Please bare with me through this prompt, if you do there may be a cookie for you at the end.

Recently, the military has been funding a lot of experiment around the human ability to withstand extreme conditions, to find out at what point our mental barriers would begin to crumble and the brain would become overpowered. My college is part of this research program, and I've signed up for it, for the 2 extra credits and the 10$/h sallary it would pay. I don't know what exactly it would end up being, but how hard could it be, I'd probably just have to answer some questions on a form.

In these tests, human sensory inputs get pushed to their limits and the neural response to it is being studied. Of course everything is very heavily monitored and there are many safety protocols in place, since overstimulation for a prolonged period of time can have unforeseeable, possibly irreversible consequences...

I get an email about the details of my part in this, I'd be part of the group where the effect of sexual pleasure is measured (let's not question why the military is funding that particular field). I'm a bit flustered by that, but I guess it's better than the guy I read about who had to endure 36 hours of VR horror.

I get to the laboratory and everything is already set up and the assistant guides me through the process. I'll lay on a gynecology chair, nude and strapped down to it. I'll have electrodes attached to my skull and in key places around my body to measure brain activity as well as bodily functions. The test will last for at least 24-36 hours under good conditions, so I will be given nutrients and hydration intravenously, and I'll wear a catheter. Once on the chair various sex toys will be inserted and swapped out automatically by a robotic arm. There will also be a selected assortment of pornography playing on a screen right above me, since previous attempts showed much clearer results with this added visual stimulation. They are going to measure the effects of climax, they will try to keep me there as long as possible, and they'll look into the effect of multiple orgasms on my brain activity. It will turn off automatically once a specific kind of brain activity surpasses some key point. I might experience hightened libido for a few days after the experiment, but they assure me everything will return to normal after about a week. So I sign a few papers, then get ready for it.

I get on the chair, the straps get tightened, making it impossible for me to move my limbs, torso or head, my legs spread wide. Once the last person leaves the room and they go behind the one way mirror the lights turn off and I hear the machine jump alive. The screen turns on and softcore porn starts playing and I feel a vibrator find my clitoris. I start moaning, soon forgetting that I'm probably being watched.

The toys cycle through, one hour I'm getting double penetrated, then just my ass, then my clit gets terrorized. Soon I lose all track of time. In the first stage I am being brought to the edge and not allowed to cum for what seems like an eternity, once I start begging the machine switches back and forth between gagging me and deepthroating me. After only 2 cycles (each lasting 45 minutes) the machine is able to accurately tell when an orgasm will occur and is able to force me to suppress it at the exact moment that will make it the most agonizing.

But eventually I am allowed to cum, which marks the beginning of the second phase of the experiment, which has been going on for 23 hours now, way past behind planned schedule. But now, instead of begging to be allowed to cum, I'm forced to cum endlessly. The second phase lasts a whopping 120 hours (5 days). I am in a sort of pleasure coma throughout most of it. Half asleep, half awake, but always cumming, on average 1 orgasm every 2 minutes, the machine counted an estimated 3600 orgasms.

It's obvious something didn't go as planned. On later review one of the lead scientist finds out what happened, the intern who had done the pre setup had made a small, but grave mistake during calibration of the sensors, messing up the decimal values. Once they loaded one of the scans with the values correctly recalculated it was obvious what had gone wrong. Instead of triggering the shutdown sequence after 1% fluctuation in relevant brain activity it only happened after 1000% fluctuation. In laymen's terms, my brain had been reprogrammed. Sexual pleasure is now almost as crucial to my survival as oxygen. Without it, my brain will shut down slowly, recovery will become impossible and I will eventually die.

I'm brought to a psychological institution, in hopes that they will be able to help my brain revert to it's old programming. They have to give me special underwear that constantly stimulates my ass, pussy and clit, after a few tests they see that my brain maintains functionality with an average of 1 orgasm every 10 minutes.

Within half a year they are able to teach me to walk again, though that's incredibly exhausting for me, crawling comes much easier and more naturally. They also manage to teach me to eat on my own mostly, though there was a very close knife-in-pussy incident (it's a long somewhat phallic shaped object, what else should it be for??). But aside from these basic functions, they weren't able to help much more.

My attention span is pretty much non existent, during their attempts to teach me to read, by the time I could recognize and identify the letter B I'd forgotten the existence of A. My attention span did seem to be coupled with my number of orgasms per time unit. Both too many and too few had direct consequences for my mental faculties, so a good average had to be found. Some days it's 1 per 5 minutes, other days I can go close to half an hour between orgasms. The best way to find out if it's too much is to test my responsiveness. If I stop responding to basic things like hearing my name, it'll have to either be increased or decreased. A big issue here is that I cannot be trusted to self regulate. When using dildos I would eventually tire out and that would keep me regulated. However I could not be trusted with the controls of a vibrator, because I would always without fail make myself pass out from the intensity. While early humanoids evolved to hunt and gather food, I very soon evolved to mastering pickpocketing and being able to get my hands on the remotes by any means necessary.

My speech did come back to some degree, though since I'm unable to form complex thoughts, my sentences are very simple, most no longer than 2-3 words. One strange effect of the treatment was my skins sensitivity. Clothing will start to itch like hell, and underwear is an absolute no go. The one time they put me in a bra I just started running into the wall over and over to make it go away, until they took it off me again. But they also found out that very soft fabrics are mostly tolerable, stuff like sundresses. But still, I'm happiest when I get to be naked. One interesting development during my time there were my social skills. Humor and sarcasm are completely lost on me, remember my brain was reprogrammed from being able to live as part of a society, to seeking out and getting sexual pleasure. So pretty soon I knew how I could get the different caretakers to give me what I wanted, I knew their work schedule by heart and every day I acted in a specific way to appeal to the caretaker assigned to me that day.

Eventually the therapists conclude that they can't help me anymore, what I need now is love, and that's not something they should provide here - even though a few of the caretakers did grow irresponsibly infatuated with me. But they had learned enough that with a good support system I'd be able to survive in a regular home, so finally I'm able to return home. Of course I can't take any regular job, my old dream of becoming a business manager has gone up in smokes. But my family fought heavily in court and sued the school and military for millions and won (the visual of the beloved, so innocent, cute, bubbly business major now humping the corner of any table she finds is so grueling, no jury was willing to show any mercy to the institutions that turned her into this.)

I hope you liked this fever dream of mine. I hope it's obvious that this is 100% based in fantasy and only a product of my fucked up mind. From this backstory we can go many ways. We could play out the initial experiment, perhaps you're one of the students tasked with watching and studying me throughout everything. We could also play out parts of the therapy afterwards, there could be some cute clumsy scenes mixed in with intense begging until every male therapist has unloaded inside me, or getting to know one of the caretakers who had grown more fond of me than he should've probably allowed to happen. Lastly, my favorite part, we could play out what happens when I get to come back home. I would have to be under constant supervision and the house would have to be sex-addict proofed. I will also try to fuck any cock, I don't care who or what it's attached to, be it the family dog, a doorhandle, or my father/ brother. But throughout all of this, my humanity would show through in rare occasions, when I recognize the people who put up with me, care for me despite their own discomfort, and love me unconditionally. Another arc could also be that you open a brothel with me - I'm helplessly sex crased and already fuck anything that'll fit inside me, why not profit from it?

There's a plethora of kinks that can be fit into this. My personal biggest kinks involve anal, toys, giving head, free use, humiliation, public play, sleep play, bondage, bdsm, incest, wardrobe control. But those absolutely aren't all of them and I'd love to hear what you'd like to incorporate. Only things I'd prefer to steer clear of is feet, impreg and rimming.