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Twincest: Kagamine Style	By : Chozin_Yi Category: +S through Z > Vocaloids Views: 546 -:- Recommendations : 0 -:- Currently Reading : 0
Disclaimer: I do not own Rin and Len, nor the Vocaloid program. I make no profit.

Chapter List
- 1
- 2
1. I do not own the Vocaloid program, nor the characters featured.
2. This story is a Lemon, meaning it contains naughty and sexual content.
3. This story also features Twincest. (Duh!)
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Chapter Summary: Rin has always been asking some of the weirdest questions, but this one might take the cake, and Len's virginity.
Chapter 1: One morning, an awkward request leads to incest.
It was Sunday morning and the Kagamine twins woke up to the sound of the birds singing. Rin Kagamine opened her eyes, sat up, yawned, and stretched her arms before climbing out of bed and went to her closet to change into her clothes for the day.
Len Kagamine meanwhile, groaned into his pillow, dragged himself out of bed, and walked out of his room to the bathroom, not bothering to change his own clothes.
Rin went downstairs and began to prepare breakfast for herself and her brother. She threw bacon into one pan and as it sizzled, she poured pancake batter into a separate pan. After finishing his business in the bathroom, Len sauntered downstairs slouching, and took his seat at the table.
"Len, shouldn't you be dressed already?" Rin said to him, tipping bacon onto his plate.
"For what? It's Sunday, and it's not like we have any plans today." Len retorted as he poured syrup on his pancakes.
"Well, that doesn't mean you can walk around in your night clothes all day. And besides, (She sniffed the air near her brother) you reek!" Rin said, pinching her nose.
Len just rolled his eyes and replied
"Fine, just lemme eat first." with his mouth full of bacon.
Rin sighed and took her seat at the table and began to indulge in her pancakes.
The twins ate their breakfast silently, and when they had finished, Len got up and headed upstairs to hit the shower while Rin put the dishes and silverware in the dishwasher.
As a cascade of water ran down Len's back, he was beginning to shampoo his blonde hair, when he realized that he forgot to get a spare set of clothes to change into.
"Aw crap..." He grumbled to himself.
"Rin!" He called.
The blonde twin in question heard her brother's calling over the rushing water and headed upstairs to see what he needed.
"What is it Len?" She asked as she poked her head into the steamy room.
After rinsing his hair, Len peaked around the shower curtain to his sister.
"I forgot to grab some clothes, could you get some for me?" He asked over the downpour.
"Kay." She replied and went to Len's room.
After grabbing one of Len's shirts and a pair of shorts, she peaked back into the bathroom.
"Do you want me to leave them here or in your room?" Rin called to him.
"You can just leave them in my room." Her brother replied.
"Alright." She said nodding her head and shutting the door.
Leaving the clothes on the bed, she walked over to her room next door to grab her CD player along with a copy of an album from one of her favorite Japanese bands, Bad Religion.
As the blonde girl ventured to her room, Len shut off the shower and climbed out to dry up.
Satisfied and thinking he was sufficiently dry enough, Len wrapped his towel around his waist and peaked out into hallway.
Seeing that the door to Rin's room was closed, Len felt the coast was clear and walked to his own.
Removing the towel, he was about to dress himself, but realized that Rin forgot something.
"Aw man, she forgot to get me a new pair of underwear." Len tsked to himself and walked to his dresser before opening a drawer and grabbed a pair of boxers before sliding them on.
He then took the shorts and slid into them before pulling the shirt on, now fully clothed.
He turned to leave but saw his sister standing in the doorway, holding her CD player.
"Rin?" Len said raising his eyebrow.
It then occurs to Len that he left the door wide open, and judging by the blush on Rin's face, she had seen Len in all his glory.
"Oh no! Uh, Rin! Forget you saw anything okay!? This never happened! Right? Right!?" Len yelled, blushing madly.
Instead of agreeing and apologizing, Rin sat her CD player on Len's desk and shut the door behind her.
"Lemme see." She said.
"Excuse me?" Len replied, believing his ears were playing tricks on him.
"You heard me. Take 'em off, I wanna see you again!" Rin explained bluntly.
"W-why?! Why do you want to see me naked? I'm your brother!" Len yelled, daring to believe what's transpiring right now.
"Len, how long has it been since we last saw each other naked?" Rin inquired.
"Not since we were toddlers when we used to bathe together. But why are so... 'interested' all of a sudden." He replied, leering at the perverted girl who is his sister.
"Because I was too young to be interested back then, but I am now. Besides, I figured it would be easier if it was my brother and not some random boy, right?" She asked, tilting her head with a cute, curious look on her face.
"I don't know." Len mumbled, holding his arms behind his back.
"How about this, do you wanna see what a girl looks like down there?" Rin questioned.
Len looked at her dead on. "Are you really suggesting...?" But before he could finish, Rin piped up.
"Yeah, I'll show you mine if you show me yours!" She explained.
Len just stared at her, opening and closing his mouth like a fish out of water, at a loss for words.
He did overhear other boys at school having hushed conversations about the times they played "I'll show you mine, if you show me yours" with some girls they knew.
He thought he'd never have a chance to play it with a girl, not counting Rin of course, but now that he thought about it, Rin's been there his whole life. He even started making sense of Rin's logic about it being easier since they're siblings and they've know each other their whole lives.
"Fine, but we do it together, okay?" Len said, his mind made up. Rin smiled and nodded her head. Standing in front of each other, the twins grabbed the waistbands of their shorts and looked at their respective twin's eyes.
Rin began counting.
"3"
Len continued.
"2"
Rin finished.
"1, go!"
With that, both twins yanked their pants down along their underwear.
Len had his eyes shut, but once the deed had been done, he opened them, seeing his sister's face, focused on the now bare area between his legs.
Following her example, he slowly looked down and saw something he never thought he'd see again, his sister's bare pussy.
Letting out a small gasp in awe, Len took in this beautiful sight. Of course, his hormones began working on overdrive and he realized that his boyhood was starting to stretch and stiffen.
He's had erections before, I mean, he's woken up with morning wood numerous time before, but sporting one in front of his sister made his face flush with embarrassment as he pulled the hem of his shirt down to cover it.
"Wait! Lemme see!" Rin said as she shook her pants and underwear off her ankles and squatted in front of Len while lifting his shirt back up.
"Wow, I didn't know it gets big like that." She said in awe.
You see, despite being 14 years old, the twins haven't exactly had proper Sex Education. The bare minimum they knew was that boys and girls had different "equipment" down there, and that they are used for making babies, but they lack any specific details, thanks to their school passing a new rule, that students don't get proper Sex Ed until they're seniors.
And even though Len has had erections before, he never really learned about masturbation, so he never actually "relieved" himself before either.
His morning wood would usually just go away once he's in the shower. Although that doesn't mean he's never been interested in the opposite sex, he and his sister are in the same room butt naked after all.
"Len go lie down on the bed." Rin asked him.
"Kay." He replied, sitting on the bed with his back to the headboard.
Rin climbed up next to him and kept on staring at his boner like it's some animal she's never seen before.
"Can I touch it?" She asked looking up at him.
"I guess..." Len mumbled.
With 3 fingers, Rin took his penis in her hand, and slowly stroked it, making Len gasp and moan from these foreign sensations.
"Wow, it's soft and hard at the same time. And so smooth too!" She said to herself, her excitement building.
"Rin, that feels really good." Len said as he took deep breaths.
"Does it? Cool!" She said, happy that she's making her brother feel good.
"You know, it kinda looks like a funny looking lollipop!" Rin exclaimed, giggling. "In fact..."
Without another word, she began to lick up and down the sides of Len's erection causing him to moan in pleasure.
"Ah Rin! That's so good! Don't stop!" Len cried out, grabbing a pillow that was next to him and hugging it closely as he watched his sister giving him head.
Encouraged by Len's words and wanting to please her brother more, she took him whole in her mouth and sucked harder on his dick, bobbing her head up and down continuously.
Len gripped the pillow tighter and moaned loudly, pleasure filling his whole body, while another feeling began to build in his groin.
When it was close to its peak, Len gasped out and said "Rin! Stop! I gotta- I gotta pee! Wait! Ahhh!" And with one last gasp, he erupted in Rin's mouth, filling her up and surprising his twin.
Out of Instinct, she swallowed the load, and smacked her lips.
"What was that stuff? It was salty, but I really liked it." She inquired.
Rin then rubbed her finger on his dick, covering it in the last of his seed. "Is this semen?" She asked her brother.
"It could be. Oh my god Rin, that was awesome!" Len replied panting.
He then looked down to Rin's pussy, and a thought occurs to him.
"Rin, here, take my place. I wanna do you now." He said, having her lie down.
"Really? Okay!" She said excitedly, as Len spread her legs.
Without thinking twice, Len leaned down and began licking all around Rin's vulva and her sweet, untouched lips.
"Oh my god! Len that's so good! More! More!" Rin begged.
Not needing to be told twice, Len carried on and licked Rin's pussy as it became wet not just with his saliva, but with her juices as well, reaching every angle of her vulva and dipping his tongue into her folds. As he lapped her up, he brushed her clit making Rin scream in intense pleasure.
"Oh Len! Do it again! Lick right there! Please!" Rin panted out.
Len did as she asked and continued to lick circles around her clit, sometimes even sucking or nibbling on it. Rin eventually hit her peak and screamed in ecstasy from her first orgasm and thrusted her pelvis forward into Len's face.
As she came down from her high, Rin caught her breath and sat up to see her brother wiping his mouth with his wrist.
"Oh Len! That was the best feeling ever! Thank you!" She said as she hugged her twin closely.
"You're welcome Rin." He said happily as he hugged her back.
They both looked at each other and without a second thought, they kissed their respective twin deeply, swirling their tongues around and sucking on them.
When they both broke for air, Rin looked down to see Len's erection standing tall again.
"Looks like you want some more fun." She said giggling. Len nodded.
"Hey Rin? I wanna try something different. Can I?" He asked pulling his shirt off.
"Okay. Like what?" She replied as he pulled her shirt off as well, exposing her perky A-cup breasts and having her lie down again.
Len spread her legs again and this time knelt in between them and rubbed the head of his dick against her entrance.
"Do you wanna have sex with me?" She asked realizing what he meant.
He nodded.
"But won't I get pregnant?" Len shook his head.
"I don't think so. Your period wasn't too long ago right?" He asked.
Rin nodded.
"I think we're good then." Len then took hold of his penis and began to push into his sister's virgin pussy, breaking her hymen and making her scream.
"Stop! It hurts!" She cried.
Len held himself still as best he could, which is no easy task, as Rin's pussy enveloped his dick.
"I think you're good." Rin mumbled.
Nodding, Len began to thrust in and out of Rin, making her gasp and moan, feeling her pussy pull and suck him back in with each thrust.
"Oh Rin, you're so tight!" Len moaned and he quickened his pace.
"Ah! Ah! Ah! Oh Len, you're filling me up and it feels so good!"
She moaned as she wrapped her legs around Len's waist, begging him to go faster.
Heeding his sister's wish, Len started railing into her as fast as he could.
"Len! Len! Len! Len! Oh my god, I'm cumming!!!" Rin screamed when her orgasm hit.
The sudden tightness within her pussy was too much, and Len hit his own climax and squirted his spunk deep into her, moaning his twin's name.
After his second ejaculation of the day, Len pulled out and hugged his sister closely.
"That... was... amazing!" She breathed out.
Len couldn't help but smile and kissed his cute sister on the nose.
Rin looked down and saw that Len was actually still hard.
"Wanna go again?" She asked him.
He just grinned and said "You bet!"
"Here." She said, rolling themselves over. "Let me do it myself this time."
She then straddles him, reaches down and grabs Len's penis, then lowers herself on it, gasping at being filled again. Once she's comfortable, Rin begins to ride Len's boner, bouncing in her seat and moaning his name. Looking up at her, Len reaches up and gropes her boobs and fondles the pale orbs in front of him, occasionally tweaking the nipples, making Rin cry out.
"Oh yeah, oh yeah, Len I love your dick!" The blonde girl moaned out.
"Rin I love your pussy!" Len moans as the horny sister in front of him bounced faster and faster.
Moving his hands down from her breasts, Len began to grope and squeeze her butt, and started thrusting up to meet her hips.
Soon their peaks got closer and closer until they both cried "I'm cumming!!!" into the air as they shared their mutual orgasm.
Rin lied down on top of Len, resting her head on his chest, panting. Len pulled her close and kept his arms around her back. Without another word, they kissed, and fell asleep.
End of Chapter 1.
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Twincest: Kagamine Style