I whine a bit louder, because while I love the feeling of their gloved hands stroking my clitoris, touching the folds of my labia, and playing around the entrance of my vagina, I also desperately want them to provide me with the pleasure that they're denying me. I love the build-up of my orgasm before they leave me writhing and struggling to push myself over the edge; I try to imagine achieving it, and while they remain silent during the process, I think of the ways I'd like them to speak to me - calling me all the names I feel in the moment and commenting on my ridiculous state lying here at the mercy of their treatment and unable to resist. 'Medical slut; medical whore; look how wet she is; the little medical whore is loving this, her juices are dripping onto the floor; we're going to make you cum until you're screaming in pain and that little clit of yours is sore for the rest of the day; sluts like you don't get to be in control, so you'll cum for as long as we command you to' and right in the middle of all my desires, just as I think I'll achieve it... SMACK! My eyes burst open, the taunts forgotten, and I writhe as I desperately try to push myself over the edge of another ruined orgasm. I want to cry! They've used my body until I'm desperately horny and wet and now they're refusing to give me the very thing my body urgently needs. I try to scream against the dildo in the mouth and Dr Riley finally responds. 'Oh? Are you a little frustrated now? How unfortunate slut. Maybe we should try something different.' He then proceeds to remove the dildo from my mouth, and replaces it with a gas mask. My eyes go wide and I panic thinking that he's sedating me, so I start to struggle. 'Calm down, it's just some oxygen. Relax.' He begins stroking my cheek and I relax against his hand while the assault on the rest of my body continues unabated. I'm not sure how much more of this I can take but I'm grateful for my mouth's reprieve.

Amongst all of this, my anus is being drilled with dildos by Dr Ziman who is insistent that it must be penetrable. After pushing past my resistance with several large butt plugs and finding he was able to easily push them in and out, the tenacious doctor proceeded to insert several different sizes of dildos, beginning with a long and thin dildo before sizing up to wider and longer ones. With all the different sensations attacking me, it's been hard to concentrate on his actions but I can feel that he's sized up quite considerably and is pushing the dildos further and further into me while I'm being distracted by the actions of the other doctors.

'Gentleman, I think the medical slut is ready for some real treatment.' My eyes go wide at his suggestion that their actions so far haven't been real treatment as well as the implication of his words. 'Her anus has stretched sufficiently so I'm going to insert the fucking machine to see how she takes a good anal fucking.' I whine at his statement, partly relieved that he's not about to give me my first experience with anal sex but also frustrated because I know that he's waiting to ask for my permission to fuck me and only then will he let me orgasm regardless of whether or not I give him my consent. They proceed to set up the machine and attach a medium-sized dildo, which they place a considerable way into my rectum. 'Showtime, gentleman.' And with that he flicks on the machine and the dildo slowly springs to life and begins to move in and out of me and before long I orgasm. 'Success! She can anal orgasm!' I can see their eyes grinning as Dr Ziman increases the speed of the dildo and I get my first proper ass fucking. And... I have to admit to myself that it feels good... which leads me to start moaning and in that moment, I can see in my doctor's eyes that he knows that I'm his - a devious little twinkle tells me all I need to know of how our relationship has just changed.

He moves towards my head and takes over from Dr Riley in stroking my cheek as I continue to moan. 'There we go, that feels good doesn't it? I'm going to have some fun with you.' He increases the speed slightly and I moan a little louder, then I feel fingers surrounding my clitoris, stroking it, and bringing me nearer to my climax, but rather than stopping and denying, the fingers continue and within seconds I crash over the edge into a huge climax as my body attempts to rear up with the intensity of it. 'What a nice cum you had for us. You should try edging more often.' I just sigh in response, finally contented. But they don't stop, Dr Ziman increases the speed of the dildo slightly more and Dr Jamieson continues to stroke my clitoris bringing me to another climax not quite as big as the first. 'Such a good girl. But I think your vagina should get some attention now. We're going to fuck you hard and that little clit of yours is going to keep cumming for as long as I desire.' I moan in response as if the straps have restrained me both physically and mentally, rendering me still and mute except for my moans. I have no response for him, and though I know he means that the fucking machine is going to fuck me, a small part of me wouldn't object if he decided to fuck me, too. Not the others, only Dr Ziman, my doctor.