Author's Note: Stories on this site may contain fiction of an adult nature. They may contain themes involving Incest, under age sex, rape, bestiality, drugs or alcohol abuse. If these subjects make you uncomfortable please exit now. The stories are meant for the entertainment of adults as defined by your local government or society, if you are below this age please exit now. The author does not condone or encourage anyone to act in real life the way the characters depicted in this story act.

First Published: 30 October 2014

Crash Test Dummy
by Isabella

Story Code: M/F, Anal, Robot/F

I was working as a cleaner in a small engineering company. I always went in after the end of the normal working day so I often didn't see anyone, just their mess. I never saw the projects they were working on in R&D because of security, they locked everything away before they went home or they locked the laboratory door so that I couldn't go in and clean.

Simon Green sometimes worked late; his laboratory hadn't been cleaned all month because the project he was working on was too large to put away at the end of the day. I bumped into him on Friday night; he was running around like a 'blue arsed fly' he seemed to be desperate for a cup of coffee but the vending machine wasn't playing ball. I was cleaning the break-out room when he ran in and stabbed at the controls, a cup of something warm and brown was dispensed, he took a sip and then threw the cup and its content into the bin.

"You having a problem Sir?"

"I'm desperate for a cup of drinkable coffee; I've been at it for fifteen hours now and not a single cup of decent coffee. I'm trying to run a very important series of tests before I can go home and I'm finding it difficult to concentrate."

"Well, I have coffee in my cupboard, milk and sugar as well, I could make you one if it would help, it's only instant though!"

"I don't mind instant, just so long as it's strong and sweet."

Simon wandered off to his lab muttering to himself as he went, I think he may have been swearing about the company's choice of vending machines but I couldn't hear him clearly. I made the coffee; I used two heaped spoons full of coffee granules and two of sugar. I had noticed that the coffee that he was taking from the vending machine seemed to have milk in it, milk or the rubbish powder that they used in place of milk in the machines. I was going to put the milk into the cup but I wasn't sure so I took the mug of coffee and the carton of real milk from my little store room and headed to Simon Green's laboratory.

I knew that there was something in Simon's lab that was top secret, so I knocked on the door and waited. I had expected Simon to come to the door and take the mug of coffee and close his door again in my face but I heard a faint, "Come in" from inside the lab. I had been in Simon's lab loads of times but not at all in the past month. I took his coffee in to the room and asked of he'd like milk in his coffee.

"Just a splash please."

I don't know what I had expected to see inside the top secret research and development laboratory but it wasn't a bed.

"A bed! You're spending all of this time working on a new bed design for a hospital bed?"

Simon took another sip of his coffee and had a look on his face that looked a lot like my husband would have on his face after his happy ending on top of me in bed; I shook my head and tried to get rid of the image of my husband fucking me.

The room was a real mess, but then it would be, I hadn't been able to get in for a month and all of the people working in Simon's lab with him were men and men seemed to have a built in visual filter that filters out mess and dirt so that they don't see it anymore. I was about to leave the room when I stopped.

"As I've been in the room and seen the... whatever it is, is it okay of I clean up a little in here before I go home?"

Simon stopped tinkering at the foot of the bed and looked up, into my eyes, "No, I'm not designing the bed; I bought a standard hospital bed, I'm building this."

I walked around the bed to get a closer look at what he was tinkering with; it looked like a shop-window mannequin to me, well, half a mannequin, I could see a head with a more realistic face than any shop dummy, realistic hair that had been well styled and it even seemed to have a realistic looking mouth and eyes. The arms and hands looked like the kind of things that might be given to an amputee to replace a missing limb. The mannequin had a sculptured chest and what looked like a six-pack around its abdomen but it had no legs, it was bolted on to the bottom of the bed with all of the electronics and mechanicals

Simon explained that he was building a kind of robot, a therapeutic robot and he needed to get it finished and tested as quickly as possible as he'd been given a very tight deadline, well, it wasn't a customer driven deadline, it was more that he'd been given just a month to work on his private project before his next project for the company started and that was due to start taking all of his time and space from Monday onwards.

Simon looked around the room and he looked a little shocked, as if it were the first time he has seen the amount of mess he'd made over the past month, "Perhaps you'd better start cleaning over there, start with the bench in the corner and then the floor please."

The bench had a few boxes on top of it that I'd need to move before I could sweep the mountains of wire clippings and curls of plastic swarf that had been created while drilling blocks of plastic and nylon during the manufacturing process of the mannequin. I picked up the first box and moved it to a shelf, as I moved it, it turned through ninety degrees and the front face was outwards, it came as a bit of a shock when I saw the face of a woman with her mouth wide open.

I looked towards Simon; the box appeared to contain a sex toy, an inflatable doll, the box proclaimed three holes and realistic hair. As I was about to ask Simon about the sex doll I saw the mannequin lower towards the bed, Simon had a laptop plugged in to the back of the mannequin and was sending commands through to the robot. I watched the robot lower towards the bed and then the robot grew, extending along the length of the bed. What had looked like a well-defined six pack was Simon's way of camouflaging the concertina of fake skin needed to allow the mannequin to grow or shrink in length. As the robot lowered down onto the bed I noticed a projection from what would have been the lower abdomen if the mannequin had been a real man, a fake cock lower down towards the bed.

"Can you find... oh, there it is, can you unpack the doll for me and blow it up, that's if you're okay doing that kind of thing for me."

It took me a while to realise that the blow-up doll was something to do with his testing of his mannequin rather than something recreational for himself. I unpacked the doll and found the little hose that I had to blow through to inflate it. The box seriously lied about the realistic skin tone and texture and real hair. Simon's mannequin was far more realistic looking than the sex shop doll and the mannequin moved in almost every way, right down to the fingers on its hands and Simon was proving that every joint and fake muscle actuator worked as his design predicted.

It took a while for me to blow the doll up fully and force the stopper into the pipe, Simon pulled the chord out of the back of the mannequin, I had a little titter, if the rear of the mannequin was as anatomically perfect as the front, the chord from the laptop would have been plugged into its arsehole.

As soon as the chord was removed the mannequin returned to the upright position with its hands at its side. Simon took the doll off of me and placed it on the bed, flat on its back with its legs positioned perfectly for the mannequin to lower down onto it.

"Well, it looks like I might get this finished after all before I have to clear it all away for another year."

Simon smiled at me as I started to sweep his crap off of the bench and then he sought out a small box on a flexible chord and pressed a green button. The mannequin started to lower down towards the doll, it got half way down and then returned to the upright position.

"Damned, damned, damned! What the fuck's gone wrong with it now?"

Simon plugged his laptop into the mannequin's bum and started to type rapidly on the keypad. I finished wiping the bench down with a wet cloth to get rid of the last of the dust and replaced the boxes that I had taken off of it before I started cleaning it down.

"How could I be so stupid, it's failed the heat test, I forgot that last year I had added thermal detectors so that the robot could sense if the woman was dressed or undressed! Well, that's it, I can't possibly find a researcher who will be willing to test the robot with me before Monday morning."

Simon patted the robot on its shoulder, "Sorry mate, you remain a virgin until next year!"

I cleared my throat, "Erm, does it have to be a researcher to help you test the robot?"

"Well, I guess not, all it needs is a woman who would be willing to take part in the tests but I tend to find that a professional researcher would understand what I'm trying to do more than the 'Average woman in the street', far less complicated."

"Well, I did say that I was willing to do anything I could to help!"

"Really, that would be wonderful, you make a great cup of coffee, but could I have a little more sugar in the next cup please?"

"I was wondering if I, you know, being a woman and everything, perhaps I could stand in for a professional researcher, if it would help that is."

Simon looked at me strangely for a moment and then his face changed from a frown to a smile.

"It'll take a few minutes for me to clear the safety buffers but it would be a great help to me if you could stand in for the dummy. But, while you're waiting for me to work my magic with the laptop, could you possibly work your magic on the coffee front please?"

I made the fresh cup of coffee and took it back to Simon, I picked up my brush and began to sweep the floor again, Simon took a sip of his coffee as he read through his notebooks, "Damned, this is why I need to try and finish this now, I've been working on this for four years, I have made loads of changes but because it's eleven months between looking at the project, I forget what changes I've made. Hey, I thought that you offered to help."

I froze mid sweep of the brush, "I, I did, what can I do for you?"

"I'm sure that you said you'd be willing to do anything, did you mean that?"

A shiver ran through my body, Simon was ten years younger than me, he was tall, handsome, clever, witty and very fit where my husband of twenty-one years was just the exact opposite, my husband would rather sit watching TV and drinking beer than interacting with me and I do mean 'interacting in the bedroom'.

Another shiver ran through my body as I imagined myself taking the sex doll's place on the bed, the sex doll had been totally naked and the only person who had seen me totally naked since I married had been my husband, not that he'd wanted to see me naked in a while. My mouth went dry, I wanted to help but could I do 'Anything' that was asked of me, if I were going to replace the sex doll, would Simon come straight out and ask me to strip off, clinically, matter of factly, just a job of work or would he seduce me, sweet talk me out of my clothing?

For twenty years I had been leading a boring life, married to an unemployed, drunken slob, doing two jobs, sometimes three to make ends meet and I had never done anything exciting in my whole life, well, that wasn't strictly true, six months earlier I had been walking through a department store, taking a shortcut from one bus stop to the next when I saw a pair of glittery tights, the kind a dancer might wear under a far too revealing dress. I looked around, no one seemed to be looking in my direction as usual and so I just slipped the tights into my handbag and walked towards the door, my heart racing at ten times its normal speed. I walked calmly through the doors and once in the street I ran like fuck. Ran past my bus stop, ran to the one after I usually got on my bus at and as I ran I expected to feel the cold hand of the law on my shoulder and as I ran I climaxed. It had been the first orgasm I'd had in over a year and it took me so much by surprise that as I shuddered through the orgasm I actually pissed myself, it was a good thing that I was on my way home and not to my next job.

I hadn't planned to shoplift the tights when I walked through the shop, just like I hadn't planned to help Simon but the difference was, then I had just snatched the tights and walked on, no thought at all until I realised that I had to run once outside, now though, I had time, in fact it seemed like an age since Simon had asked me if I was willing to do anything, the word 'Anything' was still reverberating in my head even though it seemed like it was said an hour ago.

I was still leaning heavily on my brush, Simon was just standing there looking at me, his grin showed two rows of pearly-white teeth, perfectly straight, not a hint of tobacco staining or chips from fighting and even though I couldn't guarantee it, I doubted that he had the smell of week old Brown Ale in his breath. I tried to swallow but there was no moisture left in my mouth. Simon raised his eyebrows, it was now or never, take an exciting risk or go back to my boring old life.

I licked my lips, my mouth was as dry as a desert but I managed to squeak out a whispered, "Anything!"

Simon's grin widened and he looked back at his notes, "Okay then, just slip off your shoes and hop up on the bed where the doll is."

Simon pulled the inflatable sex toy off of the bed and I stood blinking my eyes, the sex doll was totally naked and now all he was asking me to take off were my shoes, I was feeling cheated, cheated out of my sweet talking, cheated out of being asked to take my clothes off. I could take my shoes off and lay on a bed any time, this wasn't risky, this wasn't excitement.

"Come along, shoes off and hop up on the bed. I've been reading through the changes I've made in the automaton and now I realise that I need to test several steps before the main test."

I was disappointed but I had said that I would do anything to help. I lay on the bed with my legs slightly open, one foot either side of the mannequin.

"Press the green button when you're ready, if you feel uncomfortable for any reason press the red button and the robot will move away from you to a safe position. Okay, press the green as soon as you're ready."

I took a deep breath and pressed the green button, the mannequin began to hinge down from the foot of the bed towards my body, the face of the mannequin was lined up roughly with my breasts but as it closed in on me it extended its body length so that it was eye to eye with me. I lay there not really knowing what to expect but the face of the robot slowly got closer and closer when its lips were just a few millimetres away from my lips its right hand cupped my left cheek in a soft caress and then its lips pressed lightly against mine.

The kiss and caress weren't unpleasant although the robot was a little colder than I'd expected. We kissed for a few minutes and it started to move its hand down from my cheek, down onto my neck and very slowly down onto my shoulder, keeping contact with my bare skin, it was trying to open the collar of my blouse or rather, it was testing just how far my blouse would open. When it got to the full extent that could open without unfastening buttons, it seemed to pull a little more but then stopped moving its hand.

I jumped a little with shock as I felt something rubbing against my lips and as I jumped my breasts bumped gently against the mannequin's chest and it backed away from me, its hand still in the position it had been on my shoulder inside the neck of my blouse. It looked a little off-putting hovering above me as if it were about to pounce.

"What's wrong?"

"I don't know, something touched my lips and made me jump and then it just stopped."

Simon flicked through his notebook, "You must have triggered the safety mechanism built into its chest, pushing against his chest is a bit like pressing the red, stop button or rather half a press on the stop button. I think the robot was testing to see if you wanted to French kiss, just press the green button and it will cycle back to the beginning again, this time, when it tests your lips, just open your mouth slightly.

The robot repeated everything exactly as before but this time when it tested my lips, I opened my mouth to it and started a rather outlandish soul kissing session that seemed to go on and on; I even forgot that I was kissing an animatron and began to return his kissing by pushing my tongue into his mouth.

As soon as my tongue slipped into the robot's mouth things changed a little, its left hand began to move and it's hand reached out for my ribs and then slipped up towards my breasts, it was just like a real man, using its fingertips to gage the size and shape of my right breast and then palpating it gently through my blouse and overall.

I was getting very turned on by the robot's touch and kiss even though it was more than a little disconcerting to have Simon's face keep popping into view as he was watching the robot's hand on my breast. Suddenly the robot started to move away from me, my head lifted from the bed as I was trying to keep the kiss lasting as long as possible.

"What did you do to trigger the robot to feel your breasts?"

I felt very awkward, letting Simon test his toy out on me was one thing, kind of scientific, you know, work related but I was really just a cleaner and Simon was, not to put to finer point on it, Simon was a rocket scientist and I didn't really want to look the idiot that I felt, how the hell could I know what made the robot touch my breast. And another thing, I had never actually talked to a man about sexual things before and that was another major step.

Simon raised his eyebrows, he had asked a question and was expecting an answer but all I could do was to shrug my shoulders.

"Well, there are sensors built into the mannequin at various points, he is designed to interpret what you do to him to dictate what he is going to do to you, he wouldn't usually touch your breast unless it was exposed to him unless he was responding to your touch. Did you touch the robot's penis?"

I shook my head, Simon flicked through the pages of his notebook.

"I should really have found time to put my notes into a database so that I could search through them more easily, Ahh! Here it is, no, touching his penis would have made him rub you between your legs. Did you touch his chest?"

I felt my face blush, "I think it started to move its arm when I..."

Simon looked up from his notepad, his pen was poised in his hand ready to write down what I said and when I stopped he raised his eyebrows again, "Go on!"

"...Well, I think he moved his arm when I put my tongue into his mouth."

Simon scribbled into his notepad quickly and then he looked up again, "Well, that makes sense. How did it feel?"

"It felt okay."

"I mean, how did it feel compared to say how it feels when your husband does it to you?"

I felt my face go even redder, I whispered, "I can't remember that far back."

Simon moved in a little closer and placed his own left hand over my breast and he fondled it gently, "Did it feel like that?"

I shook my head.

Simon was far more aggressive and it was quite uncomfortable, "Did it feel like that?"

"No, it was between the two."

Simon tried again, his hand felt exactly the way the robot had felt and I felt a tell-tale spurt between my legs soaking the gusset of my knickers, I nodded my head and felt my hips rise in response to Simon's touch, "That's it, just like that."

"And was that the most pleasant of the three?"

"Ohhh! Yes it was"

"Well, I guess we've gone about as far as we can, thanks for your help."

"Have you finished testing the robot now then?"

"No but the next test would need you to be topless and I can't ask you to do that for me. It's not like this project is even one of our employer's projects; it's a private project for me."

I had a moment of panic, between Simon and his sex toy I had become turned on more than I could ever remember being, with the possible exception of my wedding night when I was turned on but my new husband was too drunk to perform and so that night was a total disappointment and it looked like tonight was going in the same direction.

"No, you can't ask me as an employee but couldn't I volunteer all the same?"

"Well, you could but I still feel guilty, I'd be obtaining a pecuniary advantage, I'd be using your services and the laboratory would be paying you for your time."

"Well, officially I've already finished cleaning the rooms I was told to clean. Your room is on my list of rooms that don't need cleaning, I only came in here because you asked for coffee."

"Well, because I'm a senior here, if I ask you to take your top off for me it could be seen as sexual harassment, it's a minefield isn't it?"

"Well, if I was worried about sexual harassment don't you think that your hand on my breast would qualify?"

It was Simon's turn to look uncomfortable now, his face reddened slightly and he looked down at the crumpled material of my overalls over the top of my right breast.

"Would it help you to finish your testing if I took my top off?"

"Well, definitely, if I can't finish testing tonight I'll have to give up for another eleven months, dismantle this and pack it all away. It does cause big problems though, as you've already seen, after eleven months it's almost impossible to remember what changes I made last year."

I took a deep breath and wriggled out of my overall smock, I was trying to do it without getting off of the bed, I had some small level of bravery given to me by the fact that I was taking charge rather than being told what to do by Simon and I thought that if I got off of the bed I might lose my bravery and run for the hills.

Simon wasn't looking at me as I undressed sitting on the bed, he was flicking back and forth in his notebook trying to find something. I stripped off my blouse and then stopped for a moment, "Do you want me to take my bra off as well?"

Simon was writing some new notes in his book, "There is a test we could perform with your bra on but it would take all night to test every function, so take your bra off please and we'll just test the major functions."

I dropped my bra onto the bed at my side, on top of my blouse and overalls. Simon turned to look at me, I was just about to cover my breasts with my arms but Simon's whispered "Wow!" made me feel a lot more comfortable about him seeing my body like that.

"Lie down please and press the green button when you're ready."

I took a deep breath and pressed the green button. The robot went through all of the moves in exactly the same way that it had done when I was dressed but this time its hand didn't feel the material of my blouse or overall top so it continued down over my chest and on to my right breast. The fingertips felt exactly like a real man's fingers, well, if possible they felt even more tender, more gentle and far less rushed and this time, because the sensors in the tips of the robot's fingers felt the heat of my body they didn't just palpate my breast they sought out my nipple and sensed that it was erect and the index finger and thumb started to roll my nipple as the robot's tongue came into my mouth and as it did its right hand came over my left breast and started to palpate it.

Simon reached between me and the robot and pressed against the robot's chest gently causing the robot to rise slightly from my body.

"You suddenly tensed up then, what was wrong?"

"Nothing was wrong but a real man wouldn't be able to hover over me like that and fondle both of my breasts, it would have to use one hand to support its body, just felt a little strange, like two men were here. I know, don't laugh, I know it's irrational of me but that's how it felt to me."

"No, you're exactly right; this is the kind of feedback that's priceless for me, the whole point of this project is to help women who have problems with sex and realism is the most important thing. I'll make a note to have the mannequin place his left hand on the bed at the side of your head for the next test so it feels more realistic for you."

"That would feel more realistic."

"My problem, like most men, I'd be happy to have sex with the PVC doll, I wouldn't need any response from the doll. At the clinic the men they treat are quite happy with the doll or even an artificial vagina; they use real women in very few cases."

"They have artificial vaginas?"

"When I started researching this project I found one manufacturer had thirteen different artificial vaginas from twenty-five quid up to one hundred pounds. When you're ready press the green button and the robot will go back to where it stopped, this time, when he puts his tongue into your mouth you touch his cock, are you okay with that?"

I nodded my head, trying not to look too eager; I settled back on the bed and took a deep breath before pressing the green button. It took just seconds for the robot to return to its last position and as I had gone off the boil a little it didn't find erect nipples and so it cycled through the palpating and fondling phase as it kissed me, when my nipple grew enough for the sensors to find it the robot began to pinch and roll my nipple again and its right hand started to fondle my left breast again and then it pushed it's tongue into my mouth again.

I remembered what Simon had said about touching the robot's cock after its tongue started to enter my mouth. I wrapped my fingers around the robot's cock as if it were a real man and the robot's cock started to grow in length and thickness, the robot started to gently hump its cock into my fist and as it did its left hand left my right breast and it dragged its fingertips down my body. The robot's touch was so soft that it felt like a butterfly's wings brushing against my bare flesh.

When the robot's fingers reached the waistband of my skirt it lifted slightly and then rubbed down over my skirt, it was zigzagging slightly and I heard Simon say, "It's mapping your lower body, if you let go of his cock he will stop, if you keep hold of his cock he'll try and find your pussy through your skirt, you still okay?"

I didn't answer, I just held on tight to the robot's cock, it took just two minutes for the robot to work out where my pussy mound was and it began to rub up and down over my pussy but still on the outside of my skirt. "Does that feel realistic, does it feel the way a man would explore your body?"

I turned my head, grinned at Simon, his face just an inch from mine and I whispered, "Perfect!"

"If you want the robot to continue through its program, you have to open your legs slightly, wide enough for the robot to feel that your legs have opened for it."

I didn't hesitate for a moment, even though Simon was monitoring what I was doing and how I was responding I opened my legs as wide as my skirt would allow as soon as the robot's fingertips reached as far down my cunt as it could go, I didn't want there to be any doubt in the robot's ability to sense that my legs were now open as wide as they could go.

The robot spent five minutes rubbing deep between my legs through my skirt, after two of those minutes the tip of his index finger began to vibrate gently causing me to jump slightly but it did give me an orgasm before it moved on to the next step of its program.

"He has just sensed the changes in your breathing and temperature, he's interpreted that as an orgasm, would you say that you were having an orgasm or rather enough of an orgasm for the robot to move on to the next phase?"

Because the robot had stopped working on my pussy and was moving its hands a little further down my skirt my tiny orgasm had already run its course and I was back on level ground once again.

"I think it could have lasted a little longer, I did have an orgasm but only a very tiny one."

"I'll have to try and work out a way of timing how far the robot should take you up the orgasmic scale."

"Can the robot hear me?"

"No!"

"Pity, if it could, it could listen for me to say something like 'Oh my God' or 'Yes' or something like that."

"You're brilliant; all it needs is a microphone adding in its head, the processor could handle some simple voice commands, I could add the word 'Stop' as well so you could have a rest if you can't find the red button."

"If you added the word 'Go' a woman with no hands could use the robot too, and go could be the command to move to the next step in its program!"

The robot's left hand had reached the hem of my skirt and its right hand was just starting to move down my body when all activity stopped, I almost screamed out in frustration. Simon was moving around me, the bed and the robot, he couldn't work out what had happened, it wasn't a safety thing or the robot would have backed off, as it was, I was trapped under the robot, his mouth against mine, his tongue extended into my mouth and one hand on my left hand side and his other between my legs.

Simon reached between us and prodded against the robot's chest, nothing. Then he pressed the red button, again nothing, I was still pinned to the bed.

"Hold on a moment while I plug in my laptop."

I was definitely cooling down rapidly and feeling very self-conscious laying there holding a robot's cock in my hand while its tongue was in my mouth.

"Nylon tights, I hadn't programmed in an algorithm to cover tights, I was told the women using the robot could have skirts, dresses, nighties or be naked but no one had mentioned the possibility of tights!"

Simon over rode the robot's protection and gave instructions to the motors controlling the robot's height above the bed, taking its body away from mine but the robot's tongue was still poking out, almost as if it were insulting me.

I rolled out from under the robot, "Should I take my tights off?"

Simon was typing commands into the laptop furiously, "Just a moment, would it be possible to get us both a coffee while I try and get the robot back on its rails?"

I pulled my blouse on quickly and picked up Simon's dirty mug, "They were wrong you know!"

Simon was a little preoccupied with his alterations to the robot's programming but he was half listening to me, "What do you mean, they were wrong?"

"I know a few women, friends from way back in my school days that don't feel sexy unless they are wearing stockings and from what they told me, their husbands prefer them to keep their stockings on during sex."

"Does your husband prefer you to wear stockings when you're having sex?"

I giggled, "My husband would prefer me to be wearing a City football strip if they win or take a bath in bitter if they lose."

Simon stopped typing and looked up into my eyes, he looked thoughtful for a moment or two and then burst out laughing, "The way City have been playing the last few years I'd have thought that you'd be stained brown by all that beer!"

I walked through the breakout room, pressed the button for a coffee and snatched the cup before it started to fill up; I only had the one mug and needed a second cup for myself. When I returned to the lab with two cups of coffee the robot was standing to attention at the end of the bed in its starting position, the cock that had grown in my hand was back to its sleeping state, I felt so deflated, it looked like my evening was over and I'd be left frustrated after all, mind you, the robot had given me an orgasm with its fingers through my skirt, tights and knickers, albeit a very little one.

I handed Simon his mug of coffee and when he saw that I had the plastic cup from the vending machine he tried to swap with me but I pointed out that he had two sugars and I had none so we would have to keep the cups as they were.

"Are we finished?" I said looking at the mannequin standing bolt upright.

Simon checked his watch, "Well, I guess it is almost midnight so if you want to call it a day I do have tons of valuable data already."

I almost jumped in too quickly with my, "Oh no, I want to carry on, I just thought that you had put your robot to bed because it's upright."

"No, but if you do want to carry on I think I'll need you to be totally naked, it takes so long to go from the starting position and I think I have all the data I need from clothed tests."

Well, this was about to test my resolve, when I stripped out of my blouse and bra, Simon was preoccupied and wasn't watching me under the robot but now he was just standing there drinking his coffee and looking directly at me.

I took a swallow of my coffee and started unbuttoning my blouse.

"You don't need to do it right away, you can drink your coffee first," '' ran through my mind.

I'd started taking my blouse off so I continued, as I pulled it off of my shoulders Simon's face turned into a broad grin, "Please don't be offended by this but, your breasts looked magnificent when you were lying down but standing up, they are even better."

I stood there topless and took another swallow from my cup, Simon was sipping his coffee as he stepped in closer to me and reached out with his free hand to feel my breast, "If I remember, you like your tits to be fondled like this!"

A shiver ran through my body, Simon fondling my breasts wasn't anything to do with testing out his project this time, he was feeling my breasts to give himself pleasure and me as well. I put my coffee down, there was no point in my holding it anymore as my mouth was busy with Simon's tongue searching through it.

Simon suddenly pulled away, "Sorry, I don't know what came over me, probably jealous of my toy having all the fun with you."

Simon's kiss had left me a little breathless, he was a much better kisser than the robot and a far better kisser than my husband had ever been. I could have picked up my coffee and started drinking again but instead I reached under my skirt and pulled my knickers and tights down, Simon was once again watching me with a grin on his lips. Another deep breath and my skirt was unfastened and it dropped to the floor.

"I can't believe how casual you are being naked in front of me like this, and by the way, the whole package is wonderful!"

"I can't believe it either; you're the first man to see me naked other than my husband."

Simon handed me my coffee and as I drank it he started turning me around, when my back was towards him he stopped turning me and pushed me over slightly so that my hands were resting on the bed, he put one hand on each of my buttocks and pressed his thumbs into my bum-crack, pulling his thumbs apart.

"You and your husband don't practice anal sex I see!"

"No!"

"Is it a religious thing?"

"No."

"You worried about the pain?"

"I never thought about anal sex, my husband and I have sex so rarely that I'd be better off getting something out of it, not that he goes overboard on my orgasm, just so long as he cums he's happy!"

"Oh, really. When I was married, well, when I was courting, my girlfriend and I would have anal sex during her fertile period so that I didn't make her pregnant. She couldn't take the pill and she was allergic to latex, she'd never be able to help me out with these tests. I wrote some algorithms for the robot to be able to help start a woman's path down the road to anal sex, his cock adjusts to suit the size of the hole he's expecting to go in."

I shivered at the thought of Simon asking me to test the robot's anal sex capabilities and gulped down the last of my coffee.

"Right, if you're ready just jump up on the bed, usual position, legs wide apart please."

I took up my position on the bed, my feet wide apart, much wider than the body of the mannequin.

"Press the green button when you're ready."

I did my usual, took a deep breath and had a little shiver as I pressed the green button.

"Is it too cold in here for you?"

"No, why?"

"Well, you shivered and your nipples are standing up like chapel hat pegs!"

"Not cold at all!"

"Oh, I see!" Simon laughed as his creation swooped down on me.

The robot grew over my body as it had before until it's mouth was lined up with my own, then a difference, the robot didn't reach out for the side of my face as it had so many times before, it's right hand slipped between my legs and it's left hand reached for my left breast. the robot slipped his tongue into my mouth and began to seek out my inner folds, the tips of its fingers were mapping my labia, searching out the opening to my vagina, testing out its boundaries and once it had the measure of my vagina he started to rub tenderly over my clitoris, it brought me to another petite climax before moving back down to the entrance to my vagina.

"Damned it, it stopped too soon again!"

"Don't worry; I'll sort that out for next time."

The robot pushed his index finger up inside of my vagina and as it probed in and out of my cunt his finger started to vibrate and he brought me into the foothills of another orgasm before it pulled away again, then it's fingers slipped out of my cunt and started to explore further down towards my anus.

"Just relax, he's mapping and testing, he'll feel around your bum-hole, see if there is any give in the muscle, you're so tight down there that it will move on to the next step."

I relaxed, two little orgasms had made me a little mellow and now all I wanted to do was get onto the main event.

"When it finishes mapping around your bottom it will take it's tongue out of your mouth and invite you to put your tongue into his mouth, if you do it will move onto the next step."

The robot was pressing quite hard against my anal muscle and managed to insert the tip of his finger inside my anal muscle, then he pulled his tongue out of my mouth, it was rubbing the tip of his tongue against my lips, trying to tempt me to push my tongue into his mouth.

I followed Simon's instructions and pushed my tongue into the robot's mouth.

"Stop, he didn't move on yet, don't..."

There was a sudden sharp pain in my bum as the robot shoved his finger right up my arse and as it started to fuck his finger in and out his finger started to vibrate and pulse inside my bottom.

"Remember the red button if you want the robot to stop, or push against his chest."

"Did your girlfriend like you fucking her in her bottom?"

"She loved it, she loved all sex, anal, oral, bondage, restraint, public, bukkake. She loved it all, she only divorced me because I worked such long hours and wasn't always as ready for sex as she was when I got home after a twenty hour day."

I tried deep breathing to help me relax and the pain in my bottom gradually left me.

"Do you want me to reset the program? If I don't, he will try anal sex with you after he performs vaginal sex!"

I stopped kissing the robot, "If you reset it will it go all the way back to the start?"

"Yes."

"If we just carry on and I don't want the anal sex, is that the end of the steps?"

"Yes."

"So, if we go that far at least it will be more of a test for the robot."

"Yes, that will be the end of testing for tonight, I'll start working on the alterations tomorrow, see if I can finish it all off by Sunday. If I'm that close to finishing and presenting to the customer I can justify taking an extra day's holiday."

"Well then, we may as well just carry on for now, save a lot of time."

Simon leaned in and kissed me under the head of his robot, "You're great, oh, and when you're fed up with his finger up your arse and you're ready for sex just take a hold of his cock like you did before but this time, guide his cock to your cunt."

I left his finger in my bottom a little longer, I was so relaxed now that there was little or no discomfort, it wasn't that I wanted to experiment with anal sex; in fact, Simon was the first person to ever mention anal sex to me but if the vibrations I was getting from Simon, the Robot might not be the only thing leaning over my body while I lay naked on a bed in the near future. And if anal sex floated Simon's boat, I may as well try it out in a safe way before I have an overly excited man grunting into me who wouldn't have a red button to turn him off quickly.

I took a hold of the robot's cock and pulled it down towards my cunt, the robot moved with me easily and as soon as I took a hold of his cock his finger slipped out of my bottom. Simon had moved away from my head and was watching what I was doing with the Robot's cock.

"Make sure that you put the tip of his cock into your vagina before you let go of it."

I kept my fingers around the cock until I felt his cockhead entering my cunt, then I let go. The robot dropped slightly and he thrust into my cunt, when his pubic mound crushed into mine it stopped and then I felt his cock growing longer and fatter inside of my body. As the cock grew inside of my body I felt Simon's fingers around my bum, there was a coldness and wetness dribbling all over my crack and then a slippery finger eased into my bottom as the robot started fucking me with a very realistic and very human motion.

"Did it grow big enough for you?"

"Yes, well, it feels a little too big actually."

"Painfully so?"

"No, just feels very big inside but not painful."

"Well, for most women it's 'the bigger the better' but I guess most don't get to choose how big their lover's cock gets in them, I just had to guess how tight to make the cock in this phase, it will be thinner for the final phase, so don't worry about that."

I started to climb to another orgasm, 'Please don't stop too soon, please don't stop too soon!' kept running through my head, worrying that the robot would stop before I was satisfied was actually holding me back quite a bit. Until Simon pushed a second finger up my bum-hole, using the pulsation of every muscle in my body and the lubricant that he had pushed up there as the robot slipped his cock into my cunt.

I certainly felt two fingers working against the thrusting of the robot and all thoughts of the robot not getting me to the peaks of my orgasm were lost as my body started to buck wildly under the robot.

"If you want to be fucked harder just reach over his lower back and as he pushes down on you, you pull him down harder. I was already gasping through the kind of orgasm that my husband had never been able to take me too but I still gave it a try, just to test that the outcome was as expected.

The robot seemed to go wild, not only was it thrusting harder into me but it also went far faster, driving me to ever higher heights of climactic power. I couldn't understand why the robot was still going so long after I had begun to climax so powerfully.

"I removed the automatic stop function while you were making coffee, if you want to take a break just push up against the robot's chest, it will pull out and rise up slightly and wait for the next instruction. If you want it to fuck you some more take his cock and put it back in your cunt, if you want to move on to the final step you'll have to French kiss it again."

I was covered in a film of sweat from the exertion of orgasming so much and was gasping for air but I managed to prop myself up on my elbows and look down my body to where Simon was still playing around my lower rear end, I managed to twist out from under the mannequin to get a better look at what Simon was doing to me, I had felt him force a second finger up my bum but I was totally surprised to see that he actually had three fingers in my arsehole and he was twisting his hand around to stretch me in a circular motion.

"You want the robot to fuck you some more or are you ready to try the last phase of the program?"

"I'm ready to move on."

"Reach up, put your hand behind the robot's neck and pull him down, when his lips line up with yours kiss him and push your tongue into his mouth and remember, for God's sake relax and just let things happen."

Simon poured more lubricant over his fingers and pushed the slippery liquid up inside my bum. I settled back under the robot and hooked my hand over his neck, even just gentle pressure made the robotic body lower down on top of me, I locked lips and pushed my tongue into his mouth.

The robot's arms moved down my body, his hands slipped under my calves and he began to lift my legs, just behind my knees and pushed my knees upward and apart. He then lowered his midsection and Simon's fingers slipped out of my bottom as the robot began to rub his cockhead in a circular motion around my backside, zoning in on my recently stretched anal muscle.

As soon as the robot's cockhead dipped into my arsehole he stopped circling and pushed slowly downward, he was sliding into my arsehole at about a tenth of the speed that it had thrust into my cunt. It took several minutes for him to press his pubic mound against my buttocks but as soon as it did it stopped pushing and then spent a moment growing fatter, not as fat as it did in my pussy but it did grow.

Once the robot had filled my arsehole it waited a few moments and then started to fuck me slowly.

"What does it feel like?"

"It's a little painful but then you did half the work for it with your fingers and the lubricant."

"Yes, but if I hadn't done that the robot would have compensated and just remained shorter and thinner, the important thing is, is it being gentle enough while it's fucking your arsehole?"

"Well, I'm no expert but it feels okay, just a little funny doing it in that hole that's all."

"Well, I've gathered all of the data that I need, you can stop as soon as you like, it's just that the robot's cock will keep getting fatter and longer the more that you get used to it, and it can grow almost as big as a horse's cock if you leave it fucking you for long enough, so it is up to you to choose when to push the red button."

"How big is his cock at the moment?"

"Not quite as fat as mine yet."

"Do you prefer a tight hole or a loose one?"

"Tighter is better."

"Well, I'll stop now if you'd prefer a tight hole to use."

I realised what I had said, it was the first time in my life that I had ever offered any man any kind of sex. Even with my husband I had been totally passive sexually, I had never refused him but I had never been so turned on that I had ever asked him for sex and here I was offering Simon, almost a stranger the option of using my anus for sex if he wanted too. Okay, I hadn't asked it straight out but the way I had said it should have left little doubt in Simon's mind that I was offering him the use of my bum if he wanted it.

I hit the red button and the mannequin retracted his undercarriage as it were, it's cock slipping out of my arse with a loud 'Plop' sound and the robot started to return to the start position, standing upright at the foot of the bed.

"Were you hinting that I could fuck you up your arse if I wanted too?"

'Thank god that he got the hint!' ran through my mind as I nodded my head. Simon's face almost split in two, in the biggest grin I had seen so far, as his trousers and underpants hit the floor at the side of the bed. Simon copied the position that the robot had taken, it was obviously his favourite position and so it was the one he had programmed into his robotics program.

Simon hurt me a little as his cock entered my bum, he was right; his cock was fatter than the robot's cock had reached by the time that I punched the red button.

"I'll apologise in advance but it has been a very long time since I had sex and you are far tighter than my wife was so this won't last very long."

The robot may have been in the same position as Simon but when it came to the anal sex, Simon had the robot beat and within seconds I started to climax but I didn't get far up the climb before I felt his seed spurting deep into my bowels and his cock slipped out of my bum, expelled as it softened by my anal muscles.

"That was different; it felt totally different being fucked up my arse by you than the robot."

"In what way?"

"Well, even though it was all over a bit quick, you did manage to get me close to an orgasm and the robot was doing me for ages and I never got close once."

Simon looked worried, "There should have been no difference, the robot's movements are modelled on my own movements exactly, the only difference is that my cock is a little fatter, could that have been why you started to cum with me?"

"Well, to be honest, I think the extra pain from your thicker cock held me back a little. I think I was getting some pressure from your abdomen against my clitoris as you fucked me but the robot's belly didn't touch me there."

"You've been brilliant; I'm really surprised at how much help you've been and how calm you are when you're totally naked in front of me."

I blushed at the reminder that I was totally naked, mind you, it wasn't so bad me being naked while Simon had his trousers and underpants off as well.

"I think that with a little training you could get a job with my customer as a professional sexual therapist. It would help men with sexual problems to have someone like you fuck them and teach them how to do it properly. I think that you've saved me a month's work sorting the robot out, I think that I can have most of the issues fixed tomorrow, mind you, if I'm going to show the robot therapist to my customer on Monday morning I'll need a volunteer to test the changes on Sunday!"

I was still laying there naked on the bed with Simon's spunk dribbling out of my bum and I raised my hand, just like we did at school when a teacher asked for a volunteer.

Simon laughed, "The job is yours, jot down your mobile number for me and I'll send a text on Sunday when I'm ready for you to come in. I'll make sure that the robot is sanitised before you come in."

"He needs a name!"

"Well, the customer would normally give him one when they take delivery."

By the time I was dressed and walking home Simon was deeply involved with the reprogramming of his robot sex aid, it was two am and I was wondering if my husband would still be up and if he were would he get on my case about getting home late. I shrugged my shoulders, after sex with Simon I realised that my husband was far from a good lover and perhaps it was time that I re-evaluated how I wanted my life to go forward and if my husband would even be a part of it.

6,738 Words.

Click isabella-30-uk@hotmail.co.uk if you would like to comment on this, or any other story by Isabella.