[Becoming a prisoner of her brother's sexual desires]

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
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,
truly repulsive. This is one of the reasons 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 odor.
Just smelling this odor 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 masturbate, but in the end, I can't help but break my vow.
And this makes me hate it even more—it makes me unable to resist its evil temptation—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 one unbearably aroused. If you
are then "fucked" by him, you will need them for a lifetime.
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 my heart flutter but also incredibly excited; my heart pounded
, and my vagina secreted fluid. The pleasure was indescribable.
Sometimes, I would insert the pointed end of a comb into a woman's most mysterious and sensitive spot, enduring the pain
as I pushed it deeper and thrust in and out.
After a while, when I pulled the comb out, drops of blood would flow from the opening. This sight made me even more excited,
panting and unable to control myself for a long time.
Although I punish my abhorrent genitals through self-harm, the resulting excitement
is undeniably a mysterious kind of pleasure.
However, I don't know why I have such an extremely contradictory personality.
Currently, I have sexual relations with two men simultaneously. Although they only bring me sexual pleasure, I
use them to perform actions I cannot do myself, as a way of punishing my genitals.
My parents, of course, don't know about my strange sexual fetish or my simultaneous sexual relations with two men,
and I hide it very well. Even when I come home from school, I don't go through my parents' room, but go directly 　　to my room on the
second floor of another building. 　　That night, around 11 PM, my two sexual partners, Kiyoshi-kun and Nishida-kun, quietly came to 　　my room on the second floor. 　　Actually, it was because earlier that day, on my way home from school, I went to Nishida-kun's apartment, and 　　without Kiyoshi-kun's knowledge, the two of them had sexual relations alone. 　　Because I insisted that Nishida-kun touch my genitals, rubbing, playing with, and licking them, I made him a little unhappy. 　　After doing all this, I was also very tired and didn't know how to describe it. Anyway, my genitals were hot and swollen, and I 　　felt like something was rubbing against my sides. 　　I couldn't straighten my back, and I felt like something was wrong with my whole body, but I didn't want Kiyoshi-kun to suspect anything, so I tried my best 　　to please him. 　　Because Nishida-kun sarcastically said things like, "Miss Mie, you're very energetic today..." 　　and other such cold remarks that Kiyoshi-kun couldn't understand the underlying meaning of, mocking me. 　　As usual, Kiyoshi-kun pressed down on me first. It was the first time I felt that a man was so heavy, so I told him that I was very tired today and felt a little uncomfortable, so I might not be able to fully cooperate. I told him that I would 　　do whatever he 　　wanted as long as he liked it . 　　As soon as I finished speaking, Kiyoshi-kun hugged me passionately and kissed me ardently. 　　"Tonight, Michie 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. He caressed me passionately. 　　But because my genitals were swollen and painful, no matter how hard Kiyoshi worked on me, I felt numb, 　　without any sensation. 　　Instead, I felt like a cloth laid out under his body, my whole body trembling as he squeezed and rubbed me, 　　as if he were the only one having sex with me. And he was about to ejaculate on me. 　　Next, Nishida held me and fucked me from the side. He always used this side-lying position and would occasionally 　　stimulate my clitoris with his fingers. Finally, I felt 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, moaning. 　　At that moment, my mind went blank, I was completely unconscious, I only felt "pleasure," and 　　I didn't even know when Kiyoshi-kun and Nishida-kun 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 came out, and it felt like I was back to that old feeling.

That's how it was.
In the evening, after I recovered, I thought about what happened last night. I was still a little excited and couldn't help it.
After taking a shower, I went to the front of the house to watch TV while thinking. Then 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 and leaving.
Around 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 pounding like waves, and I felt like I was sleepwalking, unconsciously
walking towards Nishida-kun's apartment. I was really—
2
At Nishida-kun's apartment, I saw three faces, including the newcomer, expecting me. When I saw the
young man who was supposedly the newcomer, I was taken aback.
His name is Junichi Kubo. He lives in a bustling area where his family runs a bar. His mother
used to work at the bar, and she and my father were once in love—a fact
known to everyone in the neighborhood. After she married someone else, Junichi's stepfather funded the establishment of the bar.
My parents knew about the bar's opening.
However, as time went on, it became a topic of conversation. My mother often used it to criticize my father, leading to
frequent arguments between them. But despite the arguments, they never did anything drastic.
Junichi is my father's son with that woman. We don't have the same contact as other relatives
, nor have we ever met for any reason, but we are indeed siblings.
Although he inherited my mother's beauty, I think he looks more like my father. He is my father's son;
that's undeniable.
I knew this at the time, but the relationship between my father, his woman, and my mother made me
feel somewhat restrained.
Now that we've met openly, even if I try to treat him like any other person, it doesn't change
the fact that we're siblings.
Regardless, I still feel uncomfortable and have a strange, inexplicable feeling. But he's 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 are complex and intertwined, our sexual relationship improved our hostility
and even fostered some feelings. Because of this, I gradually distanced myself from Nishida and Kiyoshi and entered Junichi's world
.
Along the river is a city known as a bustling district, and Junichi's home is there, a two-story shop
. However, he lives alone in a small apartment by the river, ostensibly to study hard.
He only comes to this small apartment when he needs to study, sometimes spending the night there, sometimes
returning home.
Like several other like-minded individuals, he disliked living in places his mother could see and control, so living
here had a somewhat reclusive feel to it.
One day, I received an invitation from Junichi-kun. He told me that the house was extremely secluded, usually occupied
only by himself, and even more mysteriously quiet at night, undisturbed.
He insisted that I visit, no matter what.
Filled with curiosity, I accepted his invitation and that evening took the opportunity to
meet him alone.
I had imagined that this was Junichi-kun's study, a quiet and scholarly place, but it was
the complete opposite of what I expected. It was a specially designed luxury residence with a small but fully equipped
kitchen, and the living room was furnished with beautiful and expensive furniture.
Furthermore, the facilities, starting from the kitchen, were so complete that living here year-round would be convenient.
Although it faced the sunlit river to the south, it was far from the shore, so no matter what you did inside,
you wouldn't have to worry about being seen. I couldn't find a better, more secluded house.
Before coming here, Junichi and I had agreed that we would be like any other couple
, having fun and doing whatever we wanted. And indeed, we were really happy that day.
Because we were siblings, we didn't need to be polite or break the ice; there was nothing
to hide from each other. We could talk freely about family matters, private affairs, and 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 first
, while I felt no pleasure at all.
"We're siblings, isn't it strange to do this?"
If I said that, Junichi would casually straddle me, 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 meet 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 house.
The house 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 had a penis just like an adult's.
When he wasn't dressed, you could see an old scar on his right abdomen from where his appendix had been opened.
For me, who had never before experienced playing with each other's genitals naked in a bright room,
or having sex in various positions, doing these things in Junichi's house was...
At that time, I really felt embarrassed.
The real reason was that when I was naked, my skin was dark, my breasts were flat, and my body
wasn't very full. I was dry and flat, yet I was particularly fat from my stomach to my thighs.
Compared to Junichi, who had a slender and well-proportioned physique, I really looked inferior.
As for my genitals, Junichi's penis was exceptionally large and hard from every angle, always
giving off a masculine feeling.
The glans was mushroom-shaped and gleamed with a bright flesh color,
always throbbing aggressively with the rhythm.
Compared to his penis, my perpetually wet and unremarkable ugly genitals looked
like filthy garbage to be discarded.
But despite what I thought, 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 filthy, urine-smelling genitals as a delicious feast
, sucking and licking them, frequently burying his face between my legs and inhaling the stench.
I reciprocated in kind. I would usually hold Junichi's penis in my hand, then
touch his pubic hair with my nose, or gently suck and pluck it with my mouth.
Of course, I would also suck on the glans, or lick and rub it with my tongue for
oral sex. Finally, I would rub his saliva-covered penis with my hands until he ejaculated. During
this time, 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 if bitten by thousands of insects.
When I saw this excited scene, I was also incredibly excited. Although having sex with only one person doesn't give me an orgasm, 　　I can orgasm
if my clitoris is stimulated with my fingers . 　　I told Junichi about this beforehand and asked him to do it during intercourse. Sometimes we even 　　orgasmed at the same time. Sometimes we competed to see who could 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 peed. When I felt 　　the hard object being pulled out along with my urine, I quickly rolled over. At that moment, the strange-looking, thin 　　thing fell off as I rolled over. 　　While Junichi was frantically looking for something to wipe the urine off, I handed 　　him my underwear to wipe the wet area. 　　"What's wrong? What's that?" I asked him. 　　Junichi then showed me the long, green, rubber-tube-like thing. He said, "This is 　　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, he hurriedly tried to catch it with his mouth. Just as he was about to drink it 　　, I rolled over, making a mess. 　　"I don't know what you were doing that made you roll over, but it's disgusting that you're trying to drink urine," he said, 　　turning my face away. 　　Junichi laughed and said, "But since it's your sister's urine, how can it be dirty? Not at all 　　..." 　　"Ugh...you're so annoying...then next time I'll drink your urine too!" 　　Junichi said he wanted to do it again, but this time he prepared a towel, a basin, and a spoon, and then 　　made me lie on my back with my legs raised and spread, just like before. He picked up the water lily stem again and 　　forcefully inserted it into my genitals. 　　It still hurt a little, and it wasn't 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 adjusted himself. 　　"Go ahead and pee if you need to, is it alright?" 　　Junichi replied, slowly pushing the tube in a little further. At this moment, I felt 　　a slightly painful pleasure. 　　Urine overflowed from the tube, flowing onto the towel that had been placed under my buttocks, instantly 　　wetting the towel. 　　Meanwhile, Junichi was enjoying some kind of delicious treat, continuously sucking up 　　the urine flowing from the water lily paste. 　　Finally, the urine stopped flowing, and my bladder felt like a deflated 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 at all. 　　Once, I even used a rubber tube that Junichi bought from the pharmacy to insert into the glans of his penis. 　　Although it caused a fracture, it was inserted quite deeply, and warm urine would 　　flow out, without spilling a single drop. I then drank it through the tube. 　　This behavior of ours is probably what is called "sexual perversion"! Despite this, I found it 　　unexpectedly exciting. 　　3 　　Not long after, Junichi bought some so-called "drug that would make one more energetic after injection" from someone and 　　gave me an injection. 　　He injected the syringe directly into my clitoris. 　　Normally, the drug is injected into the wrist, but Junichi deliberately injected it into my clitoris. After 　　a while, I felt a heat in my lower back area, which felt comfortable, but I didn't experience the expected 　　sexual excitement. 　　Knowing my fetish, Junichi would sometimes use an experimental glass tube, fill it with hot water, seal it, 　　and forcefully insert it into the entrance of my private parts to bring me to orgasm.

Despite his elaborate arrangements— 　　inserting and withdrawing the glass test tube, licking my labia, and finally inserting his already erect penis—aiming to bring me to orgasm,
I felt no pleasure.
Even so, the fact that I could have sex with Junichi was one of his attractions. 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 this time of indulging 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 bold. They often sneak into my room, and the three of us sleep in the same
bed until dawn, so that we can have sex again after daybreak.
The so-called pleasure only occurred when both of them took turns performing the act twice. Of course, sometimes
even two acts each didn't produce pleasure, but generally, it did.
Kiyoshi touched my clitoris with his fingers, while Nishida inserted a glass test tube into my vagina, continuously
masturbating me like this. The feeling at that moment was truly extreme. If they continued to masturbate me with even more effort,
I would eventually lose consciousness and moan incessantly.
Although I had sex with three men without interruption, I showed no 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 with the bleeding.
If sperm is ejaculated into the egg while it's in the uterus, pregnancy will occur."
In other words, if there is no sexual intercourse during menstruation, pregnancy will not occur.
But my thoughts were the opposite of hers. Once, I asked Junichi about this and what he thought.
"What? Did your friend say that? That's hilarious, does she even know anything! What comes out during menstruation are
already dead eggs, 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 like that.
"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 here. 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!"
"Just pay attention during your period."
"Hey! How big are they?"
"Hmm! Very tiny, almost invisible, a few millimeters in diameter, a truly minuscule creature
."
"Then how can we see them clearly?"
"Next time, Mie, when you have your period, we'll take a look."
Junichi-kun excitedly planned.
"I've been trying out a big invention lately!"
"What invention? Tell me, tell me..."
"Well! It's using computers to create artificial babies."
It's an astonishing idea, like the creation of IVF 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, is flowing 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 stench doesn't smell like semen.
And then there were the strange spasms I often experienced in my abdomen, near my uterus, warm and gentle, as if my entire abdomen
were very heavy, and sometimes I could even feel it spasming intensely!
Even slightly more vigorous intercourse, or intercourse lasting longer than usual, while
exhilarating, brought increasingly severe pain afterward.
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 calculated date beforehand.
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 carefully examine and study them.
He would insert his fingers, measure the depth of the hole with a ruler, and even explore the innermost
structure with his fingertips to see what it was like.
A few days later, Junichi showed me the semen he had collected after masturbation, placing it under a microscope.
Surprisingly, in this bright white semen, there were countless sperm, like a vast army,
shimmering like silver, swimming forward. This scene was clearly visible through the microscope,
truly breathtaking.
"Wow! So many!"
"As long as I insert my thing—my penis—all of these will go into your stomach!"
"Really? That's great… I've never seen these things before…"
When Kiyoshi, Nishida, and Junichi took turns having sex with me, if each of them did it twice, then
a total of six sperm would go into my stomach.
I thought incredulously, each ejaculation only yields one or two drops, yet one drop of semen contains…
There were thousands upon thousands of sperm hidden inside. So, after six, seven, or even eight times of intercourse,
how many sperm would actually enter my uterus?
Once, Junichi prepared a thermos and collected
the semen I ejaculated after masturbating him for about four hours—about five times.
He said the thermos kept the semen at body temperature, so it could be preserved for many days until
it smelled bad.
Although the first and third ejaculations were more plentiful, the fifth time the semen was
somewhat dried and clung to the glans, swaying in and out with the contraction and extension of the glans, as if struggling
to breathe. Finally, only one drop dripped out, much to my regret.
Lying on my back facing the bright light, I felt Junichi insert a thick glass test tube into
the opening of my vagina.
"This glass tube is hollow. When inserted into the vagina, it can reach the very innermost part, and it
allows you to see inside, just like a diving mask in the sea," Junichi confidently explained.
"Wow...you really can see the very innermost part!"
He then pressed his face between my open legs.
"That's right, it's a bottomless pit!"
I was also infected by his excitement, and I inexplicably became excited myself.
Afterwards, the two of us embraced under a low table with an electric heater, intensely playing with each other's genitals and
igniting a burning desire.
That day, I also took off my clothes and crawled into the quilt, then put my feet under the low table to warm them, and then
embraced the naked Junichi. After kissing, masturbating, and performing oral sex, Junichi finally
inserted his already erect penis into my vagina. And so began another round of intercourse.
One moment I'd be on top, sticking my butt up so his little brother could penetrate me from behind, or we'd have
a side-lying sex position, or even I'd sit and shake up and down while we slept. 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 things. What was
going on?
He had already ejaculated five times, but this time it was harder. However, with increasing excitement
, his penis grew larger and harder, almost bursting, causing Junichi 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!"
I whispered in Junichi's ear, sighing as I spoke.
"We siblings...doing this..."
"Mmm...mmm..."
Suddenly, Junichi hugged me tighter, thrusting harder and faster into my waist.
I said again, "We're siblings...we're siblings! Aren't we..."
I gasped as I spoke, and then something unbelievable happened.
Suddenly, a wave of intense pleasure surged through me, making it hard to breathe. His huge, hard penis
throbbed incessantly with each thrust, numbing my entire lower abdomen. I couldn't bear it any longer and arched my back, moaning and
convulsing, my buttocks trembling uncontrollably.
Then, I don't know how much time passed before my consciousness returned, and I realized what it was like when Junichi pulled out
.
Although Junichi had withdrawn his penis, I still felt the weight of my entire body on me;
I was truly exhausted.
As he reached down and touched my naked body with his fingers, I saw his face, almost asleep,
his eyelids half-closed. Then he kissed me, a satisfied smile on his
face. This was the first time in all our many sexual encounters that I had truly reached orgasm.
Could it be that my body truly couldn't live without Junichi? As his older brother, he probably thought the same thing!
[The End
]

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