I am Emma 26 and this is one of my fantasies.
In hospital laying there I'm given another injection to settle me and relax me even more. The doctor explains that soon I'll be taken down to the examination / treatment room. I'm told to change into this gown, you know the type that does up behind you and have nothing beneath it.
I was here after replying to an advertisement for sexually active women between 20 and 35 to help with medical tests in return for substantial payment. Needing the extra money I replied, and having to spend 4 days there my family thought I was away with a girlfriend.
A nurse wheels in another bed that I'm asked to lay on and they take me down in the lift to the examination room. As we go through the door I'm feeling sort of weird, nice and out of it weird. The nurse put an oxygen type mask over my face and told me to breath deeply. My body felt wonderful, but soon I realized that I was unable to move but still quiet conscious and aware of what was happening.
My legs were spread wide apart and secured to stirrups then raised quite high, my arms and wrists secured above my head. Then the gown was removed and a small sheet placed over me.
As I lay there I became aware of my arousal building within, I was feeling that hot feeling you get. Another doctor came in and clear cup type things we put over my breasts, they were connected to hoses that went behind me. Then a suction began which cause my breasts to be sucked further into these cups. It sort of had a pulse action sucking on and off gradually making more and more of my breasts fill the cups. It felt really strange having my whole breast sucking into these cups.
Before they would proceed they told me I had to have my whole vulva shaved again completely. Laying there with my breasts in these suction cups and being shaved only added to my situation. I was getting more and more aroused every moment.
I was wiped clean down there and dried off, as the doctor sat down between my legs to take pictures and make notes on the level of my arousal. Any girl that has had someone shave them would know that by now I was well and truly lubricating quite a lot.
Then a machine was wheeled in and placed between my legs where the doctor had earlier sat. I couldn't see all of it but guessed what it was to be used for. It was all set up and they told me, I would be left alone for a while why the tests were done. They said it had cameras both outside and in the tip that would photograph my arousal as never before done. The whole thing was to be filmed for future medical studies and students.
I lay there so aroused I was leaking, I had my juices running out of me I could feel it. Then slowly the machine inched forward placing the tip between my lips. Ever so slowly it eased itself inside till it was fully penetrating me. The it began, it began moving in and out slowly at first, building the pace till it was fucking me really fast. The tip was actually like a dildo with a shaft attached to it. It worked itself up till it was going so fast, faster than any guy has ever done it to me. It was the size of a normal to thickish dildo and the same sort of length as a cock I think.
It was relentless continually hammering into me, not like when a guy does it he slows down sometimes. This kept going and going till I came, and couldn't control myself. I was moaning loudly and trying to move back off it which I couldn't. It just kept going, making me cum and cum over and over. My pussy felt like it was on fire, I was so horny so wet I couldn't stop my orgasms.
Then it began to slow down till it was just moving ever so slowly in and out of me. The doctor returned asking if I was ok, "god yes what do you think". He then proceeded to put another suction device over my clitty.
"This will be fine just relax your doing so well Emma" the doctor said. "It is going so well we have great footage of an orgasm inside your vagina We just need a little more".
He left again and both my breasts and now my clitty were being sucked by this machine. My breasts were quite red and swollen inside the cups, god only knows what my poor lil clitty was like. The machine between my legs began again, moving faster and this time changing angles as it did it. My pussy was already throbbing from the first session and now it was even more intense with my clitty being used also. The dildo seemed different, then I realized it was actually changing size also. It was getting thicker and then a little thinner but every time it got thicker it seemed to get more thicker than before. Eventually I felt it get a lot thicker and realized it was. It was feeling really tight inside me, and I knew it was bigger than I had had ever before. My pussy was so wet so hot, I couldn't stop it I screamed out and came and came. My whole body just shook and my pussy throbbed and contracted around the thing inside me. My whole body was shaking and convulsing I couldn't control it. I was moaning and moving on it and eventually I think I passed out.