Three and a bit years later
I awoke to an early dawn light coming through the high window. It was apparent that at some point during the night that someone had undressed me as I was totally naked. Even more apparent was the warm body lying behind me, its arms wrapped around me holding me gently making me feel safe. A phenomenon common to all boys of morning wood was in full flow as my little pecker was standing out proudly under the covers and I realised I wasn't the only one. Whoever was behind me had the same issue and I could feel a mostly hard cock nicely nestled between my buttocks.
I wiggled my butt a little relishing the feel of the meat so close to my virgin pussy trying to imagine what it would feel like to have it penetrate me and take my cherry, how would it feel to have that cock buried deep inside, the pubic hairs tickling my ass cheeks as the cock is thrust into me until finally it explodes and pumps its precious life giving fluid deep into me making me pregnant so I can give birth to its progeny.
All these erotic thoughts only served to make me hotter and hornier than before making me wriggle my ass even more against the hardening cock behind me. I felt the head separate my ass cheeks as I moved, inching closer to my goal. I tried to make sure that I wouldn't wake the owner of the cock that was mere millimetres away from fulfilling my hopes and dreams. Slowly did it proceed, I pulled my ass cheek with one hand to open myself further and I felt the head of the cock nestling against my tight rosebud. The person behind me stirred obviously enjoying the sensations coming from the head of their cock, I knew it was the doctor and I really wanted her the take me, it was her cock I desired inside me and it was her body I wanted to feel crushing me into the bed.
The pressure on my hole was driving me insane, I tried pushing backwards and at the same time trying to open my pussy to allow the head to penetrate me but I had no lube at all and my ass was dry. At that point my unwitting partner stirred again and woke up. Knowing immediately what I was trying to do I heard Caroll's voice
"you are too young to be enjoying my cock just there, I don't want to hurt you and you trying to get me inside you with no lube will result in just that.
"please doctor" I begged "please take my cherry, please put your big thing inside me and make me cum as you did the nurse yesterday"
"I love it when you call me doctor, even after all we have been sleeping together for three years" my hopes raised and then were dashed as I felt the wonderful cock being withdrawn from my cheeks, I tried to follow it with my ass to no avail and I whimpered. I was all set to have my ass plundered and fucked as I had seen her do countless times to other people whilst I watched or sucked or wanked or fingered my pussy. Caroll and I had been sleeping together ever since that night when I was first introduced into the world of sex, I was now 13, had a decent pair of A cup breasts with large areola a small 3 inch penis and a self lubricating ass.
Carol herself had performed the surgery once I had been producing sperm for about 2 months. It started as a mere dribble of semi clear fluid but quickly increased under the medication I was on following that first show. I could now produce 12cc's of cum every time and it was still increasing in volume. The doctor was impressed as she could only manage 15 on the same meds as I could and she was fully developed unlike me. I teased her that it was because she spent all her time fucking and they must be getting worn out by now.
The other children (all of us girls') in the same group were all progressing in the same fashion whilst the boys' were on different medication to increase the length of their cocks, their muscle mass and general physical fitness. We also outnumbered the boys 3 to 1 but Caroll said it was because a boy can fuck many girls a night and impregnate them all whilst a girl could only get impregnated once every nine months therefore we needed more girls than boys.
Our other therapies to create a place for a foetus to grow to term were a little hectic. It was centred around gene therapy taken from the few remaining genetic women, all of whom were past natural child bearing age anyway and escaped by default the terrible and inevitable death that would follow. My womb was progressing nicely, a useable cervix had been grown and nurtured, ultrasound scans showed the developing lining which was thickening on the bi monthly cycle designed for us. Instead of a period every 28 days ours was set at 56 days to increase our chances of getting pregnant in the first place. It was dawning on me slowly that we really were bred for 1 thing and 1 thing only, the continuation of the human race.
"you have a big day ahead of you today, its time to start your practical lessons in sex, now remember I know you have had more experience than the rest of your sisters but try not to show off too much..."
I promised and we ate a leisurely breakfast before leaving the private apartment and heading over to the teaching area.
To say I was bored most of the morning was an understatement, we started off with basic anatomy which I think all of us knew by now, there wasn't much point in going into basic female anatomy as there really weren't any genetic females left.
What was more interesting however was when we started to examine the newly made creations inside our own bodies. We looked at the mechanisms that made up our unique `lubricating system' noting the valve similar to a heart valve but much smaller which was inserted at the end of our semen duct into our asses. This valve would ensure no faecal matter would travel up the wrong way and cause infection.
We also examined the womb that was grown inside us, the new cervix that would keep it sealed until it was needed and the new ovaries that came from them. Our genetic code allowed us to produce 4 eggs per 56 day cycle with each egg having a life span of just a few days. The womb itself was set forward of our intestines with the cervix protruding into our anal cavity just above our semen duct which in turn was just above our prostate gland.
After lunch another member of the medical team was in our class and he had brought an examination table with him. The teacher informed us that if a suitable volunteer was forthcoming, the nurse would show us, through the use of an endoscope, exactly how these new parts of us reacted. In an effort to relieve boredom I raised my hand pathetically expecting to be shouted down only to find I was the only person willing to go through the procedure.
I was taken away by the nurse into the next room to change into the obligatory operating theatre gown and led back behind a portable screen that had been erected around the bed. Once I was settled comfortably I watched the monitor showing the endoscope's pictures. I will admit to being pretty turned on at this point and that fact was highlighted as I saw my erect penis through the camera view. I vaguely heard the teacher droning on about something which was not going to attract my attention under any circumstances. The nurse handed me a small brown bottle with a face mask attached to the top of it and instructed me to take 2 breaths whilst holding the mask over my nose and mouth. As soon as I did I started to feel a little light headed, flushed and my heart started racing. At the same time I also started to feel incredibly turned on and my cock jerked of its own accord. I so wanted to put my fingers into myself whilst jerking off but the gown stopped any thought of that, I could however pinch my nipples though to make me feel better. As I watched the monitor with the camera pointing straight at my pussy I saw it visibly relax and open a fraction as if welcoming the intruder into me.
Of course because I was looking to my left at the monitor I failed to notice the nurse reaching under my gown to caress my cock until I felt his hand wrap itself around me. Please bear in mind that I was 13 and permanently horny, ready to blow at a moments notice so I was very surprised that I didn't fill my ass with cum there and then, not that it would have taken much to push me over the top anyway. That little bit came soon, I was told to take another couple of breaths and I felt the nurse blow on the underside of my cock head. Put those 2 things together and I literally creamed my knickers, or I would have if I wasn't naked down there. I watched cum ooze from my pussy hole and a gloved finger smear my own juices around my hole and probe my pussy all in glorious Technicolor.
Something came into sight, it was plug shaped but with a tube leading from it off camera with a hole in the centre covered by a concave flap. I felt it being inserted easily, no doubt helped by all my cum and the nurse started pumping whatever was attached to it which had the effect of inflating my anal cavity, presumable so that people could get a better look at my insides.
Then the camera entered through the hole in the centre and I was suddenly faced with the sight of the interior of my ass. As a matter of course we rinsed out every day with an attachment in the showers so I was spotlessly clean inside, nothing nasty showing me up at all. The end of the camera started to move so that we could see different things instead of just what was straight in front.
I was fascinated when my new cervix came into view, it looked huge on camera but I knew it really wasn't. it protruded into my ass about an inch, was about an inch and a half across with a tight little puckered hole in the centre. It was flushed with blood and was pulsing slightly in time with the twitching of my cock. I flexed my cock and saw the hole squeeze tightly and relax until it was open a fraction, winking at me, I tried again and it did exactly the same, I tried flexing my cock and holding it but the hole never opened more than a fraction.
I didn't have any more time to experiment however as the view changed. I vaguely heard the teacher going on about my semen duct when I realised that I was looking straight at it, my cum was oozing very gently from it and pooling in the lower part of my pussy coincidentally running straight over a smooth raised bump which turned out to be my prostate. The effect of the prostate was highlighted when the blunt end of the camera was pushed against it and I gasped loudly, another little trickle of cum flowed. Through all this I was incredibly turned on, I was even taking the odd breath through the face mask which kept me constantly on the boil, I fully expected to cum again at a moment's notice such was the eroticism of the whole event.
The nurse asked me to take a deep breath through the mask as he was going to go deeper, it may feel a little weird as my cervix was opened for the first time but there was also a possibility that I would orgasm as this was the first time anything had been that deep inside me. I watched as the camera moved ever closer and felt the electric shock course through me as it made contact with the tip. It was so intense I struggled to keep control, my hands were now roaming all over my body, the gown was dragged up so I could gain access to my cock and my tight ball sack, I stroked and rubbed hard as I felt an impending orgasm, beautiful torture as I watched the camera view slowly spread my cervix, I could feel every micron of it entering my most sacred and sensitive area spreading my insides until I felt it pop past the restriction and into my womb ... I screamed my orgasm, I humped up and down the camera view shaking as I pumped yet more cum into my insides. Had the plug not been in me I am sure I would have soaked the bed with my sticky oozing ass.
I came down slowly and started feeling acutely embarrassed by my very public orgasm, everyone knew what happened and I dreaded seeing them afterwards. I could still feel the camera firmly lodged inside me as it was moving slightly with every breath I took. From the other side of the curtain I heard how we and genetic women differed. Instead of relying on a mans sperm to swim up a mucus stream produced by the womb, if we were to get pregnant it was necessary for the cock of the man fucking us to enter the cervix totally and deposit its load of cum there. In order for this to happen, a drug had been formulated that would relax the cervical muscles to enable a cock to enter us properly.
I felt the nurse withdraw the camera, causing another near orgasm, my god I was sensitive down there, and the camera view changed to looking at the outside of my cervix again. I felt the scratch of a needle being pushed into my upper leg and felt the cool injection as it flowed into my muscles. Once again I flushed as I had on the mask but even more so than before, my whole body slowly turned to fire, the deliciousness of it spreading up and into me. I watched in amazement as my cervix opened of its own accord and I realised that with the aid of the camera, everybody could see exactly where I would carry my children until they were born.
Once again the camera advanced towards my inner pussy, the ribbed shaft gently rubbing the walls of my cervical entrance as it entered me, each individual rib causing tidal waves of pleasure to course through me and I started bucking again, humping down trying to get more and more penetration, I needed to be entered, penetrated, fucked; every fibre of my being wanted to feel sperm pump into my cunt from a hard cock; the requirement to hold onto someone as they repeatedly shoved their meat into my body, to have sex but above all, to breed was more powerful now than it had ever been. I really don't know when my orgasm started or finished, it appeared to come at me in waves from the instant the camera touched me until I woke up on the bed to total silence.
The nurse had gone, I was curled up under a blanket on the same bed I had been examined on with my hair matted to my brow. They had obviously left me to sleep as I was totally alone, still dressed in my examination gown. I gingerly got off the bed, dressed myself and left the room. The clock in the hallway told me that it was after afternoon break and session 4 had started but such was my addled brain I couldn't for the life of me remember where I was supposed to be at that time. I wandered the halls until movement caught my eye in one of the classrooms. It was full of the boys.
Segregation wasn't really practiced in the centre with the exception of dormitories, each sex had their own, and intersexual experimentation was strictly forbidden. So with the exception of the odd nurse and Caroll I had very little contact with the more male sex and it was really a fantastical world that inhabited another realm of my consciousness. Until now that is ...
What I saw through the window of the classroom opened my eyes somewhat. Every boy seated there was totally naked, they were all leaning away from their desks and they were all stroking their hard individual boners. Some of them were truly impressive with the smallest being about 6 inches long with a decent girth. At the front of the class the teacher stood, equally denuded with his enormous cock dangling low with full balls. A nurse was facing away from me behind him undressing, I watched as his tight ass revealed itself as he stripped off his shorts, the tight puckered entrance catching my eye and his semi erect cock popping into view from between his legs. He too had a set of low hanging balls that looked like they were full to overflowing.
The nurse was obviously there as part of a demonstration as no sooner had he undressed and applied lube to his asshole he took up position over a platform at the front of the classroom, his butt high in the air. The teacher who was now hard as nails positioned himself behind the recumbent figure and offered his cock to the hole before him. I watched intently as the huge cock was slowly inserted into the waiting hole. Many of the boys were breathing heavily as they stroked their hard dicks watching this nurse take it like a man. In no short order his ass was full of man meat and the teacher was stroking powerfully in and out.
My hand had already travelled to my cocklet as I squatted just far enough to give me access to my own pussy which I was industriously fingering getting hotter all the time. I came quickly and my cum aided the penetration of my digits into my own pleasure centre, I knew I wanted to feel my cervix for myself for the first time and make the pleasure flow but my ass would not stretch far enough and my fingers were too short to reach.
A sound from further down the corridor caused me to panic, my ass clamping shut squeezing my fingers out. I ran back the way I came with my tiny dick still poking out from my knickers under my skirt and found myself back in my classroom still with all the paraphernalia from earlier. My heart was beating fast partly through almost getting caught and partly incredibly turned on by what I saw in the classroom. What exactly was the lesson supposed to be about??
Thinking back to the fucking I had so recently witnessed the tingle inside my belly grew again. Secure in my own privacy I returned to the bed, stripped completely and started to play. I knelt on the bed with my knees spread wide and my hand between my legs fingering my pussy. I could feel it open and close around my fingers loosening all the time, soon I had 3 of my dainty digits plunging in and out of my pussy. I introduced a fourth in order to try to stretch me out further, sitting on my hand to try to force my pussy open but it was going too slowly. I opened my eyes in frustration as I continued to bounce up and down and looked straight at the mask with the bottle attached. I remembered the wonderful sensations as I breathed in the fumes from the bottle and a second or 2 later I felt my pussy relax as my fingers inched themselves in. this was great, not only did this bottle make me hot, it also relaxed my cunt so that I could open myself up even further. I raised myself up and dropped my pussy onto my fingers again which went all the way in, I almost came on the spot. I still couldn't reach my cervix but it felt incredible having my pussy stretched. I started fucking my pussy with my own hand the tempo increasing all the time until my I was gliding up and down with ease, my orgasm coming ever closer but tantalizingly out of reach.
I sat up, folded my thumb against my palm and sat down slowly whilst taking a deep breath from the bottle, my pussy stretched to the limit as I felt my knuckles start to push past my sphincter one by one until finally my ass started to close up as my hand accelerated into me, my ass closing around my wrist. I started shaking uncontrollably, humping my fist now firmly inside my wet full cunt, my cum running freely and pooling inside me as my orgasm hit hard. My hand opened of its own accord and suddenly there was my cervix, I flicked it accidentally which sent my into another spasm of orgasmic bliss almost overwhelming my consciousness as I collapsed face first onto the bed, my fist still rammed inside me pulling at my pussy.
After a few minutes I came back to my senses, my ass feeling sore, full but incredibly content. I pushed my fist out with a pop and squelch, emptying my bowels of all of my cum into a puddle on the bed. I grew aware of breathing behind me, I looked over my shoulder to see Carol standing with her cock in her hand slowly wanking herself off. "that was quite a show, if only you were a couple of years older I would be fucking you right now, let me do something else for you though." She picked me up onto my knees and I watched her face as she started fingering my sloppy hole. She seemed thrilled by how open I was and soon had 4 fingers sawing in and out of my cunt, once again I was humping back to meet her thrusts into me my orgasm growing once again that day. I felt her fold her thumb over her palm as I had done and push slowly but hard. I just had time to grab a quick sniff from the bottle with one hand before reaching behind to hold her wrist as I pushed my butt harder, feeling her fist spread my pussy wider than ever, my pussy stretching to allow this latest intrusion and then finally the blissful sensation of her hand sliding gracefully into me. I lost control again as I felt her knuckles on my prostate and cervix at the same time, jamming my insides full of her fist.
Once I had come down from my latest orgasm she started a fucking motion with her fist, pulling against my sphincter before pushing back in and pressing on my cervix and prostate at the same time. I was by now on my hands and knees moving back in time to her thrusts, her other hand moved to my breast, rolling the nipple around and pinching the flesh, sometimes kneading my breast and squashing it into my ribs making me moan more and more. I loved the feeling when Caroll pushed her fist deep mashing my insides with her knuckles before pulling back out. Her hand was almost at the point of coming all the way out of my cunt before driving deep into me once again. She kept up her fist fucking of my pussy for at least 10 minutes, keeping my orgasm at bay by her tempo when she started withdrawing her hand totally leaving my insides devoid of her pleasure. She changed the shape of her hand to a spear, fingers straight and thumb over her palm and pushed back into me, straight away the tip of her index finger pressed right on the puckered entrance of my cervix causing me to almost scream with lust, a few more thrusts inside me and my opening was stretching around her digit, my body was writhing in ecstasy as her finger penetrated my womb. She held her hand steady and just pushed her finger in and out of my inner sanctum and my first multiple orgasm started. I was desperately humping her fist crying out to fuck me, fuck me, fuck me harder and my balls emptied everything they had into my pussy and still I continued to hump up and down, side to side, any which way to continue the sensations from my pussy and tits.
Finally I got control of my body again, I was lying flat on my tummy panting hard with Caroll's fist still inside me twitching occasionally. I felt her pull on her hand which came out of me with a very sloppy pop and my pussy slowly closed itself up again. My ass cheeks were soaked with my cum, my pussy entrance felt stretched beyond belief but oh so good at the same time. For the first time I felt well and truly fucked and a warm glow spread over me. Caroll came forward to kiss me on the lips, a slow open mouth lingering kiss of post coital love and I felt unable to move. I knew I would recover eventually, I was also keenly aware that whilst I had been having the time of my young life, Caroll had yet to be fulfilled. I weakly reached behind me and stroked her smooth thigh, moving my hand up to cup her cock and balls and slowly began to wank her off. As much as I wanted to feel her throbbing meat in my pussy, even I didn't think it was a good idea after the vigorous fist fucking I had just received. I reached behind me to my pussy to scoop some of my cum up and then spread it over her cock in long languid strokes. Caroll obviously appreciated it as she started to hump her cock into my fist wrapped around her. I kept this up for a while, occasionally smearing more and more cum onto her pole until she moved closer to my head. I knew what to expect and opened my mouth willingly, gobbling her cock head and sucking hard. Caroll's breathing grew harsher as I sucked her off, the taste of my cum on her making me hot again and I started humping the bed in time to the cock sliding in and out of my throat. After I had been sucking her for some time her breathing became more and more laboured and I sensed her orgasm was getting close. Sure enough she placed her hands on either side of my head and started to throat fuck me, her big cock sliding effortlessly in and out of my mouth until her balls tightened up underneath her and she thrust deep once, twice finally shoving her cock as deep as it would go and bucking with my nose buried in her flesh. Her cock was pumping even though she had nothing to come out as it was all ending up inside her pussy but that didn't stop the basic twitching of every cock on orgasm.
After what felt like an eternity we both came to our senses and realised that we were both satisfied, whilst I was extremely sore I was also perfectly content with my aching insides and basked in the warm glow from the memories of today's activities. We both dressed, eyes lingering on the disappearing flesh of each other's bodies knowing that we could go on for more but looking forward to the opportunity to continue our explorations in more comfort.
We walked hand in hand down the corridor to the lunch hall, grabbed a quick sandwich and retired to our apartment. We talked about what had happened over our meagre meal in detail, Caroll wanting to know how it felt to have something push into my womb, what were my orgasms like on her fist and finger and we talked late into the evening. It was by mutual consent that tonight would be a night for sleep as we were both quite worn out. I am not sure that I felt my head touch the pillow before I was asleep.