Becoming a prisoner of her brother's sexual gratification [Full text]

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Becoming a Captive of My Brother's Sexual Desire

[Full Story]
Word Count: 9,000

Aoyama Mie (High School Year 3, 18 years old)

1.

Ever since I was in elementary school, I've hated that mysterious area between my legs. The damp
area has two wrinkled, fleshy walls, especially that repulsive red color, which exudes
a sense of disgust.

Although it's the most mysterious part of my body, I still can't stand its filthy feeling. When
no one is around, I often spread my legs, and then a nauseating odor hits my nose, which
is truly disgusting. This is one of the reasons why I hate it.

Even after using the toilet and wiping away the remaining urine, this area is still damp. So
it accumulates sweat, dirt, etc., meaning it always emits a filthy stench.

Just smelling this stench gives me an unbearable feeling of uncleanliness.

Although it looks ugly, I still succumb to the pleasure of masturbation. Every time, I swear it's
the last time I'll masturbate, but in the end, I ca

n't help but break my vow. And because of this, I hate it even more for its irresistible, evil temptation—the incessant masturbation.

Sometimes, before or after showering, I look at my naked body. I stand straight,
legs tightly together, inhale, and contract my abdomen, completely concealing my private parts. I
revel in this self-admiration, standing straight from head to toe, which is very alluring.

I always feel like a mermaid at this moment, but when I see my not-so-pretty face, my mood
plummets.

"This isn't a mermaid, it's just a fish."

I forget which book it was written in, but a man's genitals—just looking at them is enough to make you unbearably aroused.
If you're then "fucked" by him, you'll need them for life.

But when the whole family bathes together, I've seen my father's genitals, hanging like a deflated parachute, and
nothing can arouse me.

Ever since I was old enough to understand, I've never been able to stand the ugliness of my private parts; I truly loathe them from the bottom
of my heart . I just never imagined that accidentally touching them could be so arousing.

I've done some strange things about my private parts. For example, once I took a red marker
and colored it bright red, which ended up staining my underwear and getting me a scolding from my mother
!

Such childish behavior not only made me feel sexually aroused, but also caused me to moan incessantly, and my vagina would produce fluid. The pleasure was indescribable.

Sometimes, I would insert the pointed end of a comb into a woman's most mysterious and sensitive opening, enduring the pain as I
pushed it deeper and thrust it in and out.

After a while, when the pointed handle was pulled out, drops of blood would flow from the cave. This sight made me even more excited
, panting and unable to control myself for a long time.

Although I was punishing my hated genitals through self-mutilation, the excitement generated by this self-mutilation
was undeniably a kind of mysterious pleasure.

However, I didn't know why I had such an extremely contradictory personality.

Now I was having sex with two men at the same time. Although they only brought me sexual pleasure, I
used them to do things that I couldn't do on my own, to punish my genitals.

Of course, my parents didn't know about my strange sexual fetish and having sex with two men at the same time,
and of course, I hid it very well.

Even when I came home from school, I didn't go through the room where my parents lived, but went directly
to my room on the second floor of another building.

That night, around 11 p.m., my two sexual partners, Kiyoshi-kun and Nishida-kun, quietly came to
my room on the second floor.

Actually, it's because during the day, on my way home from school, I went to Nishida-kun's apartment, and
without Kiyoshi-kun's knowledge, we had sex alone.

I insisted that Nishida-kun touch my genitals, rubbing, playing with, and licking them, which made him a little unhappy.

After doing all that, I was very tired and didn't know how to describe it. My genitals were hot and swollen, and I
felt like something was rubbing against my sides.

I couldn't straighten my back, and my whole body felt off, but I didn't want Kiyoshi-kun to suspect anything, so I instinctively
went along with him.

Because Nishida-kun sarcastically said things like, "Miss Mie, you seem quite energetic today..."

and other such cold, sarcastic remarks that Kiyoshi-kun couldn't understand.

As usual, Kiyoshi-kun pressed down on me first. It was the first time I felt a man was so heavy, so I
told him I was very tired and not feeling well, and that I might not be able to fully cooperate, but that he could
do whatever he wanted.

As soon as he finished speaking, Kiyoshi hugged me warmly and kissed me passionately.

"Tonight, Mie is different! Full of charm, cute and amazing."

He whispered in my ear, and to make me happy, he kept sucking on my breasts, biting my
ear, rubbing it, and teasing my clitoris with his hand from time to time. He caressed me passionately.

But because my genitals were swollen and painful, no matter how hard Kiyoshi worked on me, I felt numb and
had no feeling.

Instead, I was like a cloth laid under his body, my whole body trembling as he squeezed and rubbed me,
as if he was the only one having sex with me. And he was about to ejaculate on me.

Next, Nishida hugged me and fucked me from the side. He always used this side-lying position and would occasionally
stimulate my clitoris with his fingers. In this way, I finally had some pleasure.

Although it took twice as long as usual, I finally reached orgasm. I turned over, spread my legs, and
immersed myself in the pleasure of the orgasm, and let out a moan. At that moment, my mind went blank, I was completely unaware, and I only felt "good" . I didn't even know when

Kiyoshi and Nishida left.

The next morning, I had a terrible headache, and all my joints ached terribly, especially my genitals, which felt strange
. Although they weren't hot or swollen anymore, some white discharge had come out, and it felt like I was back to
how .

In the evening, after I recovered, I thought about what happened the night before, and I was still a little excited.
After showering, I went to the front of the house to watch TV while thinking about it. That's when Nishida-kun came in.

"Miss Mie, last night was great! Do you remember how many times we did it?"

I listened quietly.

"Hmm… tonight at my apartment, are you coming? There's a new person…"

he said, giving a mysterious smile before leaving.

By seven o'clock, I couldn't hold back any longer. I used returning a friend's laptop as an excuse to leave
home.

Then I felt my heart surging like waves, and I felt like I was sleepwalking, unconsciously
walking towards Nishida-kun's apartment. I was really—

2

In Nishida-kun's apartment, I saw three faces, including the newlywed, who were expecting me. When I saw
the young man who was supposedly the newlywed, I was surprised.

His name was Kubo Junichi, and he lived in the bustling area. His family ran a bar, and his
mother . She had been in love with my father, a fact
known to everyone in the neighborhood. After she married someone else, Junichi's stepfather funded the current bar.
My parents knew when the bar opened.

But as time went on, it became a topic of conversation. My mother often used it to criticize my father, causing them
to argue frequently. But despite the arguments, they never did anything too outrageous.

Junichi was my father's child with that woman. We didn't have any contact like other relatives
, and we had never met for any reason, but we were indeed siblings.

Although he inherited his mother's beauty, I felt he looked more like his father; he was his father's son,
that much was certain.

I knew this at the time, but the relationship between my father, his lover, and my mother made me
somewhat reserved.

Now that we'd met openly, even if I tried to treat him like a stranger, it didn't change the fact that
we were siblings.

Regardless, I still felt uncomfortable and had a strange feeling. But he was really handsome,
which ignited some strange, unhealthy desires within me.

Junichi and I met at Nishida's apartment, and before we even had a chance to become brother and sister,
we had sex.

Although the grudges of the previous generation were complex and intertwined, our sexual relationship improved our hostility
and fostered some feelings. Because of this, I gradually distanced myself from Nishida and Kiyoshi and entered Junichi's
world .

Along the river, there was a city known as a bustling district, and Junichi's home was there, a two-story
shop . But he lived alone in a small apartment by the river, ostensibly to study hard.

He only came to this small apartment to live alone when he needed to study, sometimes staying overnight and
sometimes going home.

Like several other students, he disliked living in places his mother could see and control, so living
here had a secluded feel to it.

One day, I received an invitation from Junichi. He told me that the apartment was quite secluded, usually
occupied only by himself, and especially quiet and undisturbed at night.

He insisted that I visit, no matter what.

Full of curiosity, I accepted his invitation and met
him .

I had imagined that this was Junichi's study, a quiet and scholarly place,
but it was the opposite of what I expected. It was a specially designed luxury residence with a small but
fully equipped kitchen and beautiful, expensive furniture in the living room.

The kitchen and other facilities were complete, making it convenient to live there year-round. Although the south side faced the sunlit river, it was far from the shore, so you didn't have to worry about being seen

no matter what you did inside .
There was no better, more secluded house than this.

Before coming here, Junichi and I had agreed that we would come here like any other couple
, to play freely and do whatever we wanted. And we were truly happy that day.

Because we were siblings, we didn't need to be polite or break the ice, and there was nothing between us
to hide. We could talk freely about anything, whether it was family matters, private matters, or personal secrets.

Junichi had some strange interests; he preferred playing with each other's genitals to regular sex.

Because when we were together, most of the time we were playing with each other's genitals.

Of course, we also had intercourse. But sometimes, it was almost always Junichi who
ejaculated and was satisfied, while I felt no pleasure at all.

"We're siblings, isn't it strange to do this?"

If I said that, Junichi would straddle me without a second thought, taking out his
penis and inserting it into my vagina.

"It's not surprising at all. There's no law against siblings doing what parents can do!"

He would always say casually, then keep kissing me, hugging me, and caressing my body.

At first, we decided to be together once or twice a week, and only in the evenings. But
gradually we weren't just together on Sundays; eventually, we even skipped school and spent all day
in that secluded room.

The room was heated, so even naked, we didn't have to worry about getting cold.

Junichi had the physique of an athlete—strong and muscular—with thick pubic hair, and more
importantly, he possessed a penis just like an adult's.

When he wasn't dressed, you could see an old scar on his right abdomen where his appendix had been opened.

For someone like me who had never experienced sex before, or even had sex in
various positions, I was genuinely embarrassed when we first did these things at Junichi's house. 　　The real reason was that, naked, my skin was dark, my breasts were flat, and my body wasn't particularly full; I was dry and flat, yet I was especially fat from my stomach to my thighs. Compared to Junichi, who had a slender, muscular, and well-proportioned figure
, I really looked inferior. 　　And regarding his genitals, Junichi's penis was exceptionally large and hard from every angle ; it always gave off a masculine feeling. 　　The glans was shaped like a mushroom, glistening with a bright fleshy color, and it always throbbed fiercely with . 　　Compared to his genitals, my perpetually wet and unremarkable genitals seemed like filthy garbage to be discarded. 　　But despite my thoughts, this ugly thing was unexpectedly loved by men. What I found unbelievable was that every man who knew me wanted to have sex with me. 　　Junichi was no exception. He always treated my urine-smelling, ugly genitals like a delicious feast , sucking and licking them, and often burying his face between my legs, smelling the stench. 　　I reciprocated in kind. Usually, I would hold Junichi's penis in my hand and touch his pubic hair with my nose, or gently suck and pluck the pubic hair with my mouth. 　　Of course, I would also suck on the glans, or lick and rub it with the tip of my tongue for oral sex. Finally, he would rub his saliva-covered penis repeatedly with his hands until he ejaculated. 　　During the act, especially in the moments before ejaculation, Junichi would bury his face in his palms, his chest, abdomen, and legs trembling uncontrollably, his entire body shaking and moaning as . 　　When I saw his excited state, I was incredibly excited too. 　　Although having sex with only one person didn't give me an orgasm, I could reach one if my clitoris was stimulated with my fingers . 　　I had told Junichi about this beforehand, and asked him to do it during intercourse. Sometimes we even reached orgasm at the same time. Sometimes we would compete to see who could reach orgasm first. 　　Once, Junichi had me lie on a low table, exposing my genitals. He spread my legs and inserted something that hurt me into my vagina in one go. 　　Soon after, I felt the urge to urinate. Finally, I couldn't hold it in and urinated with a whoosh. When I felt the hard object being pulled up along with my urine, I quickly rolled over and sat up. The strange-looking, thin thing fell off as I rolled over. 　　At that moment, Junichi was frantically searching for something to wipe his urine-soaked body. I handed him my underwear to wipe the wet areas. 　　"What's wrong? What's that?" I asked him. 　　Junichi then showed me the long, green, rubber-tube-like thing. He said, "It's the stem of a water lily from the pond." 　　He had taken a withered stem from the pond and inserted it into my genitals, all the way in . 　　When urine flowed from the tube's outlet, he hurriedly tried to catch it with his mouth. Just as he was about to drink it , I rolled over, making a mess of urine everywhere. 　　"I don't know what you were doing that made you roll over, but it's disgusting that you were trying to drink urine," I said, turning my face away. 　　Junichi laughed and said to me, "But since this is my sister's pee, how could it be dirty? Not at all ..." 　　"Ugh...you really are awful...then next time I'll drink your pee too!" 　　Junichi said he would do it again, but this time he prepared a towel, a basin, and a spoon, and then told me to lie on my back with my legs raised and spread apart, just like before. He picked up the stem of the water lily and forcefully inserted it into my urethra. 　　It still hurt a little and was not comfortable at all. When the tube was inserted all the way in, I felt the urge to urinate, so I quickly said to Junichi, "Is it okay? I need to pee 　　again." He hurriedly tidied himself up. 　　"If you want to pee, just pee, is that alright?" 　　Junichi answered me while slowly inserting the tube further in. At this moment, I felt a slightly painful pleasure. 　　Then the urine overflowed from the tube and flowed onto the towel that had been placed under my buttocks, and the towel became wet in an instant. 　　On the other hand, Junichi was seemingly enjoying something delicious, continuously sucking up the urine flowing from the water lily paste. 　　Finally, the urine stopped flowing, and his bladder deflated like a punctured balloon. 　　"The tube is too thin," Junichi said. 　　Although I had drunk his urine several times while giving him oral sex, that warm, salty urine was really not pleasant to drink. 　　Once, I even used a rubber tube that Junichi had bought from the pharmacy to insert into the glans of his penis. Although it caused a fracture, it was inserted quite deeply, and then warm urine flow out, without a single drop leaking out. I drank it through the tube. 　　Our behavior was probably what's called "sexual perversion"! Even so, I found it unexpectedly exciting. 　　　　　　　　　　　　　　　　　3. 　　Not long after, Junichi bought some so-called "medicine that would make one more energetic after injection" from someone and gave me an injection. 　　He injected the syringe directly into my clitoris. 　　The medication was usually injected into the wrist, but Junichi deliberately injected it into my clitoris.

After a while, I felt a heat rising around my waist, which felt comfortable, but I didn't experience the heightened sexual excitement I usually feel during my sexual period.

Junichi, who knew my fetish, would sometimes use a laboratory glass tube filled with hot water, seal it, and
forcefully insert it into my vagina to bring me to orgasm.

Even though he would insert and remove the glass tube, lick my labia, and then
insert his already erect penis, his elaborate arrangements were clearly intended to bring me to climax, but
I didn't feel any pleasure.

Despite this, having sex with Junichi was one of the things that attracted me to him. Perhaps it was because I had developed feelings for my biological brother, Junichi, and I was quite happy
that he had chosen me as his sexual partner . 　　However, for Junichi, perhaps I was just an object for his sexual gratification. 　　During the time I was immersed in sex with Junichi, every two or three nights, Kiyoshi and Nishida would secretly come to my room on the second floor. 　　Lately, we've become increasingly daring. They often sneak into my room, and the three of us sleep in the same bed until dawn, so we can have sex again then. 　　The so-called pleasure only comes when each of them takes turns having sex twice. Of course, sometimes even two times each doesn't produce pleasure, but generally, it does. 　　Kiyoshi touches my clitoris with his fingers, while Nishida inserts a glass tube into my vagina, constantly masturbating me like this. The feeling is incredibly pleasurable. If they continue masturbating me more vigorously, I always end up moaning uncontrollably, almost losing consciousness. 　　Although I've had sex with three men without interruption, I haven't shown any signs of pregnancy. 　　I think among girls my age, probably no one has sex as frequently as I do. 　　When I talked about this with a good friend, she said, "During menstruation, ovulation occurs along with bleeding. If sperm is ejaculated into the egg while it's in the uterus, pregnancy will occur." 　　In other words, if you don't have sex during your period, you won't get pregnant. 　　But my thoughts were the opposite. Once, I asked Junichi about it for his opinion. 　　"What? That's what your friend said? That's ridiculous! Does she even understand? What comes out during menstruation is a dead egg, so even if you have sex during your period, you won't get pregnant." 　　"Oh! I see." 　　"Do you understand now? That's why there's the so-called safe period," 　　he explained to me. 　　"Mie, have you ever seen what sperm looks like?" 　　"See what?" 　　"The sperm worm! I'll show you next time; I'll bring the microscope from home. And Mie, you probably haven't seen your own eggs, have you? During your period..." 　　"No, and seeing my own eggs...?" 　　"You haven't even seen dead eggs?" 　　"No!" 　　"During your period, you just pay attention." 　　"Hey! How big are they?" 　　"Hmm! Very tiny, almost invisible, only a few millimeters in diameter, truly an extremely small creature ." 　　"How can we see them clearly then?" 　　"Next time, Mie, when you have your period, we'll take a look." 　　Junichi excitedly planned. 　　"I'm currently trying out a great invention!" 　　"What invention? Tell me, tell me..." 　　"Well, it's using computers to create artificial babies." 　⊥It's an astonishing idea, like the creation of test-tube babies. Saying this makes it seem half- joking, but seeing his serious expression, it's a completely irrelevant topic. 　　Let's change the subject! 　　Because of my irregular periods, I often have doubts and consider various possible causes. Recently, I've been experiencing a lot of vaginal discharge, so I think there must be a problem with some part of my uterus. 　　A white, viscous substance, like sour fermented matter, flows out, staining my underwear in large quantities. My underwear is often covered with a layer of yellowish, damp stuff, which is very uncomfortable. 　At first, I thought it was semen ejaculated during intercourse, flowing back out afterward, but the nauseating odor didn't smell like semen. 　　Also, I often experience strange spasms in my abdomen, near my uterus, a warm, pure feeling, as if my entire abdomen is very heavy, and sometimes I can even feel it spasming violently! 　　Even slightly more vigorous intercourse, or intercourse lasting longer than usual, although it excites me, the pain after the pleasure becomes increasingly severe. 　　Despite this, I still made a promise with Junichi-kun that we would study eggs together when my next period came, so I told him the planned date in advance. 　　Before my next period, Junichi-kun was constantly researching various methods to obtain eggs that were still alive in the uterus at the time of menstruation. 　　He really put in a lot of effort! It really was. 　　Junichi-kun had me lie on the low table in his study, with my legs spread as wide as possible so he could examine and study them carefully. 　　He would insert his fingers, measure the depth of the opening with a ruler, and even use his fingertips to explore the innermost structure. 　　A few days later, Junichi-kun brought me the semen he had collected after masturbation and showed it to me under a microscope. 　　Surprisingly, in this white and bright semen, there were countless sperm, like a thousand horses, swimming forward like shimmering silver. This scene ; it was truly breathtaking. 　　"Wow! There's so much!" 　　"As soon as I insert my thing—my penis—all of this will go into your belly!"

"Really? That's great... This is the first time I've ever seen these things..."

When Kiyoshi-kun, Nishida-kun, and Junichi-kun took turns having sex with me, if each of them did it twice, then
a total of six sperm would enter my womb.

I thought incredulously that each ejaculation was only one or two drops, but one drop of semen
contained thousands upon thousands of sperm. So, after having sex six, seven, or eight times, how many sperm would
swim into my uterus?

Once, Junichi-kun prepared a thermos and collected
the semen that I ejaculated after masturbating him for about four hours, about five times.

He said that the thermos had the same temperature as body temperature, so the semen could be preserved for many days until
it smelled bad.

Although the first and third ejaculations were relatively plentiful, the fifth time the
semen had somewhat dried and remained on the glans, swaying in and out with each contraction and relaxation of the glans, as if struggling
to breathe. Finally, only a single drop dripped out, much to my regret.

Lying on my back facing the bright light, I felt Junichi insert a thick glass tube into my
vagina .

This hollow tube could reach the very inside, and he could even
see inside like a diving mask. Junichi confidently explained,

"Wow…you can really see all the way in!"

Then he pressed his face between my open legs.

"That's right, it's a bottomless pit!"

I was also infected by his excitement, inexplicably becoming aroused myself.

Afterwards, the two of us embraced under a low table with an electric heater, intensely playing with each other's genitals,
igniting a burning desire.

That day, I took off all my clothes and crawled under the covers, then put my feet under the low table to warm them, and then
hugged the naked Junichi. After kissing, masturbating, and performing oral sex, Junichi finally
inserted his erect penis into my vagina. And so began another round of intercourse.

Sometimes I was on top, raising my buttocks so his penis could enter me from behind, or he would do
side penetration, or even I would sit and move up and down while having intercourse. Making love in this series of strange positions
made me love Junichi terribly.

Actually, we were really siblings, and we couldn't be in a romantic relationship, let alone get married.
Even so, we were constantly indulging in sex and trying strange sexual things. How could this
be?

He had ejaculated five times in a row, but this time he couldn't ejaculate easily. However, with the stimulation and
excitement , his penis grew larger and harder, almost to the point of bursting, causing Junichi to feel pain.

"Junichi, don't you want to ejaculate yet?"

"Hmm...just a little more...Mizuki...what about you?"

"Hmm! Don't worry about me, just ejaculate!"

At that moment, I put my mouth to Junichi's ear and told him while sighing.

"We siblings...doing these things..."

"Hmm...hmm..."

Suddenly, Junichi hugged me tighter and thrust harder in his waist, thrusting violently.

I said again, "We are siblings...we are siblings! Aren't we..."

I said between breaths, and then something unbelievable happened.

Suddenly, a wave of pleasure surged up, making it hard to breathe. That big, hard rod kept
scratching with each in-and-out motion, making my entire lower abdomen feel numb. At this moment, I couldn't bear it and arched my back,
moaning convulsing, even my buttocks were shaking.

Then, after an unknown amount of time, when my consciousness returned naturally, I realized
what had happened .

Although Junichi had withdrawn his penis, I still felt the weight of my entire body on me;
I was truly exhausted.

When he used his fingers to penetrate my naked body from below, I saw his almost asleep face, his eyelids
half , and then he kissed me with a satisfied smile.

This was the first time in all my sexual encounters with Junichi that I had truly reached orgasm.
Could it be that my body truly couldn't be without Junichi? As his older brother, he probably thought the same thing!

A Japanese translation? It reminds me of that most erotic Japanese novel.
This story is probably an excerpt with added enhancements, right? Wow! I really can't understand the Japanese way of thinking!! So perverted! Is it a Japanese novel translation? Having a sister like that wouldn't be bad, haha. It's probably translated by the Japanese; I prefer Chinese styles, they're more accurate. Japanese novels? They
're never as good as Chinese ones.
I don't quite understand it. It's so perverted, especially
since
it's about "Japanese people," otherwise it would be utterly disgusting! The details are described very well! Unlike other genres, Japanese works often exaggerate male sexual ability, which is a characteristic. Another characteristic is the abundance of psychological descriptions and detailed descriptions. I've saved this "good stuff" about young children and incest; I'll keep it on my phone to study from time to time
.

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