My sister and I

That year I was 20 years old . Although I was still an immature teenager, I was already very curious about sex! At that time, because of my introverted personality, I didn't have a girlfriend! My sister was 23 years old.
She already had a boyfriend and was very mature. She had a great figure. Although her looks were average, her figure completely made people ignore her face! At that time, we lived in an apartment building!
My room was next to hers! The toilet and bathroom were on the south side of her room!

One night, before going to bed, I went to take a shower and suddenly saw my sister's underwear lying next to the bathtub! Suddenly, I felt an urge to masturbate! So I closed
the door, picked up my sister's bra, and started masturbating. The soft bra against my penis definitely felt better than using my hand! I lay in the bathtub
, stroking my penis up and down, and then grabbed my sister's panties. They still smelled of her genitals, and the white panties had some small stains
! The smell, sight, and touch stimulated me quickly, and I ejaculated!

After showering and returning to my room, I lay in bed unable to fall asleep. My mind was filled with images of my sister's bra and panties, gradually drifting into thoughts of her
body and imagining what the bra and panties would look like on her… The next night, when it was time to sleep again, I went to the bathroom to look for
her underwear, but I didn't see it. I was a little disappointed.

A while later, I heard my sister knocking on the door. She needed to use the bathroom, and I suddenly remembered something! Some time later, I finished making a periscope. That evening, my sister
was going to take a shower, so I immediately ran to her room. Her room had a very high window that overlooked the bathroom. I placed the periscope there and saw my
sister undressing! She was taking off her skirt, her back to me. I could see her full buttocks, encased in tiny panties, making them appear even more voluptuous and alluring
. She stood up and began to remove her bra. I saw her toss it into the laundry basket beside her, then place both hands on the edge of her panties and begin to
remove them. That moment felt like an hour to me, watching her buttocks gradually emerge. My penis began to harden. Slowly, her entire
buttocks were exposed. I mentally cried out, "Turn around! Turn around!!" The moment she finally appeared was frozen in my mind.
Although I couldn't see clearly, I could still vaguely make out her genitals. Dark pubic hair covered her vulva. I was excited, my lust rising
. I unzipped her pants with one hand, pulled out my already erect penis, and began to masturbate. Soon, the steam from her clothes obscured my
vision, and I reluctantly left her room to go to my own room and masturbate.

I couldn't sleep all night, constantly masturbating. Just thinking about her body gave my penis inexhaustible energy, causing it
to erect and ejaculate repeatedly until I was completely exhausted!

From then on, I frequently spied on her while she showered, and even when she went to the toilet! If I saw any of her discarded underwear, I would secretly take it back to my room at night to
masturbate. The soft underwear felt like my sister's body, enveloping my little brother and stroking it up and down. I imagined these were her hands, holding my little brother...
Gradually, I fell into fantasies... My whole being was immersed in a sea of lust!

This continued until one day, while I was watching her undress in the bathroom, she glanced back and I caught
a glimpse of an eye reflected in her small glasses. I assumed she couldn't see it, so I boldly continued peeking. However, throughout the shower, she kept looking out the window.
Afraid of being discovered, I went back to my room early. After she finished showering, she wrapped herself in a large towel and glanced at me a few times, seemingly casually. I felt her gaze was strange!
I wondered if I'd been discovered!

But I was so emboldened at the time that I stole her underwear that night to masturbate. She usually washed her underwear the following evening, but when I got
home at noon, I couldn't find the two pieces of underwear I kept in my room. I thought something was wrong and rushed to the balcony. Sure enough, the underwear was washed and hanging there
! I was terrified all afternoon, afraid of being scolded by my sister! To my surprise, nothing happened that night! I thought my sister was giving me a way out, so
I behaved myself a lot!

But my sister seems to be getting more and more affectionate towards me! She often comes into my room asking all sorts of questions! She doesn't even close the door when she changes clothes, just leaves it half-open,
which naturally makes me, the peeping tom, very aroused, so I started to go too far! Strangely enough, sometimes her underwear stays untouched in the bathroom for days! My mom...

Even her mother sometimes complains that she doesn't wash her clothes, but she never says anything!

So I boldly took it back to my room for my own use, and put it back the next day, deliberately not neatly, so she would wash it! I guessed she did it on purpose, so
one time I boldly ejaculated inside her bra, and she only washed her panties, the bra was nowhere to be found! Only her panties were hanging on the balcony! I became more and more brazen
, and I felt she was giving me more and more opportunities. When we were alone at home, she would never close the window when she showered, and when it was just the two of us at home, she
would walk around the living room in only a thin nightgown. Sometimes she would ask me if I had a girlfriend, and how far we had progressed! Sometimes she would talk about her and her boyfriend's lewd things, and
I would push my luck, sometimes openly taking her underwear, often leaving semen on it. I even openly flirted with her!

This continued for a while until my 21st birthday! My parents went back to their hometown! They called to tell my sister that they wouldn't be coming back to celebrate my birthday with me
! That evening, some classmates came over to celebrate my birthday, and we all
went out to eat. My sister accompanied us, and I asked her if she should call him "brother-in-law." She said no. So, we all went out for dinner, and everyone drank quite a bit! After the meal, my sister and I took a taxi home!

As soon as we entered, she said she couldn't go on and asked me to help her back to her room! I was happy to do so, of course, so I helped her back
. She then asked me to take off her shoes, which I did. She said, "Today is your birthday, let me give you a birthday present!" I said, "Okay." She got up and took off her top, revealing her fair
breasts. It was the first time I had ever seen a woman's breasts so close, and it was something I had long dreamed of seeing!

My little brother started to get erect, and I couldn't control myself! She stood up again, on the bed, unbuttoned her jeans, and slowly, slowly began to pull them down... I
saw her flat stomach, the edge of her white panties, her high pubic bone, her deep pubic fold, and her fair thighs. I can't remember how fast my heart was beating at that moment.
I was stunned, completely mesmerized. Then she hooked her arms around my neck and said, "Hug me." How many times had I dreamed of being able to touch this body with my own hands? Now that I could actually
touch it, I was too afraid.

She pulled me onto the bed, and I involuntarily pinned her down. She whispered in my ear, "I told you how to undress a girl the last
bit." Fueled by the alcohol, my lust grew stronger, and I hurriedly pulled off her panties, but I couldn't get her bra off. Seeing my frantic efforts, she
unhooked it herself. As she did so, she said, "Want me as your birthday present?"

I was speechless. I pressed her down and kissed her frantically. She kissed me as she undressed me. When we were
both completely naked, I couldn't penetrate her. No matter how I tried, I couldn't get in. She rolled me over, made me lie down,
sat up, and held my penis with one hand. She rubbed it against her vulva a few times, wetting it with her juices. Then she
sat down on me. I felt a slight pain in my glans, followed by a warm sensation. My sister couldn't help but cry out. She didn't
rush to do anything else but said, "Finally, my brother's penis is inside me!" Then she started slowly rocking her hips. After a
few thrusts, I ejaculated!

This was my first time having sex! In my memory, besides the headache, all I remember is my sister's pair of white breasts swaying in front of my eyes… The first
time, it didn't last more than five minutes. Watching the white semen flow out of my sister's vagina with my withdrawn penis, I was terrified. "Sis, will you get pregnant?" she asked. She
smiled, "No, these are my safe period, it'll be fine!"

I let out a long sigh of relief! Exhausted from the alcohol, I fell asleep! Naturally, I was late for class the next day! All day, I couldn't do anything
but think about what happened last night! Every time I thought about my sister forcefully sitting down on my penis, her white breasts swaying with her body,
I couldn't help but get an erection!

I thought this matter would just be over and done with! I wouldn't bring it up again, and neither would my sister! Let's just treat it as a misunderstanding! But last night,
was my sister drunk, or did she really want to have sex with me?

With all this messy stuff going on, I got home that evening! My parents were back from the factory back home and were starting to cook dinner; my sister was busy in the kitchen.

I went to my room, refusing to face my sister! Dinner was served, and my sister acted as usual, chatting and laughing, as if nothing had happened! I gradually felt
relieved! I thought, as long as she doesn't pursue the matter, that's fine!

It was night, time for bed. Suddenly, my sister walked past my door and whispered, "Don't close your bedroom door tonight!" Was she going to bring up what happened yesterday? I
was a little scared! But I didn't dare disobey her! So I left the door ajar and lay on the bed waiting… Time ticked by, and it was already midnight with no sound
. Was she just trying to scare me?…?

I fell asleep without realizing it! In my drowsy state, someone nudged me. I looked up in the dim light of the wall lamp and saw it was my sister! Seeing I was awake, she put her finger to
her lips, gesturing for me to whisper, and then softly said, "Come with me!" I didn't understand what she wanted, and followed her cautiously. She left my
room and walked straight to the bathroom. When she reached the door, she beckoned me in. As soon as I stepped into the bathroom, my sister quickly closed the door and locked it shut
!

She turned back and gave me a sly smile. She asked, "Do you remember what happened last night?" I thought, "Oh no. She's really going to settle scores with me!" I whispered, "
I remember." "Then do you want to do it again?" — "What?" I was startled! "Keep your voice down, Mom and Dad will hear!" My sister quickly covered
my mouth! "As long as you agree to one condition, I'll do whatever you want with you!" I was overjoyed and immediately asked, "What condition?" "If you promise
to cut ties after I get married, I can stay with you until I get married!" "Okay!" I agreed to her condition without even thinking! "Do you want
to do it again like last night?" she asked with a smile. "I…" "Do you want to or not?" "I…I…of course I want to!"

I was a little embarrassed! After hearing this, my sister came over and hugged me. "As long as you're good, I'll do whatever you want..." Before she could finish speaking, she started kissing me. Instantly,
my desire was aroused, and I hugged her tightly and started kissing her too. Her hands reached down to my crotch and easily pulled off the only thing I was wearing
, my underwear. My erect penis was already pressing against her lower abdomen. I took off the robe I was wearing on her—there was nothing underneath!

The bathroom lighting was dim, and I couldn't see her lower body clearly, but her high, firm breasts and flat stomach were enough to ignite my desire! I
hugged her, but didn't know what to do next. "There's nowhere to lie down here!" I whispered in her ear. She laughed. "Who said we had to lie down? Come on...
" She pulled me to the toilet, lowered the toilet seat, and made me sit down. I did as she said, and she knelt in front of me, grasped my penis with both hands, and
began to stroke it. I thought my penis had reached its limit, but it still swelled up. I couldn't hold back any longer: "Sis, it's so uncomfortable!"

She looked at my penis and said, "Okay. Now hold on with your hands, don't move!" I quickly held on, and she stood up, facing me, straddling me
, placing her legs behind and to the outside of my thighs, her lower abdomen pressed against my face. I could smell her fragrance. She asked me, "Are you holding on?" I nodded
, and then she slowly sat down, her buttocks touching my penis before sliding down her vulva to the entrance. I thought she was about to enter, but suddenly she stood up again. "
No, it's too dry. Use your hands to touch me here," she said, pulling my hand to her genitals. I clumsily began to caress her. "Yes, like that,
slowly, don't rush, start from the inside of your thighs, slowly move towards your vulva," she instructed me while simultaneously stroking her own breasts.

"Suck my sister's breasts," she said. I opened my mouth and took a third of her breast into my mouth at once. She chuckled, "A little less, don't worry about
choking!" Gradually, I relaxed, and started using the techniques I had learned from books. I suckled her right breast, gently biting her nipple and
licking her areola back and forth. My left arm was around her waist, and my right hand was stroking her genitals. Although I was still a bit clumsy, I was getting the hang of it. My sister was also
aroused and started to get wet. Her breasts became harder and harder, and her genitals were soaking wet. She was also stroking her left breast, her right arm around my neck, and began...

She let out a soft moan.

Seeing that it was very wet down there, I anxiously asked, "Is it okay, sis?" She touched her genitals with her hand, then smeared the vaginal fluid on her hand onto my penis. "
Hold on tight," she said, and then began to guide my glans down her vaginal opening. She spread her legs and helped my penis into her vagina. I was worried it
would hurt like last time, so I was quite nervous. But this time it slid in very smoothly. As soon as my penis entered her vagina, she immediately put the handkerchief she had prepared beforehand into
her mouth! I only heard her let out a muffled groan!

She looked very comfortable! My penis also felt a warm squeeze, and the glans felt a little hot! I didn't know what to do. My sister started shaking her
hips, making my penis move in circles inside her vagina. After a few strokes, I felt her vaginal fluid flow down my penis into her vaginal canal, and then onto
the toilet seat. The whole area where we were joined was wet, and her pubic hair was all matted together!

After a while, she started twitching her hips. The movements weren't very large, but they stimulated my glans. Her vagina was still very tight,
and my emotions, which had just calmed down, were reignited. I started breathing heavily. She wasn't in much better shape; she had a handkerchief in her mouth, but I could still hear her moans.
In the end, I was too inexperienced. I was about to ejaculate in less than 10 minutes. I quickly hugged her tightly and said, "I can't take it anymore!"

Upon hearing this, she immediately stood up from me, and my penis slipped out of her vagina. She took the handkerchief out of her mouth, panting, and whispered, "Don't
ejaculate so soon, take it slow!" After saying that, she walked to the tap, wet a towel, and wiped her genitals, removing the vaginal fluid.

Then she walked back to my side. "Do you know what oral sex is?" I nodded. "You don't mind that your sister is dirty, do you?" "Of course," I answered her. "Then lick your sister!"
I squatted down under her and started licking her. Although I had seen pictures of women's genitals in books before, this was the first time I had seen a real one, and it was my own sister's!

I could finally distinguish the labia majora from the labia minora, and I found the vaginal opening and urethral opening. I knew which one to insert my tongue into. I ran my tongue over her entire
vulva, parted her labia with the side of my tongue, and teased her clitoris with the tip. After a few moments, her vaginal fluid flowed out again. Before I knew it, my mouth was full of it. It was
the first time I tasted vaginal fluid; it was a little fishy and a little disgusting. I wanted to stop, but when I looked up and saw my sister's entranced expression, I couldn't resist. So, enduring
the fishy smell, I continued licking my sister's vulva. She was so wet, the fluid flowing down her thighs. Because my face was buried between her legs, my
face was also covered in her vaginal fluid, and the whole room was filled with a strange smell!

She suddenly took out a handkerchief and asked, "Still want to ejaculate?" After she licked me, my urge to ejaculate began to weaken. "Much better!" "Then let's continue
! This time I'll rest for a bit, you move!" After saying that, she bent down, held onto the water pipe against the wall with both hands, and faced me with her buttocks. "Put it in from behind!"
she said, turning her head to me. I held her waist with my hands, and placed my penis against her vulva, slowly searching for the vaginal opening. My sister turned her head and said, "Wait until I put the handkerchief in my mouth before you
insert it!"

I saw her put the handkerchief in her mouth, so I guided my penis in and thrust it in. My sister's body trembled for a moment, she turned to look at me, and then
pushed her hips back. I knew she was signaling me to start thrusting, so I held her waist with both hands, pulled my penis out a little, and then thrust it back in. At first, it wasn't
very fast, but as her vaginal fluid increased, I thrust faster and faster. My hips thrust forward and backward, my penis going in and out of her vagina. Her vaginal
fluid splashed all over her buttocks and my lower abdomen as I pulled my penis out. My sister trembled, her legs unsteady, and she made muffled sounds with the handkerchief in her mouth.
I became more and more excited, and the force of my thrusts increased. I accidentally pulled my entire penis out. When I reinserted it, I didn't put it in the right place, and it hurt my glans.
I couldn't help but cry out in pain. My sister also felt her buttocks being poked by me!

Turning around, she saw me wincing in pain as I gripped my penis. She quickly pulled out a handkerchief and asked, "What's wrong?" "I accidentally inserted it in the wrong place!" I said. She burst out
laughing, grabbed my penis, examined it, and said, "Can't you slow down? You can't run before you walk! Fine, I'll do it! Go sit down
!" I sat back down on the toilet seat.

She gripped her vulva and inserted herself, then began to rotate and thrust. I instinctively held her, one hand caressing her breasts, watching her ecstatically
tilt her head back in enjoyment, which fueled my lust. I stopped caressing her breasts and instead pressed her buttocks against me, helping her thrust. Her moans grew
louder, my lust intensified, and I felt myself about to ejaculate. I stood up, holding her against the wall, and thrust into her relentlessly. She trembled, clinging tightly to
me, her breasts rubbing against my chest. Each thrust brought forth her juices, making a sizzling sound, and
the sounds she made only amplified my arousal. I felt as if my penis was about to burst, and I thrust forcefully into her vagina!

Finally, I couldn't hold back any longer. I pressed down hard on her buttocks, penetrating her deeply, and ejaculated all at once! My sister shuddered,
hugging me tightly, her vagina gripping my penis tightly. She shivered, and I felt a surge of heat on my glans—she had orgasmed too! My sister climbed onto my
shoulder, panting heavily. I was exhausted too, so I gently put her down. My penis slid out of her vagina, bringing with it a lot of vaginal fluid and semen, which
flowed down her thighs. She sat weakly on the toilet seat, looked up at me, smiled, and softly asked, "Was that good?" I smiled back and nodded. "Get ready
, hurry back to your room, it's almost 4 o'clock! Mom and Dad will be up soon!"

We quickly wiped the semen and vaginal fluid off our bodies, cleaned the toilet seat as well, and after making sure everything was clean, we kissed each other and went back to our room
!

From then on, we began our incestuous life! The toilet became our first secret place for making love! When our parents were home, whenever my sister
gave me a wink before going to bed, we would tacitly agree to go to the toilet around 3 a.m. to make love! Because it was too dangerous to do it in the toilet, fearing our parents might suddenly wake up,
we didn't do it often! However, our parents would go back to their hometown, to the bottle cap factory, once a month for about five days, which became the best time for us to meet
! And she, under the guise of taking care of me, could cancel her dates with her boyfriend and come home to be with me during those days!

What a depraved life it was! After work, she and I would entwine in every corner of the house after school. At night,
after drawing all the curtains, we would begin our nightlife naked. Except for my parents' bedroom, every place held memories of us making love or caressing each other! We would
watch TV together, naked and embracing, my erect penis nestled between her legs, occasionally being rubbed! In the kitchen, while she prepared
dinner or a late-night snack, she would receive my caresses of her breasts and genitals from behind! Often, before the food was even ready, she would already be unable to stand!
We wouldn't even leave the bathroom or shower untouched—the dining table, everything became our lovemaking place!

During sex with her, I transformed from a clumsy kid into a man who knew how to flirt! Gradually, we developed our own preferences! I
liked penetration from behind, watching her white buttocks, my penis going in and out of her vagina, her juices flowing down her fair thighs. She always
was incredibly wet; when we changed positions, my penis would pull out, the glans bringing out a lot of fluid—you could actually see real vaginal discharge!
Sometimes I asked her if every woman was this wet, and she said no, and that she didn't get this much when she had sex with her boyfriend!

"I guess the more stimulation, the more she flows," she told me! She likes me lying on top while she does it! That way she can be more proactive! She once
said, "With him, I passively enjoy pleasure; with you, I actively seek pleasure!" She always likes to smear her fluids all over my penis, then
have me hold it steady while she slowly pulls it down from above, parting her labia! As my penis fully enters her vagina, she moans with pleasure! A very satisfied sound!
I love hearing her moans! They give me passion! Just hearing her moans is a huge stimulation! With each thrust, she
responds with moans! It makes me want to do it more and more!

We're getting more and more familiar with each other's bodies! We know each other's sensitive spots, our special preferences! She knows I won't last long the first time I penetrate,
so she always tries other methods to make me ejaculate first. And I know she likes continuous stimulation followed by a final, exhilarating release, so I slow down during caresses.

I stimulate her slowly, in waves, without being overly intense, until her tolerance reaches its peak, then I release her pent-up emotions in the most stimulating way! We
've developed a tacit understanding during sex; we know when to change positions without saying a word, and we even think alike about every position!

She could be quite mischievous sometimes. Once, while we were making love, she suddenly stood up from me. I was wondering why she stopped, when I saw her
bring a ruler from my room, grab my penis, and say, "Come on, let's measure how long it is!" I was both amused and exasperated. She, however, enthusiastically pressed down on my
penis and seriously measured it, asking as she did so, "Will it grow a little longer if we stimulate it a bit more?" She licked and sucked it until she was sure it couldn't grow any longer, then she
stopped! That was the only time I measured it—17.5cm! This was the measurement she took while pressing down hard; if she let go, it would be even shorter!

Happy days are fleeting! From the time I leave my parents until I return, we only get to spend three or four nights together! So most of the time, we can't make
love!

One day at noon, I went home for lunch. It was still early before class, and Dad was watching TV. My older sister came home, busied herself for a while, grabbed a bag, and then
asked me, "Xiaoning, what time is class?" "2:30," I said. "Then come with me to the storage room to find something!" "Oh, okay!" I
replied absentmindedly. Then I followed her downstairs to the basement storage room. Inside, it felt stuffy; I just wanted to find what I needed and leave quickly. So I asked her, "Sis,
what are you looking for?" She didn't answer, and casually locked the door from the inside.

I was wondering what was going on when she took a package out of her bag—an old towel blanket! "Now you know what you're looking for, right?" she winked and
smiled. I still didn't quite understand. She spread the blanket on the floor, looked up at me, and said, "Hurry up and take your clothes off! You don't have much time; you have class at 2:30
!" Then it dawned on me—my sister wanted to have sex! "How could you think of doing this here!" I laughed. "Nobody usually comes here, and
this big security door is pretty soundproof! We'll be fine if we keep our voices down!" she said as she took off her clothes.

I quickly stripped off my clothes and lay down on the towel. Before she'd even finished taking off her panties, she rushed to suck my penis, sticking her butt out
in front of my face and caressing me in a 69 position. I looked at her, puzzled, and asked, "Sis, why are your panties wet?" She spat out my penis, straightened up, and turned around, saying,
"I watched some movies on the computer in the office after work, and that's how it got like this. Your brother-in-law is away on a business trip, so I had to find you, my little guy!"
"Little guy? Let's see how big or small my thing is!" I teased her, exaggeratedly thrusting my buttocks forward! "Okay, okay, good little brother, it's your big one, alright?
Hurry up and do it!"

She spoke in a coquettish tone, bending down to lick my glans. I pulled her panties down to her thighs, exposing her vulva, and smoothed her pubic hair with my hand before starting
to lick her. Her panties were almost completely wet, her entire vulva dripping with moisture. Wherever my tongue touched, there was a fishy, sticky fluid. I was used to
this smell; I even kind of liked it! I felt it was a kind of sexual stimulation! Because I was under her buttocks, it was easy to slip my tongue into
her vagina. I used my fingers to part her two white buttocks, and my tongue swirled around her labia minora, occasionally penetrating slightly to stimulate her
vaginal opening and glide over her clitoris. I saw her vaginal fluid increasing, and I began to stimulate her clitoris. She was also diligently caressing my penis. Although I couldn't see it
, I could imagine my not-so-small glans going in and out of her little mouth. She was also using one hand to manipulate my foreskin and the other
to play with my testicles, while her tongue constantly swept across my urethral opening, bringing me waves of tingling sensations that coursed through my entire body!

She paid special attention to stimulating my glans, her tongue moving back and forth, licking every inch! Increasingly excited, I began to repeatedly
touch her clitoris with the tip of my tongue, then immediately pull away, and then increased the intensity and speed. I knew I didn't have much time at noon, so I didn't hold back. In less than 10 minutes, the urge to ejaculate
came, and I ejaculated into her mouth without hesitation! She took out some toilet paper from a nearby bag, spat it into her mouth, then licked my glans clean with her mouth
before spitting it into the toilet paper!

By this time, her lower body was also a mess, soaked everywhere! She stood up, turned around, and sat on my stomach, saying, "Help me rub the water on my breasts!"

She said I touched her genitals with my hand, and soon my hand was covered in fluid. Then I smeared the fluid on her breasts, and soon her pair of white breasts were shiny and
glossy. She also wiped herself down there and smeared the fluid from her hands on my semi-erect penis! Then she told me to get up, and she lay down, saying, "Sit
on my chest and put your penis between my breasts!" I sat down as she said, and she squeezed her breasts with both hands to rub my penis. Because of the fluid,
it was slippery when she rubbed it, and soon my limp penis slowly became erect again! I thought it was about time, so I stood up!

We switched positions. I lay on the ground, and she did it her way. I helped her hold my penis, and she eagerly inserted it. Because she had been waiting for so long,
the entry was a little too fast, and she couldn't help but let out a cry. I quickly grabbed a piece of clothing next to me and stuffed it into her mouth. She smiled seductively
! I looked down and realized I had stuffed my underwear into her mouth! She hadn't even noticed! I secretly smiled too! She didn't seem to notice at all! She was only concerned about her vagina
, her buttocks swaying in the air! Her breasts were swaying in front of me again, so I started to play with them. My sister's breasts weren't very big, but they
were very firm and perky, the petite and delicate type I liked! The nipples were still red, no longer pink; the engorged nipples had darkened a bit, probably
from playing with them too much!

Even so, I still liked to lick and bite them. Now they were playfully swaying back and forth. I held them in my hands, gently playing with them. My sister was already excited;
her breasts were hard and felt wonderful to the touch. Her skin was fair and tender; normally, her breasts looked like marble, but now, smeared with her vaginal fluid, they appeared
very shiny and even smoother. Several times, my sister, shaking her body wildly, flung them out of my hand! My sister's movements slowed down; I knew she was tired, so
I abandoned her breasts and put my hands on her buttocks, helping her with thrusting movements!

She resumed her previous pace, and my pleasure continued to rise. We both knew we couldn't take it slow at noon, so we didn't use any
techniques, just pure intercourse, the goal being to ejaculate! Therefore, each thrust was direct and direct! This also consumed a lot of energy! Soon, my sister
was covered in sweat and couldn't take it anymore! I hugged her, rolled her over, and put her on the bottom, starting in our usual position! My sister passively received
me while actively touching our genitals, constantly stimulating herself. Neither of us was particularly interested in this position, so
once my sister regained some strength, we immediately stood up, and my penis withdrew from her vagina, bringing out a lot of fluid! The old towel was already
quite wet!

She instinctively grabbed the support next to her, sticking her buttocks out and waiting for me. I adjusted the height, rubbed the head of my penis against her vaginal opening a few times, stimulating
her clitoris, and without using my hands, I thrust my hips forward... and entered her effortlessly! My hands rested on her waist to facilitate my entry and exit; each withdrawal made a "whoosh"
sound as I quickly thrust in, my stomach slapping against her buttocks with a "slap" sound. My sister had my underwear in her mouth, so all I could hear were moaning sounds! I
knew she was moaning; every time I thrust in forcefully, she let out a moan, and the harder I thrust, the louder her moans became—it was a form of release and encouragement! I looked down,
watching my penis slide in and out of my sister's vagina, drawing out drops of her vaginal fluid. Her legs began to sway, and I knew she was close. She started to squat down, and
I wrapped my arms around her waist, pressing myself against her back, thrusting upwards forcefully. Her body bounced with each thrust. Suddenly, she pressed down hard, "
The climax is coming!" I thought, increasing my speed, thrusting forcefully dozens of times. Suddenly, my sister straightened her upper body, her panties falling from her mouth, letting out a long
cry—the climax had come! I held her body, continuing to thrust. She turned her head, grabbing my arm with one hand, looking at me with a dazed expression,
her hair swaying with each thrust. I loved seeing her like this!

I felt myself coming close, so I thrust hard into her vagina, going all the way in with each stroke. Her body went limp, and as she received my penetration,
she pleaded in a voice, "Faster, faster, I can't take it anymore! Thrust, thrust harder into me!" I couldn't take her stimulation, and after a few more thrusts,
I ejaculated.

I've been pondering the reasons behind incest for a long time. I've discussed this topic with several netizens who have had similar experiences. The general consensus is as follows:

There are several categories: The first category is thrill-seeking. Like something my sister said a few years ago, which I still remember vividly: "It's not that your brother-in-law can't satisfy me; my
relationship with you wasn't accidental! The thrill of incest led to our beginning! Can you deny it?" I really can't deny it!

The second category is the "helpless" category! A female netizen from Shanxi was sexually assaulted by her father when she was very young. Even after she grew up, understood the situation, and became independent, she
still couldn't escape the incestuous relationship! In her own words, "This beginning was not my will, I had no choice, but once I had a choice, I
couldn't stop!"

The third type is the "keeping the good stuff in the family" type! This is another story from an online friend! He's from Fujian, and according to his thinking, his sister will eventually get married, so
rather than letting someone else have her, he'd rather keep her for himself!

The fourth category, "Loneliness Makes You So Beautiful," tells the story of a mother and her son. A young, divorced mother lives with her son. As the son
grows up and enters puberty, sex education becomes a sensitive topic. The mother, being human, also has emotions and desires. Under these circumstances, coupled with a series of coincidences,
something that shouldn't have happened occurred. When I talked with this mother and son, I could feel the son's attachment to his mother and the mother's reliance on her son. This made me
think of another question: Is incest based on affection or lust?

In 1997, the day my sister and I had agreed upon arrived! At the end of August, my sister got married! According to our prior agreement, once she was married, we would end our
incestuous relationship! My brother-in-law was a technician at a company! Although he worked in technology, he wasn't rigid at all; on the contrary, he was particularly cheerful and outgoing,
always bringing joy to our family whenever he visited! My parents also liked him very much! On her wedding day, my sister wore a white wedding dress, her light makeup
making her look incredibly alluring. The low-cut dress subtly revealed a glimpse of her cleavage, making her look very sexy and attracting the attention of most of the male guests! I intentionally avoided close contact with her,
watching her dignified and happy smile from where she couldn't see me! She gracefully linked arms with my brother-in-law, swaying her round hips as she chatted with the guests.
I knew that beneath her pure white wedding dress, in those small panties, lay the genitals I had once been able to play with at will, and deep inside her vagina
lay the semen left behind from the lovemaking we had done in my room that morning, before she put on her wedding dress!

According to our local custom, the bride spends the day before the wedding at her parents' home. The groom's family sends a car to pick her up around 6 AM, and the wedding banquet is held
at the groom's house. My sister's last night at her parents' home was naturally very busy, preparing for the next day. My parents were also busy running around
. I was relatively free, and besides, I was already reluctant to participate in my sister's wedding, so I didn't want to get involved. I went to bed early,
but couldn't fall asleep. Listening to my parents and sister happily discussing the next day outside, I couldn't help but sigh. Even after
they all went to bed, I still couldn't sleep, so I got up, took a cigarette from the living room, and secretly smoked it in the bathroom. As the bathroom filled with smoke,
my thoughts drifted to this place where my sister and I used to secretly make love. Over the past year, how much semen and vaginal fluid had we left here...? Thinking about
it, I got an erection! He reached into his pants and patted himself a couple of times, then lost interest and stopped. He threw the cigarette butt down the toilet and flushed it away, then groped his way
back to his room in the dark.

I opened the door, and there was a familiar figure lying on my bed!

"Did you smoke?" the older sister asked softly. "Don't you not smoke?"

"I was in a bad mood, so I smoked one!" I casually locked the door.

My sister patted the pillow: "Come lie down."

I lay down beside my sister as instructed. She lay on her side, propping her head up with her hand and looking at me. "I haven't seen you smile for days," she
said softly after a moment of silence. "I know you're unhappy, but didn't we have an agreement? You can't expect your sister to stay home and stay with you forever, can you?"

Seeing that I didn't say anything, my sister playfully pinched my nose: "Stop arguing! You're 22 already, it's time to find a girlfriend! I can't be with you forever, that's
not fair to your future husband!"

"It's already unfair!" I said quietly.

"You're my brother, so this isn't a complete betrayal of him, right? Because you're the least likely person I could fall in love with. My heart hasn't betrayed him; I just
want to experience some excitement while I'm young! And when I found out you were spying on me, I knew I needed that feeling!"

"Are you just looking for excitement with me?" I asked seriously.

"Silly girl, it's not just about excitement, we're siblings, of course we have feelings for each other, it's just family love! Right?"

"I think... I love you!" I mustered my courage and said.

My sister didn't seem surprised, but she didn't speak for a long time!

"And you?" I pressed, "Are you just my younger brother to me?"

"Wait until you find a woman with whom you can share a future before talking about love!" the older sister said earnestly. "I don't think what happened between us was a mistake, but I
think it was a process, not a result! It was a process of seeking excitement!"

I didn't speak. After a long silence, I asked, "Can we still be together in the future?"

"I don't know," my sister said, putting her arm around my shoulder, "but I've always been your sister, haven't I?"

"Yes," I nodded. "Sister..."

"It's not that your brother-in-law can't satisfy me, my relationship with you wasn't accidental! The thrill of incest led us to start! Can you deny it?" My sister suddenly
asked me seriously. "I...I don't know!" I replied. "Don't know?" My sister grinned mischievously. "Then...what's going on here?" Her small hand slipped
down my lower abdomen and into my underwear, touching my hard penis. I turned to face her, lifted her nightgown with my left hand, and ran my hand up her thigh.
My sister obediently spread her legs, allowing me to easily touch her genitals, which were already somewhat wet! I kissed her lips, and she responded passionately
, her tongue plunging deep into my mouth. My fingers circled her vulva, wetting them, and as I sucked on her tongue, my fingers suddenly
plunged into her vagina, immediately eliciting moans of "woo...woo..." "Fuck me, little brother," my sister whispered in my ear, pulling away from my lips.
I lifted her nightgown, pushing it up to her lower abdomen, then pulled off my underwear, and thrust my penis into her vagina! My sister
immediately covered her mouth to prevent herself from crying out! Her vagina was slippery, wet, and warm, which felt wonderful. After a few hard thrusts,
she couldn't take it anymore, wrapping her arms around my neck and urgently saying, "Fuck me, fuck me...don't worry about me!" I held her waist and thrust rapidly.

My sister wrapped her arms around my neck, tilted her head back, and gritted her teeth to keep from making a sound. I knew we couldn't go on for long tonight; I had to
get up early tomorrow. So I didn't change positions or play with her; I just kept thrusting. My sister couldn't take it anymore. As I thrust into her, she cried out in a low voice, "Fuck
me to death, little brother... Xiao Ning, my little brother, fuck your sister! Good little brother, I want you to fuck me for the rest of my life. I can't take it anymore, hurry..."

I thrust into her twice forcefully and asked, "Do you want me to fuck you for the rest of your life?" My sister didn't answer, only saying, "Faster, faster, harder!" I thrust
a few more times, then suddenly stopped. "Do you want me to fuck you for the rest of your life? I won't move unless
you tell me!" My sister couldn't take it anymore, thrusting her lower body repeatedly: "Don't stop, Xiao Ning, thrust faster..." "Then tell me, do you want me to fuck you for the rest of your life?" I pressed my hand against my sister's clitoris. "Yes, yes, I want it..."
my sister cried out urgently in a low voice. I immediately wrapped my arms around her waist and thrust in all the way: "Fuck you, I want to fuck you for the rest of my life, sister!"

"Fuck me, fuck me to death, little brother! I'm coming, hurry!" I couldn't hold back any longer either, so I straddled my sister and thrust rapidly. Our love juices flowed down our
genitals onto the sheets, soaking them completely. In the un-air-conditioned room, the two of us were almost naked on the bed making love. Sweat made our bodies
sticky, and every time I thrust into my sister's vagina, there were slapping sounds and wet sounds!

"Sister... I love you, sister, I want to fuck you!" I whispered in my sister's ear, my penis thrusting relentlessly into her vagina. "Fuck me to death, Xiao Ning,
I'm going to die, it's coming, it's coming..." My sister's voice grew louder with the approach of her orgasm. The stimulation of incest almost made us forget
our parents sleeping in the other room! "Sister... Jiang Xiaoran, my Xiaoran!" I called out my sister's name, and my semen sprayed into her vagina!

After a long while, my sister hugged me wearily and kissed me: "I have to go back to my room, you naughty boy!"

"Don't go back on what you just said!" I said hurriedly!

"What did I say? I forgot..." My sister gave a sly smile and crawled off the bed from under me!

"Oh, you broke your promise!" I said angrily. "Alright, sweet little brother, go to sleep!" My sister put down her nightgown and opened the door.

Goodnight, sweetie!

Watching her slowly close the door, my earlier excitement instantly turned into exhaustion! I drifted off to sleep in a daze!

My sister's sex and love made me incredibly attached to her! Even after we got married, for a long time, I called my wife "sister." She is indeed
older than me, but every time I called her "sister," especially during sex, it wasn't just "sister" anymore!

Since it happened so long ago, it's hard to remember the specific details. Sexual encounters are usually remembered, but often reprocessed! After all, you
're not here to read a narrative essay, right?

There are many things in this world that are hard to believe! Take "incest," for example. It subverts moral values and ethics, so it's unbelievable and
highly repulsive! Then there's "cuckoldry" and "wife swapping," which also subvert moral values and the concept of chastity, yet how many people are addicted to them?

Two or three years ago, articles on the topic of "wife swapping" were extremely rare, but now they are appearing everywhere! This shows that people's thinking is changing, and the challenge to moral bottom lines is becoming
increasingly blatant. These two immoral and unethical things are compared together because they are the most unacceptable. Rape is a crime, but
this kind of fetish has been almost accepted by most men!

If given the chance, I think 99% of people would try it, but would you dare to try incest or wife-swapping? Probably 99% of people wouldn't and wouldn't dare to try! Only
those who have done it, who have actually experienced it, can truly understand the pleasure—the pleasure of depravity! Friends who have engaged in wife-swapping and incest will definitely understand!

Of course, most people, and most people who enjoy this kind of thing, haven't experienced it firsthand. Many only imagine it. Those who like wife-swapping can
imagine their own wives, but some people who like incest wouldn't even think about doing it with their own family members! —Of course, it's best not to think about it. If you really think about
doing it with your family members, then you're probably not far from doing it! —Most incestuous relationships end in tragedy! Of course, there are occasional exceptions!

A year after my sister got married, I graduated. Since my family was relatively well-off, I wasn't in a rush to find a job. Back in the 90s, everyone was vying for positions in government agencies
; someone like me, who studied art, had no chance! My parents wanted me to take over one of their factories, but I had no interest in business, so I just went along
to observe. That's where I met my girlfriend, and she was the only one I dated. Surprisingly, it worked out, and we eventually married—she's now my wife! But
that's a story for another time!

My brother-in-law works for a good company, and as a technician in after-sales service, he travels frequently for work. It's not safe for my sister to be home alone, so
she always asks my mom to go with her when he goes. The first time, my mom asked me to go, and I really wanted to go, since I wanted to have a chance to be closer to my sister. But
my sister said, "Don't let Xiaoning go, you go, Mom..."

"Wouldn't it be better to let Xiaoning go? It would save him from staying at home all the time with nothing to do, and he could keep you company," Mom said.

"Xiao Ning is so grown up now, she must have her own things to do. You should keep me company!" My sister politely declined the suggestion. Sitting beside her, I felt
incredibly uncomfortable! I knew my sister was intentionally avoiding me to avoid awkwardness. At that moment, I even regretted having a relationship with her; now we
weren't really siblings anymore!

Since my sister got married, I've moved to live at the school. Firstly,
to avoid being reminded of her by familiar things, which would inevitably make me sad. Secondly, the school dormitory is crowded and lively, so I don't think about my sister as much. Of course, it's also to avoid constantly thinking about sex! But sometimes I can't help it. After all my classmates are asleep, I hide under the covers,
thinking about my sister's body, and secretly masturbate!

Back then, I was too young and stubbornly believed my feelings for my sister were love, so I didn't look for a girlfriend. Well, not having a girlfriend meant more freedom, and also
less chance of making mistakes! One of my best buddies in the dorm got carried away with his girlfriend's kissing and touching, so
he went back to the dorm and gave everyone a pack of cigarettes, telling us to sleep in other dorms. The two of them hid in the dorm, stripped naked, and started having sex. This guy was too arrogant; they were doing it standing up, and he pinned his girlfriend against the door and
thrust into her relentlessly. The woman couldn't take it, and she screamed a bit too loudly. Just then, the department head, "observing the situation," heard the noise and caught them red-handed! We still laugh about it to this day.
Now he's made a name for himself; he had a solo art exhibition last year! He even appeared on TV, but I can't mention his name!

I thought my relationship with my sister was over; after all, she loved her husband, not me! I would always be her brother. But as time went on...

I gradually began to accept this reality! I was also able to face my sister more calmly. Strangely enough, I've always been very calm towards my brother-in-law! I've never
felt guilty towards him! Not even today! Things were slowly coming to an end in my world, and I thought this kind of abnormal thing would never happen again
! The turning point came a year and a half after my sister got married!

It was springtime in 1997, a time of fluctuating temperatures. My brother-in-law was away on a business trip to a city in the south. As usual
, my sister called to ask my mother to come and keep her company. Unfortunately, my mother's factory had experienced a major accident and was ordered to undergo rectification! My mother couldn't come, so naturally, I went instead!

Standing outside my sister's door, I felt inexplicably nervous. Although I'd come over occasionally before, my brother-in-law was always there. I'd only exchange a few pleasantries before leaving. This
time, he wasn't there; it was just my sister and me… My heart was pounding. "What if something happens?" I wondered, my mind racing. "No, I can't have these thoughts!
It's all in the past!" I suppressed my rising desires. Composing myself, I pressed the doorbell.

"Coming..." came my sister's voice from inside the house! After the footsteps, the door opened.

"You?" My sister looked surprised. "Aren't you welcome, sis?" I said, trying to sound casual.

"No, no, come in quickly." My sister reached out to take my bag, but I said, "I can do it myself." I avoided her hand and went into the living room.

The older sister was clearly taken aback, and it took her a moment to come to her senses before she closed the door.

"Something came up at the factory, and Mom couldn't get away, so she sent me," I explained.

"Have you eaten?" the older sister asked somewhat awkwardly. "I'll go heat up your food!"

"I've already eaten," I replied.

And so, in a strange and inexplicable atmosphere, I settled into my sister's house! For the first two days, we spoke very little, as if we were both carefully
protecting something!

On the first night, I barely slept. Lying by the window, my mind was filled with images of my sister's body contorted beneath me, and then with her
avoiding me all year! The lingering memories tormented my mind and my erect penis throughout the night!

The next night, I went to bed early, but couldn't fall asleep, tossing and turning. I felt a slight urge to urinate, so I
got up and went to the bathroom. As I reached for the door, it opened by itself, revealing my sister wrapped in a bath towel! We were both stunned. I saw her smooth shoulders, her slightly upturned,
sensual lips, and a few drops of water that made her skin appear even whiter and smoother! Her wet hair hung down, slightly curled,
perfectly accentuating the long, flowing lines of her face! The sliver of cleavage barely contained by the towel was so alluring. Her chest rose and fell with her rapid, nervous breathing. I
was mesmerized, and she stared back at me, her eyes filled with surprise and bewilderment! We stood there, staring at each other! The early spring air was chilly, and
I shivered in the atmosphere! My sister snapped out of it, nervously squeezed past me, went back to her room, and quietly closed the door.

I stood in the bathroom, the light off. My penis had unconsciously become erect, straining against my underwear. I wondered if my sister
had seen it! I slipped my hand inside my underwear and began to masturbate, leaning against the wall behind me. My back touched something soft.
In the dim light of the living room wall lamp, I saw it was my sister's underwear that she had taken off before showering! I couldn't resist. I grabbed her underwear and took
a deep breath—that familiar yet strange scent! It was my sister's! The smell of her genitals! And it was a little wet. I didn't know if it was
vaginal discharge. My lust was rising, and I couldn't help but lick it. It was pungent, slightly salty. I knew it was her discharge, it was from her
genitals. I pressed the wet spot against my penis. The soft underwear gave me a wave of pleasure, but an even greater pleasure came from my fantasies about my sister!
I couldn't help but rub my penis hard, rubbing it rapidly. The orgasm came so quickly and so intensely that I forgot to
take my underwear off my penis. My semen shot onto the bathtub, the bathroom floor, and my sister's underwear!

Like a child who had done something wrong, I slipped back to my room! Thinking back, two and a half years ago, I had also secretly taken her underwear to masturbate, and slowly, I even fell asleep
!

I woke up after 9 a.m.! My sister had already gone to work. Remembering the mess I'd made last night, I panicked and rushed to the bathroom
—there was nothing there! On the balcony—only underwear! No panties! I've been waiting anxiously all day!

That evening, the two of us sat opposite each other at the dining table, the food barely touched. My sister and I both seemed preoccupied, occasionally stealing glances at each other
. The way my sister looked at me was sometimes shy, sometimes confused, and sometimes sweet. But the way I looked at her, I believe, was a guilty,
thieving look.

"I think we're deliberately keeping a distance, aren't we?" the older sister suddenly said.

"Right?" I didn't know what she wanted to say, so I answered hesitantly!

"Are we going to live like this forever?" the older sister asked again. "Will we always be so distant?"

"I don't want to," I said, "I don't want to..."

"Then what are you thinking about?" the older sister pressed.

"I miss you!!" I suddenly looked at her and shouted!

Silence, a long silence. My sister didn't say a word, just looked at me, but there was no shock or the usual confusion in her eyes. I kept
looking at her too, watching her breathing become more and more rapid, her face flushed. Across the table, I could gradually hear her breathing, and I believed she could hear me too
!

I stood up, slowly walked to her, looked down at her, and softly called out, "Sister..."

My sister suddenly went limp. I caught her and lifted her off the high-backed chair, and we both fell onto the carpet! I frantically tried to pull at her belt
, and she was looking for mine too. I said, "Do it yourself!"

I immediately ripped off that damned belt and pulled my underwear down to my knees. My sister also unbuckled her belt and
pulled her underwear down forcefully. Before she could even get them off, I grabbed my penis and thrust it in. "Ahhhhhh!!" my sister cried out loudly. I didn't give her a chance to catch her breath
, pushing all the way in and pinning her down as I fucked her. My sister's vagina was very slippery; she must have been wet earlier. It had been over a year since I'd penetrated her, and her vagina
seemed even slipperier than before. I could easily reach her G-spot. I pressed myself against her, no kissing, no caressing, just frantic thrusting.
The sounds of flesh colliding and the unique sounds of vaginal fluid rubbing against genitals filled the air with a lewd atmosphere!

"Ah... Fuck me! I want my little brother to fuck me! I can't take it, I want it, I want it..." the older sister screamed loudly, "I want it, fuck me now!!"

"Oh... I'm fucking you, sister, your little brother is fucking you!" I responded to her, my penis thrusting even harder. "Little brother... good little brother, Xiao Ning,
I missed you so much..."

"What are you missing about me, sister!"

"I want you to fuck me, ah... I can't hold back anymore, ah... ah... I don't like sex anymore if you don't fuck me. I want stimulation, ah... ah... I want
stimulation, I want it, I want it, I want it..." the older sister screamed wildly.

"Oh, this feels so good, my little brother, ahhh... ahhh... I'm going to die from pleasure... Please, just fuck me to death, I want to be fucked to death by my little brother,
ahhh... ahhh..."

"Sister, Xiao Ran... my Xiao Ran... I miss you so much... I want to fuck you so much, so much, I think about it every day!" I pressed against her vagina, and in
my excitement, I said the word "fuck" to her for the first time: "Ah..." My sister shouted excitedly, "Yes, fuck me, fuck me... I want you to fuck me! Insult
me, I want you to swear, I want it, I want it..."

"What do you want to hear, sister? Do you want me to fuck you?" I got even more excited, and I felt waves of sensation on my glans!

"Yes, yes, I want to hear it, tell me to fuck you..."

"What the hell are you talking about... tell your brother!" I went even further, fueling our already heightened excitement!

"Fuck...fuck my pussy!" The older sister paused for a moment, but still blurted it out, then her face immediately lit up with extreme excitement! "Fuck my pussy,
little brother, fuck my pussy!"

I was incredibly excited listening to this, the sensation in my glans growing stronger and stronger. I knew I was almost there, so I thrust even harder into her vagina, stimulating her as I cried out, "I want to fuck your
vagina, fuck my sister's vagina! Little brother is fucking sister's vagina..."

"Ah...ah...ah..." The older sister's cries were out of control, her lower body thrusting upwards incessantly, her mouth unconsciously uttering, "Fuck my cunt, fuck my..."

"Fuck, fuck my pussy... ah..." Her whole body convulsed, the orgasm was so stimulating, my sister was like a bow, her lower body pressed against my
penis, her head against the carpet, I felt like I was being lifted up by her!

This lasted for four or five seconds, then she collapsed onto the carpet as if paralyzed! Her orgasm amplified my excitement; she completely lost consciousness
. I felt like I was manipulating a puppet, but the feeling was incredibly unique and exhilarating. I thrust in and out a dozen more times, and my semen uncontrollably poured into
my sister's vagina!

I lay exhausted on top of my sister, but she didn't react at all. I was a little scared, but then I listened and she still had a heartbeat! So I felt relieved.

After about two or three minutes, my sister let out a long sigh and slowly woke up! She opened her eyes and saw me lying on top of her, looking at her… My sister gave me
a sweet smile: “You naughty boy!” I smiled too, lowered my head, and gave my sister a long kiss!

"Are you satisfied now?" my sister asked with a smile. "You won't have to take care of yourself with my underwear tonight, right?"

"You found out again!" I said with a shameless grin. "Where are your underwear from last night? I didn't see you hanging them out to dry!"

"I'll keep it as a souvenir," my sister said with a grin! "Can you carry me to bed? It's a bit cold here..." my sister said, looking at me sweetly.

"Are all women who are conquered this obedient?" I asked with a smile. "Of course, you'll find out when you have a girlfriend!"

"Aren't you one?" I teased her as I stood up, holding her in my arms. My penis slid out of her vagina, and semen immediately flowed
down her thighs.

"You're so annoying! You've gotten my clothes dirty again, they're brand new..." my sister scolded. "And you didn't even use a condom, now I have to take my pills again!"

"It's okay to take medicine," I coaxed her.

"Medicine has side effects, it'll make you gain weight!" The older sister pouted her sexy lips. "I don't want to gain weight!"

I couldn't resist kissing her: "Then I'll definitely wear it next time!"

I glanced at her genitals and said with a wicked grin, "Since you have to take your medicine today anyway, how about..."

"How about what?" my sister asked. "How about...do it again!" I thrust my finger into my sister's vagina, which was full of semen!

"Ah..." my sister cried out. "You bad boy, stop picking at me... Ah... I hate it... Ah... Ah..."

Her vagina was extremely sensitive after her orgasm. I ran my fingers back and forth inside her a few times, and she couldn't take it anymore and screamed. She leaned limply against my chest
!

"You looked so sexy during sex, sis..." I whispered in her ear. "Ugh... Ah... Ahh... You're so naughty... Ah... No... Ah..."
My sister went limp, letting my fingers rub all over her vagina. "Take off your clothes, shall we go to bed?" I
said while playing with my sister's vagina. "Mmm... Take them off... Ah... Stop... Take them off and then I'll do it... Ah..." My sister became so obedient and docile!

I pulled my finger out; a thin, sticky thread still connected my fingertip to her vagina. My sister let me undress her completely in the living room, and I quickly
stripped off my own clothes as well. I pulled my sister close, gave her a long kiss, and inserted my finger back into her vagina! Her vagina rhythmically gripped
my finger. We walked into her and her husband's bedroom like that, half-embracing, half-holding her, my finger still inside her.

I gently placed my sister on the bed, and lay down beside her, my fingers still inside her vagina. I wasn't in a hurry to have sex with her; instead, I slowly rubbed her vagina.
My sister moaned softly, enjoying it: "So good... mmm... mmm... tingling, like an electric current..."

"Are you comfortable playing with your little brother?"

"It feels so good, I love being played with by you. It's been over a year since you've played with me, and sex feels so bland, I'm almost tired of it," my sister said, her eyes filled with desire
. "Will you let me play with you again?" I asked. "After all this, how could I not let you?" my sister said coquettishly, her buttocks wiggling comfortably, letting my fingers
caress her. "I really enjoy being humiliated right now..."

"What is humiliation?" I asked my sister. "Idiot, wasn't that what you just did?"

"Just now? What did you mean just now?" I asked my sister, feigning ignorance. "You mean what you were saying just now..."

"What did you say? How am I supposed to know if you don't tell me?!"

"Say it... say it..." The older sister hesitated, lowering her head shyly!

I forcefully inserted my fingers into her vagina a few times, and my sister immediately couldn't take it anymore and screamed loudly, "Ah...ah...ah..."

"Tell me what you said," I asked, seizing the opportunity. "Tell me quickly, you'll feel better if you do!"

"Say it... say it... say fuck!" my sister shouted, immediately getting excited... "Whose pussy are you fucking?" I was also immersed in
this strange stimulation, actively seeking it out. "Put it in, hurry up and put it in," my sister couldn't take it anymore, "Put it in and I'll tell you, okay
..."

My penis was already erect from this stimulation. I pulled my fingers out, straddled my sister, and placed the head of my penis against her vagina. After getting some of her vaginal
fluid on it, I pushed the head inside. "Oh..." My sister let out a comfortable sigh, but immediately felt unsatisfied: "Put it in, all the way in, little brother,
I can't take it anymore!"

"Then tell me first, whose pussy are you fucking?" I provoked her! My sister trembled all over. I knew she was about to tell me, and I desperately wanted to
hear it too. "Fuck...fuck my sister's pussy, fuck Xiao Ran's pussy, okay..." I thrust my penis in. "Ah...fuck my sister's pussy
...fuck my pussy..." my sister screamed excitedly! "Fuck Jiang Xiao Ran's pussy...Jiang Xiao Ran..."

I lifted my sister's legs and placed them on my shoulders, then pressed my entire body against her vagina and fucked her. Her vagina, still wet from being played with, was already almost unbearable after just a few thrusts. "Fuck
me... ahh... ah... little brother fucking me... Jiang Xiaoran is being fucked by her little brother... ah... ahh... it feels so good... little brother... I'm going to die
..."

My sister and I started having sex without any restraint on the bed in my sister and brother-in-law's bedroom! And we couldn't stop!

From my sister, I learned about various sexual matters; in fact, she trained me! And I, in turn, trained my wife!
The humiliation I learned from my sister, I used on my wife a few years later, transforming her from a pure young woman into a wanton slut! I don't
think this is a perverted thing! On the contrary, my wife and I both feel very happy now.

【over】

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