It had been five minutes since Eve had left the lounge and us and we had talked a little bit about ourselves and I had now shrunk back to my normal size after seeing Eve's tits push out her T shirt.
The tannoy gave out its ping.
'Randolph. Can you come to room one please.' I gave the other two a look and wondered why Eve hadn't come back and soon found out when I entered the room to see her leaning up against the examination table.
'It seems that Eve cannot have an orgasm without the help of a man,' Carol said without any preamble and I glanced at Eve and saw that smile on her face again as her tongue did its little dance over her lips. Of course this had an instant effect on me and I felt my cock become as rigid as it could get within the confines of the shorts I was wearing.
'I can see that you are more than willing to help out,' she said looking at the front of my shorts. 'We might as well kill two birds at once. Here, put this condom on,' she said, passing me a small packet.
'Won't you put it on?' I asked her with a smile.
'Certainly not!
'I will,' piped up Eve. I gave Carol a smile and got a scowl back. I turned to Eve and started to take off my T shirt and saw that she was doing the same and those lovely firm tits came into view. She got her shorts off quicker than I got mine off, me being somewhat hampered by my throbbing erection until I was fully naked in front of her as she looked down and smiled as she took the condom packet and quickly pulled the thing out.
'I don't need to see this,' Carol said as she got up and pulled the curtain across between us. 'Just pull out at the point of her orgasm and let me get my sample,' I heard her voice from the other side. Eve and I both grinned at each other as she now rolled the condom down over my prick.
'Here or the couch?' she asked, her hand still hold my throbbing cock in her hand.
'The couch,' I said, my voice sounding hoarse as I looked at the lovely body I was just about to fuck. She let go of me and went and stretched out on her back.
'I'm wet and ready,' she said and I didn't need any urging and quickly got on and between her legs. 'God, I'm going to love this,' she said as I moved and lowered myself down so that she could only feel the head of my prick nuzzle up to the opening to her body. 'Don't tease,' she groaned as she reached up and pulled my shoulders down towards her. The sudden movement caught me off balance and I fell fully on top of her, my cock sliding right up into her at the same time.
'Christ!' she gasped. 'It feels bigger than it looks. It's like being fucked by a horse.'
'You've been fucked by a horse?' I grunted as I began to move myself in and out of that lovely wet and hot orifice, getting up onto my elbows to add power to my thrusting.
'No, but you're the closest I've had to be called that,' she panted and I could see the sweat running off her forehead.
But as such had been my need to once again fuck a woman, I felt myself already beginning to have my surge.
'Oh shit! I'm coming already,' I gasped as I began to really hump myself in at her.
'No, no. Not yet! I'm not ready yet,' she cried, her fingers tightening on my shoulders.
'Too late,' I said between gritted teeth as I began shooting my semen into that condom before sagging down onto her sweaty body.
'No matter. You'll last longer next time. We've still got to give her the sample she's waiting for,' Eve said.
'That, we've yet to find out,' I said as I began to pull out, feeling her vaginal muscles striving to hold me there. 'Anyway, thanks for asking for me to help you.'
'The pleasure was all mine,' she smiled.
'Not all. I got to come, you didn't,' I said with a smile at having had my release. 'Now don't go away and I'll see if I can finish the job that I was called in here for.'
I pulled the curtain aside, not ashamed of letting Carol seeing me there stark naked with my condom clad dick still sticking out in front of me.
'That didn't work,' I said. 'I was too eager.'
'So I gathered from what I heard,' Carol replied.
'Well at least you've one sample here to start with,' I said pointing at my dick.
'Well take it off then,' she said with almost a snarl.
'How do I do that without ruining the contents of the rubber?'
'Oh for Christ's sake! Come here then and see how it's done and you can do it yourself next time,' she said, pulling some tissues from a box and coming round the desk. One hand held the shaft of my cock as the other hand pulled the bulbous end of the condom forward and gave it a twist to seal in the sperm before pulling the whole thing off of me. She then knotted the end and put the whole thing into a jar before getting out a label to put on it.
'There. You can take it off yourself next time,' she said.
'No. I'll get Julian to do it,' I replied.
'Oh no you won't. He'd enjoy doing it,' she said, and now I got the innuendo that he had made in the lounge, looking at Joe's groin. He was gay!
'What about me?' came the wail from Eve, still lying there on the couch.
'Can I have another condom?' I asked Carol and she silently passed me another crisp packet. 'Once more into the breach dear friends,' I quoted and Carol rolled her eyes at this as I turned and went and kneeled down next to the couch.
'It'll take me a few minutes to be up again,' I said to her as I leaned over and gave her a kiss. 'You do want me again?' I asked.
'Oooh yes,' she breathed when I released her lips from the kiss.
'Then be patient. It won't take me long,' I said as I began to kiss my way down her still sweaty body. The nipples of her tits drew my mouth down to them like magnets and fastened on one to suck and nibble. Her body gave out a tremble as I did this but I caused her to shake a little when my fingers found their way into her vaginal opening. She kept giving out little oohs and aahs as I worked on her clit before I replaced my fingers with my tongue as I'd worked my body round the bottom of the couch in the kissing of her body.
'Don't take too long in getting it up for I'm not far off coming,' she gasped and I was surprised to find that I was already up and hard because it actually hadn't started to throb yet, but it did now. So I quickly found the condom packet and got it out and rolled it down over my cock and shaft and got onto the couch with her.
'Now give me the orgasm that I want and what she wants too,' she said, her face towards the other side of the room. I looked too and as I slid into Eve, realised that I hadn't drawn the curtain back and Carol could see me actually fucking that lovely hot body beneath me.
What the fuck, I said to myself. I wasn't getting off from what I was doing to pull it closed and as she hadn't done so, kept up in my fucking of Eve.
'Yes! Yes!' she started to shout as she began to hump herself up towards my downward thrusts. 'I'm nearly there! Don't stop!'
I came then. My body going stiff as I shot my load into the condom as Eve hung onto my shoulders, still bucking away, literally fucking herself on my rigid cock. It was when she started to give out a small scream was when I pulled out and quickly got off the couch. My body all of a quiver as Carol moved over between her legs with some sort of spoon to collect these juices that even I could see now oozing out of the hole I'd just been fucking.
I went and flopped down in the chair as Carol scraped up what she could into this flat little plastic container that she held to the lips of Eve's vagina. I was still panting heavily at having just had my second emission within the space of fifteen minutes.
I watched Carol get up, putting the lid on this small container and came over to her side of the desk. I didn't notice Eve get up from the couch until she was suddenly there between my legs.
'You wonderful cocks man,' she said as she pulled off the condom from my prick and promptly put her mouth over the head and sucked on me.
'Eve! What do you think you're doing?' Carol exclaimed. Eve's head came up briefly from the sucking of my organ.
'Sucking the best thing since sliced bread. You should try it sometime,' and promptly bent down and engulfed me again. Her tongue roving all over the head as her teeth raked the flesh as she carried on sucking out what little residue was left inside me.
'Well that sample is no good now,' I said with a weak smile on my face as I pointed to the discarded condom on the floor, my other hand stroking the hair of the head that was giving me head.
There was with a big sigh from Eve as she finally gave up sucking on an empty tube.
'I've only been here a couple of hours and it that time, I've had the best bit of cock I've ever had, and in both places too,' she said as she smiled up at me.
'Well this is not really the right place to be doing what you have just done. And in front of me too!' Carol said.
'Jealous?' was the question asked, a smirk on Eve's face, and a quick glance at Carol made me think that she was, but I was to find out later.
Eve and I had gotten dressed and went back to our lounge and Joe's name was called out over the tannoy, and so he went off to give Carol his sample of sperm.
I went and sat down on the sofa as Dana started plying Eve with many questions as to what went on in room one. Eve had come over and sat on my lap as she gave out all the nitty gritty details of what the two of us had done. I had noticed that Eve's arm had come round my shoulders in a somewhat propriety display as though to say this man is mine.
'Shit! Dana exclaimed after hearing what we had done. 'She's gone and called Joe in first. Do you think I'll be able to get away with what you've just done?'
'Well with him already having given her a sample of what he has to give. He should be fit enough in a short time to take you on. Give it a try.'
'I will, yes, I will.'
It was only a couple of minutes later that Joe came back into the lounge.
'She wants you back in there,' he said to me. 'She didn't get a blood sample from you.'
'Oh,' came from Dana. 'I thought I would be next to go in.'
'It won't be long before you're called Dana,' said Eve as I was leaving the room. 'It only takes a minute or two for her to get some blood out of you, the vampire.'
That then became the nickname of Carol, spoken out of her hearing. The vampire. The one who takes blood from another as well as other fluids from our bodies.
I gave my blood sample and Dana went in and pulled the same trick as Eve and was able to have Joe fuck her to bring about the desired orgasm for the vampire to gather this coming to put into a plastic container for later examination and later merging it with samples of our sperm.
That became our modus operandi over the next two weeks. The girls insisting of having one of us men fuck them to bring about the orgasm that was required, albeit only every other day.
What with my Christian name and the fact that I nearly always had an erection, they started calling me Randy. Even Carol and Julian fell into the habit.
We had meetings between the four of us and Carol, the vampire, and Julian, for them to tell us the progress the laboratory was having with our samples and establishing the patterns with relation to our blood groups, all of us having a different one. Mine being A rhesus negative, though I now cannot remember what group the other three had.
Again, what they had actually achieved, went way above my head with so many technical names thrown in, gave up trying to make sense of it all. The fact that I was enjoying my time there was enough for me, in spite of having to give these blood samples, the rest was the bonus, read that as having sex with both of the two girls.
With all these patterns established, it was now the turn for the hormones to be given to us two men to see the effect on our sperm count and the reaction when it came into contact with the girls orgasmic outflow.
I had learned from the first test of the hormones in my body that I had an equal balance of both sexes, which was rated as normal. Joe, he told me, was slightly higher in the female side of things but not high enough to make any difference to his own body. I didn't catch what the girls quotient was.
It was during our fourth week that, well, I can only describe it as a cock up, though it wasn't taken seriously by the clinic or the staff, but it did change my life somewhat. Well, that's what guinea pigs are there for. To find out what can happen if things do somewhat go astray, but it is then that they start to learn more about the human body.
I haven't mentioned this before, but between what was the nurse's office, room one and room two, there were interconnecting doors so that the nurses could go from one to the other without having to use the corridor between rooms and our section of the clinic.
Dana had been called into room two and I was called into room one. She had been settled down first by Carol and then she came through to me. What Dana was in that room for, I don't know, but I was in room one for a shot of hormones.
The clipboard was on the desk and I was sat in the chair facing it. I was only wearing my shorts, No T shirt for I knew I was going to have an injection of these hormones.
I didn't see Carol fill the syringe and so didn't know what was being injected into me. I felt the small prick of the needle and wasn't quite sure if I felt whatever it was going into my arm. I did feel it being pulled out of my arm and saw her throw the syringe and needle into the basket they used for waste.
She had just picked up her pen to write down onto my notes on the clipboard when there came an almighty crash of metal things hitting the tiled floor in room two.
'Shit!' Carol exclaimed, dropping the pen on the desk as Julian came into room one from the office.
'What the hell was that!' he exclaimed.
'I don't know,' Carol replied, 'but I'll sort it out. You see to Randy here,' and off she went into the other room. I could hear some groans and assumed that Dana had somehow fallen off the examination table as Julian picked up the clipboard with my notes on it.
I didn't give any attention to what he was doing as I strained my ears to try and hear what was going on in the other room. Julian had filled a syringe and gave my arm a swab and then injected the contents into my arm. He then threw the empty syringe into the waste bin and got a fresh syringe and took a sample of blood which was transferred into a labelled bottle. These he noted down on the clipboard as Carol came back into the room.
'Silly bitch,' Carol muttered. 'How the fuck can you fall off a stable table,' and gave out a giggle at the way she had strung the two words together. 'Now where were we?' she said to herself as she picked up my chart.
'I've just finished taking the blood sample??'
'But you've put down a hormone injection too!' she interrupted him.
'Yes. That is what is on the chart to give him,' he replied.
'But I'd already given that to him!' she exclaimed, her voice rising.
'Well it wasn't recorded on the chart,' Julian cried back at her.
'I was just about to do so when Dana fell off the table,' she said.
'How was I to know that you'd already given him one.' A comment I had to smile at, not knowing what the complication was that had just occurred. 'You just asked me to carry on, and so I did. It's not my fault that he's had a double dose!'
'Oh shit,' she sighed. 'Go and see to Dana while I try and think this out,' she said. Julian gave her a withering look as he went through to room two.
'Oh shit!' she said for the second time and got up from the chair she had sank down into and went through to what was their office. I followed her through as she went and leaned against one of the walls. 'I'll have to tell them,' she said to me, and I could see tears forming in her eyes. I quickly moved over and took her into my arms as she began to cry. 'I'm sorry,' she sobbed onto my shoulder.
'Sorry for what?' I said softly into her hair, smelling the shampoo she had used.
'A double dose of the hormones, that's what. We don't know what the reaction might be. We know with one, but not two,' and began to cry again. I held her close to me and even though she was sobbing on my shoulder, my body was reacting to having a female in my arms. My cock had risen up fast and was now a hard lump inside my shorts as I was now pressed up hard against her.
'Then don't tell them,' I said, still pressing my body up against hers. 'I won't, and they might just think that it was my own body reacting,' and then I kissed her. Not just a kiss, but one that had meaning to it. Her tears were wet on my cheeks as I felt her start to respond to the kisses I was giving her.
'You'll not tell them?' she asked in a whisper as we broke off the kiss.
'No. It'll just be between the two of us,' I said, as I began to unbutton the white coat that she was wearing. 'Do I stop what I'm doing?' I asked softly as I carried on undoing another button. 'You can feel that I would like to continue. Will you let me?' I had by now, the top half of her coat undone and I slipped my hand inside to find that she wasn't wearing a bra and I had a handful of tit with the nipple up as hard as a rock.
'Yes Randy,' she whispered as my hand was moulding that breast in my hand. I then undid the rest of the buttons and found she wasn't wearing panties either and didn't stop my hand from going down over her Mount of Venus. She gave out a gasp as my fingers entered her and I felt her give out a shudder and my fingers suddenly became wet with her internal lubrication.
While my hand was moving up and my fingers entering her, her hand had gone down the inside of my shorts and found what had been pressing against her.
'Oh Randy,' she sighed. 'Yes, yes.'
I quickly let go of her and shucked off my shorts and moved back in close so that she could feel my hardness up against her stomach and gave no resistance when I lifted her up so that my cock slipped in between her legs and as I lowered her back down, my cock found its own flight path and followed the trail of the juices that were coming from her.
The strength had been within me to lift her up into this position and now she was sliding down the wall and onto my throbbing cock as it slowly filled her, accompanied by the groans she was giving out at having it enter her. There came another big sigh as she could not get down any lower and was now being supported by my cock that was fully inside her and the strength of my arms and legs to hold her up like this.
'God. I drooled the first time I saw what you've got, and she was right. I was jealous of what she was getting and all I could do was sit there while you fucked her instead of it being me.'
That was about all the breath she had left in her as the calves of her legs came to rest over my hip bones, her arms over my shoulders, to hang there, impaled on my erection hard up inside her. It was fucking her in this fashion up against the wall that told me the true meaning of a knee trembler as I humped her up and down on my shaft. I also found that I wasn't as fit as I thought I was as I had to carry her whole body weight basically on the strength of the cock I had up inside her
While she was hanging on to me giving out a groan at every upward thrust, I was hanging on and hoping that my legs would hold out. I knew when she was getting close to her orgasm for her legs tightened themselves around me and the sweat was now pouring off of the both of us as I fought to hold myself back until she let go. Which thankfully, wasn't long as she suddenly took a wrist into her mouth to stifle any noise as she began to shudder on me. This triggered me off to let go and I began pumping my seed into her.
As the surges of semen came pumping out of me, I gave a thought to the fact that I wasn't wearing a condom and just hoped that she was taking the pill. I didn't give voice to those last thoughts as we came to a halt, both our chests heaving in unison as we fought for breath. Her breasts nicely welded to my chest as they moved in rhythm to our need of air.
Slowly, oh so slowly, her legs started to slide off my hips and I then unlocked my knee joints and bent them so that her feet could touch the ground and I was able to slip out that wonderful hot cavern that my dick had been excavating. I literally staggered for a moment before being able to stand up straight and put my arms around her again and kissed her deeply.
Now I had already fucked both Eve and Dana quite a few times over these past few weeks, but this was the best one of the lot and hoped that I would be able to have her again, but lying down this next time. My mouth spoke before my brain was really in gear and out came what I had just been thinking of.
'Oh Carol,' I breathed heavily into her ear. 'Let's do this again soon but in a more comfortable position.'
'Yes Randy. Yes,' she breathed back. This we did do later, but it was something of a struggle for me as you will find out later.
We broke apart for me to get my shorts back on and for her to get the buttons of her coat done up properly. Her hair was in a bit of a mess but her face had that same shine I'd seen on both Eve and Dana as well as that of my late lover, Sheila. An expression of delight and a somewhat triumphant gleam to the eyes as though they were the conqueror and not the vanquished. Even though it had been me that had forced us in a manner of speaking into having sex, I got this nagging doubt that it was I who was the victim in this assault between us.
But it was honours shared for she had said that she had wanted me and I had made it known that I wanted her, so it was merely an honourable draw between us. She went off to see how Julian was coping with Dana and I went and slipped into the gym and had my shower in there, not wanting Eve and Joe to see me in the sweaty state I was in. So I'd now fucked all that I knew except Julian, and didn't think that I would with him, or Joe if it came to that, but I was wrong.
I felt quite normal that evening and I even accepted the advances of Dana that evening, and so when Joe disappeared into Eve's room, I took what was offered and fucked Dana there on the floor of the lounge.