My sister is a slut. (Author: zhqtao)

My Sister is a Slut

Author: zhqtao
Word Count: 12000

Chapter 1

Summer vacation has started.

For a long time now, I won't have to brave the sweltering heat to go to school every day, nor will I have to worry about staying up late watching porn online and
being late the next day. It feels like a heavy burden has been lifted, and I feel completely relaxed. Unexpectedly, Dad has ordered us not to go out this
summer vacation without a reason. The reason is that my sister and I will be facing the college entrance examination next year.

I don't know what the situation is, but my parents and the parents of my classmates are all on edge,
nervously anticipating a major crisis.

Although my parents are very good at making money, neither of them is highly educated. They ran a business in their younger years and now run a clothing factory in
town . Their biggest wish right now is for my sister and me to get into university. They
can't help us with our studies, so they can only use all their energy to discipline us. Therefore, my sister and I are confined to
the house, trying our best not to be distracted from studying. To balance work and rest and avoid damaging our brains, the housework is also divided between
us , but this is paid work, and we can get paid. They emphasized that my brother and I should help each other,
make progress together, and supervise each other; there would be a reward for reporting any violations.

It felt so good to wake up naturally. When I woke up, the sun was high in the sky. Mom and Dad had already gone to the factory.
After washing my face and eating the breakfast they left for me, I watched TV. Around 10:30, my sister finally came
downstairs . Then she plopped down on the sofa next to me, hugged one leg, rested her chin on her knee, and stared
blankly at the TV screen, looking like she hadn't woken up properly.

Lately, when I'm close to her, I feel like a certain scent emanating from her is wafting
into . I can't quite put my finger on what it is, but now I think it's a woman's scent. I can even be inexplicably
certain that the scent is coming from her cleavage or crotch. This thought makes my heart race and my breathing heavy,
so the scent seems even more pronounced. A lewd thought instantly took over my mind, and I couldn't shake it off.

My sister and I are actually twins, but we look surprisingly alike. In terms of appearance, it seems
my sister has taken all my good features. I'm 1.65 meters tall with an average face; I'd definitely go unnoticed
in a crowd .

My sister is half a head taller than me, with a smooth, fair, oval face, almost flawless. Her high, straight
nose and full lips exude a wildness within their refinement. Her eyes aren't large, but they complement her face perfectly,
making her incredibly lively and alluring. These days, there are so many busty 90s girls online showing off their V-shaped faces, all with
excessively large eyes, which I find disgusting. My parents are decent-looking, but judging solely by their appearance,
I wonder if I was adopted.

At this moment, she was still lazily staring at the TV, her arms now crossed over her chest, her arms pressing down on a
noticeable bulge. Her bare feet were propped up on the edge of the sofa, her legs bent in an M-shape and spread out to the sides. Underneath the soft fabric of
her pajama , the curves of her buttocks and thighs were clearly visible, and the shape of the fleshy mound between her legs was even discernible. My sister
has a great figure. The subcutaneous fat accumulated during puberty in the last two years has made her originally slender figure fuller and
more curvaceous. My best friend He Wei once said to me sourly, "My sister must be frequently 'pleased' by men,
otherwise how could a young girl have such a mature and alluring figure?"

I chased after He Wei and gave him a good beating. But he wasn't the only one I'd heard this from.
Several years ago, when we were in the same junior high school, I heard rumors about my sister dating boys. She didn't get into the town's high school,
so my father paid to send her to a private high school in the county. We weren't in the same school anymore, but I still heard
gossip time to time.

Thinking about it, an image suddenly flashed into my mind: my sister's snow-white, voluptuous body being brutally fucked by another boy
. My sister twisted her body, spread her legs, and moaned
as … Although I'm still a virgin, because I watch a lot of porn, my brain
has a fairly rich collection of such images. My penis involuntarily became engorged and erect, and at the same time, a sharp, aching pain welled up inside me. A
crystal-clear thought surfaced—I want to fuck my sister.

Although I wondered if I was going crazy, my mind a turmoil of emotions, this thought remained unwavering
and clear. I was serious; I really wanted to do it!

In the past, when I masturbated after watching porn, the images of my sister, even my mother, would
appear . But after ejaculating, I would feel guilty for a long time, and then I would have to
justify myself for another long time before I could forgive myself. But this time, it wasn't just a fantasy; I really wanted to have sex with my sister. To insert my swollen, rock-
hard penis into my beautiful sister's cunt.

Suppressing the urge to immediately push my sister onto the sofa and force myself on her, I thought it was
best .

Compared to my sister, I was more confident in my intelligence. I had always been a good student,
something my parents were very satisfied with, and they often boasted about it in front of others. Perhaps there was no other suitable space for me to showcase my abilities at school
, so I could only bury myself in my studies. Fortunately, my brain is pretty good at handling these things;
problems that are difficult for others are easy for me to solve. I don't always get first place, simply because I
don't want to. In other words, to put it bluntly, if I wanted to be number one, no one else would get it.

When I graduated from junior high, I chose the only high school in town. Several of my close friends were there, and
I didn't like boarding school far from home, so I didn't go to a better school. The high school curriculum didn't put much pressure on me
either .

My dad's stay-at-home order didn't affect me much either; even if I left home, I didn't know what to do. Most of my
friends are similar to me in temperament, and I had planned to spend
the holiday reading, surfing the internet, and sleeping. However, I know my sister doesn't think that way. She makes many phone calls every day, and sometimes she even
goes to her room to listen in. Yesterday, a boy called and asked her to meet him outside the door. Maybe
my sister doesn't like him, so she asked me to go out and tell her she wasn't home.

Seeing her so listless, she must really dislike being cooped up at home all the time.

"Sister, how about I give you a suggestion?" Although I really wanted to plan it out properly, I still held back.
I couldn't help but strike. I tried to appear calm, but inside I was terribly nervous, struggling to keep my
voice from trembling.

She glanced at me, frowned, and then looked back at the television screen. "What is it?"
she asked listlessly.

"Sister, I've realized I'm practically unpopular with women. I feel like the girls in my class don't really pay attention to me. I
really want to know what it's like to have a girlfriend."

"You? I think you should stick to your studies." Her expression suggested she wasn't planning to continue the conversation.

"My suggestion is this," I turned and sat cross-legged on the sofa, facing her. "Do you want to go out?
You don't want to stay home with me all summer, do you? — But because of homework and chores,
Mom and Dad want me to keep an eye on you. So you can't go out, right? Actually, you really want to go out."

"Hmm? Are you trying to trick me into revealing this? And then betray me?"

My mind raced, but like an idle engine, it wasn't working at all. She kept repeating the same question:
"What did you say? What did you say?"... I could only take it one step at a time. I couldn't be
the spineless coward she used to see on this issue. I had to be thick-skinned and ruthless.

So, I mustered my courage and said, "What I mean is, how about I help you with chores and homework?
The condition is that you become my girlfriend. Of course, you still get the wages Mom and Dad give you. How about that? You see, you don't
lose anything, it's a win-win situation."

"You're interested in playing house?" She turned to look at me, somewhat puzzled.

After a while, she realized what I meant and angrily scolded me, "What do you mean? Are you trying to
take advantage of me? Are you out of your mind? You're my brother, you want me to date you? Have sex with you? Shut up and get
out of here. Think about what you're doing! You're crazy! I have to tell Mom and Dad, you'll regret it.
From now on, you'll have to do all the chores yourself!"

I forced a calm smile, but my mind was blank. I regretted my madness after being rejected.
But since it was already done, there was no turning back; I had to grit my teeth and continue. My older sister isn't exactly slow on the uptake;
she seemed to understand that I wanted to sleep with her, saving me the trouble of beating around the bush. More importantly, she didn't go crazy with shock. I
should still have room to continue this entanglement.

"You want to tell Mom and Dad? Where's the evidence? I'll definitely deny it to the death. They don't believe I would do that.
Don't forget, I'm a model student!" My reputation is indeed good; I have no blemishes at school,
and recently I received praise from the school for volunteering at a mental hospital. Our town is a semi-rural area,
with several factories, a detention center, and a mental hospital. When people hear about mental hospitals, their first
reaction is danger. Actually, I think they're quite normal, just talkative and acting strangely, but I didn't find them aggressive
. I went to work there mainly out of curiosity; I didn't expect the school praise to be so exaggerated.

"But don't forget, Mom and Dad know you can lie; they've seen through you more than once."
Hearing her tone soften, I needed to further de-escalate the conflict.

"That was so many years ago! I was still young then."

"Tch," my sister rolled her eyes at me and said nothing more. She wasn't going to argue with me about this anymore.

The atmosphere became a little awkward, and I couldn't think of anything new to say. After a while, I couldn't resist
trying again. I felt like a pathetic, shameless wretch, but my desire seemed to be growing
stronger .

"Sis, think about it again? So much work, so much homework, it's exhausting. You know what I'm thinking,
let me do it once? Even though I think about it every day, I've never had a chance to touch a girl… Besides, my penis is small,
I won't last long… You don't have to waste your time, I can do all the work for you, and then
… you can go on a date." Never having been with a woman before, and not being able to last a few seconds—that was all bullshit to
my sister .

"I don't date boys."

"I mean, you and girls…"

My sister looked at me like I was an idiot, glanced at the clock on the wall, and said, "Time to go
work in the yard." Then she got up from the sofa and went upstairs. I stared at her back, finding her swaying
gait sexy and alluring. Her two pert buttocks swayed joyfully with the rhythm of her walk. Having broken free
of his inner taboos, his gaze roamed freely over his sister's body, unwilling to miss
a single opportunity.

When his sister came downstairs, she had changed into athletic capri pants and a t-shirt, her hair casually tied back. The dark
, tight pants accentuated the snow-white skin of her exposed calves.
The alluring curves of her thighs and buttocks, covered by fabric, made his penis rise again in respect.

Our yard was very spacious; Dad had specially bought a plot of land at the edge of the village and built it, three times the size of an average
family . A cement path led to the house in the middle, with a vegetable garden on the left and a
pond on the right. The pond's inner walls were tiled to serve as a swimming pool, but no one had time to maintain it, and it was filled with
rainwater and grime. The vegetable garden was laden with tomatoes, cucumbers, and beans. These past few days, we've been picking a basket of
vegetables , far more than we can eat ourselves, so Dad takes them to the factory canteen every morning to cook for the workers.
Luckily, we're both on holiday, otherwise these vegetables would have rotted in the yard.

My sister was picking tomatoes with a bamboo basket, and every time she leaned down, her round bottom sticked up high, the
outline clearly visible through her roundness. I followed behind, greedily staring at her bottom and the bulge between her legs,
completely mesmerized. The sun overhead was scorching. Soon, my sister's exposed skin was sunburned, and her face
was covered in fine beads of sweat. When she got up to wipe her sweat, she noticed my embarrassing behavior.

"What are you doing following me!"

"I think you're about to get sunburned, you should consider my suggestion. But sister, even if you
don't agree today, it's okay. Any day is fine, I'll wait!"

"Forget about it!" Although the walls around the yard were high, and our detached house had no
neighbors next door, my sister still lowered her voice guiltily. I couldn't think of any good ideas for the time being, so I just
stayed and helped her with the work. While she bent over, I took advantage of her by staring at her breasts and buttocks from different angles.

After a while, I felt I couldn't take it anymore and decided to relieve myself with my hand, otherwise my penis might burst.
I turned and ran to the bathroom, closing the door. The moment my pants were down, my engorged, purplish-red penis sprang out. It wasn't small
at all , as I'd described to my sister; it was thick and hot. Holding it, I could feel it
throbbing with each beat of my heart. Just as

I was about to stroke it, my eyes caught sight of the laundry basket next to the washing machine, piled high with clothes to be washed.
Suddenly , a thought struck me: if there were any of my sister's panties in there, they would definitely smell of her cunt! I
frantically pounced on the basket and started rummaging. And there it was—black panties with delicate lace trim. Judging by
the size, they were probably my mother's. My heart pounded with excitement, and my hands trembled as I pulled open the crotch, right next to her vulva, and
found some yellowish stains. Touching them with my fingers, they weren't completely dry, like semi-dried paste. I held them
to my nose, inhaling deeply, impatiently. A pungent, foul odor, but it wasn't just the smell of urine; it contained
a scent that made my blood boil and I couldn't resist.

I was so excited I almost screamed, inhaling deeply with all my might. Then I crumpled the fabric into a ball
and held it to my nose, inhaling deeply to mask the pungent smell, replacing it with a rich, strong feminine fragrance.
It was hard to describe, but equally exhilarating. I alternately unfolded and crumpled the fabric, savoring the different scents,
while simultaneously stroking my penis rapidly and vigorously with my hand. The pleasure was intense, like a whirlwind of desire, the fabric rubbing against my penis
.

The soft fabric provided a completely different sensation than my hand, and the psychological stimulation was unparalleled.
Although I wanted this pleasure to last longer, a sudden, intense wave of pleasure, like being struck by lightning,
almost made me faint. My hot penis convulsed repeatedly, and thick streams of semen gushed out. I lost count of
how many times I trembled. When I finally came to my senses, I found the underwear in my hand smeared with semen, sticky and wet, with drops
dripping from between my fingers onto the floor… Exhausted but satisfied, I cleaned up the stains…

I was incredibly grateful that my sister hadn't told Mom and Dad. The next few days were still
filled with endless chores and being bombarded with homework questions by Dad. My sister seemed increasingly impatient. I stole
two pairs of underwear from her bedroom; with them, the time didn't feel so unbearable. My intentions were clear,
so being caught stealing underwear wasn't so shameful or a big deal. Meanwhile, I kept an eye out for
opportunities , ready to intensify my offensive and seize the moment.

"If you can't accept me right away, we can... take it slow."

"I really misjudged you before, thinking you were a pushover."

"Hehe, not at all, just a wolf in sheep's clothing. So, what's your thought?"

"Would I do something so despicable just because you do some chores for me?"

"Not at all despicable, I've been wanting to do it for ages! Just consider it helping me, okay? And you're not
losing like doing it?"

"It's not that I don't like it, it's disgusting!"

"How about just kissing?"

"Just thinking about it is disgusting, kissing you is even more disgusting, stop bothering me..."

"I swear you don't have to worry about anything. If you fulfill my wish, I'll do whatever you say from now on.
I'll never make you unhappy, and I'll never blackmail you..."

...

"Even just letting me hug you is fine..."

...

Washing dishes, doing laundry, cleaning the bedroom, living room, kitchen, and yard—many chores were much more tiring and incredibly
dirty . And my sister hadn't made any progress in her daily practice when Dad checked. I felt my sister wasn't a very principled person, but I
believed she would take my advice to heart more and more.

It was time to clean the garbage pit in the yard. The pit, several cubic meters in size, was built with bricks and cement.
Garbage was usually stored there temporarily, and then pushed to the centralized garbage disposal
area . The pit, which had been overflowing for days, was emitting a pungent odor. To
prevent flies, a lot of poison had been sprayed. Dead flies covered the surface. My sister frowned deeply,
covering her nose and mouth with her hands. Seeing this, I deliberately used a fork to vigorously stir up the things on the ground. Spoiled
leftovers, rotten vegetable leaves, watermelon rinds, toilet paper… many other things were indistinguishable, and as I stirred,
the stench immediately filled the air.

My sister tried to run away, but I stopped her.

"You do it yourself…"

"Deal?" I smiled wickedly.

Her face turned bright red, and after a long pause, she finally said, "I can only hug."

"Then, you have to keep your word. Also, you can't resist if I touch your butt
." Since my sister had given up on her shame, I wanted to press my advantage. "It's just touching your butt, it won't do anything." I said, reaching for her
butt .

"...Go do your work first." My sister turned away.

"No problem, don't worry, I'll only touch your butt. If I touch you anywhere else, you can punish me by not touching you for a day."

"Okay... okay. I'm going back to my room, you go take a shower after you finish your work!" I almost laughed out loud. Did she
not understand what I meant or was she pretending not to?

"Wait a minute!" My sister was stunned, looking at me with a complicated expression, indicating that she didn't know what I wanted to do. I met
her gaze and looked at her steadily, then said, "Pinky promise."

My sister naturally extended her index finger and hooked it with mine, then we pressed our thumbs together and pushed back and forth a few
times. A warmth suddenly rose from the bottom of my heart, and memories surfaced. My sister and I grew up together. Although we didn't have any
telepathy or anything like that, we were the people who shared the most secrets with each other. When we're hiding something from adults
or teaming up against other kids, pinky swearing is a ritual to declare our close relationship.

It took almost an hour to finish, and after a quick tidy-up, I went to take a shower. I
washed myself twice with soap, making sure there were no blind spots, to avoid leaving any lingering smell of trash. My penis remained erect, painfully so.
Downstairs, I found my sister sitting on the sofa, her posture a bit stiff and awkward. She must be very nervous.

I really wanted to go over and hug her tightly. But I also felt guilty, so I changed my mind.
So I ordered her, "Take off your pants and lie down on the sofa."

Her face instantly darkened: "I think you promised you could touch my butt, but you didn't say you had to take off your pants
..."

"But I said touch her butt, not her pants." My tone left no room for argument. If she objected now,
how could I continue?

With my insistence, my sister finally bent down and pulled down her pants, leaving only her light blue underwear. Her smooth,
white thighs immediately aroused me. My penis squeezed the underwear hard, as if trying to break free. I
slowly approached, my sister with her back to me, arms crossed over her chest, forgetting my command to lie on the sofa. I stroked her
two round, firm buttocks, feeling the pleasure in my hands for the first time. My sister's body trembled, as if only then
realizing it, she moved and lay on the sofa, burying her head and pressing her legs tightly together, her buttocks
hardening from the effort.

"Since you're going to be touched anyway, why don't you relax and enjoy it, sister?" I tried to comfort her. Despite my restraint,
my voice was still off-key.

I squatted down, my face very close to my sister's buttocks. I couldn't let her resist, so I kept
my promise and gently stroked my sister's buttocks with both hands, sometimes lightly grasping and kneading them, the snow-white flesh
changing shape under the pressure of my palms. My sister's breathing became heavy and irregular. I tentatively moved my face closer,
letting my breath fall on her buttocks, while secretly
inhaling . Finally, I couldn't resist licking her, my salivary glands seemed to become excited, and I had to swallow my saliva.

My sister felt my kisses and licks, and let out an ambiguous cry of annoyance, but she didn't
do anything. So my lips and tongue became bolder, wandering up and down her fleshy buttocks,
leaving patches of moisture. Occasionally, they would glide across her thighs, but my sister's tightly closed legs didn't relax, and I was afraid of arousing
her disgust, so I wisely stopped where I couldn't go any further.

I continued like this, feeling that my sister's body was no longer so tense. I raised my head and hooked my fingers around
the waistband of my sister's panties, preparing to pull them down. My sister didn't say anything, but suddenly reached out and grabbed my wrist.

"You promised I could touch your butt whenever I wanted..."

"But I can't let you see that part of me." Her voice was soft, without the previous anger and arrogance.

"I just want to feel my butt better... Okay, actually I really want to see yours there too... It's just
the two of us at home now, I promise I'll keep it a secret. Sister, please... I really won't cause you any trouble." I
gently pulled my sister's wrist away with my other hand, and she didn't insist anymore. I took a deep breath and pulled my sister's
panties down to her thighs. My sister's most private place was now exposed to me. Had I conquered
my sister?

I didn't have time to think about these questions; the sight before me was quite unexpected. My sister's fair vulva was covered with
so much hair. It was a messy, dark, and robust thicket covering the fleshy mounds and labia majora on both sides of her vulva, extending all the way to
her anus . Her mons pubis was high and swollen, appearing even whiter and more tender against the backdrop of pubic hair.
The skin was slightly darker, and her dark red labia minora, like bean pods, stretched from the beginning to the end of her vulva, but
were more tender than any I had seen in movies. They looked like two taut, thin lips covering the opening, rather than drooping loosely. To get a better
look , I forcefully spread my sister's legs apart. She let me do as I pleased, neither cooperating nor resisting.
I felt I should comfort her at this moment.

So I moved in front of her, cupped her face with both hands, and turned her around. Her face was burning hot, and her eyes
were tightly closed. I lowered my head and kissed her soft lips, tentatively inserting my tongue into her mouth. I
carefully licked the inside of her lips, where her teeth were. With a little force, I could squeeze past her teeth and lick her
tongue. While sucking on her saliva, I caressed her breasts. Although I couldn't see their shape, I could still feel their fullness and elasticity through her clothes
. After a while, my sister's mouth responded. First, she sucked on my tongue with
her lips , then slowly her tongue came over and teased my tongue tip, sweeping back and forth, making
my tongue tip tingle and itch. After a while, her tongue also entered my mouth, and I groaned,
kissing her more passionately. Soon, my sister responded in the same way.

When we separated, my sister's lips were still slightly parted, glistening with a bright luster. Her eyes
radiated seductive and alluring light. "Is that enough?" My sister seemed to wake up from her previous ecstasy.
I thought to myself, the real show hasn't even started yet, how can it be enough? I moved on to my sister's buttocks, unable to restrain myself any longer.
I forcefully parted my sister's buttocks, then buried my head and licked up and down between her buttocks with my mouth. When
my tongue swept over her anus, I pushed it in forcefully with the tip of my tongue.

My sister twisted and turned, trying to get rid of me. She propped herself up on her arms and turned her head back, saying, "Stop, it itches..."

I really wanted to thrust my throbbing cock into her cunt right now, but I didn't want
her , so I decided to give her plenty of teasing. Actually, I had just noticed that there seemed to
be some fluid seeping out of her cunt. I spread her legs, moved to the sofa, and knelt behind her,
burying my face in her cunt and licking. Perhaps because her anus was cleaned very well, I didn't smell any feces, but
when I squeezed my tongue inside, I felt a faint saltiness. Although I didn't dare to touch her boldly yet, I kept wanting
to smell her cunt from time to time. The real cunt smell was much more vivid than the smell on her underwear. Although my tongue was a little stiff and sore, I didn't want to stop at all. I kneaded her buttocks even harder with both hands. After a long time, my sister finally groaned under
my intense licking. 　　I stood up from the sofa, pulled down my shorts, and my thick cock sprang out. "The show's about to begin!" 　　"What do you want to do?" My sister was startled, but her eyes didn't leave my penis. 　　"Didn't you allow me to touch your ass? I didn't say I'd only use my hands." 　　"Didn't you say your penis was only a little bit?" My sister rolled her eyes at me, looking quite cute. 　　"I don't know how it suddenly got so big. 　　" "Anyway, I'm not going to do *that* with you." 　　"Don't worry, I definitely won't do anything reckless... Hey, you've probably seen bigger ones, right?" My sister turned her face away, not answering me. I held my sister's buttocks down to prevent her from getting up and running away. Then I wedged my penis between her buttocks, squeezing her buttocks with both hands, rubbing my penis back and forth. A wave of pleasure made me cry out, which made me rub even faster. 　　My sister turned her head, looking at me with a mixture of anger and intoxication. I thrust into her buttocks while...

I leaned forward, wanting to kiss her again.

"No! You just licked that place, it's disgusting."

I guessed she would have given in if I had forced a kiss. But I didn't. I listened to her
and gazed deeply into her eyes. I increased the speed of my thrusting. It seems my stamina isn't just
a few seconds.

"You didn't say it was disgusting when I licked your asshole."

My sister turned her head away again. I pulled back and focused on rubbing my penis. Before
long , my testicles and prostate contracted suddenly. I quickly pulled my penis back and frantically masturbated.
Thick streams of semen sprayed violently onto her snow-white buttocks. My sister heard my groan and turned around. Seeing my thick
penis ejaculating semen, her eyes seemed to ignite. I squeezed out the remaining semen from my penis
and dripped it onto her anus. This must have been my most intense orgasm.

After I finished ejaculating, my sister seemed to realize what had happened and wiped her buttocks with her hand. Looking at her face, her palm was covered in
white semen. "How disgusting!" she exclaimed dramatically, her voice trembling with tears. She got up and wiggled her hips
as she ran towards the toilet. The relief of finishing made me slump onto the sofa. We'd come this far; I didn't need to
worry too much about what would happen next. Although I was still unsatisfied, I didn't plan to force myself on her again today. But then I thought,
what if she really got aroused today and wanted to leave when I helped her with chores tomorrow? She might
end up with someone else. When I seduced her, I made it a condition that she could leave. Thinking of this, I decided
to take the risk and go all the way today.

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