Family Chronicle: A Passionate Sister and Her Sister Having Sex, Discovered by Their Mother

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Passionate Sister

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(I)

Since my mother and I had sex a few weeks ago, I've gradually gotten used to it. Whenever I need something, my mother tries her best to satisfy me, even though it's a bit frequent for someone my age. But young people's passion is boundless, and my mother isn't a woman who can be easily satisfied.

Of course, my relationship with my mother has to be kept secret because we also have to be wary of my sister, Debbie.
My sister is not yet thirteen, but she's precocious. She has a curvaceous figure, especially her hips, which, although small, are pointed and perky, making her very attractive. However, at first, I didn't realize the changes in my sister's body. In my mind, my sister will always be a little girl who never grows up.

Somehow, my sister seems to sense that something between my mother and me is being kept from her. Fortunately, she hasn't really found out anything yet. Although she's still young and can't control us, it would be bad if she found out.

My mother and I would make love passionately whenever we had the chance—in the kitchen, in the bedroom, in the bathroom, even in the swimming pool. Of course, all of this could only happen when my sister wasn't home. I loved the sneakiness; it was far more exciting than open debauchery.

To me, my sister was still just a spoiled, nosy little kid who frequently ruined our trysts.

In any case, I never really cared about her. It wasn't until she was thirteen and in middle school, in the same school as me, that we had more time to see each other. But there were many guys at school who seemed very interested in my sister. They would always hover around her, guessing her age and her various hobbies.

Whenever these guys bothered my sister, I would angrily step in and chase them all away without hesitation. It wasn't that I wanted to protect my sister; I just thought they were incredibly blind, so shameless as to lay a hand on a mere immature girl.

I'm not trying to be evasive; in fact, in my eyes, my sister truly was an immature girl. At home, she relied on my mother and me for everything. Without us, she knew almost nothing and couldn't do anything.

However, she was indeed jealous of the close relationship between my mother and me. For someone as oblivious as me, not realizing the underlying meaning sooner was my mistake.

Two months passed like this. Sometimes, strange noises would come from my sister's room, but I paid no attention.

One night, I woke up in the middle of the night feeling a bit hungry. Because my sister had been following me around like a shadow these past few days, I hadn't had much opportunity to make love with my mother, so I often woke up in the middle of the night, experiencing the emptiness and loneliness of the night. I decided to go to the kitchen to find something to eat. I thought everyone else must be asleep by now, so I went downstairs naked.

Our house had two floors; my mother and I had our bedroom upstairs, and my sister's bedroom was downstairs, very close to the bathroom.

In the darkness, I groped my way down the stairs to the refrigerator; my sister's room was next to the kitchen.
As I passed through the hallway, I noticed that my sister's door was ajar, letting in a sliver of light.

Out of curiosity, I stopped and peered inside.

Oh! I couldn't believe my eyes!

My sister stood naked in front of the mirror, but she seemed so unfamiliar. The naive little girl was gone, replaced by a budding young woman.

Two breasts now swelled beautifully, whereas two years ago they were bare. Her buttocks were clearly developing, their curves already defined, wide and full; a little more flesh and she would be indistinguishable from a mature woman.

Although she still looked thin and small, and was indeed still a child, there was a clear difference compared to before. In other words, she had begun to mature. Her thighs were no longer as thin as matchsticks, but rather quite rounded and full. Her back looked very supple, her spine straight, no longer the unsightly bulge of her childhood. I never imagined my sister had developed to this extent, completely different from the skinny little girl I remembered.

My younger sister stood in front of the mirror, gazing intently at her reflection, completely unaware that another pair of eyes were watching her from within the mirror. Through the mirror, I could see her entire face, from head to toe. Where there used to be only her belly button, now her skin was flat with a slight curve. Her once flat, board-like chest had now become two sizable mounds, each adorned with two truly adorable little red hickeys.

What shocked me most was that her once hairless inner thighs were now covered with fine, curly, pale yellow pubic hair, with a cute little slit running through them.

Oh! How adorable!

In just a short while, my opinion of my sister underwent a complete 180-degree turn, because the sister standing before me was now a young woman, a lovely, vibrant girl in the throes of puberty, no longer the skinny, small, and somewhat unpleasant little girl she once was.

She was tall, quite beautiful, with a sexy mouth like her mother, and a pair of bright, clear brown eyes inherited from her father. All of this was already enough to leave me speechless, but what she began to do truly shocked me.

My sister stood in front of the mirror, posing provocatively, turning her body from side to side, striking various positions, looking at her young, naked body in the mirror with a touch of self-pity. Then, imitating the models in the photos, she closed her eyes, her hands roaming over her chest, caressing her small, lovely breasts, her slender fingers pinching her nipples, gently rubbing them, her expression one of ecstasy, her teeth clenched on her lower lip, emitting low moans. The scene looked somewhat like a porn star on television, unable to bear the sight of her masturbating.

Standing outside my sister's door, watching this vivid and sensual performance, I was dumbfounded, unable to move an inch. I had never seen anything like it before, and now I was completely captivated, my penis unconsciously becoming erect.

My sister continued to caress her breasts until her nipples were fully hard. Her nipples weren't very large, and I couldn't see them clearly from this distance, but I could still easily tell that her two originally red nipples had turned black.

Her hand slowly moved down, beginning to caress her entire body. Her hand slid over her flat stomach, down to her rounded buttocks, gently kneading and squeezing her hips. She lifted her right leg, her hand starting from her ankle, sliding up her firm calf, past her knee, down her thigh, step by step approaching her groin.

My sister's breathing became heavier, and I breathed along with her. I stared intently at my sister's young and beautiful body, somewhat unable to believe that she was so well-developed at such a young age.

As if rewarding herself, my sister sighed and slid her hand between her legs. Through the mirror, I could clearly see her middle finger inserted into the small cleft at the base of her thigh, gently and rhythmically moving back and forth. However, each time her middle finger only entered the cleft by one knuckle before stopping, not going deep or stirring inside, but it seemed that this was already very satisfying for her.

Of course I knew what she was doing, but I never expected that watching my sister masturbate would excite me so much. I watched with envy as her slender fingers moved freely in and out of that cute little hole, wishing my already painfully hard penis could take its place. I was thrilled by this lewd thought.

Oh, my little sister was satisfying herself with her fingers, and her brother was hiding and watching!
My sister released her breast with her left hand, pressed it against the wall, supported her body, spread her legs, bent her knees, and her right middle finger slowly slid into the crevice until the entire finger was buried inside.

I, who was watching from the side, could no longer hold back. I grabbed my penis and began to rub it vigorously in sync with my sister's movements, fantasizing that it wasn't my sister's fingers that entered my sister's narrow, pink hole, but my thick, long penis.

Under my gaze, my sister knelt down, her knees on the ground, supporting her body, her thighs spread, her fingers moving in and out of her little hole quickly, looking completely intoxicated.

My eyes were pounding and my heart was racing as I watched from outside the door. My penis was erect, and I pushed the door open a little more, peeking my head in halfway. Thankfully, my sister didn't notice at all.

It was a truly bizarre scene: my sister was passionately caressing her vulva inside, while I, her brother, was watching from outside while vigorously rubbing my own penis.

After about two minutes, her thighs began to tremble, clearly from kneeling for too long. I wondered why she didn't lie down on the bed; that would be much more comfortable. As if she understood me perfectly, she stood up and quickly climbed onto her bed, her fingers still inserted in her vagina.

When she lay down, her legs were spread open right in my direction—lucky me! Now I could see everything between my sister's legs clearly. Her fingers were still constantly going in and out of that lovely little hole, and under the light, her inner thighs were glistening; it seemed my sister was quite wet.

My sister's fingers twitched faster and faster, her thighs stiffened completely, spread wide, muscles taut, her free hand clenched tightly, nails digging deep into her palm—it seemed her orgasm was imminent.

Her breathing suddenly quickened, her thighs and lower abdomen contracted and spasmed violently, and she made "hoho" sounds in her throat. When Mom and I were doing it together, she behaved the same way before her orgasm.

I had never heard my sister make such sensual, suppressed sounds before. She was clearly afraid the noise would attract Mom's and my attention, so she covered her mouth with the back of her hand, but the "ee-ooh" sounds continued.

Her buttocks rose high, thrusting upwards repeatedly, and I could see drops of clear fluid dripping from her vagina.

My sister's body finally fell back onto the bed, her breathing still rapid, but her taut muscles began to relax. Her hands lay casually at her sides, looking utterly exhausted.

From my angle, I could see her nipples and her lovely labia were red, but covered with mottled, clear fluid. My sister seemed quite satisfied and happy. As she shifted her body, intending to further stimulate herself, her head turned, and her eyes glanced casually towards the door.

Suddenly, her eyes widened, startling me. I realized the door was ajar, and most of my body was exposed to the light.

I stood there dumbfounded, naked, my large, long, and hard penis erect, the glans extremely engorged and glowing red from the earlier rubbing—it must have looked terrifying.

My sister immediately shrank to the corner of the bed, her eyes wide, half shy and half frightened, her lips tightly pressed together.

Soon, her expression turned to disgust.

"Get away!" she hissed, her voice soft but filled with revulsion. "Get out of my room, you pervert! Get away!"

I didn't say a word, took a step back out of my sister's room, closed the door behind me, and turned to go back to my own room, completely forgetting about going to the kitchen to find something to eat.

Back in the bedroom, I turned off the light and collapsed onto the bed, but I couldn't fall asleep.

Every time I closed my eyes, my sister's naked body flashed through my mind, along with the image of her posing provocatively in front of the mirror. In just over two years, my sister had changed so much; she was no longer the naive girl she used to be. I'd seen her naked before, but I'd never had any negative reaction. I never imagined I'd made such a fool of myself just now.

Recalling the scene, when my sister discovered me peeking, although she seemed angry, she didn't try to cover herself. Instead
, she spread her legs wide, as if afraid I wouldn't see clearly. And although she seemed furious and told me to leave, her eyes were fixed on my enormous penis, her gaze more one of surprise than anger.

Thinking about this, I couldn't help but feel excited. It seemed I would definitely let her see my penis properly sometime in the future, and very closely at that.

The next day, everything was normal, as if nothing had happened. As usual, my sister and I had to go to school after breakfast.

Mom always got up very early to make breakfast for us, even though it delayed her from starting work.

In my memory, Mom rarely slept in if we had school the next day, even if I made her work herself to the bone the night before, she would still get up early the next day to prepare everything.

When I went downstairs to the kitchen, my sister hadn't come out yet. She usually arrived before me, but it seemed I had gotten there first today.

"Hi, good morning! You look great," Mom greeted me.

"Hi, good morning! Mom looks even more beautiful," I replied casually, reaching my hand inside Mom's robe and touching between her legs.

My fingers easily found Mom's moist, warm labia. Oh! So Mom wasn't wearing any underwear at all. My penis instantly hardened.

If my sister weren't home, I would definitely be eager to lift Mom's robe, push her to the sink, and, as usual, fuck her wet, hot, hairy cunt from behind.

"Mmm...mmm..." Mom moaned as my fingers teased her, rubbing her labia against them. She said, "Mmm...! Be careful, baby. Your sister will see. Where is she? Hasn't she come yet? She should be down here by now."

"Ignore her," I said, gently stirring my fingers against the walls of her vagina. "Maybe she's stuck in the toilet."

"How could you say that about your sister!" Mom said angrily, pushing my hand away from her vagina.
I deliberately licked my wet middle finger, and Mom smiled, her eyes fixed intently on the bulge in my shorts. She grabbed my erect penis, about to make her next move, when we heard my sister open the door.

"We'll talk about it later, baby," Mom whispered, pinching my penis hard before letting go.

My sister didn't even glance at me, going straight to her seat and sitting down. When Mom greeted her good morning, she just nodded. I hoped she would look up at me, but she ignored me completely, as if I didn't exist.

"Child, what's wrong? Are you feeling unwell?" Mom had clearly noticed my sister's unusual behavior.

My sister just shook her head and then glared at me fiercely.

Mom noticed something was off between us, but obviously assumed it was just a normal sibling squabble and ignored it, going off to prepare breakfast.

I stared blankly at Mom's ample hips swaying beneath her robe, inwardly cursing my sister. Why did she have to come at the worst possible time, just when we were about to get down to business? But then, a thought struck me: my sister's passionate performance last night, and I couldn't help but look at her differently.

Hmm, it seems my sister is a bit as lewd as Mom.

If I play the right card next, maybe I'll get some unexpected rewards, and it won't just be about seeing my sister's cute little hole.

Just looking at Mom's buttocks was already exciting enough, but now, thinking about my sister's lewd performance last night and my hopes for the future, my penis became even harder.

To hide my embarrassment, I lowered my head and pretended to eat, but my mind kept wandering.

My sister was sitting right next to me, less than a few meters away; I could touch her knees with my outstretched leg. Thinking about how naked she was last night, my feet started to twitch. I continued to wonder what it would look like under my sister's legs if I looked down at her. Would she be without underwear, her pubic hair still showing? I wondered

if I should pretend to drop my napkin and sneak a peek while bending down to pick it up. But I quickly dismissed the idea, because I never use napkins; I usually use my shorts to wipe my hands. People would think it was strange if I suddenly started using one.

I looked up at my mother; she was facing the wall. I thought this was a good opportunity.

My sister had been watching me closely, and when she saw me looking at my mother's backside again, she kicked me under the table, a little annoyed. I turned back and gave her a strange smile, continuing to eat my breakfast, but my mind was still contemplating how to get under the table and peek between her legs.

Oh, it seems a lot can happen in two years; at least your sister can change to an unimaginable degree.

Before, I only saw her as an annoying, irritating person I wanted to avoid at all costs. Now, I genuinely wanted her, I wanted to possess her. Although she was still very young, she had a beautiful, youthful body, and she was maturing rapidly. The day I could "pick" her wasn't far off!

I ate my food absentmindedly, but my mind was replaying the image of my sister's legs spread wide last night. Her labia were truly pink, looking very delicate, and the pubic hair on both sides hadn't fully grown yet, but it made her look even cuter.

I imagined what color her underwear would be if she wore it, and what kind of clothes she was wearing today.
Thinking this, I glanced up at my sister and found that she was also staring at me. Oh, the way she looked at me was exactly the same as the way I looked at her! My penis unconsciously became erect, and my thoughts somehow drifted to my sister's cute pink little hole.

We stared at each other for a while before I regained my usual disdainful expression when I looked at her. At the same time, I saw my mother's mouth move, and I realized that she was asking me a question.

"Hmm? What?" I asked.

"I'm asking you, what's wrong with you two? You both look so upset, are you worried the sky is falling? I see you're just busy putting seasonings into your porridge, but you're not eating any. And what about the milk I made? Why aren't you touching it? Kids, what's wrong with you two?"
I muttered a few words, quickly finishing the ham and egg Mom shoved into my mouth. My sister also didn't say a word, just kept her head down and ate her own portion.

Mom didn't seem to mind our indifferent attitude; she was happy as long as we ate all the breakfast she made.

After we finished eating, Mom cleared the table and prepared our things for school.

I stared at Mom's trembling buttocks, wishing I didn't have to go to school and could stay home and spend some quality time with Mom. But every time I thought of Mom's hairy vulva, my mind would simultaneously conjure up my sister's pubic hairy little hole.

Oh, damn it! I can't forget what my sister looked like last night.

Although she seemed disgusted with me, I was sure she was just masking her inner fear—the fear of having incestuous thoughts. I was even certain she was excited too, that she shared the same desires as me.

Just then, a horn blared outside, and my sister and I jumped up simultaneously. It was Billy, who lived across the street. Billy and I were good friends, the same age, but he already had his own car, and he would give us a ride to school every day.

My sister and I rushed towards the door, but got stuck in the narrow passageway.

"Get out of the way!" my sister shouted.

"No! You're blocking my way!"

We pushed and shoved each other, trying to get out before the other.

Suddenly, I did something mischievous, my hand sliding across my sister's chest.

Oh, great! My hand brushed against my sister's breast; although small, it was much firmer and more elastic than my mother's.

Just as I was reveling in this, my sister pulled back and punched my shoulder hard.

My mother came over, separated us, and then pushed us out the door. She gently patted our bottoms, telling us to stop fooling around. Mom had obviously seen our little antics; after pushing us out the door, she stood there lost in thought for a while.

It was another rather boring day. Sitting at my desk, the only thing I could think about was women's vulvas. Of course, I mainly thought about Mom's vulva; after all, it had been several days since I'd touched her, and the thought was exciting. However, my sister's pink vulva kept popping into my mind, and I couldn't shake it off.

Although I had a physical relationship with Mom, and I could enjoy her beautiful, mature body all the time, it didn't stop me from thinking about other women. After all, I was only a sixteen-year-old boy, still quite impulsive.
After school, Billy drove up and told us to get in his car.

His car was already full of other students, so after I sat down, my sister had nowhere to sit except on my lap. I didn't know if she would get in or take another car, but unexpectedly, she climbed into the car without hesitation and sat on my lap.

As she climbed on, I stole a glance at her thighs, which answered the question that had been bothering me during breakfast—I could vaguely see her pink panties. Just like at breakfast, my penis instantly became erect. When my sister sat on my lap, the head of my penis was pressed directly against her buttocks.

I had held my sister countless times before, and she had sat on my lap more than once or twice, of course, that was when I was little, but I had never felt anything. Now, I truly felt the pressure that my sister's buttocks and thighs were putting on my penis, making me want to explode.

As if to embarrass me, my sister's buttocks swayed from side to side with the bumps of the bus, making me even more uncomfortable, while she chatted with the other students on the bus as if nothing was wrong, occasionally flirting with Billy. My sister's buttocks

were moving a bit exaggeratedly, but I pretended not to care and listened to their conversation with interest.
When we crossed the street, Billy suddenly turned to avoid the red light, and everyone was caught off guard, their bodies leaning to the right. I was sitting on the far left, so I naturally grabbed the car body, while the others grabbed me. Reflexively, I wrapped my right arm around my sister's waist.

When the car was balanced, we sat up straight. My hand accidentally slipped from my sister's waist and landed between her legs, pressing against her slightly raised mound. Instantly, a soft, warm sensation went straight to the back of my hand. I casually moved my hand away and placed it on her right leg.

My sister hadn't said a word to me the whole time, nor did she react to our skin-to-skin contact, but when my hand touched her mound, her body suddenly stiffened, her abdominal muscles contracted and tensed, but she didn't move away. Only when my hand was on her right leg did her body relax.

Afterwards, we continued talking and joking with other people, but it was clear that neither of us was really interested in these trivial conversations. I was still savoring the brief contact we had just had, and I think my sister was savoring the same thing as me.

When we got home, I helped my sister out of the car, and my right hand naturally reached under her bottom and lifted her up. Of course, I had done this hundreds of times before, but never had it felt like this. I could feel the elasticity of her slightly thin buttocks and the softness of the deep crevice between them.

Oh! I couldn't hold back anymore; my penis was throbbing painfully.

I got out of the car after my sister, chatted with Billy about the basketball game that was about to start, and then said goodbye.
My sister had already gone into her room, and I ran into the house after her.

Mom wasn't home because her sports car was gone. She always worked very late, and Dad had run away with his secretary, leaving behind a bill that Mom had to pay.

I went to the kitchen, found a sandwich, and wandered around while eating it. When I got to my sister's room, I saw that her door was open. This time it was obviously left open on purpose because my sister couldn't have missed the clattering I was making in the kitchen. My sister was sitting on her bed, wearing a bikini bottom and a nightgown over it.

Oh, it's only four o'clock in the afternoon!

(II)

I leaned against the door frame and stared at her. She pretended not to see me, and after a while, she finally looked up.
"Why don't you leave me alone for a while?"

I just looked at her, focusing on chewing my sandwich.

"Why are you always sneaking around, brother? You've been spying on me!"

This time I nodded.

"Yes, I like spying on you, sister!" I said with a grin, "I often peek at you from your window and take pictures of you, but I never thought I'd be standing in front of your door... You seem to 'never' close the door."

Her lips suddenly curled up, making her breasts bulge out of her pajamas, looking even more alluring.

"This is my room, you have no right to invade my privacy."

"What privacy?" I retorted, "You leave the door open as if you're inviting the whole world in. If you really want to keep any privacy, then please close the door."

My sister's face flushed red, and she jumped out of bed.

"Okay! I'll close it right away!"

My sister rushed over and tried to slam the door shut. Her pajamas were half open, revealing her pointed, perky breasts, like two pink ice cream cones topped with two bright red cherries.

Oh, the fire in my heart has been reignited!

My sister slammed the door shut, and I quickly stuck my foot in the crack and used my shoulder to push the door open.

"Hey! Wait a minute, I'm sorry, little sister, I really didn't mean to upset you."

She hesitated for a moment, and I gently pushed her door open and went into the room.

"I wasn't spying on you, after all, your door was open," I sat down on her bed, "Besides, could I see more than last night?"

My sister immediately glared at me.

"How dare you say that, brother! Wouldn't you dare say that to anyone else?"

I got angry.

"Who says I wouldn't? You're too presumptuous, little sister!"

My sister softened and walked to my side: "Well, brother, you won't tell, right? Mom will be angry if she finds out."

I knew Mom would understand, but this was my chance.

"Okay, I won't tell, little sister," I assured her with a smile, "It's a secret between the two of us, right?"

I slowly unfolded my scheme, implying that she had no choice but to obey me. I'll tell her what I'm going to do, and I promise she'll be very happy. She'll love it.

"Besides," I added, "you saw mine, and I saw yours. We saw the same amount. After all, I'm your brother, you have to believe me."

I placed my hand on her thigh. She trembled slightly but didn't pull her hand away.

"Listen to me, little sister," I continued, "everyone does this. You're not the first girl to masturbate, understand?"

I couldn't help but laugh. I remembered the first time I saw my mother insert a toothbrush into her vagina. Of course, after I was born, my mother didn't need a toothbrush anymore.

My sister sat on the bed, head bowed, silent for a while, before taking my hand.

"I don't know why I did that, brother, but I felt very happy inside. It felt amazing."

"I know what's going on, little sister." I gently patted her leg and began to gently stroke her thigh. "It's natural."

My hand slowly slid up her thigh, feeling the warmth and smoothness of her skin. My sister's body was stiff, trembling as I touched her. Her hands weakly gripped my wrist, but she didn't try to stop me. My heart began to pound, because my hand was about to touch her panties for the first time.

It seemed I had to go further!

"Brother," my sister whispered, her voice clearly tinged with fear, "No, no, don't..."
I ignored her and continued to stroke her thighs, getting closer and closer to the edge of her panties. My sister's hands gripped my wrist, but she neither stopped me nor tried to guide me.

"Brother, I'm scared..." she finally pleaded.

I knew this was true; after all, it was her first time, and if I couldn't ease her tension, she would definitely refuse me.

"Don't be afraid, sister. I'm your brother, I won't hurt you. I'm just continuing what you did last night, don't you think it felt good?"

She still kept her head down, but her chest heaved violently, showing her excitement.

"Yes..." she murmured.

"Then, relax, relax, if you keep being so tense, your brother won't be able to do anything."
I picked her up and gently placed her on the bed. She resisted slightly, then blushed and obediently lay down, her eyes closed, her body sprawled out. My heart began to pound wildly; I knew what I had prayed for was about to happen.

"Open your legs, sister," I said, trying to speak in a gentle, calm tone, but a hint of fear still lingered in my voice.

My sister's eyes were tightly closed, her head tilted to one side, looking completely helpless, but her body was gradually relaxing, and her stiff thighs were softening.

I used a little force to open her legs. Her panties were pink and semi-transparent, and her thighs were as smooth and elastic as cream, feeling wonderful to the touch—truly befitting a young woman.

My hands slowly and carefully slid along my sister's firm thighs, feeling how smooth and soft they were. I could feel the intense throbbing of the veins inside her thighs, and her body temperature was rising rapidly.

Through the semi-transparent panties, I could vaguely see the slightly bulging cleft; it looked hairless around it, but I knew it was actually covered with fine, soft, golden-yellow hairs—perhaps in a couple of years, a lush forest would grow there.

My fingers slid inside my sister's panties, slowly tracing the edges back and forth, making her gasp for breath, her chest heaving, but she didn't stop me at all. Although her body was trembling and she looked very scared, she controlled herself very well.

My mother's experience told me that it was time to take off my sister's panties; any further teasing would only backfire.

So I withdrew my finger and gently patted my sister's mons pubis: "Lift your butt a little, sister."

Her buttocks lifted slightly, and I reached under them, carefully pulling off her thin, seemingly easily torn panties.

As the panties came off her buttocks, I saw my sister's untouched virgin genitals at such close range for the first time. The distance was incredibly close, far more stimulating than a hazy glimpse from the doorway.

The curves of my sister's genitals were very soft, with fine pubic hair covering the entire mons pubis, but the pink labia were bare on either side, making them very striking. My sister's lower abdomen was very flat and smooth, sloping downwards, curving slightly at the junction with her slender thighs in a beautiful arc, above which were two unexpectedly large, tightly joined pink labia, forming a deep, folded groove protruding above the mons pubis. The crevice looked deep, the two sides tightly joined together, completely obscuring the inside, but I knew it must be very wet and narrow.

I thought of my mother's vulva; her vagina was lined with fluffy black pubic hair, secreting fluid with the slightest stimulation, making it constantly moist. The opening was open, making it easy to insert a finger. However, my sister's labia were tightly sealed and hairless; forcing entry would be very painful. At that moment, I unexpectedly felt a thrill of rape.

The thought of my sister's cute little hole below that crevice, and the prospect of inserting my already throbbing, thick penis, filled me with uncontrollable excitement.

After I completely removed my sister's panties, she whispered, "Don't hurt me, brother! I'm afraid of pain!"

"I'll be careful, sister! I'll be gentle!"

Of course, this was just to comfort her; I didn't intend to keep my word.

What virgin doesn't experience pain the first time? Although I had had sex with my mother for several months, my sister was still a virgin. My mother couldn't possibly teach me how to avoid hurting a virgin. In fact, if my sister hadn't reminded me, I would never have imagined that a woman's first time would be painful.

Even so, I decided to be as careful as possible to avoid spoiling her mood; otherwise, things would be difficult later. I placed my burning palm on my sister's vulva, my palm against the vaginal opening, and slowly, gently stroked it. I didn't want to act rashly. Although I lacked experience, I knew that dealing with a virgin required patience; I should proceed gradually, step by step, to reach my ultimate goal.

My sister clearly responded to my touch, her body trembling slightly, emitting soft moans—not from fear, but from excitement. Her body twisted back and forth, trying to escape my advances; her shoulders swayed up and down, making her two small breasts, hidden beneath her thin nightgown, appear and disappear, making me unable to resist reaching out and ravaging them.

I felt my lower body growing harder and harder, desperately trying to break free of my underwear. But I dared not stop stroking my sister's vulva to take off my own underwear, because I worried that might cause her to stop my further actions. So, I could only endure the pain of my glans being tightly constricted by her underwear and continue to caress my sister's increasingly aroused vulva.

My entire palm was flat against her mound, my fingertips gently tracing her flat stomach, and then I gradually increased the pressure of the massage. First, I slid my palm down the curve of the mound to between her legs, my middle finger gently tapping the shallow groove, then my palm slid up over her vulva, using the back edge of my palm to firmly massage her cleft. Repeating this, I soon felt the heat emanating from my sister's area, and it became increasingly moist; I knew my efforts were making progress.

I massaged my sister's vulva even harder. Each time my palm slid over, I would squeeze my middle finger a little inside her vulva, maintaining a limited level of stimulation.

My sister was clearly enjoying it; her legs were wide open and relaxed. My other hand wasn't idle either; it was on her thigh, stroking the inside of her thigh back and forth, while preventing her from suddenly clenching her thighs.
Looking at my sister again, I saw her eyes slightly closed, her face flushed, her nostrils trembling slightly, and her small mouth half-open, emitting faint moans. She was clearly enjoying my ministrations.

I decided to take it a step further, so I gently probed with my middle finger, sliding it into my sister's vagina.

Oh, my sister's vagina is so hot and tight! I couldn't wait any longer; I had to take a stronger approach!

I could feel that my sister's vagina was already very wet; the secretions, though not plentiful, were quite lubricating, viscous, and sticky. As my finger probed further, I encountered a thin barrier.
Oh, God, it was my sister's hymen!

Because my finger touched her hymen so suddenly, my sister's body trembled reflexively, and she grabbed my hand, preventing me from going any further.

"Gently, brother!" she groaned, "It hurts."

"Okay, okay!" I comforted her.

At that moment, a completely unfamiliar sensation enveloped my entire body. I don't think I truly cared about whether my sister would get hurt, nor did I care about anything else; I only cared about one thing—possessing her.
It was a wild, instinctive, or rather, masculine impulse. My sister had completely softened, was aware of being violated, and was already wet down there. What was I waiting for? I wanted to violate her! I wanted to fuck my sister!

Instinctively, my fingers plunged deep into my sister's vagina. My sister arched her back in pain, tears streaming down her face. She gripped my hands tightly, preventing me from taking another step, and at the same time, she couldn't help but scream. The sound wasn't loud, but it was chilling. I quickly pressed my body against hers and covered her mouth with my hand. She couldn't make a sound, but she desperately tried to push me away.

I held her tightly, my fingers still inside her, but my mind was filled with memories of our childhood. Back then, my sister liked to play horseback riding with me, of course, she was always the one riding me. I never imagined that one day I would be riding on top of my sister, with my hard penis pressed between her legs, my fingers controlling her vulva.

My sister's body twisted, protesting my broken promise, painful tears streaming down her cheeks, her eyes filled with a mixture of pain and anger, but I could sense that she didn't really want to get rid of my violation, because she had already begun to respond to me.

My sister's thighs didn't close because of the pain; instead, they spread even wider. At the same time, she raised her small, thin buttocks to meet my advances, allowing my fingers to penetrate deeper into her vagina. However, she was undoubtedly angry at my sudden action, so she bit the hand I was using to cover her mouth, causing me to quickly pull my hand away in pain.
"Why are you biting me! Isn't this comfortable?"

"If you don't take your hand away, I'm going to suffocate, you idiot! And you're hurting me so much, take your finger away!"

"I swear I won't hurt you like this again, little sister," I gently comforted her, "It hurts, doesn't it?
But you actually like it, right?"

"No! Take your hand away, or I'll scream."

"Then if I leave one finger inside you, but don't let it move, would you feel better?"

"I...I don't know."

"Okay, then how does that feel?"

"It feels much better. But don't poke too hard, or it will hurt a lot."

I slowly moved my finger back and forth: "Does it feel better now?"

"Mmm...mmm, good, so comfortable, what, what is this feeling..." My sister panicked.

"Okay, if you can open your legs a little wider, I promise you'll feel even better."

My sister shyly opened her thighs wider, making her private parts more prominent. Her small, hairless vulva looked like an open mouth, swallowing my fingers. I could even feel the faint suction from deep within that little "mouth."

Oh, it's a miracle I've been able to endure this long!

"That's good, little sister," I encouraged.

At this point, I could no longer bear the throbbing pain between my legs. I felt it was time to release my penis, which had been hard from the beginning. I stood up, pulled my fingers out, and my sister immediately grabbed my hand, somewhat reluctantly.

"What are you doing, brother?"

"Nothing, just want to give you a surprise," I said, taking off my clothes.

My sister clearly realized what I was about to do: "Oh, no! Brother, you don't really want to do that, do you?"

"Oh, don't worry, I just want my little bird to fly freely. It's been holding back for so long, it's so eager to fly. Look, like this."

I suddenly pulled out my long-dormant penis. The newly released male symbol bulged out, pointing straight to the sky, radiating heat, the stubborn glans with its prominent veins, frighteningly red from friction with my underwear. My sister's eyes widened instantly, staring in disbelief, as if she had seen a venomous snake, a look of fear on her face.

"Uh... okay, okay. Brother, you're not going to use it to insert into my little hole, are you? I've read about it in books, and if I do that, I'll get pregnant."

"Of course not, sister," I shook my head. "What will I do if you get pregnant? I'll be locked up in prison for a thousand years, right?"

"I think so too." My sister relaxed.

"I don't want to spend the rest of my life in prison just to make my cute little sister happy."

After removing my heavy clothes, I bent down and placed my palms back on my sister's vulva. I loved looking at her pussy; it aroused me so easily.

When my fingers slipped into her opening, her pink labia, which had been tightly pressed together, would suddenly open, sucking in my fingers. A warm, wet sensation would then spread from my fingertips, making my heart flutter.

I pressed my body against my sister's again, and she cooperated by opening her thighs a little wider to make it easier for me to enter.

I inserted my middle finger into my sister's pussy again. This time she didn't resist, and from the feeling of my fingers entering, I knew that my sister's pussy was completely wet and slippery, without any of the resistance I felt the first time.
I knew I didn't need to waste any more time. My fingers began to move deeper, and this time there was no resistance. My fingers rhythmically went in and out of my sister's pussy, just like she had done the night before.

My sister reacted quickly; she began to writhe and moan beneath me, her hands gripping my back tightly.

With my other hand, I grasped my sister's small, adorable breasts. They were indeed still small, after all, she wasn't even thirteen yet, but they had already developed to the size of a peach, just the right size to fit in my palm. Soft, firm, and elastic, they were irresistible. I gently rubbed her breasts, enjoying the delicate texture of her skin.
"Oh...oh...like this...so good...brother...so comfortable...comfortable...brother...make sister even more comfortable..."

"Open your pajamas a little wider, I can't make you feel more comfortable through them."

My sister wriggled beneath me, fumbling for a moment before unbuttoning her pajamas.

If it were my mother and me doing this together, I wouldn't be able to resist tearing her pajamas open in less than five seconds, because my mother sometimes liked me to use a little force. But if I treated my sister the way I treated my mother, she might react completely differently, so I wanted her to do it herself.

In just a moment, my sister had completely unbuttoned her pajamas, exposing her chest, leaving her slender figure naked before me.

"Wait a minute," I said, taking off my own shirt.

"What are you doing, brother?"

"I'm going to take off my shirt and feel your breasts with my chest."

"Just your shirt, brother, don't take off your panties!"

"Okay, just your shirt."

I took off my shirt, leaving my upper body naked. My panties, though not completely off, were pulled down to my buttocks, my thick penis now unrestrained, ready to thrust in.

I held my sister in my arms; her body was burning hot, her faint virgin scent wafting towards me, constantly stimulating my senses. My hands continued to tease her vulva, distracting her, concealing my throbbing penis as it approached her entrance.

At this moment, the head of my penis was already pressed against her vulva; it seemed nothing could stop my entry.

I remembered I had promised not to insert my penis, but how could that be? Now I was already on the verge of death, forced to act. Forget about promises; I wanted to give my sister a real touch! I was going to violate my sister!

Although it's the most ordinary thing in the world, I was still stunned when my sister's soft little mouth came to me. My sister took the initiative to kiss me.

A brother and sister kissing—this is not a kiss between ordinary men and women, it's an incestuous kiss! Oh! Just thinking about it is a hundred times more exciting.

My sister seemed very passionate, without a trace of affectation, natural and beautiful. Her thin lips were very soft and moist, and her kissing technique was also clumsy, but the passion was irresistible.

My tongue quietly slipped over, gently sliding over her lips and teeth. My sister opened her mouth on her own, and my tongue explored. My sister's kiss felt completely different from my mother's. How to describe it? It had a refreshing quality, a natural, wild, slightly rough, unrefined kiss. Her tongue was soft, moist, and sticky, and when it intertwined with mine, it almost made my soul leave my body. My sister sucked my saliva hard, her tongue passionately entwining with mine, as if she wanted to suck me in completely.

I felt her lower abdomen rubbing against my groin, making me unable to suppress the urge to violate her. Her hips swayed from side to side, allowing my fingers to give her stronger stimulation. Clearly, my sister wanted more intense stimulation; when my tongue entered, her lower body began to writhe restlessly, rubbing against my groin, her hands stroking my back, seemingly encouraging me to take a more direct and daring approach.

I felt her abdominal muscles contracting repeatedly; obviously, the existing stimulation was no longer enough for her. It seemed I should take my final step.

I increased the pressure slightly, forcefully kneading and squeezing my sister's breasts, while vigorously sucking on her lips, my body rubbing against her skin, stimulating her senses. Soon, her breathing became heavier, and her movements became more frenzied. Then, my fingers no longer moved slowly in and out, but began to stir forcefully and arbitrarily, intensely stimulating her vaginal walls, causing them to secrete more fluid.

I carefully added one finger into my sister's narrow vagina, then another, and to my surprise, both went in smoothly.

My sister clearly sensed my actions. She gasped, her thighs tensed for a moment, then relaxed, letting out a pleasurable moan.

My fingers began to try and pry open her narrow opening. It was incredibly tight; the muscles at the vaginal opening contracted repeatedly, gripping my fingers tightly, making it difficult to begin my work.
Each time I pried open her vagina, she cried out in pain, but she never made me stop, cooperating by opening her thighs.

I focused my attention on a protrusion inside her vagina, gently pinching it with three fingers, wiggling it from side to side, teasing and squeezing it occasionally. My sister was clearly very sensitive to this; she arched her hips, swaying them, her lower body rubbing against my wrist, making the contact between her vulva and my palm even closer, letting out bursts of pleasurable moans.

I took a deep breath, lifted my body slightly, allowing my waiting penis to enter my palm, guiding it to the entrance of her vagina, then lowered my hips, and my penis slid into her narrow vagina through the opening created by my fingers.

(III)

My penis penetrated very deeply, quickly exceeding the length of my fingers, and I immediately felt the pressure of my sister's narrow vagina. A warm, moist sensation enveloped my glans, and the muscles around the vaginal walls were soft and tightly surrounding my penis, making me feel like I was in heaven.

I quietly pulled my penis out slightly, and thankfully, my sister didn't notice that my penis had entered the forbidden zone she was so desperately protecting. Instead, she let out a happy moan. I knew she would discover my misconduct sooner or later, but because of the obstruction of her hand, my penis hadn't fully penetrated. I wanted to enter completely before she found out, so I suddenly forcefully spread my fingers outwards, and my sister immediately gasped.

"Oh, no, you're spreading it too wide, brother, you're hurting me."

Using the passage opened by my fingers, I thrust my hips forward, and at the same time, I pulled my fingers out. My thick penis then smoothly penetrated most of the way in, the first part disappearing into my sister's untouched little hole, completely merging with my sister.

At first, my sister didn't realize what was happening and even let out a happy sigh, but she quickly understood what was going on and her body froze completely.

"Brother, no! Brother, no, pull it out!!!"

"Relax, sister, this won't hurt you, brother will be very gentle, trust me."

"No, pull it out right now!"

My sister gasped for breath, struggling desperately to break free from my violation, but I held her down firmly, not letting her move an inch. Although I didn't withdraw my penis, it was deeply buried in my sister's tight vagina. I could feel the strong contraction of her vaginal walls and the slight tremors. As my sister struggled, there was relative movement between my penis and her vaginal walls, and the close friction between the two gave me great stimulation.

"Oh, brother, please pull it out, okay? It hurts so much down there, you're really hurting me."

My sister couldn't break free from my control and could only plead softly, but I remained unmoved.

"The pain won't last long, little sister," I reassured her, but I had no idea if it was true. I'd never been with a virgin before, and besides, I wasn't really concerned about whether she was in pain.

My penis was only halfway in, and her vagina was the hottest and tightest I'd ever experienced; I didn't want to give up halfway. However, my sister was clearly saying one thing and meaning another. Although she was subconsciously resisting my intrusion, weakly pushing against my body, trying to push me away, her thighs were spread wide open, allowing me to penetrate freely, and she showed no intention of stopping.

If she really wanted to refuse, she would have tightly closed her thighs and pulled her buttocks back, making it impossible for me to insert my penis. Realizing this, I ignored her feeble resistance and focused on thrusting deeper into her tight, hot vagina.

I gently swayed my hips to make penetration easier. My sister genuinely wanted me to stop. After all, she was only twelve. No matter how much her body developed, it couldn't reach adult standards. Her narrow vagina was barely able to accommodate my large penis; it would be a lie to say it wouldn't hurt if I forced it in.

My sister pleaded desperately, her nails scratching my back until it bled, but I ignored her completely, my mind only focused on conquering her. I grabbed her buttocks to prevent her from pulling back and straightened her body so I could more easily complete my actions.

My sister cried and struggled beneath me, naked. Watching her, I felt a strange pleasure. Was I a sadist?

Just then, I felt my glans touch a thin barrier, making me stop abruptly. I knew that was my sister's hymen.

My sister clearly felt it too, stopping her crying and looking at me with fear, as if saying, "No! No!"

I hesitated for a moment, then resolutely thrust forward. My sister's body trembled, letting out a short, piercing scream, tears quickly filling her beautiful eyes.

In that instant, I realized I had truly hurt my sister.

I had actually broken my own sister's hymen! Oh, had I really done something wrong?!

But this thought only lingered in my mind for two seconds before being dispelled by the pleasure of my penis completely occupying my sister's virgin vagina.

With fear in my heart, listening to my sister's painful cries, I excitedly began to slowly thrust my penis in and out. The pleasure from the friction between my penis and her vaginal walls constantly assaulted my nerves. I became more and more excited, and my sister's cries gradually faded, replaced by moans of pleasure.

My sister was responding!

After thrusting like this for a minute, I felt a warm flow as my penis was withdrawn. I instinctively realized it was my sister's virgin blood.

Somehow, I suddenly felt that things were going very smoothly, and that what I was doing was right. I slowed my movements, gently guiding my penis in and out of my sister's young vagina.

My sister had been responding to my actions; she had stopped crying, her head tilted to one side, her eyes tightly closed, her body completely relaxed, her hands clenched into fists, her legs naturally spread, letting me take the initiative. Her face was no longer pale with pain, but flushed, her nostrils trembled slightly, and she inadvertently let out seductive moans. It seemed she was lost in the naked contact she was experiencing, completely immersed in the pleasure of carnal desire.

My penis had only just pierced my sister's hymen, not even fully penetrated yet. The shallow thrusts were already bringing her unbearable pleasure. What would happen if it went in completely?

My sister's vagina was narrow, tight, hot, and lubricated; the sensation of entering and exiting was like ascending to paradise. I didn't want to cause her any more pain, so I was extra careful as I pushed further in, making sure not to hurt her.

My efforts finally paid off; my penis was completely swallowed by my sister's tight vagina, and she showed no sign of pain. Her vagina was so tight, gripping my penis so tightly it felt like it would snap, almost making me ejaculate.

Fortunately, after several months of contact with my mother, I was no longer like a typical sixteen-year-old who would give up after a few clumsy touches. I had learned to control my orgasms. I wanted to give my sister a real orgasm, because she seemed so eager for it.

I lowered my head and took my sister's small nipple into my mouth, beginning to suckle forcefully. My sister let out a soft moan, her voice filled with pleasure. She stopped resisting me and instead wrapped her arms around me, her soft little hands stroking my back, encouraging me to give her more pleasure.

I gently bit her nipple, my tongue softly licking its tip. She seemed to enjoy it; her thighs trembled slightly, and her breathing became heavier—an instinctive reaction. I knew she had already fallen in love with her first time.

I gradually increased the force of my thrusts, and her response was incredibly enthusiastic. With each thrust, she arched her hips to meet my movements, allowing my penis to penetrate fully. Each time I entered, our lower bodies collided violently, making a "thump, thump" sound.

I reached behind her, lifting her buttocks, ensuring each thrust hit its mark perfectly. My mouth left her nipple and slid down to her neck, licking it with my tongue, making her giggle and tickle. Unable to resist, she pressed her lips against mine, and we began to suckle mouth-to-mouth. This time, my sister's passion was far greater than before; her tongue entwined with mine, greedily sucking my saliva, while her lower body thrust in and out, enduring my thrusts.

I loved making love with my mother like this, and now I loved this naked exchange with my wanton sister.

"Mmm...mmm...good...good...good, sister!" I could only mumble because of the kiss, "Fuck you, sister, brother loves fucking you, loves fucking your hot little hole!"

"Mmm...mmm! I like it...brother!" my sister moaned, "Fuck me...oh...violate me...brother...oh...oh...fuck me hard...fuck your own sister to death..."

At this moment, my mind was filled with nothing but the thought of fucking my sister; everything before me was filled with lust.

My movements became rougher, with large, forceful thrusts. Each withdrawal of my penis brought out a glimpse of my sister's tender, pink flesh, and each insertion completely buried my entire penis inside her narrow, wet opening.

My sister writhed happily beneath me, yielding and yielding.

Our bodies were intertwined desperately, sweat and saliva covering our entire bodies and the bed. Our genitals were completely soaked, covered in my sister's flowing fluids.

My sister's passion was astonishing, as if she were insatiable, constantly demanding more from me. I, in turn, thrust my penis passionately, wanting to bring us both to the peak of pleasure. At this moment, we were both completely immersed in the passion of incest.

Finally, I could no longer restrain myself. My penis swelled painfully, and with a forceful thrust, my penis suddenly opened, and a gush of hot fluid shot out, my semen erupting like molten lava from a volcano, quickly filling my sister's wanton vagina.

I ejaculated and ejaculated for a long time, until I completely filled my sister's vagina, and then I stopped.

We were both exhausted, holding each other tightly, letting the lingering passion flow through our bodies.
By then, the evening sun had already set. Suddenly, I heard a faint sound behind me.
I opened my eyes and looked up, only to realize that I had also forgotten to close the door. My mother was standing there by the door, watching us with a lewd smile.

Oh, what a lewd and embarrassing scene!

My sister and I were both naked, our limbs intertwined, I was on top of my sister, my penis still inside her vagina, milky white semen flowing from her vaginal opening, and our mother was standing by watching with a strange smile on her face. My

mother stood there watching us for a while, hesitant, unsure of what to do. Finally, she put a finger to her lips, signaling me not to make a sound, and then left, closing the door behind her.

My sister had obviously heard the door close. She opened her eyes, looked at me with a puzzled expression, and then looked towards the door. "Brother, what's wrong?"

I shook my head and gave her a perfunctory reply. "Oh, nothing, nothing."

I pulled out my limp penis, grabbed a towel, and wiped our bodies.

After our recent encounter, my sister's vulva looked red and swollen, her labia appearing even larger. She frowned whenever the towel touched it.

"Did you like it, sister?"

"Yes, of course I liked it, brother. If I had known earlier that it was so wonderful, I would have played with you every day."

I smiled at my sister, lovingly stroking her pink vulva.

"Do you want to do it again, sister?"

"Of course!" she said happily, wrapping her arms around my neck. "Brother, I won't refuse you whenever you want."

"That's called love, sex, sister!" I said, kissing her.

“Tell me I want sex!”

My sister giggled, a little shy. “I want sex,” she whispered.

“You’ll get your wish, my little darling!” I said. “You have no idea how charming you are, even though you’re still a child.”

“Really?” She laughed happily and said, “How do you know so much? Brother, have you… uh… done this before?”

“Don’t worry about it, sister,” I dodged the question. “I think we should get dressed, or Mom will be back.”

“I think we should be able to hear her come in.” “I do

n’t think so. I wouldn’t be surprised if Mom’s car was parked outside right now.”

A look of fear flashed across my sister’s face. She quickly got up and looked out through the curtains.

“Oh God! Mom’s back, brother!”

“I know, hurry up and get dressed.”

My sister quickly put on her underwear. Suddenly she let out a scream, thankfully not very loud. I turned around and saw that my sister had noticed the bloodstains on her thigh. I wiped them clean for her and then opened the door so she could take a shower in the bathroom.

A moment later, I heard the sound of water coming from the bathroom, so I went to the kitchen. My mother was preparing dinner in the kitchen, and when she saw me come in, she gave me a suggestive smile.

I came up behind her, pressing my genitals against her buttocks.

"Are you happy?" she asked with a smile.

"Of course, but I can still have another round with you before dinner, Mom," I said, kissing my mother's neck.

"What? You want more? You just finished with your sister, and judging from the way you two were just now, I thought you wouldn't be able to get up! How did she taste, baby?"

"Not bad, but not as good as her mother!" Flattery never fails, and I complimented her, my hands kneading her full breasts through her shirt.

"You're such a sweet talker!" Mom laughed and scolded me.

I turned my mother around and kissed her passionately.

My mother rotated her hips, her lower body rubbing against my genitals. When she realized my penis was already hard, she looked very surprised.

"God bless you, my child! I've never seen you recover so quickly before! If this is because of having sex with your sister, I really hope you can do it every day."

Mom seemed genuinely happy.

At this moment, my sister finished her shower, and my mother and I separated, but unlike before when we were sneaking around, we gave each other a knowing smile.

My mother continued to play the role of a mother, showing no trace of having witnessed my sister and I having an affair.

My sister looked completely different from usual, much more mature, radiant, and with a spring-like smile. She was far more beautiful than her usual innocent self, every movement and smile exuding a seductive charm that made me want to hold her and do it again immediately.

During dinner, my sister frequently gave me flirtatious glances. Taking advantage of my mother's absence, she leaned closer and whispered in my ear, "My bedroom door won't be locked tonight, brother."

She gave me an extremely lewd and seductive smile, then continued eating her dinner, completely ignoring my reaction.

After dinner, we watched TV in the living room. My mother and I sat on the sofa, while my sister, as usual, sat on the carpet in front of us. My eyes involuntarily fell on my sister's parted legs, imagining her tight panties taut over her lustful vulva, which I had just penetrated, reminding me of the tightness of my penis filling her tender little hole.

Thinking this, my penis hardened again. My mother noticed and reached over, pressing down on the bulge in my shorts and rubbing it vigorously.

"Her ass is cute, isn't it, baby?" my mother whispered in my ear.

"Yeah! And a cute little hole too, Mom." I whispered back to my mother, then grabbed her left breast and roughly squeezed it.

"Will you go to her room tonight?" my mother asked, looking at me with a half-smile.

"Aren't you jealous, Mom?" I said, my hand sliding under my mother's skirt and touching her warm vulva.

"No, if you can satisfy your lewd mother's demands anytime, I don't mind if you give your lewd sister some time too. I'd like to join you two!"

"What?" I exclaimed in surprise, my voice rising involuntarily. "You mean..."

"Don't be so loud!" my mother said, sounding a little embarrassed. "You're not the only one in this family who knows your sister has a small, cute ass, you understand?"

I was stunned. I knew my mother was an extremely lewd woman; I'd been having sex with her almost every day for the past few months, but I never imagined she was also interested in women, or rather, girls. Images of my mother, sister, and me in bed flashed through my mind. Oh, what an exciting moment! I was thrilled. In fact, this possibility was entirely real, especially after my illicit relationship with my sister; persuading her shouldn't be too difficult.

"Okay, Mom, leave this to me. I'll go find her tonight, make her happy, maybe I can convince her to join our threesome!"

"I have a better idea, darling," my mother said, rubbing my penis. "Why don't you come to my room first? I'll let you ejaculate once, so when you go after your sister, you'll last longer and make her happier."

"Yes, Mom." I bit my mother's earlobe. "I'll come as soon as my sister gets into bed."

"I'll wait for you, son." Mom said, licking my ear and giving me a sexy, seductive wink before getting up to wash the dishes in the kitchen.

It's still two or three hours before my sister goes to bed, but she seems restless. First, she took a shower, then walked back and forth in front of me in her see-through nightgown, fully displaying the secrets of her still-developing body.

Every time she moved, the see-through nightgown clung tightly to her two small, firm breasts, revealing a pink cleavage below.

Oh, so my slutty sister isn't wearing underwear! Whenever Mom isn't looking, she'll spread her legs for me to see.

Thinking about how I'm going to fuck my sister's tight, hot hole tonight, my penis can no longer stay calm. Besides, I'm going to fight both Mom and sister at the same time, which makes me even more excited.

Finally, around ten o'clock, my younger sister went to her room to sleep. Before leaving, she gave me a wink, reminding me she'd be waiting for me all night. I winked back and watched her wiggle her hips and disappear down the hallway.
A little while later, Mom finished washing up...

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Family Chronicle: A Passionate Sister and Her Sister Having Sex, Discovered by Their Mother

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