Klara screamed out to the empty room as her twitching pussy drooled endlessly. Today was Day 2 of the experiment she had naively signed up for, and she wasn't taking it any better than the day before. She sobbed and begged while mechanical hands manipulated her nether regions to stretch her pussy open and expose her aching clit to the feathers relentlessly flicking her button. Yet more feathers were strolling up and down her pussy lips at a maddeningly slow pace while Klara lay stretched taut on the laboratory table, losing her sanity.
Klara had been brought back to the lab and strapped to the same table as before at 6am sharp. Chloe had wasted no time before resuming the same experiment from yesterday - she needed the machine to hold Klara at the edge of her orgasm for as long as possible to gather enough data for her research. Chloe had been tasked with heading a team to develop a new method of extracting information out of enemies of the state during interrogations. She needed to use techniques that would leave no physical harm, and after a lot of brainstorming, she had settled on exploring the idea of edging.
Chloe was not one to lead from the back. She had been the first subject of her own experiment, experiencing the unbearable teasing and orgasm denial firsthand. After just one test, she knew that she and her team had struck gold. Torture was a strong word, but what she went through at the hands of her own team's creation was nothing short of it. The AI they had developed had only been able to keep Chloe on the edge for a maximum of just under an hour, so she was almost jealous as she watched Klara writhe on the table. Twelve hours. That's how long Klara had spent trapped at the edge of her climax, not including the break in between overnight. Twelve whole hours. Chloe couldn't even imagine what that would feel like; she had been completely broken by her creation within half an hour.
As she watched the feathers expertly stroke Klara's needy clit until she was just one touch shy of release, Chloe couldn't contain her excitement at the success of this experiment. The AI was finally ready for the next stage. Sure, you could argue that this new interrogation technique was already complete; no one would be able to last this long on the brink of release without giving in. But Chloe had bigger plans. A few hours of edging wasn't enough, she wanted to push her work to its limits.
As lunchtime approached, Klara felt the feathers slow down for the last time, coming to a stop while she eagerly awaited her hands being released. She had failed to get herself off the last time she was removed from the table, but felt like she was more prepared today. Unfortunately, Chloe had come prepared as well, and she walked into the room with something Klara recognised immediately.
"No no come on you can't be serious, please you can't do this- I need to cum please you can't-"
She had heard about chastity belts before, but had never seen one quite like the one her pussy was about to be locked away into. It was like something out of a sci-fi movie, with a range of sensors all over the inside. There wasn't much Klara could do other than scream in protest as her legs were released and the belt was locked in place. She had a sinking feeling that there was more hidden away on the inside of the belt, and she shuddered as she thought about what her poor pussy might go through without her being able to stop any of it. Chloe then released Klara from her restraints and led her back to her living space. As soon as she stood up from the table, Klara realised how lightweight and comfortable the belt was as it wrapped snuggly around her waist. At least she had one thing to be grateful for.
In fact, Klara had much to be thankful for, apart from the endless edging, of course. Inside the experiment room, she was reduced to nothing but a test subject, but outside she was actually quite well taken care of. She had been fed quite well so far and her living space was impressively large and well-equipped. Of course, none of this mattered to her in her current state of sexual frustration, and as she was walked down the corridor towards her room, Klara couldn't help but pull at the belt locked around her waist and try to squeeze a finger inside. Unfortunately, she found no space at all at the edges of the belt; it was as if it had been molded to her exact measurements. This didn't stop her from relentlessly attempting to stuff her hand inside though - Klara knew she just needed a few seconds of contact to finally go over the edge. Eventually Chloe had to step in and force Klara's hands away from her waist.
"The belt isn't coming off, Klara. You're not going to cum today."
Klara whimpered at her words as she struggled to deal with her unbearable need. It didn't help that Chloe had pressed her up against the wall while pinning her wrists to stop her from touching her belt. The submissive in her swooned as she stared into the beautiful woman's eyes. Chloe knew exactly the effect she was having, giving her captive a quick smirk before leading her to lunch.
Klara wanted lunch to carry on forever, but sadly she had to be taken back to the lab to continue her torturous edging. It was only after her arms were fixed in place by the restraints that the chastity belt around her waist was finally removed, freeing her aching womanhood. Her legs were swiftly restrained before the experiment resumed once again.
Klara was carried out of the room another nine hours later, with the chastity belt once again put on her waist. She could barely walk on her own as her legs quivered with desperation. After spending almost a full day forced to the brink of climax without release, Klara had lost the ability to think about anything other than her need to cum - even now she was subconsciously clutching at the edges of her belt to try and provide her pussy with just one touch.
Unable to take her hands away from her waist, Klara was fed and then taken to her quarters for the night. Now that her body had finally been given an hour to cool down from the edge, she managed to plead to Chloe once more.
"Please, I can't take this. I don't care about the money, just take this thing off me please. You don't understand, I need to cum."
Chloe understood very well what Klara needed. She had to hide her excitement at hearing her subject validating her masterpiece in this way. But now, it was time to see if Stage 3 of her experiment was complete yet. Could her edging machine actually compel a subject into doing anything?
"There's a fingerprint scanner on the right side of your belt. If you hold your thumb there for five seconds, it will give you an orgasm, but-"
Klara's eyes lit up as she looked for the sensor without listening to the rest of what Chloe had to say, but her hands were quickly held again to prevent her from making a hasty choice.
"Hold on, listen. You are currently in Stage 3 of this experiment. This stage lasts for a week, and then you'll be completely free to leave with the belt unlocked. However, if you scan your thumb and this belt makes you cum, you will be giving your consent to remain in this experiment and continue to Stage 4."
Klara's mind was still clouded with the thought of being so close to an orgasm, but she tried her best to put that aside as she contemplated her options.