The unexpected gain from my incestuous relationship with my sister

On Friday night, I couldn't resist again. Before my sister came back from her tutoring class, I sneaked into her room and masturbated. I took her underwear from the closet, but just as I was about to ejaculate, I heard her footsteps coming upstairs. Although I put the underwear back, it was too late to leave her room, so I quickly hid under her bed, waiting for a chance to leave. My sister came in singing and locked the door behind her. Because the bed sheet hanging over the edge of the bed covered me, my sister didn't notice me.

"Thud!" My younger sister's school skirt fell to the floor. She picked it up and threw it onto the bed. Then, there was another "Thud!" on the bed. I guess it was her top that she took off, but her bra slipped off the bed. My sister went to the bedside, picked up the bra, and put it back on the bed. "Whoosh!" She lifted one leg and then the other. It seemed she had taken off her underwear too. Although I really wanted to peek, I was afraid my sister would find out. My sister walked naked into the bathroom. I thought I could take the opportunity to leave the room, but my sister didn't close the bathroom door. Now I don't know how long I'll have to wait. I heard a strong splash of water from the bathroom; I thought she was probably peeing. What a pity. After hearing but not seeing the rustling water, I heard the sound of the showerhead. My sister started showering. I didn't expect that she only closed the bedroom door but not the bathroom door. Now I can't get out. After showering, my sister sat in a chair and started doing her homework. Oh no! It looks like I can't get out today, because my sister usually doesn't go to sleep until one or two in the morning when she starts studying.

I unknowingly fell asleep during this waiting time, until I heard strange noises and slowly woke up to check the time. Wow, it's already 1:30! Has my sister still not gone to sleep? I lifted the sheet a little more and saw a piece of cloth on the floor in front of me. Upon closer inspection, it was the underwear I had used to masturbate that afternoon. However, it looked wrinkled, and there was a shiny reflection in the crotch. Then I heard a strange noise again, which must have been coming from the chair. I glanced up and was shocked to find my sister leaning against the chair with her right leg across the bed. Her right side of her fair buttocks and bright red vulva were completely exposed in front of me.

My sister's vulva is so beautiful—sparse pubic hair, tender red labia, a prominent clitoris, a red anus, and a barely visible clitoris. It's incomparable to any of the pornographic pictures I've seen before. My sister's fingers constantly caressed her vulva, while her other hand rubbed her small breasts, kneading her erect nipples. Her fingers guided the vaginal fluid flowing from her vulva to her clitoris, gently massaging it. Her right hand slipped inside from behind, lightly touching it with her fingers... He gently teased the outside of her vagina, watching her vulva and anus contract and relax, gradually increasing the speed. Soon, she let out a soft moan, her body convulsing for about half a minute. The sounds gradually subsided, and the convulsions stopped. She then lay limply on the chair, taking a while to recover before collapsing back onto the bed. He hadn't expected to witness his sister masturbating so closely.

After ten minutes of silence, he assumed she was asleep. Just as he was about to get off the bed, she started making sounds again. This time, however, the moans sounded different, as if she were being disturbed by something, her body constantly rolling around on the bed.

With a "thud," a small booklet was pushed off the bed by my younger sister. She didn't seem to react. I looked at the fallen book; the cover said "...Sex..."

Wow! Could my sister have been learning masturbation from this book? I carefully and suspiciously pulled the book inside. The first few pages were illustrations of male and female sexual anatomy, with fluorescent markings on the "proper terms." The next few pages were about masturbation methods and tools. As I flipped through the pages, I realized my sister had read at least half of it. Suddenly, I noticed a bookmark in the middle. I opened that page, and wow! It's SM. There are several pictures teaching how to tie someone up. The captions on the pictures say:

"...Tie yourself up with ropes and fantasize about being raped by bad people. You may reach another kind of climax due to the constraints of your moral values, especially when you fantasize about being raped by your male relatives (father, brother, younger brother, male classmates...)..."

Listening to my sister's moans mixed with "uh...uh...uh," am I fantasizing about being raped by me, her brother, and crying out "brother...no...don't want to"?

I continued flipping through the booklet. The next few pages contained stimulating SM, STD prevention, pregnancy... My sister probably hadn't seen these before, so she didn't highlight the important parts. Turning to the last page, I found several photos tucked inside. One photo showed a plastic ruler next to a bright red straw mushroom, about 16 or 17 centimeters long and 4 or 5 centimeters thick, growing among a clump of black grass.

Wait, that's strange. Isn't that a mushroom? And that's a penis! That penis is probably about the same size as mine. Wait, the more I look at it, the more it looks like one. Then I saw the birthmark on my inner thigh—oh my god! That second one is mine. I have no idea when my sister took the picture. Looking at the date, 2000/6/12-11:47, that was the Monday before last. That day... that day my friends came to my house to celebrate my birthday. They kept plying me with alcohol. Strangely, I passed out after only 9 o'clock. When I woke up the next day, my head was still throbbing. Could it be that my sister took the picture while I was unconscious?

The next few pictures were even more unbelievable. One was a picture of my sister holding my penis with both hands and sucking it with her mouth. The last picture was a picture of my sister in shock with her face covered in semen. My sister actually did this to me while I was unconscious. If only I had been awake at that time. But as I was looking at the pictures, I felt that something was not right. Then I heard my sister's rapid moans. After a while, she became quiet again. My sister probably came again. I never thought that my usually well-behaved sister would be so lewd in private.

I waited quietly for almost half an hour. My sister masturbated twice, and this time she must have fallen asleep from exhaustion. I carefully crawled out from under the bed, slowly stood up, and looked back. To my horror, I discovered that my sister had tied her eyes up with a white cloth again, covered her mouth with a piece of transparent tape, and tied her wrists with scout rope. Even more outrageous, she spread her legs apart and tied her knees together with scout rope and scout sticks in an "M" shape, just like in that bondage picture. My sister had fallen asleep without even untying herself.

Looking at my sister's naked body, bound by her own hands, and her genitals overflowing with lustful fluids, I could no longer restrain myself. "I want to fuck her... I want to fuck her," I thought. After tightening the ropes binding my sister's hands and feet a little more, I bent down to lick her small and cute breasts. Her bright red nipples slowly hardened, and my sister seemed to feel something again. Perhaps it was because I forgot to shave, as the pricking made my sister unconsciously try to push my head away.

As I was taking off my clothes, my sister seemed to wake up from the earlier harassment and tried to untie the ropes binding her. Afraid she would untie them, I immediately restrained her. Only then did she realize that someone was on the bed and that her hands and feet were still tied with ropes and a stick, leaving her completely at my mercy. Although she struggled, I held her down. Tears seemed to seep through the white cloth covering her eyes. I easily pressed the scout stick forward, pinning her hands down as well. Her entire vulva was exposed to me. I buried my head between her legs and frantically licked the overflowing vaginal fluid from her clitoris with my tongue.

Seeing that my sister no longer resisted, I stopped my movements, and then with my other hand I pressed my cock down to press against the small hole. My sister seemed to feel what was going to happen next, and her body was shaking constantly, but I couldn't stop my burning desire. I slowly pushed inside, and the moment the glans broke the hymen, my sister My waist arched up in pain, and I continued to push forward. The glans was like a sharp knife, cutting open my sister's tight vagina. I finally stopped when it reached the cervix. My sister seemed to have fainted from the pain. I slowly began to pull out. The crown of the glans was rubbed tightly by the layers of tender meat in the vagina. Every time I pulled out a little bit, it felt like an electric shock.

I pushed my penis back into her still-bleeding hole. My sister, of course, writhed in pain again. After a while, she seemed to have gone numb from the pain and stopped moving. I then lifted her buttocks with both hands and began thrusting wildly. However, her vagina was too tight; I couldn't last even five minutes. I thrust deeply and forcefully, ejaculating inside her. I pulled out my gradually softening penis, and the semen immediately overflowed, mingling with her blood and vaginal fluids, making her vulva a messy mess.

Sometime later, the white cloth covering my sister's eyes slipped off, and she stared at me for a moment, her tear-filled eyes glistening.

"Little sister, I'm sorry! You're so beautiful, I couldn't help myself... Please forgive me..."

"Waaah! Waaah!" The little sister kept sobbing...

After a while, her eyes finally softened, no longer looking the same as before.

"Sis...please forgive your brother...okay..."

My sister finally nodded. I tried to let go of her hand, and she didn't attack me. Then I gently peeled off the tape from her mouth. At this moment, my sister suddenly spoke.

"Ouch! Ouch!"

"I'm sorry!" "

I...I...it's...my first time~Brother...you...Ouch~it hurts so much!" My sister pinched me hard a few times, almost making me bruise. "

I'm sorry! But seeing you studying this book so diligently made me want to practice it..."

"The book...?"

"Here, this book '...sex...', you not only highlighted the key points, but also have my picture."

My sister's face turned red with embarrassment. I helped my sister untie the ropes binding her.

"Sis, I'm sorry~ I ejaculated inside just now, is it okay today?"

"Yeah! It's okay today!"

"Did you ejaculate just now?"

"Brother was so rough, it hurt so much down there, how could I ejaculate!"

"Sis... I want more..."

"No... it's... so numb and painful down there."

I didn't force my sister anymore. Looking at my sister covered in cold sweat, I lay on top of her and helped her clean her private parts. My sister's vulva was red and swollen, and a mixture of vaginal fluid, semen, and menstrual blood was flowing all over her private parts and the sheets. I really used too much force just now. When I opened my sister's red and swollen labia majora, it was even worse inside. In addition to the mixture of fluids overflowing, the hymen at the vaginal opening was torn into five pieces. However, some of the menstrual blood at the wound had already slowly congealed. It

really .

"Sorry! I hurt you just now, does it still hurt?"

"Of course it hurts!"

"I'm sorry! Don't be angry."

"Okay! I forgive you! Brother, I need to go to the toilet."

I moved away, and my sister slowly sat up, supporting herself with her hands. She tried to move her legs, but couldn't because of the pain in her private parts.

"I'll help you."

I picked up my sister's weak body and went into the toilet, gently placing her on the toilet seat, but I didn't hear the sound of water for a long time.

"Brother, go out for a bit."

"Why?"

"Don't look, I can't pee!"

"No way, you won't let me see, but I'll still look."

I spread my sister's legs apart, my fingers hovering over her urethra, whistling softly. Finally, it worked, a powerful jet of water gushed out of her urethra. My sister covered her face shyly with her hands, and then smelled a foul odor. It turned out she had even pooped.

"Oh~ It's so thick and big~"

"Don't look! I told you to go out first!"

After a while, my sister finished pooping, slowly stood up and leaned against me, gently wiping her private parts and anus clean. However, her expression told me that she was still in pain. I then helped her wash her sweaty body. When I saw her clean her anus, my lust rose again. I suddenly grabbed my sister's buttocks with both hands and pressed my penis against her anus from behind.

"Ah! No! Not there!"

"Why not?"

"Yours is so big, and mine is so small."

"Your poop was almost as thick as my penis just now, it'll go in."

"No, I'll be in so much pain tomorrow I won't be able to walk."

After arguing with her sister for a long time, she managed to avoid having her anus torn open after pleading, but her newly deflowered virgin vagina was not spared. She moved her penis forward to press against her labia, and then pushed it into her vagina again, only halfway in.

"Ouch~ it hurts~! Be gentle~" her sister screamed in pain, and her whole body went limp.

I gently held my sister, making her kneel on the floor with her hands on the bathtub. Using the lubrication of her vaginal fluid, I easily pushed myself all the way in. Although I had just ejaculated and was less sensitive this time, being entangled by my sister's newly opened little hole was really hard to resist. It felt like I was trying to trap my penis. I gently rubbed my sister's breasts with both hands, and her nipples hardened again. As I slowly thrust in and out, my sister moaned. I thought my sister was probably more able to adapt, so I increased the speed. All sorts of strange moans came from my sister's mouth and nose. Finally, her upper body went limp and she lay on the floor, her buttocks twisting wildly.

"~~I'm coming~~I'm coming~~"

Her vagina continued to contract strongly, finally bringing my sister to her first orgasm since losing her virginity. Her whole body convulsed continuously, and I took the opportunity to ejaculate into her vagina for the second time. This time, it took her a long time to calm down.

After cleaning her body again, I helped her back to bed. My sister wanted me to sleep with her, but she fell asleep immediately. Looking at her innocent face as she slept, I couldn't connect it with her appearance just now. I gently kissed

her forehead and fell asleep too.

When I woke up the next day, my sister was already up. She was coming out of the bathroom to wash up, but when I saw her slowly walking towards me with her legs open, I couldn't help but laugh.

"What are you laughing at! It's all your fault! You stink!"

"I'm so sorry~ I feel so sorry for you looking like this, are you still in pain?"

"I'm a little better! If Mom and Dad find out, you're dead!"

"No, they don't get up until 8 or 9 o'clock, but you probably can't ride your bike like this, I'll take you to school."

"Okay~ okay..."

After taking her to school, I went home to prepare for class, and I ran into my dad in the kitchen.

"Keep it down next time you watch porn. If I hadn't held your mom back last night, she would have come upstairs and beaten you up."

Dad said in a low voice...

"Thank you, Dad!" (Wow! Luckily Mom didn't come up, or my sister and I would have been in big trouble.)

"And it's not good to disturb your sister's sleep either! She has to go to class and take exams! Remember! Don't let it happen again!"

I went to class, but I couldn't concentrate at all. My mind was full of thoughts about last night. As I

thought about it I felt something was off, but I couldn't quite put my finger on what it was.

After lunch, I went for a walk with my classmates. This place has nothing much but historical sites, so it's often crowded with tourists. As usual, a couple asked us to take their picture. Seeing the flash, I suddenly remembered something and understood the question that had been bothering me. After school, my parents were out setting up their stall, leaving the house empty. Going upstairs to my room, I passed my sister's room. She was already back. After a sexually suggestive interrogation, she finally confessed to her accomplice – Liu Shiyi.

I remember she lived just down the next street and was my sister's classmate. She was quite cute, but I never expected her to be so precocious. She used to come over often to discuss homework with my sister, and several times they would discuss until one or two in the morning before going home, and she would sleep in my sister's room. Those photos that day were taken by Shiyi, and that book was also given to my sister by her. Even the rope and stick were lent to my sister by her. I never thought that such an innocent-looking girl could turn my sister into a little slut. If I have the chance someday, I must fuck her.

On Sunday morning, my parents went to set up a stall at the temple entrance and wouldn't be back until evening. They were supposed to play basketball with their classmates, but I stood them up. Now it was just my sister and me at home, so I decided to have a family gathering with her. When I got to my sister's bedroom door, I heard moaning coming from inside. I gently opened the door and found my sister lying on the bed, her back to me, masturbating, like a frog. Her hands were still tied with ropes. I hadn't expected my sister to be so lewd, so I decided to give her a surprise. Using my superb stealth skills from the game "Heaven's Punishment," I quietly walked behind her, quickly pulled out my engorged penis, and pressed it against her vaginal opening. I held down her hands with one hand and pressed down hard on her buttocks with the other. I thrust my penis forward forcefully, pushing the glans directly into her vagina.

Strange... why is it so tight...?

"Ah~! It hurts~~~ It hurts~~~!" My sister's body kept twisting.

"It hurts? How can this be?" I paused for

a moment. "What? It's Shiyi!" I looked ahead and was shocked to see that Shiyi was crying in pain.

"It hurts! Pull it out!"

She really came uninvited. I didn't expect that I wanted to have sex with her yesterday, and today I actually did it. Shiyi was still struggling, but I didn't let go. Instead, I held on even tighter and then forcefully pushed my penis into her vagina. I didn't expect that her tender hole was so tight. Every time I inserted it a little, Shiyi would struggle. Because there wasn't enough vaginal fluid, Shiyi was crying out in pain.

"It hurts so much!"

"Didn't you also fantasize about being raped?"

"No! It hurts! Waaah!" Shiyi started sobbing.

"This won't do! I'm going to punish you!"

I steeled myself and started to pull out. Every time I moved, she screamed. But there was an empty house on one side and a main road on the other, so no one could hear her screams. So I thrust in again. Her voice could only be described as a wail. Her vagina was still very tight, rubbing my penis painfully. So I gently caressed her breasts and vulva. I squeezed her breasts, which were a cup size larger than hers. They were softer than hers because they had more fat. I pinched and played with her nipples with my fingers. My other hand went into her vulva and kept rubbing her clitoris. I rubbed for a long time before she started to get wet. Shiyi had probably gotten used to it. Instead, she let out soft moans. I stopped.

"What? Are you feeling pleasure?"

"..." Shi Yi remained silent.

"Do you want to continue?" "

..." Shi Yi remained silent.

"No! Then I'll pull out!"

"No...don't..." "Do you

want to?...or don't you want to?... " "

...I want to..."

"Very good! As long as you don't tell anyone about this! I can treat you gently! Make you feel very comfortable!"

Shi Yi thought for a while before nodding, and I started thrusting again, but this time I slowed down. I slowly enjoyed the wet and tight tender hole. She closed her eyes to feel it, and unexpectedly she got into the mood immediately. Her juices flowed out like a gushing spring, and her moans grew louder and louder. I also increased my speed along with her moans.

"Hehe! You're just like my sister! Once you start, you don't want to stop."

"..." Shiyi could only close her eyes and silently admit it, because her body had already given itself away...

After a while, Shiyi's whole body trembled and she reached orgasm. The tender flesh inside her vagina kept contracting, rubbing against me so hard that I couldn't stand it. So I forcefully thrust deep inside and started the filling operation. When her vagina calmed down, I pulled out my limp penis. The white fluid mixed with red fluid that I had just filled in overflowed from the broken opening. It turned out that Shiyi was also a virgin. But at this moment, a sound suddenly came from the doorway...

"Brother! Do you like it?"

I hadn't even noticed my sister standing right behind me. It turned out that the reason I could get Liu Shiyi so easily was because of my sister's arrangement. The rest of the afternoon was spent playing threesome with my sister and Liu Shiyi, but this time it was my turn to be so sore that I couldn't stand up.

I couldn't resist again on Friday night. Before my sister came back from her tutoring class, I secretly went to her room to masturbate. I took her underwear from the closet, but just as I was about to ejaculate, I heard my sister's footsteps coming upstairs. Although I put the underwear back, it was too late to leave my sister's room, so I hurriedly hid under her bed, waiting for a chance to leave. My younger sister came in singing and locked the door behind her. Because the sheet hanging over the edge of the bed covered me, she didn't notice me.

"Plop!" My sister's school skirt fell to the floor. She picked it up and threw it on the bed, followed by another "Plop!" from the bed. I guessed it was her top, but her bra had slipped off the bed. My sister went to the bedside, picked it up, and put it back. "Whoosh!" She lifted one leg and then the other; it seemed she had taken off her underwear too. Although I really wanted to peek, I was afraid of being discovered. My sister went into the bathroom naked. I thought I could take the opportunity to leave the room, but my sister didn't close the bathroom door. Now I don't know how long I'll have to wait. I heard a strong splash of water from the bathroom; I thought she was probably peeing. What a pity. After hearing but not seeing the rustling water, I heard the sound of the showerhead. My sister started showering. I didn't expect that she only closed the bedroom door but not the bathroom door. Now I can't get out. After showering, my sister sat in a chair and started doing her homework. Oh no! It looks like I can't get out today, because my sister usually doesn't go to sleep until one or two in the morning when she starts studying.

I unknowingly fell asleep during this waiting time, until I heard strange noises and slowly woke up to check the time. Wow, it's already 1:30! Has my sister still not gone to sleep? I lifted the sheet a little more and saw a piece of cloth on the floor in front of me. Upon closer inspection, it was the underwear I had used to masturbate that afternoon. However, it looked wrinkled, and there was a shiny reflection in the crotch. Then I heard a strange noise again, which must have been coming from the chair. I glanced up and was shocked to find my sister leaning against the chair with her right leg across the bed. Her right side of her fair buttocks and bright red vulva were completely exposed in front of me.

My sister's vulva is so beautiful—sparse pubic hair, tender red labia, a prominent clitoris, a red anus, and a barely visible clitoris. It's incomparable to any of the pornographic pictures I've seen before. My sister's fingers constantly caressed her vulva, while her other hand rubbed her small breasts, kneading her erect nipples. Her fingers guided the vaginal fluid flowing from her vulva to her clitoris, gently massaging it. Her right hand slipped inside from behind, lightly touching it with her fingers... He gently teased the outside of her vagina, watching her vulva and anus contract and relax, gradually increasing the speed. Soon, she let out a soft moan, her body convulsing for about half a minute. The sounds gradually subsided, and the convulsions stopped. She then lay limply on the chair, taking a while to recover before collapsing back onto the bed. He hadn't expected to witness his sister masturbating so closely.

After ten minutes of silence, he assumed she was asleep. Just as he was about to get off the bed, she started making sounds again. This time, however, the moans sounded different, as if she were being disturbed by something, her body constantly rolling around on the bed.

With a "thud," a small booklet was pushed off the bed by my younger sister. She didn't seem to react. I looked at the fallen book; the cover said "...Sex..."

Wow! Could my sister have been learning masturbation from this book? I carefully and suspiciously pulled the book inside. The first few pages were illustrations of male and female sexual anatomy, with fluorescent markings on the "proper terms." The next few pages were about masturbation methods and tools. As I flipped through the pages, I realized my sister had read at least half of it. Suddenly, I noticed a bookmark in the middle. I opened that page, and wow! It's SM. There are several pictures teaching how to tie someone up. The captions on the pictures say:

"...Tie yourself up with ropes and fantasize about being raped by bad people. You may reach another kind of climax due to the constraints of your moral values, especially when you fantasize about being raped by your male relatives (father, brother, younger brother, male classmates...)..."

Listening to my sister's moans mixed with "uh...uh...uh," am I fantasizing about being raped by me, her brother, and crying out "brother...no...don't want to"?

I continued flipping through the booklet. The next few pages contained stimulating SM, STD prevention, pregnancy... My sister probably hadn't seen these before, so she didn't highlight the important parts. Turning to the last page, I found several photos tucked inside. One photo showed a plastic ruler next to a bright red straw mushroom, about 16 or 17 centimeters long and 4 or 5 centimeters thick, growing among a clump of black grass.

Wait, that's strange. Isn't that a mushroom? And that's a penis! That penis is probably about the same size as mine. Wait, the more I look at it, the more it looks like one. Then I saw the birthmark on my inner thigh—oh my god! That second one is mine. I have no idea when my sister took the picture. Looking at the date, 2000/6/12-11:47, that was the Monday before last. That day... that day my friends came to my house to celebrate my birthday. They kept plying me with alcohol. Strangely, I passed out after only 9 o'clock. When I woke up the next day, my head was still throbbing. Could it be that my sister took the picture while I was unconscious?

The next few pictures were even more unbelievable. One was a picture of my sister holding my penis with both hands and sucking it with her mouth. The last picture was a picture of my sister in shock with her face covered in semen. My sister actually did this to me while I was unconscious. If only I had been awake at that time. But as I was looking at the pictures, I felt that something was not right. Then I heard my sister's rapid moans. After a while, she became quiet again. My sister probably came again. I never thought that my usually well-behaved sister would be so lewd in private.

I waited quietly for almost half an hour. My sister masturbated twice, and this time she must have fallen asleep from exhaustion. I carefully crawled out from under the bed, slowly stood up, and looked back. To my horror, I discovered that my sister had tied her eyes up with a white cloth again, covered her mouth with a piece of transparent tape, and tied her wrists with scout rope. Even more outrageous, she spread her legs apart and tied her knees together with scout rope and scout sticks in an "M" shape, just like in that bondage picture. My sister had fallen asleep without even untying herself.

Looking at my sister's naked body, bound by her own hands, and her genitals overflowing with lustful fluids, I could no longer restrain myself. "I want to fuck her... I want to fuck her," I thought. After tightening the ropes binding my sister's hands and feet a little more, I bent down to lick her small and cute breasts. Her bright red nipples slowly hardened, and my sister seemed to feel something again. Perhaps it was because I forgot to shave, as the pricking made my sister unconsciously try to push my head away.

As I was taking off my clothes, my sister seemed to wake up from the earlier harassment and tried to untie the ropes binding her. Afraid she would untie them, I immediately restrained her. Only then did she realize that someone was on the bed and that her hands and feet were still tied with ropes and a stick, leaving her completely at my mercy. Although she struggled, I held her down. Tears seemed to seep through the white cloth covering her eyes. I easily pressed the scout stick forward, pinning her hands down as well. Her entire vulva was exposed to me. I buried my head between her legs and frantically licked the overflowing vaginal fluid from her clitoris with my tongue.

Seeing that my sister no longer resisted, I stopped my movements, and then with my other hand I pressed my cock down to press against the small hole. My sister seemed to feel what was going to happen next, and her body was shaking constantly, but I couldn't stop my burning desire. I slowly pushed inside, and the moment the glans broke the hymen, my sister My waist arched up in pain, and I continued to push forward. The glans was like a sharp knife, cutting open my sister's tight vagina. I finally stopped when it reached the cervix. My sister seemed to have fainted from the pain. I slowly began to pull out. The crown of the glans was rubbed tightly by the layers of tender meat in the vagina. Every time I pulled out a little bit, it felt like an electric shock.

I pushed my penis back into her still-bleeding hole. My sister, of course, writhed in pain again. After a while, she seemed to have gone numb from the pain and stopped moving. I then lifted her buttocks with both hands and began thrusting wildly. However, her vagina was too tight; I couldn't last even five minutes. I thrust deeply and forcefully, ejaculating inside her. I pulled out my gradually softening penis, and the semen immediately overflowed, mingling with her blood and vaginal fluids, making her vulva a messy mess.

Sometime later, the white cloth covering my sister's eyes slipped off, and she stared at me for a moment, her tear-filled eyes glistening.

"Little sister, I'm so sorry! You're so pretty, I couldn't help myself... Please forgive me..."

"Waaah! Waaah!" My little sister kept sobbing...

After a while, her eyes finally softened, no longer looking the same as before.

"Little sister... please forgive me... okay..."

My little sister finally nodded. I tried to let go of her hand, and she didn't attack me. Then I gently peeled the tape off her mouth, and at that moment, my little sister suddenly spoke.

"Ouch! Ouch!"

"I'm sorry!"

"I...I...it's my first time~ Brother...you...Ouch~ It hurts so much!" My sister pinched me hard a few times, almost turning me bruised. "

I'm sorry! But seeing you studying this book so diligently made me want to do an internship..."

"The book...?"

"Here, this book '...Sex...', you not only highlighted the key points, but also included my photos."

My sister's face turned red with embarrassment as I untied the ropes binding her.

"Sis, I'm sorry~ I ejaculated inside just now, is it okay today?"

"Yeah! It's okay today!"

"Did you ejaculate just now?"

"Brother was so rough, it hurt so much down there, how could I ejaculate!"

"Sis... I want more..."

"No... it's... so numb and painful down there."

I didn't force my sister anymore. Looking at my sister covered in cold sweat, I lay on top of her and helped her clean her private parts. My sister's vulva was red and swollen, and a mixture of vaginal fluid, semen, and menstrual blood was flowing all over her private parts and the sheets. I really used too much force just now. When I opened my sister's red and swollen labia majora, it was even worse inside. In addition to the mixture of fluids overflowing, the hymen at the vaginal opening was torn into five pieces. However, some of the menstrual blood at the wound had already slowly congealed. It

really .

"Sorry! I hurt you just now, does it still hurt?"

"Of course it hurts!"

"I'm sorry! Don't be angry."

"Okay! I forgive you! Brother, I need to go to the toilet."

I moved away, and my sister slowly sat up, supporting herself with her hands. She tried to move her legs, but couldn't because of the pain in her private parts.

"I'll help you."

I picked up my sister's weak body and went into the toilet, gently placing her on the toilet seat, but I didn't hear the sound of water for a long time.

"Brother, go out for a bit."

"Why?"

"Don't look, I can't pee!"

"No way, you won't let me see, but I'll still look."

I spread my sister's legs apart, my fingers hovering over her urethra, whistling softly. Finally, it worked, a powerful jet of water gushed out of her urethra. My sister covered her face shyly with her hands, and then smelled a foul odor. It turned out she had even pooped.

"Oh~ It's so thick and big~"

"Don't look! I told you to go out first!"

After a while, my sister finished pooping, slowly stood up and leaned against me, gently wiping her private parts and anus clean. However, her expression told me that she was still in pain. I then helped her wash her sweaty body. Watching her clean her anus, my lust rose again. I suddenly grabbed my sister's buttocks with both hands and pressed my penis against her anus from behind.

"Ah! No! Not there!"

"Why not?"

"Yours is so big, and there's such a small one."

"Your poop was almost as thick as my penis just now, it can go in."

"No, I'll be in so much pain tomorrow that I won't be able to walk."

After a long struggle with his sister, she managed to avoid having her anus torn open only after pleading and begging. However, her newly deflowered virgin vagina was not spared. He moved his penis forward to press against her labia and then thrust it into her vagina again, only halfway in.

"Ouch~ It hurts~! Be gentle~" his sister cried out in pain, her whole body going limp.

I gently held my sister, making her kneel on the floor with her hands on the bathtub. Using the lubrication of her vaginal fluid, I easily pushed myself all the way in. Although I had just ejaculated and was less sensitive this time, being entangled by my sister's newly opened little hole was really hard to resist. It felt like I was trying to trap my penis. I gently rubbed my sister's breasts with both hands, and her nipples hardened again. As I slowly thrust in and out, my sister moaned. I thought my sister was probably more able to adapt, so I increased the speed. All sorts of strange moans came from my sister's mouth and nose. Finally, her upper body went limp and she lay on the floor, her buttocks twisting wildly.

"~~I'm coming~~I'm coming~~"

Her vagina continued to contract strongly, finally bringing my sister to her first orgasm since losing her virginity. Her whole body convulsed continuously, and I took the opportunity to ejaculate into her vagina for the second time. This time, it took her a long time to calm down.

After cleaning her body again, I helped her back to bed. My sister wanted me to sleep with her, but she fell asleep immediately. Looking at her innocent face as she slept, I couldn't connect it with her appearance just now. I gently kissed

her forehead and fell asleep too.

When I woke up the next day, my sister was already up. She was coming out of the bathroom to wash up, but when I saw her slowly walking towards me with her legs open, I couldn't help but laugh.

"What are you laughing at! It's all your fault! You stink!"

"I'm so sorry~ I feel so sorry for you looking like this, are you still in pain?"

"I'm a little better! If Mom and Dad find out, you're dead!"

"No, they don't get up until 8 or 9 o'clock, but you probably can't ride your bike like this, I'll take you to school."

"Okay~ okay..."

After taking her to school, I went home to prepare for class, and I ran into my dad in the kitchen.

"Keep it down next time you watch porn. If I hadn't held your mom back last night, she would have come upstairs and beaten you up."

Dad said in a low voice...

"Thank you, Dad!" (Wow! Luckily Mom didn't come up, or my sister and I would have been in big trouble.)

"And it's not good to disturb your sister's sleep either! She has to go to class and take exams! Remember! Don't let it happen again!"

I went to class, but I couldn't concentrate at all. My mind was full of thoughts about last night. As I

thought about it I felt something was off, but I couldn't quite put my finger on what it was.

After lunch, I went for a walk with my classmates. This place has nothing much but historical sites, so it's often crowded with tourists. As usual, a couple asked us to take their picture. Seeing the flash, I suddenly remembered something and understood the question that had been bothering me. After school, my parents were out setting up their stall, leaving the house empty. Going upstairs to my room, I passed my sister's room. She was already back. After a sexually suggestive interrogation, she finally confessed to her accomplice – Liu Shiyi.

I remember she lived just down the next street and was my sister's classmate. She was quite cute, but I never expected her to be so precocious. She used to come over often to discuss homework with my sister, and several times they would discuss until one or two in the morning before going home, and she would sleep in my sister's room. Those photos that day were taken by Shiyi, and that book was also given to my sister by her. Even the rope and stick were lent to my sister by her. I never thought that such an innocent-looking girl could turn my sister into a little slut. If I have the chance someday, I must fuck her.

On Sunday morning, my parents went to set up a stall at the temple entrance and wouldn't be back until evening. They were supposed to play basketball with their classmates, but I stood them up. Now it was just my sister and me at home, so I decided to have a family gathering with her. When I got to my sister's bedroom door, I heard moaning coming from inside. I gently opened the door and found my sister lying on the bed, her back to me, masturbating, like a frog. Her hands were still tied with ropes. I hadn't expected my sister to be so lewd, so I decided to give her a surprise. Using my superb stealth skills from the game "Heaven's Punishment," I quietly walked behind her, quickly pulled out my engorged penis, and pressed it against her vaginal opening. I held down her hands with one hand and pressed down hard on her buttocks with the other. I thrust my penis forward forcefully, pushing the glans directly into her vagina.

Strange... why is it so tight...?

"Ah~! It hurts~~~ It hurts~~~!" My sister's body kept twisting.

"It hurts? How can this be?" I paused for

a moment. "What? It's Shiyi!" I looked ahead and was shocked to see that Shiyi was crying in pain.

"It hurts! Pull it out!"

She really came uninvited. I didn't expect that I wanted to have sex with her yesterday, and today I actually did it. Shiyi was still struggling, but I didn't let go. Instead, I held on even tighter and then forcefully pushed my penis into her vagina. I didn't expect that her tender hole was so tight. Every time I inserted it a little, Shiyi would struggle. Because there wasn't enough vaginal fluid, Shiyi was crying out in pain.

"It hurts so much!"

"Didn't you also fantasize about being raped?"

"No! It hurts! Waaah!" Shiyi started sobbing.

"This won't do! I'm going to punish you!"

I steeled myself and started to pull out. Every time I moved, she screamed. But there was an empty house on one side and a main road on the other, so no one could hear her screams. So I thrust in again. Her voice could only be described as a wail. Her vagina was still very tight, rubbing my penis painfully. So I gently caressed her breasts and vulva. I squeezed her breasts, which were a cup size larger than hers. They were softer than hers because they had more fat. I pinched and played with her nipples with my fingers. My other hand went into her vulva and kept rubbing her clitoris. I rubbed for a long time before she started to get wet. Shiyi had probably gotten used to it. Instead, she let out soft moans. I stopped.

"What? Are you feeling pleasure?"

"..." Shi Yi remained silent.

"Do you want to continue?" "

..." Shi Yi remained silent.

"No! Then I'll pull out!"

"No...don't..." "Do you

want to?...or don't you want to?... " "

...I want to..."

"Very good! As long as you don't tell anyone about this! I can treat you gently! Make you feel very comfortable!"

Shi Yi thought for a while before nodding, and I started thrusting again, but this time I slowed down. I slowly enjoyed the wet and tight tender hole. She closed her eyes to feel it, and unexpectedly she got into the mood immediately. Her juices flowed out like a gushing spring, and her moans grew louder and louder. I also increased my speed along with her moans.

"Hehe! You're just like my sister! Once you start, you don't want to stop."

"..." Shiyi could only close her eyes and silently admit it, because her body had already given itself away...

After a while, Shiyi's whole body trembled and she reached orgasm. The tender flesh inside her vagina kept contracting, rubbing against me so hard that I couldn't stand it. So I forcefully thrust deep inside and started the filling operation. When her vagina calmed down, I pulled out my limp penis. The white fluid mixed with red fluid that I had just filled in overflowed from the broken opening. It turned out that Shiyi was also a virgin. But at this moment, a sound suddenly came from the doorway...

"Brother! Do you like it?"

I didn't even realize that my sister was standing right behind me. It turned out that my sister arranged it so that I could get Liu Shiyi so easily. The rest of the afternoon was spent playing threesome with my sister and Liu Shiyi. But this time, I was so sore that I couldn't stand up.

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The unexpected gain from my incestuous relationship with my sister

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