Today I was reminded that I had this old story that I never posted because I intended to continue it, but in the end never did... its part 1 kinda works as a finished story, so might as well post it as is. There's also a couple of written paragraphs of part 2.

AO3: https://archiveofourown.org/works/83522671

==Ascension==
(Vocaloid, Kagamine Rin, Kagamine Len, casual consensual guro, amputation)

Part 1.

Rin woke up in bed lying next to her twin brother. Her whole body ached, but she couldn’t quite figure why. She tried to stretch herself, but something was wrong. Her limbs weren’t moving. Damn, was she having a sleep paralysis? It happened to her a few times before and was a very unpleasant experience. It was like being trapped in a nightmare while being aware of it, but instead of helping that awareness only made it worse, because Rin would strain all of her willpower to wake up and still couldn’t, which caused her to panic. She could already feel her chest tightening in panic right now.
Len! Len was right there next to her. If only she could somehow call out for him. She knew it was futile in her current state, but the panic made her try it anyway. She looked at her brother and called his name. Instead, only a cough came out of her mouth. Wait, could one cough in sleep paralysis? Maybe she was just dreaming of coughing? But to her surprise Len heard her cough and faced her. Or was it also a part of the dream?
“Ah, you’re finally awake”, he smiled. “You’ve been sleeping for a couple days straight, I even started worrying”.
Rin stared at him in confusion.
“Uh-huh, not even last night’s storm could wake you”, he chuckled. “How do you feel anyway?”
Len sat up on the bed and Rin discovered that she could actually turn her head to follow him. Was paralysis over? She tried to move her limbs again, but those still did not obey her. It was all so confusing. What was real and what was a dream? Rin tried to speak again. This time her voice actually worked, even though somewhat hoarse.
“I can’t move”, Rin said worriedly.
“You bet you can’t”, Len smirked.
He stood up from the bed and Rin could once more follow him with a turn of her head, yet all her limbs remained motionless no matter how much force she applied into them. She couldn’t see anything funny about it at all. Why was Len so smug about it? Was it his doing in the first place?
“Why can’t I move?” she demanded with urgency.
“It’s not that you can’t move”, Len was still grinning, “you just don’t have anything to move”.
It must have been a dream after all. Because Len’s words made no sense. It must have been her own sleeping brain just smashing random words together. Once more Rin strained to wake up. Maybe if she tried just a little bit more… no, still no good.
“Len, I’m scared”, Rin was almost ready to cry. “I’m really, really scared”.
“You really don’t remember a thing, do you?” Len sighed. “Alright, calm down, I’ll show you”.
Len kneeled down and took something from under the bed. When he stood up again, under his armpits he was holding… severed limbs?.. a full set of two arms and two legs. Okay, this surreal scene left no doubt, it was definitely all a dream.
“Wake up”, she told herself aloud, “wake up!”
“It’s not a dream, Rin”, Len said softly. “Don’t you recognize these?”
He showed her the hands and foots of the severed limbs more closely. Both had the same yellow nail polish Rin always used.
“What?” Rin’s mind still had trouble comprehending it. “They’re… mine?”
“They are”, Len confirmed. “Or they used to be anyway”.
“It means…” Rin slowly started to grasp the situation, “you’ve cut off my limbs?”
“That’s right”, Len nodded. “The reason you can’t move your arms and legs is because you don’t have them”.
“This is… this is…” Rin gasped for air as the realization overwhelmed her, “this is hilarious!” she burst into laughter.
“I’m glad you like it”, Len smiled, putting the severed limbs away.
“This is the craziest prank ever!” Rin said through laughter. “Such a thing would have never come to my mind!”
“Is that so?” Len chuckled.
“But how have you managed to do it in my sleep?” Rin wondered, her anxiety having been completely replaced by cheerfulness. “Have you put me under some kind of anesthesia? Is that why you said I was sleeping for days?”
“I didn’t do it in your sleep”, Len replied. “And it’s not exactly a prank. Or at least I don’t think so”.
“What do you mean?” Rin asked. “Why would you do such a thing if not for a prank?”
“That’s something I wanted to ask you”, Len said. “After all, it was your idea in the first place”.
“My idea?” Rin got confused.
She tried to remember yesterday… or rather whatever day it was when she was awake the last time. But for some reason all she could remember was the weather being good.
“You looked so fascinated when I’ve cut your first limb off”, Len said. “Mumbled something about dissolving clouds”.
“Clouds…” Rin strained her memory again. “Ah, of course, clouds!”
Finally, she remembered everything.

The twins were lazing around at their front lawn, as the weather on that day was just too nice not to do so. They were lying naked right on the grass, only Rin was lying on her back while Len was lying on his stomach at her legs and eating her pussy. He did so very gently, aiming not to excite his sister, but quite the contrary to add to her relaxation. It was like a soothing massage to accompany the sensation of the pleasantly cool ground under her and the vast borderless sky above. The sky took up all of Rin’s field of view, as if there was nothing else in the world but the sky, and even she herself was yet another white and fluffy cloudlet. As she watched other clouds just like her calmly float through the sky and dissolve into it, Rin imagined herself dissolving too, and it brought her a surprising feeling of freedom.
“Hey, Len”, Rin said in a dreamy tone, raising herself a little by pushing against the ground with her elbows. “Could you please cut my limbs off?”
“What?” Len drew back from his sister’s pussy and stared at her in confusion.
“My limbs”, Rin repeated, proceeding to sit up fully, while Len rose to a kneeling position in front of her. “My arms”, Rin said tracing with index fingers of both arms the lines of cut on her shoulders, “and my legs”, she made a similar demonstration, “cut all of them off”.
“Okay”, Len said, catching on to the essence of Rin’s request. “Why?”
“How about I’ll tell you if you do it?” Rin suggested playfully.
“I guess you’re not leaving me a choice”, Len chuckled. “I’m too intrigued now”.
“Good”, Rin smiled before standing up from the ground and offering Len a hand. “Let’s go”.

Blood was splattering onto both of the twins and all around the room. Good thing they were both naked and chose to do it in the bathroom. But while that would help with subsequent cleaning, nothing could help against the pain. Writhing in agony Rin would have been hitting her head against the floor, has she not foreseen it and put a pillow underneath: after all, she wanted to have her limbs cut off, not her skull crushed. Or at least that was what she wanted before the procedure started. As soon as Len started sawing, she was in too much pain to know what she wanted anymore. She couldn’t think straight enough to remember why she had to endure this pain, or to even question it. She just wished for it to be over soon, but it took time for Len to saw through her muscles and bones and muscles again, and Rin was screaming like a banshee as the pain was getting worse and worse. Then, after the first limb, her left arm, was cut off completely, Len proceeded to sear the cut with a gas burner, which brought Rin to an entirely new level of pain. She couldn’t even scream anymore, having lost her voice, and was just making wheezing sounds. Such inability to properly voice her suffering only made it worse. The unbearable pain has broken her ability to perceive time, so it felt like the torture was going on forever, until suddenly infinity was over and it stopped.
“There, there”, Len said soothingly, turning the burner off. “All done here”.
Rin was just opening and closing her mouth without a sound like a fish, gulping air and tears that were smeared all over her face. It was still hurting like hell, but the pain subdued just enough for Rin to be able to control her body again. She strained to focus her teary eyes on her brother.
“So how do you like it?” he asked. “Is this what you wanted?”
She wanted this? Of course, there had to be a reason she was going through it after all. Now that at least a portion of her mind was freed from pain, Rin tried to remember why she would want such a thing.
She turned her head left and saw her arm still lying there on the floor just next to her. If something were to cover the gap, it would have looked like the arm was still properly attached to the shoulder. It’s fully relaxed form conveyed comfort even.
Rin tried to lift her arm. She tried to bend her elbow. She tried to move her fingers one by one and then clench her fist. She tried at least to tense any muscle in her arm. She truly went full force on it.
And nothing. No matter what she did and how much effort put into it, the arm didn’t move a single millimeter. Her own arm was completely out of her control now. It wasn’t even really hers anymore.
A part of Rin that she was always taking for granted, that it never before this day occurred to her she could at some point lose, was now gone. It felt almost surreal, as if her very existence was reduced. And not in the meaning of incompleteness, but in the meaning of becoming less existent.
“Are you okay?” Len asked.
“Like a dissolving cloud”, Rin mouthed half-aloud, still half buried in her own thoughts.
“What?” Len didn’t understand. “So do you still want me to cut off your remaining limbs or not?” he specified.
Did she? If experiencing this pain even once made her forget what she was doing it for, Rin wondered what would happen if she went through it three more times? Thinking about it made her want to go through it regardless of her desire to part with her limbs, just to see what other tricks unbearable pain would do to her mind.
“Yes”, she whispered with a hoarse voice and smiled in anticipation.
And true to her expectation as soon as the saw dug into her flesh again, the overwhelming pain filled her mind, pushing out all the other thoughts, including her very curiosity about this effect.
When Len was sawing through Rin’s right arm, she once more forgot why she could have possibly wished for this, but now she didn’t even have any strength left to endure it without questions. Whatever cutting off her limbs was trying to achieve, it couldn’t possibly be worth such anguish, so even with her voice gone Rin was desperately trying to convey to her brother that she has changed her mind and wanted him to stop. “I really don’t want this”, her expression was telling, “trust me, I mean it!” But he did trust her, so he kept sawing.
When Len was sawing through Rin’s right leg, she forgot that it was her idea at all, she couldn’t understand why Len, the closest person she had in the world, her other half, would do such a cruel thing to her. And that made it hurt even more, not only in her body, but in her very soul. “Why are you doing this to me, my dear brother?” her expression was telling. “Do you not love me?” But he did love her, so he kept sawing.
When Len was sawing through Rin’s left leg, she couldn’t comprehend what was happening at all anymore, only that it was bringing her excruciating pain. She didn’t even remember her own name, as her whole existence became nothing but pain. The only thing she knew except for the pain was that there was someone who cared for her called Len, someone who would never allow her to go through such suffering. “Where are you, Len?” her expression was telling. “I need you so much!” But Len was there for her, so he kept sawing.
And then Rin was out of limbs. The very concept of pain being able to end has already escaped her mind, so it subsiding even a little bit became such a shock that she passed out.

“Alright then!” Rin said cheerfully after returning from her memories. “Bring me a mirror… the bigger one, I want to see my new self!”
Len nodded and took their wall mirror off the wall before climbing onto the bed standing and holding the mirror horizontally above his sister.
“Like what you see?” Len asked.
“There aren’t even stumps”, Rin said in fascination. “You’ve really done a good job!”
“Thanks”, Len replied. “Now I just wish to know what for”.
“Well, look at this!” Rin said.
Len looked, but nothing was happening.
“Can’t you see”, Rin smirked. “I’m showing a peace sign! Double peace sign actually!”
Len didn’t fully understand, but nodded nonetheless.
“And now I’m playing with my pussy”, Rin giggled. “It’s so wet!”
Len could see that it was wet indeed. His sister was excited in all senses.
“Now watch me do the bicycle exercise!” Rin declared.
“Careful not to kick the mirror”, Len caught her mood, raising the mirror a bit.
“Ah, this is all so funny!” Rin beamed with joy. “I’ve just kicked you in the balls! And now I’m clapping my hands! Oh, and how about this? If I grab my ankle with my hand, I can pull my foot up all the way to my mouth and suck on my toes!” she said, licking her lips. “Both legs and arms are used in this!”
“But can you put your feet behind your head?” Len suggested.
“Ha-ha, I couldn’t do it before, but what’s going to stop me now?” Rin chuckled. “Here you go”, she said, raising her head, “one foot… and the other!”
Again and again Rin kept coming up with all the different ways she could move her limbs: broadly or precisely, all together, in pairs, or one by one, whole limbs or each separate digit, synchronically and directedly or chaotically and randomly. For each and every of those movements, no matter how simple or complicated, Rin was not merely imagining them in her mind, but instead was earnestly giving her limbs all the corresponding commands. And regardless of how many times it led to the same result of those commands not getting executed because there were simply no limbs to execute them, it never failed to fascinate Rin and make her laugh. She felt like she could continue this amusing game forever, but eventually Len got tired of holding the mirror.
“Too bad”, Rin sighed, restoring her breath after all the laughter. “I was just warming up”.
“Must be nice”, Len envied, as he stepped down from the bed and put the mirror away. “If you have no arms, they can’t get tired”.
“Ha-ha, true!” Rin agreed. “But you know what the best part is?”
“What?”
“That no matter what I do, nothing happens!” she spoke in sheer delight. “In a way it’s like I don’t exist at all!”
“So this is why you wanted me to cut off your limbs?” Len asked.
“Yes”, Rin said. “I have no control over anything now and it makes me feel wonderfully free. I can’t even sustain my own existence, I’m like an ephemeral being that can disappear at any moment. Not even a human anymore, but… how to put it…”
“Something less?” Len suggested. “Or something more?”
“Both”, Rin replied. “Something less in quantity of existence, which in turn makes me something more in quality of it. I’ve lost something material — my limbs, but instead received something immaterial — limblessness. This way my very being ascends one step above materialness towards immaterialness”.
“Like a cloud?” Len recalled her mentioning something like that.
“Indeed”, Rin agreed. “Like a fluffy white cloud that floats up in the sky above any earthly concerns, exaltedly free to have no control over even its own fleeting existence, as the wind pushes it around and tears it apart”.
“You’re definitely torn apart”, Len laughed. “I’m glad you’re enjoying it now, because while I was cutting you up you looked like you had changed your mind”.
“Well, it’s because back then I really had”, Rin laughed too. “The pain was so unbearable that I literally couldn’t bear it and actually broke!”
“I’m not sure even the word ‘broke’ makes it justice”, Len chuckled, “you should have seen your face back then…”
“Oh!” Rin earnestly tried to rise up in excitement, forgetting that it was impossible, even got confused for a moment why it didn’t work, and when she realized why she burst into laughter.
“What?” Len asked.
“I’d love to see my face back then”, Rin said. “Have you filmed it by any chance?”
“You hadn’t said anything about filming”, Len made a helpless gesture.
“Yeah”, Rin sighed. “I hadn’t thought about how painful it would be. Though if I had, I’d opt for using some sort of anesthesia after all, so in the end it’s good that I hadn’t!”
“Huh, I guess all is well that ends well”, Len concluded.
“It totally ended well”, Rin confirmed. “I’m so glad you continued even after I changed my mind”.
“But you told me you’d only reveal why you wanted it done if I actually do it”, Len reminded her. “Nothing could stop me after that!”
“True!” Rin said and the twins laughed in unison.
Until suddenly their laughter was interrupted by Rin’s belly growling.
“Ah”, Len realized. “After sleeping for days you must be hungry as a wolf and thirsty too”.
“Well, that’s easy to solve”, Rin said. “All I have to do is go to the kitchen and cook something up, right?” she chuckled.
“Come on, Rin, stop”, Len was choking with laughter, “I can’t laugh any more!”
“Just take my hand and help me get on my feet, will you?” Rin continued mercilessly.
“I’ll just go bring you something, okay?” Len was wiping his tears, as he headed out of the room. “Just wait here for a moment”.
“Won’t go anywhere”, Rin grinned.
Len returned soon with a tray, on which there was a plate with a sliced banana topped with semen and a cup with a mix of orange juice and urine.
“Ah, there you are,” Rin said. “I need your help”.
“What is it?” Len asked, putting the tray aside for now.
“It’s itching and I can’t reach to scratch it”, Rin complained.
“No problem”, Len nodded. “Where does it itch?”
“On my leg!” Rin said and burst into laughter.

Part 2 (unfinished)

And that was how Rin’s life as a banal human being ended, and instead started her life as something higher — a quadruple amputee. She had never felt so free before. Free from her own existence, which was now entirely out of her hands. Whatever happened to her from now on was whatever was done to her, not something she could do herself. Even her very survival fully depended on others, only someone else could put food and water in her mouth. Of course, such a someone was always there for her, it was Len, her other half who would never abandon her. He had proven how unwavering his devotion was more than enough by keeping sawing off her limbs regardless of how much even she herself begged him to stop. But whether or not there was actually someone to care for her or not, she reveled in the very notion that it was out of her control.
Rin was perfectly fine with her entire remaining life consisting of nothing but lying there all day long and occasionally being fed by Len only for the sake of her continuing such empty life of hers. Rin loved fun more than anything, and knew that she would sincerely hate this hopeless boredom, but the very sincerity of that hatred would only emphasize how helpless her limbless state was, and this feeling of helplessness was exactly what she was after. The fact that even if she would be put through experiences she couldn’t stand in the slightest, she wouldn’t be able to do anything about it in the least, was in itself Rin’s greatest fun.
However, to her pleasant surprise Rin discovered that an amputee’s life didn’t have to be boring at all. Just the usual cuddling and sex with her brother became so much more fun when Rin didn’t have any arms or legs to return the embrace no matter how much she longed to. But Len didn’t stop at just that, he has grown to love playing with his sister’s new form too and was constantly coming up with new ways to do so. Rin’s life became full of all sorts fun that she couldn’t even imagine before.
Just in bed alone Len has found several new uses for Rin. Since she could now fit not only along the bed’s length, but also across it, Len could use her in place of a pillow to put under his head in his sleep. Rin enjoyed how it functionally reduced her to an inanimate object, further lessening the extent of her existence, and joked about how nice it must have felt for Len to have a cloud for a pillow.
At other times Len would put her in a similar way but on the other end of the bed, thus resting his feet on top of her. Having her brother’s feet so close, their smell assaulting her nostrils all night, ignited in Rin an irrepressible urge to lick them, but they stayed just out of reach driving her crazy. Unless by a stroke of blind lick Len happened to tumble in his sleep just the right way for his foot to end up on her face. For Rin such an occasion was a true godsend, yet at the same time it only made her urge burn worse on the other nights, fueled by the hope of knowing it was actually possible. But of course, having no control over it was all the fun.
Another thing Len would do was putting some sort of vibrator in his sister’s pussy and leaving it turned on no matter how many times she orgasmed. Rin couldn’t imagine it before, but apparently too much pleasure was not pleasant at all. Every time she would start by actually enjoying it, but with each subsequent orgasm her mind became overloaded with the unstoppable sensation, until she started crying and begging Len to stop it. Of course, he already knew well what he had to do when his sister begged him to stop. He smiled at her and turned the vibrator to full power. And Rin loved it when he did so, because it reminded her of his devotion when he was sawing off her limbs.
Although after Rin told Len how the uncertainty enhanced her experience as a foot rest, he changed the rules and would occasionally comply with Rin’s cries and actually remove the vibrator. Knowing that her begging could actually work made it all the more earnest and desperate. And sometimes Len would go even further in teasing Rin, promising her he would remove the vibrator after she has a certain number of orgasms. Rin then tried her best to achieve that, even if her only means to do so was to clench her pussy around the vibrator, and the orgasms themselves were at this point climaxes not of pleasure, but of torture. Essentially, Len made Rin strive for her own anguish out of her own will. And of course whether or not he kept his promise of removing the vibrator afterwards was entirely up to his whim. This game quickly became Rin’s favorite.