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The NTR Twins	By : TentacleFan Category: +S through Z > Vocaloids Views: 9765 -:- Recommendations : 0 -:- Currently Reading : 0
Disclaimer: I do not own anything related to Vocaloid or any of it's characters, I make no profits off this work, it is only a work of fan fiction.

Chapter List
- 1-The NTR Twins
- 1
The NTR Twins
A Vocaloid Erotic Fan-Fiction
One-Shot
Disclaimer : This is a work of erotic fan-fiction aka smutty porn. I do not own or claim ownership of or make any profit off of any of the characters or other elements contained within the story. This work is intended for adult readers only and contains graphic adult content and strong language. This includes NTR/Cuckolding, Humiliation, and other extreme content. If you are offended by such things please do not continue any further.
Author’s Notes : This story was suggested by fellow hentai writer SlutWriter. As a rule I don’t write m/m fiction but am making an exception this time around per the original request/suggestion.
As he finished his take Kagamine Len slipped the oversized studio headphones off his head and set them aside. As he took a drink from the bottle of water in front of him he wiped the sweat from his forehead with his arm. The young straw-haired popstar was in the studio again with his sister recording new material. He had been laying down solo tracks for the last hour while his twin waited in the other room with the new producer they were working with. He had thought the loud thumping sound had been hearing was part of the percussion track off that last song but now that the song was done and the headphones were off he could still hear it coming from beyond the two way mirror that allowed the producer to see him but prevented him from seeing into the mixing desk area. The producer had insisted that this isolation of the performer while recording led to getting better performances so Len had thought nothing of it at the time.
When no new instructions came through the PA system about doing another take or moving on to another song Len opted to investigate. Making his way to the door he turned the knob and pushed it on open. It seemed to be stuck on something so Len crouched to take a look and found a piece of black fabric was caught there. He freed it from under the door and looked to realize it was a pair of shorts. A very familiar pair at that. He immediately recognized them as belonging to his twin sister. They were the same tiny black shorts she wore so often. That was when looked up glanced up through the cracked door and everything went topsy tuvry in his little world.
His sister Rin’s clothing was strewn about the room haphazardly. Then he saw the source of the thumping sound. His beloved sister was bent over the mixing desk, buck naked, with the producer pounding her hard and fast from behind. His tall lanky form was athletic and tanned and a stark contrast to the short & slender young twins. As his cock slammed into Rin’s tight little twat he gripped one of her arms at the wrist while his other hand was on the back of her head pushing her face first into the glass of the two way mirror.
This might have been enough of a shock for the sensitive and effeminate Len if it had just been the sight of his twin sister getting plowed hardcore style. It was even more shocking for another reason however. Certain unseemly rumors had swirled about the twins in the darker nastier corners of the internet ever since their debut and as it turned out there was some truth to these rumors. Len & Rin had indeed fooled around in the past and Len had assumed until now that his sister was entirely faithful to him. As he knelt there staring through the crack in the door he felt sick to his stomach as he watched that assumption shatter into a million little pieces. Tears welled up in his eyes as she stared, unable to tear his gaze away.
It made it even worse when he saw how into it Rin obviously was. Her face was pressed up to the glass, one cheek smooshed tightly against it. Her tongue hung from her mouth lewdly licking at the glass as a trail of drool dripped out of her wide open mouth. Her large blue eyes were rolled up in her head in the wake of the brutal ravaging she was getting.
“Fuck! You got a nice tight little cunt, slut! Wrecking this pussy makes listening to all your brother’s warbling worth it.” Len cringed cowardly as his music was insulted. Then his blood ran cold as he heard his sister.
First she giggled as he slammed Len’s singing. Then she went on. “Oh shit you’re so big! Impale me on that huge fuck-stick you bastard! I can’t believe I ever touched Len’s teeny little dick when what I needed was a real man!” The words tore through him like a knife. Len couldn’t help but compare himself now with the cock he was watching slam up into his sister’s pussy. It was so thick and long compared to his dick and combined with his sister’s words he felt a shame like he had never known. Then the words came from the next room.
“We know you’re there Len. Come on in.” Rin’s voice egged him on from the other room between the lewd moans she let out as she got her cunt stretched out. Len pathetically complied, stepping into the room, still unable to tear his eyes away from the spectacle. They continued to fuck like beasts in heat. Not for one moment did the fact that her brother was standing there watching them slow them down.
“There’s the little sissy. You heard your sister right? She needs a real man, with a big fat cock, inside her. Show me that little wimpy dick she told me you had. I’ve got to see this.” As he taunted Len he grabbed a handful of Rin’s tight little ass. Slipping his thumb up into her clenched butthole he began to fuck her this way as well.
Len wanted to wake up from this nightmare but it was all too real. As the pair teased and cajoled him he broke down. While openly weeping he did exactly as they said. He stripped down to his drawers before slipping them off to reveal a short, stubby, and utterly flaccid penis. Shrunken up like it was it was even smaller than the tiny pair of testicles nestled right below it. The producer let out a barking laugh as he saw it. “You ever let him fuck you with that dinky little thing?”
Rin giggled. “No. I jerked him off a couple of times. That was all.”
“Sounds about right. A hot little piece of ass like you needs a real cock to show her what’s up.” The sound of their bodies slapping together filled the studio as he took her relentlessly. He glanced back over at Len. “Damn. He’s so little and skinny. He practically looks like a girl.” He thought about it a few moments. “That gives me an idea. Alright slut, down on your knees like a good little cumdumpster.” After sliding his huge prick out of her thoroughly wrecked cunt he was easily able to lift light little Rin up in the air and set her down in front of him. Len just stood there wide eyed as he saw the entire huge length of the producer’s phallus dangling erect there. It was coated in precum and his sister’s pussy juices and shined in the low light of the studio. It dangled halfway to his knees as even fully erect the weight of his behemoth junk was too much for it to stand at attention.
Rin seemed to understand what to do next as she opened her dainty little mouth wide open. With a couple of strokes he unleashed a torrent of thick white jizz straight into her open maw. Rin caught every drop as he fired off a load worthy of the greatest of pornstars. Jet after jet spurted out into her mouth till her lower jaw was entirely filled with bubbling churning man gravy. When he was done Rin just kept staring up at him, her open mouth revealing the creamy mess of jizz within.
As the producer turned towards him Len was shocked to see his huge member was still fully erect even after expending that titanic load. He swaggered over cockily towards the blonde popstar who was barely half his height. “I think the little girly-boy needs a real man as bad as his sister did.” Len had barely comprehended what was about to happen when he was grabbed and pushed forcefully over a black coffee table covered with bottles of booze and some white powdery substance. Len feebly struggled as he was forced down stomach first onto the table. All this accomplished was to make his tight little girlishly round ass shake.
“No, let me go!” His voice was shaky as he whined and sniffled.
“I don’t think so sissy. You’re a little bitch and I’m going to fuck you like one.” That was when Len felt that fat cock-head poke up against his tight little sphincter. He was powerless to resist as the producer suddenly shoved his long hard prick up inside his asshole. Len let out a soft whimper as he felt the painful sensation of his virgin rectum being stretched out around the huge tool. The producer wasn’t gentle about it in the slightest. He reamed Len’s abused lil pucker just as hard as he had enjoyed his twin’s cunt. Large heavy swinging balls slapped up against his comparatively tiny scrotum as he was forcibly sodomized atop the table.
What was every bit as bad as the pain he felt in his burning asshole was the shame Len felt as he realized his tiny little dick was getting hard. The realization he was aroused by all this took him to an entirely new low. He stopped his useless struggling and let the producer rape his tight anal cavity with his superior sized cock. When Len felt the man bottom out, his entire length buried inside him, he let out a mewling little sissy moan as he squirted a couple of thin watery spurts of cum onto the floor below him.
As he recovered from his orgasm Len glanced up to see his sister standing there naked before him. Dropping to her knees she was face to face with him as she grabbed the back of his head and pulled him in for a kiss. As he tasted his sister’s lips the sweet flavor of her cherry lip-gloss was immediately overpowered by the warm salty cum that she exhaled into his mouth. Utterly broken as he was now he savored the gift of his rapist’s cum before swallowing it down obediently. After watching her brother chug down a mouthful of jizm Rin sat down on her cute little ass and started rubbing her little cunny to the sight of her brother being taken by her lover.
“Fuck this little bitch’s ass it tight! I’m going to have to nail your ass later and see how it compares.” He slapped Len hard across the ass as he pounded away. It left a red hand print behind on his soft girlish backside. The only sound Len let out was a soft little moan. Sensing he was near his limit the producer hilted his fat shaft all the way inside Len’s stretched out little sphincter. With a hearty grunt he began to pump out helping after helping of hot spunk straight into Len’s anal cavity. Feeling his insides painted with thick warm goo felt both utterly alien and somehow depravedly satisfying to the entirely broken young man. More jizm flooded his butthole until he could feel it seeping out around the cock wedged deep in his ass. Little rivulets of semen dripped down his scrawny little testicles where even this small amount of escaped cum dwarfed the tiny pool his load had made.
When he pulled out there was a wet pop as the producer’s cock-head escaped Len’s asshole. The formerly tight little hole was utterly gaping open. The wide open hole was dripping with seed and strings of cum still ran between cock and anus. No longer stopped up a wet mess of cum poured out making a bigger mess of the floor. Len’s cute little upturned butt was left a rosy hue from all the slapping of flesh on flesh. He lay there unmoving, blankly staring at the sight of his sister getting off until he passed out some time later.
A while after that…
As the producer sat there on his black leather couch he looked down between his wide spread legs at the pair of young blonde popstars kneeling between them. Their big blue eyes gazed up at him as their nimble little tongues worked up and down the length of his long hard fuckstick. Rin was focusing her efforts on the mushroom shaped tip as she swirled her tongue around it. Len’s tongue had been darting up and down along the shaft but now he ducked beneath and eagerly began to suckle one of the large heavy balls between his lips. He focused in on pleasuring that one nut for a time before switching over to the other testicle. After giving each side of the producer’s scrotum a good tongue bath he worked his way back down the underside of the huge phallus until Rin moved to one side so that both of them could lap at the tip. As they licked in unison he gripped his shaft and stroked firmly.
“Put your slutty little faces together.” Giggling as they did so the twins went cheek to cheek, still staring wide eyed as he stroked his prick right in their faces. They were rewarded moments later with a shower of cum as his cock began to spew its smelly thick load. Cum soiled their straw colored hair and painted their petite faces. Gooey strands and patches of semen clung to their skin as its heat seeped into them. The whole time they knelt there smiling and catching stray shots on their tongues which they savored without swallowing until after he had finished. When he was done their faces were a sloppy mess of cum as it dripped from their chins and down across their nude bodies. Then they proceeded to lick each other’s faces clean as they embraced each other.
Once Kagamine Len had wanted to be with his sister more than anything. Now the little sissy boy would rather share her lover instead.
Author’s Notes : Thanks for reading. If you enjoyed it please take a moment to vote up the story, leave a comment or review or if you like you can write me directly at tentaclefan.adultfanfic@gmail.com. If you’re reading this and have yet to check out my many other stories you can find them at http://members.adult-fanfiction.org/profile.php?no=1296900790&view=story
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The NTR Twins