjoyed sex with Dan, but evidently he enjoyed sex too much. One day he had suddenly announced that she needed to go urgently to the sexual health clinic because he had contracted an STI, and might have passed it on to her. Of course that was tantamount to an admission that he had been playing around. Sophie was shocked and upset by his announcement. She decided that she couldn't trust him anymore, and told him that their relationship was at an end.

At 27, Sophie was still in good shape and very attractive. She made a point of looking after herself, eating healthily and taking regular exercise. She felt sure that soon enough she would be able to start a new relationship with another man, but in the meantime she was feeling sexually deprived. Although she was very angry with Dan for what he had done, there was no doubt that sex with him had been really great. They had had sex frequently and Sophie always enjoyed it. Now suddenly she wasn't getting any at all and was finding it quite an adjustment.

Sophie made good use of her vibrator, but a few weeks later it finally packed up. She'd had it for a year or two and had worn it out, especially with the amount of use it was getting now that Dan wasn't around. She went online and ordered a couple of new vibrators, including one which was large and powerful. "That should do the trick" she thought as she completed the order. She also started viewing online pornography and came across a website which specialised in showing women being fucked by machines.

Sophie was fascinated as she watched the updates on the website. It seemed that all the women featured on the site were actually porn stars. Each update showed a guest porn star being fucked by a succession of different machines. It was obvious that the sensations generated by having a machine powered dildo pounding their pussy at ever higher speeds were pretty intense. Some women could only tolerate a few strokes of the machine before screaming for it to stop.

As Sophie watched she couldn't help feeling that she would really love to have the opportunity to try some of these machines. But of course that wasn't going to happen. She wasn't a porn star, and in any case the company that ran the website and also had studios where they filmed the porn, was based in America. However that realisation didn't stop her from imagining how it would be to have a go at using some of the machines herself. She regularly visited the website to watch the new updates.

Sophie decided more out of curiosity than anything else to see what fucking machines were available to be ordered over the Internet. Using a search engine she put in the search term "fucking machines" and up came a whole list of results. Browsing the results Sophie was surprised at how many different companies were offering fucking machines and at the variety of machines that were available. Her search did confirm something which she had already suspected, which was that these machines were very expensive and more than she could afford.

Then she opened up one of the references on the results list and she saw something which immediately captured her attention. The company in question specialised in manufacturing fucking machines and keen to diversify and develop their business they had embarked on a new venture. This new venture, not yet launched was going to be called 'robo-fuck pods'. The pods which were going to be introduced in major cities would contain sophisticated, high-tech and high performance fucking machines.

Customers would be able to book a session online, and would then be directed to one of the company's pods. On entering the pod they would be able to lock themselves in and then get well and truly fucked by the robot machine it contained. Different pods would have different capabilities, and so the customer would be directed to whichever pod nearby could deliver the sort of experience they were seeking. For example one pod might be able to give the customer a sensual whole body massage followed by a gentle but erotic fucking, whilst another might be set up to deliver a full on BDSM experience.

There would be a fee of course. The target market was people who couldn't afford or didn't want to own their very own machine, but who at the same time could afford to occasionally indulge themselves in the robo-fuck experience. The company was at the stage where it wanted to pilot test the pods and the machines before the formal launch. It was inviting people to apply for the opportunity to take part in test sessions. Successful applicants would not be charged a fee, but would be required to sign a waiver absolving the company of all liability, if something should go wrong and a machine caused injury. It was emphasised that the risk of injury was very low, but that as this was a test program there was always a slight risk of a malfunction causing injury.

Sophie read and re-read the information on the web page. As she did so she felt a growing sense of excitement. Wow! What an opportunity. She couldn't believe it this was just what she wanted. She saw the reference to risk of injury, but she rationalised that the company wouldn't embark on tests if they didn't think the product was ready to be tried out on real people. "Sometimes you have to take a risk" she told herself. She set about filling out the application form on the company's website. Some of the questions on the form regarding the applicant's previous sexual experience were a bit intrusive she thought, but despite that she completed the form and hit the 'submit' button.

Over the next few days Sophie found it really difficult to concentrate at work. Her mind kept wandering to the subject of the robo-fuck pods and what sort of experience she was going to have if she was accepted for the test program. She was employed in the administration office of a local college. Actually, a lot of the work was quite boring but least it was a secure job and pay wasn't too bad. Once or twice, she made small mistakes because of her inattentiveness, but luckily she managed to correct the mistakes before any real damage was done.

Then, a few days after submitting her application Sophie found a message in her e-mail inbox advising that she'd been accepted for the test program. "Whoopee"! Shouted Sophie and did a little celebratory dance. Now she really was getting excited. The e-mail contained quite a lot of detailed information so she sat down at her PC to read and digest it. Firstly, she would be required to fill in an additional form. The form focused on questions about her body size and weight etc. There were a whole series of measurements to be entered, and a diagram of the female body on the form showed how and where each measurement should be taken. The information was said to be essential and she could not proceed to test sessions without providing it in full.

Sophie completed the form and having checked some of the measurements, hit the submit button. Then she began to read and digest the rest of the information in the e-mail. She had been sent a password valid for six sessions and also there was a link to take her to the company's website. When she wanted to book, she should use the link to take her to the booking facility on the website. This was the same facility that customers would use when the product was formally launched. But she wouldn't be charged a fee but instead she would need to enter the password which identified her as one of the companies's chosen product testers.

Once in the system, she would be asked to make choices and confirm a whole series of parameters for her session in the pod. The first would be a general question about what sort of experience she wanted, the second question would ask her preferred sexual position and so on. Sophie read the information intently and realised that she was impatient to have a go. Before printing off a copy of the e-mail, she read a warning notice it contained that was set out in bold print. The notice was as follows

Important Please Read

Some of our machines are capable of delivering a powerfully intense experience. User discretion is advised. We recommend that those first using our machines select a mild program to start with and then progress to more intense programs if desired. The company accepts no responsibility if the user has an experience which is more intense than they wanted.

Sophie opened the browser on her PC, pasted in the link which he had copied from the e-mail and went to the booking facility on the website. She was asked to enter her password and the website indicated that there were just two machines within reasonable distance that were available for use during the next few days. The first of the machines currently available could offer a relaxing sensual and erotic experience including a massage, whilst the second was configured for a full spectrum BDSM experience.

Sophie decided to try the machine offering the relaxing and erotic experience. Next she was asked her preferred position for sex. She decided that if she was going to have a massage as part of the session, then the missionary position might be most suitable. She was asked to indicate what intensity level she wanted to choose. She chose medium. The website indicated that she could check, alter or confirm her choices on arrival at the pod.

The next day Sophie made her way by tram to the location of the pod. There was a tram stop near her house and the modern urban tram system provided a fast and convenient service. The pod was tucked away in an odd corner of a shopping mall. From the outside it looked rather like one of those public toilets but somewhat bigger. The pod was unmarked, and other users of the mall seemed not to notice it. Feeling excited and a little nervous Sophie punched in her pass code and the door opened to admit her. Having entered, Sophie pushed a button which closed and locked the door. "Door closed and locked, you are securely locked in the pod. No one else can enter whilst you are using it" said a pre-recorded voice.

Sophie looked around the pod. At one end through a doorway she could see a small toilet. Also there was a coat peg and below that, spaces where she could stow her clothes, shoes and any items that she might have with her. Set in one wall was the fucking machine.

Full of curiosity, she opened the large hatch and peered into the machine. It was a bit like peering into a cylindrical shaped tunnel. On the floor of the tunnel was what looked like a couch. She noticed that the surface of the couch was anatomically shaped so that when the user lay on it the contours would fit perfectly with their body. On the roof of the tunnel was another sort of couch, also anatomically shaped. It seemed that when the machine was active, her body would be sandwiched between the two couches, one below her and one on top which together would totally envelop her body fitting perfectly. Sophie could feel her excitement building as she anticipated the experience that she was about to have.

Sophie undressed completely and then used the toilet before going over to the control console set in the wall near to the hatchway for the machine. The control console comprised a large screen. It was a touch-screen so that there was no keyboard. Instructions could be keyed in via the screen. She entered her password. "Users identity confirmed" said the computer. The screen then flashed up the same warning that she had seen on the e-mail. After a few moments it disappeared. She was asked to review and confirm the choices that she had already indicated when booking. Each choice included an intensity setting. Sophie decided that she would go for medium rather than starting off with light. As she confirmed its choice and setting the computer spoke to confirm.

"Full body massage, intensity medium, confirmed".

"tit tease, intensity medium, confirmed".

"pussy play, intensity medium, confirmed".

"pussy fuck, intensity medium, dildo size medium confirmed".

"ass play, intensity medium, confirmed".

"ass fuck, intensity medium, dildo size medium, confirmed".

Sophie pressed the next button on the screen and the computer spoke again. "Remember that you can abort the experience at any time by simply saying stop. The machine will stop immediately so that you can exit. Now prepare to enter the machine".

Sophie turned to the machine and as she did so the hatch swung open and the couch on the floor of the machine slid out on rails until it was fully outside the hatchway. "Climb aboard and lay down on your back with your feet nearest the machine" said the computerised voice. Sophie complied.

"Commencing" said the voice as the couch that Sophie was laying on slid back into the machine taking her with it. "Hatch sealed" announced the voice as the hatch closed behind her. Sophie felt slightly claustrophobic. "Close your eyes, relax and enjoy" said the voice. Then, the lighting began to dim as the two couch like parts of the machine, the one on which she was lying and the one above her started to move towards each other.

Soon she was sandwiched between the parts of the machine, her body totally encased and enclosed. She felt a moment of panic thinking that she wouldn't be able to breathe, but then realised that although her face was covered she could still breathe easily. She actually felt quite comfortable because the fit between her body and the contoured parts of the machine seemed perfect. "Commencing massage, the machine will turn you over in order to massage your back" announced the voice. Sure enough Sophie could feel that the machine was turning her over to lie face down. It was also adjusting the position of her limbs. Sophie felt her legs being moved quite wide apart. She didn't resist. She was still totally encased and enclosed in the parts of the machine.

For the next 45 minutes or so the machine delivered a very thorough full body massage. It really was full body, and no part of Sophie's body escaped its attention. Soon Sophie felt really relaxed, she'd been somewhat nervous as she entered the machine but now she was really enjoying the experience. Although relaxed she enjoyed the feelings created when the machine massaged her more intimate areas. By the time the massage finished, she was lying on her back again still enclosed in the parts of the machine.

The machine allowed a short pause for Sophie to savour a few more moments of total relaxation. "Now what" thought Sophie. She was about to find out. Moments later, the machine began sucking at her breasts. Her tits were being toyed with and she could feel her nipples becoming more erect in response to the suction. Meanwhile, something was happening at her pussy. She wasn't being penetrated yet but her pussy was being gently stroked, toyed with and explored. At one point it tickled, and Sophie giggled momentarily and then began moaning softly as her pleasure increased.

Then, as if she wasn't already being stimulated enough, things began happening at her ass hole. Again, her ass wasn't yet being penetrated but she could feel a generous amount of liquid being squirted up her bum. Next thing a small but powerful vibrator began buzzing away at her ass hole. Sophie's level of arousal was rapidly increasing. She was being teased and pleasured at all her most intimate places. The machine had 'captured' her nipples and was gently tugging at them and vibrating them. Then she let out a little squeal as the machine began sucking at her clit.

This was like some kind of erotic dream. It was almost too much. "How much pleasure can a girl cope with" Sophie asked herself. And the best bit was yet to come. Sophie's pussy was already very wet, but she felt the machine squirt more fluid 'up there'. Then she felt one of the machine's two dildos entering her pussy. Slowly, gently, but firmly it pushed its way in. Sophie gasped as the machine sent all its length right into her pussy. She already felt near to orgasm and realised that she would cum before long. Slowly the dildo withdrew from her pussy and then pushed in again. In and out it went slowly gathering speed. "I'm going to cum so hard in a minute" thought Sophie. Then, the second dildo began pushing into her ass. She was being DPd. This one also began to increase its speed as it went in and out of her ass hole. Meanwhile the machine was still teasing her tits. Sophie's body trembled and convulsed as she experienced a powerful orgasm. After a while the machine became still. It was almost as though she was being given an opportunity to rest and recover before the fun continued.

After a couple of minutes, during which time Sophie rested contentedly, things started happening once again at all her intimate places. Soon she was being penetrated again both in her pussy and in her ass. This time the machine set a quicker pace and in no time things were whizzing in and out of her holes at speed, so that inevitably she came again. "Oh fuck, oh fucking hell, oh shit"! She screamed at the intensity of what she was feeling. But this time, the machine didn't stop. Instead, it went faster and faster. Sophie was in orgasmic overload. Orgasm after orgasm followed in quick succession. Sophie was screaming at the top of her voice. Then she remembered that she could stop the machine simply by shouting stop. "Stop"! She yelled whereupon the machine fell still. Sophie's body continued to twitch and convulse for a while after the machine had stopped. The hatch opened automatically, and that part of the machine on which she lay slid out of the hatchway. For a long time she lay still without attempting to climb off. She was exhausted, but she wore a very contented smile on her face.


Part Two (added: 2014/09/25)

Sophie sat down at her PC and logged onto the website of the company making the robo-fuck pods. Following her first experience in a pod just a few days earlier, she was keen to have another go. That experience had been truly awesome! She'd never had orgasms like that before. Now she wanted another go. Her password was valid for five more experiences. She was going to use all five.

Almost immediately, the website flashed up the same warning that she had seen previously. It read as follows:

Important Please Read

Some of our machines are capable of delivering a powerfully intense experience. User discretion is advised. We recommend that those first using our machines select a mild program to start with and then progress to more intense programs if desired. The company accepts no responsibility if the user has an experience which is more intense than they wanted.

After half a minute the warning disappeared. She entered her password and the website reminded her that she had been recruited as a product tester. Having used a pod, she would need to complete a detailed questionnaire about her experience before she could then book another session. If the questionnaire wasn't completed in full, she wouldn't be permitted to proceed further. "Fair enough" thought Sophie, and she set about completing the questionnaire.

The questionnaire was very long and detailed asking lots of explicit questions about various aspects of her experience in the pod. The questions included the following: Did she enjoy the massage? She had ordered medium intensity for the massage so did she feel that what was delivered was actually medium intensity? Did she enjoy the foreplay, i.e. the way the machine teased her tits and played with her pussy etc before fucking her? And so on and so on.

Completing the questionnaire took quite some time. Some of the questions needed really thinking about before being answered. But actually, Sophie enjoyed thinking back to various aspects of her experience. She could almost imagine herself back there in the machine. Eventually, she completed the questionnaire and hit the submit button.

Sophie then went to the booking area as she was keen to book another session. Once she'd put in her password, the machine identified that currently there were just two pods available for use within reasonable distance of her. These were the same two pods as had been available a few days earlier. There was the pod that she had already tried, and a second set up for a full spectrum BDSM experience. There was a third pod in the vicinity, but this wasn't going to be available for use for at least another three weeks.

Sophie was faced with a choice, and she was unsure what to do. The choices were, 1) go back to the pod that she had already tried, 2) book a session in the pod that was set up for BDSM, or 3) wait until the third pod became available in several weeks' time. Sophie noted that this third pod would be offering a 'latex experience'. Users would be able to get dressed up in a full body latex suit before being fucked by the machine. Alternatively, they could wear a PVC suit if that was their fetish.

It was a year or two earlier that that book "Fifty Shades of Grey" had been published. It had become hugely popular and as a result lots of women had been talking about bondage quite openly and fantasising about being fucked whilst tied up and helpless. Sophie had had such fantasies. The idea of being utterly at the mercy of whoever was fucking her really turned her on. She had tried to persuade Dan (her former boyfriend) to tie her up, but he hadn't really been interested. He just wanted to fuck her silly. Consequently Sophie's experience of bondage was almost none.

As she sat looking at her PC screen, Sophie was unsure what to choose. Of course, she could just go back and have a second go at the machine that she had used the other day. She wasn't sure about the BDSM pod, even though she had often fantasised in the past about being tied up. But then again, she wasn't sure about the pod offering the latex experience either. She had a slight tendency to claustrophobia and she wasn't sure how she would feel being totally enclosed in a full body latex cat-suit.

Eventually, Sophie decided that she would go for the BDSM experience. She entered that choice on the booking page of the website. She was then asked a whole lot of questions, much as she had been when she booked for the other pod. This time, there were a whole series of additional questions because this BDSM pod could offer a bewildering array of effects. The questions were about what BDSM effects she wanted to have, and what intensity level did she want. Sophie wasn't even quite sure about some of the things that she was being asked about.

Then the booking page flashed up the question "do you want to individually select your BDSM effects and set their intensity levels, or would you prefer to make your choices collectively"? Sophie thought for a moment and then decided to go for choosing collectively. She pressed the button marked "select all effects" and then to be on the safe side she chose the mild intensity setting. The webpage indicated that when she got to the pod she would be able to check, alter and confirm her choices.

Two days later, Sophie travelled to the location of her chosen pod. Like the first one that she had used, it was located in a shopping mall, a different one to that which she had first visited. As before, she punched in her password and the door of the pod swung open to admit her. Stepping through she pressed the button on the inside to close and lock the door. As before, the system spoke to her but this time the recorded message was a little different. "Welcome slave. You have now entered the BDSM pod. The door is closed and locked and you will not be permitted to leave until you have completed your experience". Sophie was slightly surprised at this announcement, but quickly dismissed it. She was feeling excited, and was looking forward to having fun in the fucking machine that this pod contained.

The layout of the pod was much the same as the other one that she had visited several days earlier, except that as well as a toilet there was a separate shower cubicle. Another difference was that the hatchway to the fucking machine was larger and the bottom of it was at floor level. She opened the hatch and peered in. She saw the machine was somewhat different to the one that she had used previously. It's most obvious feature was a kind of 'fucking horse', the sort of thing you would tie a slave to before fucking them.

Sophie hung her coat on the coat peg, undressed and stowed her clothes in the area provided. She used the toilet and then went over to the touch-screen control panel on the wall next to the fucking machine. She again entered her password and the system spoke to her. "Welcome slave, please confirm your choice of BDSM effects and intensity levels". Sophie pressed the button on the screen marked next, and once again the warning message that she had previously seen was flashed up on the screen in front of her.

Important Please Read

Some of our machines are capable of delivering a powerfully intense experience. User discretion is advised. We recommend that those first using our machines select a mild program to start with and then progress to more intense programs if desired. The company accepts no responsibility if the user has an experience which is more intense than they wanted.

After a few moments the warning disappeared and using the touch-screen she scrolled through the settings for her experience. At first, things seemed much as she had expected. But then she began to notice that some of the settings displayed were not what she had chosen. For example, when it came to dildo size, both for her pussy and her ass it was showing that a large size had been chosen. Frowning, she pressed the back button intending to change the choice to that which she wanted. But instead of going back, the machine went on to the next section. This section was that which covered a whole series of settings which she had selected collectively back at her PC.

So far as she could see, all of the intensity settings were at 'escalating'. Not quite sure what that meant, she again tried to change them but couldn't achieve this. There's something wrong with this blessed computer she said to herself. Then she moved on to the duration of experience setting, this was shown as 'indefinite'. What does that mean? She asked herself.

As she tried to navigate the system using the touch-screen, a message flashed up "all BDSM effects selected, all intensity levels confirmed". Then the system spoke to her in its computerised voice. "Well done slave, you have chosen well. Remember that you must now do exactly as you are told. Also remember that you cannot exit the pod until you have spent time in the machine.

Sophie was a bit concerned that the settings for her experience were not quite what she herself had chosen. "Never mind, too late to back out now" she told herself. Then, a bondage hood tumbled out of a slot in the wall. It was a bit like something being dispensed from a vending machine. "Have this hood in your hand when you climb aboard the machine" said the voice. "Now go to the machine". As Sophie turned to the machine, the hatch opened and part of the apparatus slid out through the hatchway.

There before her was this fucking horse. It was very cleverly designed so that it would securely hold a body and yet much of that body would still be exposed for 'treatment'. At one end was an arrangement much like a set of mediaeval stocks. "Climb aboard the horse and put on the hood before leaning forward into the stocks" said the voice. Sophie complied. She wasn't very happy about this hood. It seemed to be made of some kind of rubber moulded into the shape of a person's head. It had two parts. One part was shaped to fit over the wearer's face and the other part went over the back of the wearer's head. Once in position, the two halves of the hood were secured together by latches so that the wearer's head was locked inside.

Sophie pressed the face shaped half of the hood against her face. She realised that it included a mouth tube that seemed really enormous. In order to get it into her mouth she had to open her mouth as wide as it could possibly go. Then taking care not to get her hair trapped she pressed the other half of the hood to the back of her head. As she did so she heard a series of clicks as the automatic latches engaged and pulled the two halves of the hood tightly together.

The hood had no eyeholes or nose holes. She couldn't see and she could only breathe through the enormous mouth tube. "Lean forward and place your neck and wrists in the stocks" said the voice. Gingerly, Sophie lent forward feeling for the lower part of the stocks which she knew was there. Carefully, she put her wrists and her neck in the places waiting for them. After a few moments, the stocks closed so that her head and wrists were securely held. Almost simultaneously, other restraints at her ankles and around her waist swung into position and locked.

She was now fully installed on the fucking horse, in a kneeling position with her body horizontal and partly supported. The whole thing was cleverly designed so that although supported, much of her body was exposed. She was securely locked into position and couldn't move apart from being able to slightly move her head. Then, a part of the machine captured a ring on her hood and pulled her head upwards and backwards. Now she couldn't even move her head.

Then the fucking horse with Sophie on board began moving backwards into the machine from whence it had come. Once it had passed through the hatchway, the hatch closed and locked. "Hatch closed and secure" said the voice.

Sophie was beginning to think that she'd made a mistake in agreeing to use the BDSM pod. She had fantasised about being tied up, but this was something else. The machine had locked her onto the fucking horse so securely that she couldn't move an inch. She was utterly and totally at the mercy of whatever this machine was going to do to her.

"Commencing" said the voice, and the whole apparatus into which Sophie had been locked now withdrew back through the hatchway into the machine. Inside her hood, Sophie was feeling very claustrophobic and she was beginning to panic. All of this seemed much more than she had anticipated.

Suddenly, something was happening at her breasts. Her nipples were being sucked, not gently but really quite aggressively. They were being sucked only so that they could be captured. Once the machine had made them erect, it grasped them very tightly and pulled them very hard. "Ow that hurts"! Sophie thought. She let out a scream as far as she was able through the mouth tube of her hood.

Then she felt a sharp stinging pain at her backside. The machine was thrashing her buttocks with something like a cane. Before the pain of each strike of the cane subsided, the next strike landed. Soon the cheeks of Sophie's ass felt as though they were on fire. It was horrible. Although locked into position Sophie's body began to tremble.

Despite her pain Sophie felt some sort of apparatus manoeuvring into position up against her pussy. She wondered what was going to happen next, but didn't have to wait long to find out. Suddenly, something was clamping hard and painfully onto each of her pussy lips. Again, Sophie screamed as loud as she could through the mouth tube of the hood. Her mind was in turmoil. This was extreme. It was much more than she had anticipated. When she had selected the intensity level for her experience she had chosen 'mild'. This wasn't mild, it was severe. The machine had a mind of its own, and she was at its mercy.

The machine had stopped thrashing her backside, but now began thrashing the soles of her feet. All the while, aggressive clamps still had hold of her nipples and her pussy lips and were tugging them painfully. Sophie was overwhelmed by pain and feelings of panic. She couldn't cope with this, it was extreme. Surely no one would enjoy being subjected to this sort of punishment. She wanted out. But she wasn't going anywhere until the machine had finished with her.

The machine wasn't anywhere near finishing with her yet. It was equipped with electric probes rather like a cattle prod. It began prodding her backside, each prod aimed at a different target area. Each time a prod made contact she suffered a horrendous electric shock and each time she screamed in response. No one could hear her screams of course, but she couldn't suffer such pain without giving vent to screams.

After what seemed an eternity the cattle prods desisted and Sophie had a few brief moments of respite. But then she felt fluid being injected into her pussy and into her ass. "Lubricant" thought Sophie, she was right but what she didn't know was that it was electro conductive lubricant gel, she was about to get shocked internally. Shortly, very large electro conductive dildos went into her pussy and then her ass. Next moment, the first internal shocks came. Her body convulsed in its restraints as wave after wave of electricity pulsed through her.

Then after a few minutes, the dildos withdrew, and the clamps at her nipples and pussy disengaged. The clamps being removed from those tender parts allowed blood and sensation to return and she suffered a new wave of pain. After a while the pain began to subside and as she recovered the machines electronic voice spoke to her. "Now that you have been subdued and severely punished, now that you know that this machine is your master, you are going to be severely fucked"!

Again, Sophie felt apparatus moving into position at her crotch and near to her head. Slowly a dildo entered the wide bore mouth tube at her hood and thrust its way into her mouth and down her throat. Sophie gagged and thought she was going to vomit. In and out went the artificial dildo and soon Sophie learned that in order to breathe she had to time her breathing taking account of its rhythm.

Then another dildo began forcing its way into her pussy. Sophie gasped as it penetrated her. It felt very big and Sophie remembered the reference to large size when she had checked the settings on the control panel. It felt so big that Sophie was afraid it was going to rip her pussy apart. Next thing, another artificial dildo rammed its way into her ass hole. Thankfully, each dildo was equipped with a lubricant injection system, so that each time they penetrated more fluid was squirted into her holes.

Although Sophie had just suffered a horrible ordeal, she was finding this part of her experience a turn on. The two artificial dildos at her rear end started off penetrating her with a slow and deliberate rhythm. But then the speed of their penetrations began to increase. As the speed increased Sophie realised that she was going to have a massive orgasm. Faster and faster, and then yet faster the two massive dildos whizzed in and out of her holes. Sophie's body twitched and convulsed in its restraints as a series of massive orgasms overwhelmed her.

After a while, the machine fell still. Sophie was being allowed a period of rest. She was still tightly restrained and therefore still trapped in the machine. But at least for now it wasn't doing anything to her, so she had an opportunity to rest and recover. Then after about half an hour, the machine began to stir again. The dildo at her head end again forced its way into her mouth and down her throat.

Its rhythm was different than before. Each time the dildo entered her throat, it stayed there for a few seconds before withdrawing again. As before Sophie adjusted her breathing to take account of its rhythm. Then, each time the dildo was in her throat it injected a quantity of water. This was the machines system for keeping her hydrated if it chose to keep her captive for many hours or even for days. One can survive without food for days on end, but without fluid death is only a day or two away.

For the next 48 hours the machine kept Sophie captive. Thankfully it didn't torture her anymore. No more strokes of the cane and no more electric shocks. But it fucked her relentlessly again and again. She was allowed periods of rest, but after each rest period the dildos pounded her holes at ever-increasing speeds. In the space of those two days she had more orgasms than some people have in a whole year.

Sophie was wondering when this was all going to end. Originally, she had specified that she wanted the machine to fuck her for two hours. But she realised that she had spent much longer in the machine. It must be days she thought, when is this all going to end? Then a terrifying thought entered her mind. She remembered that when she was reviewing the settings for her experience, the setting for the length of time she would be held in the machine had been shown as 'indefinite'. She had tried to alter that without success.

Supposing indefinite meant for ever? She could be trapped in the machine being tortured and fucked for days or perhaps even weeks until someone from the company came to rescue her.. She felt real panic as this possibility hit home. Suddenly, she realised that the restraints with which the machine had kept her captive were releasing. Then she heard the hatchway of the machine opening and the fucking horse on which she had spent the last two days began moving out through the hatchway.

Sitting up Sophie began feeling round the hood she was wearing and realised that the latches that had secured it were now released. Pulling the two halves apart she removed the hood and gave a huge sigh of relief. She'd had no choice but to tolerate the hood with its huge mouth tube, but she was much happier to be free of it. Feeling rather stiff after two days in the machine, she slowly clambered off the horse which then retreated back through the hatchway into the machine.

Having used the toilet, showered and dressed Sophie pressed the button at the door of the pod and it opened to allow her out. Walking slowly out of the shopping mall she boarded the urban tram which would take her back home. Sitting on the tram she reflected on the experience that she'd just completed. She'd certainly enjoyed being relentlessly fucked by the machine but its BDSM treatment of her had been a horrible ordeal.

Something must have gone wrong with the system, because it had tortured her much more severely than she had wanted or had specified when she booked to use that pod. She certainly wouldn't be using a BDSM pod again after that experience. But despite her ordeal she quite liked the idea of using a robo-fuck pod again, as long as it was one that wasn't equipped with BDSM capabilities. The orgasms that these machines gave her were awesome, and she wanted more of them.


Part Three

Three weeks after her second experience in a robo-fuck pod, Sophie once again logged onto the company's website. The first part of that experience had been a horrible ordeal. There must have been some sort of technical glitch that caused the machine to deliver an experience that was much more severe than she'd wanted. But the second part of her session in the BDSM machine had given her orgasms more intense and mind blowing than she'd ever thought possible.

There was no way that she was ever doing get into the BDSM machine again, but she couldn't wait to get well and truly fucked by one of the other machines, one that wouldn't torture her. She was hooked on the awesome orgasms that these machines could give her. Entering her password, which identified both the customer's identity and location, she looked to see what machines were available near her. She now saw that the third machine offering the 'latex experience' was available.

She'd been wary of trying this machine before, as she tended to suffer from claustrophobia and didn't know how well she would cope with being totally enclosed in latex. But she had survived her experience in the second machine during which she had been required to wear a hood that fully enclosed her head. She now thought that she could cope with wearing a latex catsuit that included a permanently attached fully enclosing hood, which apparently was what was involved.

But before she could book an experience in this third machine, the system required her to compile a report about her experience in the second machine. As before, there was a detailed questionnaire to complete. Actually, the questionnaire was even more extensive than the one relating to the first machine she had used. She carefully completed the questionnaire, including details of the problems that she had encountered. She reported that she didn't know why the machine had given her a more severe experience than she wanted, but she supposed that it must be some kind of software glitch. When she had completed and submitted the questionnaire, she was free to book another session in a machine.

She proceeded to make a booking on that part of the website. As she did so she carefully checked that the machine didn't have any of the instruments of torture that the second machine had used on her. When it came to the point of choosing the size of the dildos, she chose large. As regards the time for which she wanted to be fucked, she specified six hours interspersed with brief rest periods. She also entered the set of detailed body measurements saved from previous bookings.

48 hours later, Sophie drove the ten miles from her home to the car park of a large shopping centre. The pod which she had booked to use was located not in one of the shopping centres malls but in a corner of the car park. As she approached she realised that it was a little different from the other two pods in that it was taller. Walking up to the pod she entered her password and the door opened to admit her.

Although this would be her third time using a pod, she could feel her excitement mounting as she pressed the button on the inside of the door which caused it to close and lock. The now familiar recorded voice once again spoke "Door closed and locked, you are now securely locked in the pod. No one else can enter whilst you are using it". Sophie was keen to get started on her experience, but she couldn't resist taking a look at the robo-fuck machine before getting undressed and using the toilet.

The hatchway to this machine was the height of a full-size door. Opening the hatch she peered in. The inside of this machine was quite different than the others that she had used. There was apparatus hanging from the roof of the chamber. It looked as though that apparatus was intended to suspend the user in mid-air. Directly below the hanging apparatus was a kind of curved rail, positioned at about waist height. The rail was padded so presumably was intended to be lent against. At the floor there was some other kind of hatchway but other than that there wasn't much to be seen within the internal chamber of the machine. She did notice a large button positioned next to the hatchway. Closing the hatch she looked round at the rest of the pod. There was a toilet, a shower cubicle, somewhere to hang her coat and stow her clothes. The dressing area was equipped with comfortable bench style seating that was big enough to act as a couch. Also there in a corner hung a shiny latex full-bodied catsuit with integral feet, mittens and all enclosing hood.

Sophie felt her pulse quicken as she walked over to the catsuit and examined it. It was very shiny. Its inner surface had that sort of latex texture that made it want to cling to anything which it touched. The integral feet and mittens had metal rings attached. There were also rings attached to the suit's shoulders. Once in the suit she would be fully enclosed except for an area at her crotch where there was an opening to facilitate access by the machine. Adjacent to the opening at each end was some kind of metal attachment built into the suit.

Sophie turned to the touch-screen control panel on the wall of the pod near to the hatchway of the machine. She checked the settings which she had entered on her PC at home, and everything seemed to be in order. The machine would fuck her, then let her rest, then fuck her again and so on for six hours. She couldn't wait. When she pressed the 'confirm' button on the control panel, the machine spoke to her. "You can only use this machine when you are fully installed in the latex catsuit that has been provided. Once you are in the suit, enter the machine and press the large button beside the door".

Eager to get fucked Sophie walked over to the undressing area and took off all her clothes. Then she used the toilet before turning to the latex suit. Hanging with the suit was a supply of water-based lubricant fluid. Realising that this was to facilitate her slipping into the suit, Sophie applied a generous quantity to the suits inner surface. She'd never worn a latex suit before and as she prepared to get into it she was feeling more and more excited.

There was something incredibly erotic about the feelings she experienced as she slid into the suit. Starting with the legs she tugged at the suit until its legs fully encased her own. It was wet and it was slippery and the way that it clung and caressed her skin as her body slid into it made her feel really quite horny. Pulling again she eased more of her body into the suit via the zip opening at its back. She carefully positioned the crotch area of the suit so that the opening was carefully aligned with her holes.

Sophie could feel her heart pounding and she felt a growing sense of excitement. She realised that she would need to put on the integral hood before pulling on the arms of the suit and finally zipping it up. Examining the hood she saw that the face side of it was moulded to form a perfect fit. The mouth of the hood took the form of a mouth tube so that once in position she would not be able to close her mouth, but at the same time would be prevented from speaking coherently. The hood had no eye holes so would act like a blindfold.

Taking a deep breath Sophie bent her head forward so as to get it into the attached hood. Pressing the face area of the hood against her face she checked that she could breathe easily through the mouth tube. Once satisfied that the hood was perfectly in position she turned her attention to getting her arms in the suit. Applying additional lube to her arms she thrust them into the sleeves. This was perhaps the most difficult part of the whole procedure. The suit had integral mittens. She needed to get a hand in its mitten and then use it to grasp and pull the other arm of the suit. It was easier said than done.

After several minutes of pulling and struggling, she managed to get her arms and hands fully installed in the sleeves and mittens of the suit. Now it only remained for her to close the zip at the back of the suit and she would be fully encased in latex. Her heart rate quickened anew. The zip fastener on the suit was helpfully equipped with a tape that she could grasp in order to make the job easier. Reaching behind her back she felt for the zip fastener and its tape. Locating it, she pulled the tape until the zip had travelled all the way up the back of the suit reaching its endpoint at the back of her head. She was now totally enclosed in tight-fitting shiny latex. If she could have seen herself she would realise just how utterly sexy she looked wearing the suit. She couldn't see herself, but she certainly felt very sexy. Being in the suit gave rise to intensely erotic sensations.

Slowly since she couldn't see she made her way over to where she knew the hatchway into the machine was positioned. Opening the hatchway she stepped through and stood inside. Feeling for the large button beside the hatch she pressed it hard. Immediately the system spoke to her in its strange computerised voice. "Welcome. Please step forward and find the curved rail positioned in the middle of the floor. Once you find it stand with your back to it leaning into it, and push the button on its far right end". Sophie did as she was bid. Leaning into the curved rail she pushed the button. The system spoke again. "Sequence initiated. You are about to be fucked. Enjoy!"

Enclosed in her suit Sophie couldn't see what was happening but she sensed that things were happening around her. She was right. The computer controlled machine was using laser scanning to check the precise position of her body and limbs. The apparatus hanging above her began to move, the various parts of it each seeking their assigned fixing points on her suit. First Sophie felt part of the apparatus latch onto the fixing rings mounted on the shoulders of her suit. Next she found herself being hoisted and soon she was suspended in midair. Then she felt her wrists and ankles being captured as the machine latched onto metal rings. She felt her legs being pulled wide apart and also her arms being pulled wide. There she was, totally enclosed within the latex suit suspended in midair with her arms and legs pulled and held wide. The thought occurred to Sophie that although this machine wasn't advertised as a bondage machine being in this suit was tantamount to bondage. She couldn't move and she couldn't escape. Whatever the machine was going to do to her, she couldn't resist.

Sophie hung there in midair wondering what was going to happen next. She was about to find out. That small discrete hatchway in the floor of the machine now opened to reveal more apparatus. Controlled by computer, the top part of the apparatus rose up on its mechanism until it nestled snugly underneath Sophie's crotch. Then electromagnetic latches engaged clamping onto the metal parts Sophie had noticed positioned around the access hole in the crotch area of the suit. The apparatus was now locked onto her, and her crotch was latched onto it.

The top part of the apparatus was anatomically shaped to fit snugly up against Sophie's pussy and ass hole. Its purpose was to facilitate penetration by a selection of dildos. Not only could the machine penetrate her pussy and ass, but it could 'ring the changes' by selecting from a variety of dildos. Some of them could vibrate, others could rotate, some could inflate and some could even deliver electric pulses. Sophie was about to have yet another intense experience in this machine. However, that was what she wanted.

Sophie felt a large squirt of fluid going up her pussy. She knew that meant it was about to get underway. Sure enough, she felt her pussy being penetrated by a large dildo. Slowly at first she felt it move in and out. Her breathing quickened. Very slowly, the speed of the penetrations increased. Sophie's pleasure and excitement also increased. Then she felt the second dildo gently forcing its way up her ass. Through her mouth tube she gasped and grunted in pleasure.

The speed of the two dildos was not synchronous. So at times they were penetrating simultaneously, whilst other times her holes were being penetrated alternately. Sophie couldn't make up her mind which she preferred, but she knew that she was going to cum very soon. Faster and faster the dildos did their work. Then of course her body was engulfed in an almighty orgasm. She let rip screams of pleasure through the mouth tube in her suit, and her body convulsed.

The machine fell still. Sophie had programmed her experience in this machine, so that it would fuck her and then let her rest, and then fuck her again, and so on until six hours had elapsed. This was her first rest period. She had 15 minutes before the machine would get to work on her again. By the time her six hours in it were up, it would have fucked her some 18 times in all. Hanging there suspended in her latex suit she waited for the next round.

Sophie had almost dozed off when the machine began to stir again. It was ringing the changes. This time round, it kept the speed of penetrations very low and the dildos were moving very lazily as they went in and out. However, this time the selected dildos were able to deliver very powerful vibrations. The speed stayed low but the strength of the vibrations slowly but steadily increased. Sophie knew that she was going to cum, and that when she did she would cum very strongly. Again her pleasure and excitement rose steadily until she was engulfed by an almighty orgasm. Her body convulsed and she let out screams of raw sexual pleasure through the mouth tube in her suit.

The next few hours were like some intensely orgasmic dream. She barely had time to rest in between the machines periods of activity. Time after time the machine pounded her holes relentlessly until it knew that it had made her cum powerfully. The computer-controlled machine had sensors that could detect her orgasms. It wasn't going to be satisfied with causing her to have second-rate or feeble orgasms. It would send its dildos whizzing in and out of her holes until it knew that it had got her to cum really hard. That was what she had programmed it to do and that was what it delivered.

After six hours of intensely erotic fun had elapsed Sophie waited for the machine to bring her session to an end. She had carefully counted each of the 18 activity cycles that it had put her through during the past six hours. 'Any moment now' she thought as she waited for the machine to release her. But instead of releasing her it waited for some 15 minutes before then commencing another activity cycle. Surprised, Sophie wondered whether she had miscounted. She didn't think so but given the intensity of what the machine had been doing to her perhaps it wasn't a surprise.

Once again the machine pounded her holes without mercy until it sensed that it had given her yet more awesome orgasms. Sophie decided that she may as well enjoy this last activity cycle. After all, she was trapped inside her skin-tight latex cat-suit and captive in the machine so she couldn't escape or abort the session even if she wanted to. Finally the cycle ended and the machine fell still. Sophie waited, surely now machine was going to release her. But once again the machine waited 15 minutes before commencing yet another cycle. Now Sophie was concerned. Something had gone wrong and there was nothing she could do to extricate herself. The machine was designed to hold her securely until it had finished doing whatever it had been programmed to do to her.

Over the next few hours Sophie lost all track of time and all count of how many times the machine had put her through its activity cycle. The experience which she had so enthusiastically programmed for herself and which she had enjoyed so much at first was now turning into some kind of nightmare ordeal. She wasn't finding this an orgasmic adventure anymore and didn't cum so readily. Unfortunately she had programmed the machine to continue each cycle relentlessly until it sensed that it had given her massive orgasms. In other words she wouldn't get a rest period at the end of each cycle until the machine knew for sure that she'd had multiple orgasms.

Sophie realised that the only way she was going to get any respite in the form of regular rest sessions was if she worked with the machine, psyching herself up to make sure that each of its cycles gave her several orgasms. If she didn't do this it would just keep pounding away at her holes unceasingly. In other words if she didn't satisfy the machine that it was truly satisfying her it would fuck her to destruction. Sophie felt on the brink of panic but she understood that the only way of surviving this ordeal was if she avoided panicking. It was difficult, here she was in this nightmare ordeal and she knew not when it was going to end. She had no way of stopping the machine or of extricating herself. She had no way of communicating with anyone outside the pod. No way of calling for help. She hoped and prayed that someone somewhere knew that she was stuck in here and that she was in serious trouble. She just hoped that someone was coming to get her out of this nightmare.

24 hours later an engineer stood outside the Pod in which Sophie was still being relentlessly fucked by the machine. He was holding an electronic device which he had plugged into a connecting port built into the outer casing of the Pod. For some 25 minutes he attempted to execute an emergency override but to no avail. Reaching into his pocket he took out a mobile phone and called head office. "It's no good it won't have it. I can't get in". He said. "You'll have to get Dan down here right away. He's the only one who will know how to sort it out. I just hope the customer is still alive by the time we manage to get her out of there".

Later that day an emergency ambulance pulled away from the Pod en route for the nearest accident and emergency unit. Never before had the crew had to deal with a case quite like this one. On arrival they had been confronted by a 'casualty' fully enclosed in a skin-tight latex cat suit. They quickly realised that the only way they could monitor the casualty's vital signs was if they extricated her from the cat suit. That was easier said than done and the task was not made any easier by the fact that the casualty was severely psychologically traumatised. Sophie had been through a truly horrible ordeal because a glitch in the software had led to her being trapped in a machine that wasn't ever going to stop fucking her until someone intervened or it broke down. Thankfully now her rescue was underway.