Doing something with his girlfriend's sister next to her.

My acquaintance with my girlfriend began when she asked me for help. In the days that followed, I found her to be hardworking, kind, and quite pretty—the kind of woman who loved life. We fell in love.

One day, I went to her place and suddenly found a girl, taller and with fair skin than my girlfriend, sitting quietly on her bed. She seemed a little flustered by my arrival. I casually called out my girlfriend's name, "Ah Ling."

"My sister isn't here; she went to the market to buy groceries," she said, standing up.

"Oh, well…please sit down!" I said, casually leaning back on the bed while looking her over.

"You—you're her sister?" I asked incredulously, the delicate fragrance emanating from her leaving me speechless.

"Yes, I'm here for a few days." Seeing me staring at her, her face flushed instantly. She asked me awkwardly, "You're my sister's boyfriend, right?"

"Yeah! We're good friends! Nothing much, just here for a bit." I couldn't help but move closer to her.

She had thick eyebrows and big eyes, her medium-length, layered hair cascading over her shoulders, exuding a captivating fragrance. Her breasts were high and firm, subtly bouncing as if trying to break free from the constraints of her black lace bra.

"Why are you staring at me?" I said, lowering my head. Her lips were full and red, and a lively, nimble tongue rolled incessantly between her white teeth, making me want to restrain its slippery movement with my own mouth.

"..."

"Do you know how to play games? I'll teach you."

I figured she'd like it even if she hadn't played before, so I turned on the computer and beckoned her over.

"Okay...okay...okay!"

She skipped and jumped to sit down next to me, like a little swallow.

I stood behind her, explaining things to her aimlessly, but my eyes were looking down from her shoulders. Her low-cut, thin pink top could no longer completely conceal her nipples, which were now almost completely exposed from above—a clear cleavage, hazy areolas, only the tiny, bean-sized nipples seemed a little out of place with her high breasts. I instinctively lowered my head further, and her delicate fragrance made me unable to resist placing my hand in her smooth hand. "Let me teach you!"

"Hehe...this is so much fun!"

she exclaimed happily, glancing up at me every now and then, giving me a joyful smile. Her clear, bright eyes smiled so sweetly and innocently.

"How old are you?" I asked softly in her ear, placing my other hand on her shoulder.

I felt her body tremble, her face and ears turning completely red.

"I'm 18..." she said shyly, removing my hand from her shoulder and turning back to give me a sweet smile...

"Your little sister is here. How are you going to rest tonight...?" I put my arm around Ling's waist, my eyes fixed on the little sister sitting on the edge of the bed.

The little sister looked up at me, saw me looking at her, and lowered her head shyly.

"My sister is still young, she can sleep with us." My girlfriend pushed me away forcefully and went to tidy up the clutter on the bed.

"A 1.5-meter bed and you're worried about her being cramped? Couples sleep on a 1-meter bed and still need to squeeze in half of it."

"Ha...ha..." I clapped my hands and laughed. Ling knew I had said something wrong and quickly covered my mouth with one hand to stop me from laughing, while hitting me repeatedly with the other.

"Okay...okay, I'll do whatever you say," I was so excited I almost fainted. Unable to contain my joy, I kissed Ling on the ear.

"Don't do that, my sister's here,"

I glanced at my sister, who was covering her mouth with one hand and giggling. I glared at her and said, "What are you laughing at? You'll get what's coming to you tonight," I muttered to myself...

Ling lay beside me, and my younger sister lay beside Ling. Time passed by, but I tossed and turned, unable to fall asleep. The ticking of the clock on the table grew clearer and clearer. My girlfriend,

lying in my arms, was clearly fast asleep. I pulled my hand out and let my girlfriend lie under my arm. Naturally, my fingers touched my younger sister's soft hair. I casually stroked it a few times, and she stirred slightly, readjusting her sleeping position. This slight movement allowed my hand to touch her cheek.

"Is she still awake?"... I began to feel my heart racing, a clear, thumping sound mixed with excitement and nervousness that made my hands tremble slightly.

I boldly stroked her cheek, feeling her rapid breathing and her full lips trembling slightly. She swallowed softly, her hot lips already starting to crack. I knew she wasn't asleep yet...

In the dim light of the lamp, I saw her eyes closed, her long eyelashes fluttering gently, tiny beads of sweat glistening on her small nose, her sensual lips opening and closing under my touch, a blush rising on her smooth, hot face.

Through the thin, white spaghetti-strap nightgown, I could vaguely see her two mysterious little nipples, and the clear cleavage was like a deep, secluded valley between two mountain peaks…

Her flat stomach rose and fell irregularly, and I could imagine her heart rate accelerating and her blood boiling.

She was already burned by an unnamed fire; her fragrant hair was scattered on the bed, and her curled-up legs were tightly crossed, as if resisting some force, or perhaps reveling in the nourishment of rain after a long drought.

Her tall figure, the short and ill-fitting pajamas, and her constant writhing on the bed—her buttocks were almost completely exposed—led to a downward glimpse along her inner thighs, revealing black lace panties. The materials used in these panties had clearly been carefully calculated by unscrupulous merchants; the poor panties were barely fulfilling their intended function. Her full, voluptuous inner thighs were alluring and seductive, seemingly untouchable yet so close.

The view was like a continuous mountain range, with peaks and valleys rising and falling, or a vibrant and ever-changing Vienna sculpture.

I didn't want her to pretend to be asleep to accept my caresses, so I pinched her soft little face hard. I heard her let out a soft moan, "Mmm..."

She opened her almond-shaped eyes and glared at me, then twisted my arm hard with her hand. Although it hurt, I was excited because that twist told me she wasn't asleep and accepted my caresses...
I know my girlfriend well. She's a workaholic, but she also pays attention to her health. She goes to bed before 10 pm every night and can get into bed very quickly. Because of my sister's visit and my presence today, she seemed very happy and drank a lot of alcohol. Now she's fast asleep, and I know she's sleeping soundly, which makes me even bolder.

I shifted my sleeping position and unconsciously brought my hand back to my nose to smell it. The intoxicating scent of her youthful body lingered on my fingers, intoxicating and exciting me, making my whole body hot. A strange discomfort arose in my groin—an extreme emptiness and unbearable urge, as if a powerful force was about to erupt. This forced me to tightly clamp my legs together and curl up…

But my mind was already filled with vivid imagination, and it was this imagination that prompted me to reach out again and gently place my hand on her soft breasts. She trembled, grabbing my hand tightly, her grip shaking. Her hand didn't stop me from touching her; rather, she seemed helpless, afraid I would continue, yet unwilling to push me away, even not wanting me to leave, sliding her hand up and down with my touch…

I heard her breathing quicken and become more rapid, accompanied by soft, delicate moans and the sounds of her body writhing on the bed. My hands gently caressed her soft breasts, and her body responded to my movements, moving up and down. From her shoulders to her cleavage, to her nipples, to her armpits, to her lower abdomen, to her waist, every part of her skin was supple and full, incredibly dynamic and elastic. She kept changing positions, and even when lying on her back, her breasts remained high and firm. I gently pinched her nipple, about the size of a mung bean, and she suddenly convulsed as if electrocuted, her fingernails almost digging into my hand. She closed her eyes tightly…
“Mmm… ah… mmm… ah… ouch… ya…” In a short while, her nipple turned into a small red date…

My body and hers were almost entirely pressed against my girlfriend’s body. Afraid that I would make her breathless and wake her up, I simply sat up and tiptoed to the other side of the bed, crouching down around my younger sister’s waist. She was a little afraid that her older sister would wake up and see everything between her and me, so she pushed me away, signaling me to go back to sleep. I immediately kissed her. At first, she tried to turn her head to the other side, but my tongue was already deeply embedded in her mouth, making it impossible for her to turn away. She only lightly punched my back, then simply hugged my waist and gently kissed me with the tip of her tongue. She licked my strong, long tongue. My feet were on the ground, my upper body pressed against her chest. Bare-chested, I rubbed my chest against her breasts. Only a thin, soft nightgown separated our skin. I greedily sucked on her fragrant tongue, her red lips, her earlobes, and her neck. She also actively stroked my hair and shoulders. She was excited, but also afraid that her moans would wake her sister. She bit my arm.

My hands roamed over her waist, her super-short nightgown already lifted to her chest, her firm breasts obscuring the fabric, revealing only most of them. I used my tongue to forcefully pull upwards from the nightgown, finally sucking on her red nipple, gently biting as I did so. Her arms wrapped tightly around my neck, her legs pressed together…

Although I was excited, I was experienced, quite skilled in this area, especially in illicit affairs. I would sometimes lightly lick her nipples, sometimes suckle her areolas, and sometimes squeeze her breasts forcefully with my chin and nose. My hands had unconsciously… I slipped my finger down to her lower abdomen, and used it to slide along the elastic leather band of her panties from her buttocks to her waist and then to her lower abdomen. She bit me hard, her arms tightly wrapped around my neck, trying her best not to make a sound, but I could still hear her moans of pleasure mixed with pain in her panting. I moved my hand to her legs and began to caress her snow-white thighs, which kept changing positions to match my caresses...

Sliding upwards along her thighs, I felt the warm, soft, and moist inside. I slowly moved my hand upwards until my thumb touched her panties, and her whole body trembled. She tried to pry my slippery hand away with one of her hands, but she was too weak and just weakly scratched and hit the back of my hand.

Ignoring her resistance and the tightness of her legs, I continued my seemingly forceful yet gentle caresses. Knowing resistance was futile, she wrapped her arms around my neck again, as if only then could she find her balance. I forcefully pried open her tightly closed legs and gently touched her narrow panties. The damp panties clung tightly to her vulva. I used my index finger to lift the crotch of her panties and then released them; the lace panties immediately clung back to their original shape. I continued caressing her panties, my tongue already subtly moving to her lower abdomen, then slowly licking towards her genitals…

She could no longer reach my neck, so she grabbed the pillow beside her and held on tightly. She couldn't bite my arm anymore, so she bit her lower lip instead…

My lips moved to the inside of her thigh, and my tongue touched her black panties. At the same time, I smelled a scent, not floral, but more beautiful and alluring than any flower. I started to lose my mind, becoming somewhat frantic…

I bit her panties and pulled them to one side, revealing her delicate labia. Covered in wetness, her white labia glistened in the dim light. Sparse, curly, soft pubic hair drooped at the edge of the cleft due to the moisture. Although her labia were pressed tightly together, they still couldn't contain the glistening vaginal fluid slowly flowing out from below… I tried to use the tip of my tongue to trace the crevice from the dripping area upwards.
"Mmm...ah..." she cried out. She didn't want her sister to wake up and disturb this precious moment. Knowing she couldn't control herself, she quickly brought the pillow to her mouth, biting down hard on the pillowcase, burying her face inside, trying to hold her breath. The large bed swayed violently from her movements, and her legs had unknowingly spread wide.

I ignored her cries, pressing my nose against the crevice and swaying it from side to side, while my tongue gently teased below. One hand pulled down her panties, while the other kneaded her breasts...

"...Mmm...mmm...moans occasionally escaped from under the pillowcase...ah..."

Hearing her moans, I felt a surge of desire. The rush of blood to my lower abdomen made my penis throb slightly. My tight underwear couldn't contain it; it peeked out from the side, standing erect between my legs...I wanted to put it back in, but then I noticed glistening fluid trickling from the head of my egg-sized penis...

This wasn't like me. Normally, I wouldn't feel this way. It was the intense, alluring scent of her genitals, and the incredibly tender, half-open, half-closed, budding vulva... The impact...

I had no time to dwell on the changes in my penis. With my fingers, which were still holding my pants, I gently parted her labia. I saw her bright red labia minora shyly hiding inside, and the flowing vaginal fluid seemed to originate from them. Above them stood a tender little clitoris, like a delicate flower stamen. I put it in my mouth and sucked on it. She used her legs to clamp my head, signaling me not to be too rough. I licked it gently, and her legs slowly and boldly opened. With soft moans, she began to rhythmically move up and down in sync with my kisses...

My tongue seemed to have a special ability bestowed by heaven, capable of alternating between soft and hard, ever-changing in countless ways.

Following the flow of water, I tried to find the cave, but all I saw was water, no opening. I tentatively pushed my tongue into the water, and she suddenly contracted her hips, grabbed my hair, and began stroking my head. I slowly pushed in again, little by little. I felt my wide tongue being squeezed very narrow, and it hurt a little. She reached out and cupped my cheeks, pulling them upwards. I knew she was indicating that she needed a more reassuring action. Looking at her moist vulva, I reluctantly raised my head...

At this moment, my penis felt like it was about to burst, the entire glans was translucent. This was probably my most satisfying part. The shape of a man's genitals can be divided into three categories based on their dimensions: spindle-shaped, cone-shaped, and hammer-shaped.

The spindle-shaped one has a pointed head, a thin base, and a thick middle. Its advantage

is that it's easy to penetrate without harming the vaginal opening. The cone-shaped one has a pointed head, a thick base, and a moderately sized body. Its advantage is that it's easy to penetrate, but its disadvantage is that it's more likely to harm

the vaginal opening. Mine is hammer-shaped, with a large head and a thin base. This type is very difficult to penetrate, especially for virgins. Once penetrated, it provides an absolute feeling of fullness inside the vagina, and the movements can produce an unparalleled, blissful pleasure. Moreover, it never harms the vaginal opening. A woman can enjoy sexual pleasure without interrupting her life, and can permanently maintain a virgin-like opening. It's difficult for a husband to detect an affair with this type of person over a long period. I know my younger sister is a virgin, and I'm the first hurdle she faces. Fortunately, I'm not an apprentice; I have in-depth knowledge of sex and love.

I lifted my future sister-in-law's legs with both hands and placed them on my shoulders, then sat down on the edge of the bed, just enough to keep my already erect penis level with her vulva. Proud of my performance, I pulled her hand over so she could touch my penis. She obediently reached out, and when she touched my genitals, she was startled. She opened her closed eyes, slightly raised her head to look at the "monster" in her hand, then looked at me with worried eyes.

"How come it's so big? Can this go in?" I knew what she was worried about, so I gently patted her cheek, signaling her to close her eyes.

I leaned down and whispered in her ear:

"It's okay, I won't hurt you..."

"...I'm scared...don't go in...I don't want you to go in..."

"Okay...okay...okay, I won't go in, you're so beautiful, I love you so much...you're so pretty..." I didn't dare to say it loudly, and gently whispered in her ear, my voice trembling and excited.

I squeezed my large glans into her tightly closed labia majora, sliding up and down, the small slit was stretched open and I could see the clitoris, but it seemed much larger than before.

I held my penis with one hand and rubbed it up and down and side to side, while the other hand was still stroking her lower abdomen and breasts. She closed her eyes again, hugged the pillow with both hands, bit the corner of the pillow with her lips, and swayed her head from side to side.

I occasionally let the glans collide and touch her clitoris, and she made different sounds at the same time.

"...Hmm...Ah..."

Slowly, I moved my large glans to the spot where the water was flowing, and with the help of the flowing vaginal fluid, I shook my penis. Soon, the glans was covered with shiny, slippery secretions. I thought the time was right, so I tried to push hard against the spot where the water was flowing, but I didn't go in. She cried out and pulled her buttocks back more.

"Does it hurt?" I asked in her ear. "A little... a little..." she replied breathlessly. "Just a little, don't be afraid, I won't hurt you too much,"...

She nodded and gave me a shy smile. Now my target was the gushing point. I kept thrusting to get her to match my rhythm, and sure enough, she seemed to relax a lot and kept thrusting with me. I knew she was experiencing a kind of pleasure she had never felt before from the thrusting motion. We were in perfect sync...

Watching her flow more and more, I suddenly thrust my hips forward sharply...

"...Ouch...ah...ah...ah..."

Her continuous screams and desperate struggles terrified me. My girlfriend, Ling, was lying beside me. If she woke up and saw us like this, I really didn't know how to handle it. I reached out and covered her lips, but there were still "...mmm...mmm..." sounds coming out...

She pushed hard against my crotch with both hands, trying to escape the tearing pain. I looked down; my huge glans had already entered her small opening, now stuck in the groove between the glans and shaft, a bit stuck, and I was also in a slight pain myself...

Her labia majora had been squeezed to one side, piled up very high, and the small slit had been torn open, revealing... Her bright red clitoris and labia minora had traces of blood on my penis. I felt a pang of heartache for her, but I really didn't want our little achievement to be ruined like this. Every girl's first time is like this; it will get better soon, I comforted myself, protecting her from being separated by her movements...

I held her shoulders with both hands to prevent her from having much room to retreat, but I didn't dare to go any further. I lowered my head and whispered in her ear, "Keep it down...keep it down...do you want your sister to wake up?"
My words reminded her, and she endured the pain without making a sound, but tears were already streaming from the corners of her eyes. She said angrily, "...you said it didn't hurt..."

"At...at the beginning...it did hurt a little..." I was a little nervous and excited.

"As long as you don't move... it won't hurt so much... really... believe me..." I said, pulling out one hand to wipe her eyes.

"I don't believe you anymore... I don't believe you anymore... you said you wouldn't go in... and then you went in... you're lying..."

Her movements gradually lessened, and I slowly released her shoulders.

"Just like this... I won't move... and you shouldn't move either, okay..." I tried my best to persuade her, staring into her eyes.

She looked at me without saying a word.

Messy hair, dry lips, big, watery eyes, rosy cheeks, rapid breathing, voluptuous figure, fair skin... everything about her intoxicated me.

"Okay..." I lowered my head even further and whispered in her ear.

"..." She seemed to want to say something, but didn't. She just nodded at me, giving me a smile with her eyes half-closed...

I was so happy and excited. I moistened her dry lips with my mouth, sucked on her eyes, and kissed her cheeks wildly.

"Does it still hurt now..." I whispered. "..." She smiled and shook her head.

I knew that my penis was larger at the head than at the base. Going in again would only make her feel a little uncomfortable inside, but it wouldn't hurt too much. However, if I gave up and pulled out, it would only hurt her again. I gently wiggled my hips to see her expression. I saw the corners of her mouth slightly turn up, and one of her eyes narrowed slightly.

I knew she was trying hard not to let me know how much pain she was in, that she was enduring it. I touched her hair and gave her a knowing smile. She reached out and twisted my face, then wrapped her arms tightly around my neck and buried her head in my chest.

My attention was entirely on my penis. I subconsciously pulled out slightly, then pushed it in a little more. She seemed to have become very brave, actively cooperating with my thrusts. This went on for almost twenty times. Her voice was no longer a cry of pain, but a soft "...hum...ah...ah...hum..."

Looking at my penis, I realized that it was already more than halfway in. I felt that it was so warm inside her, as if something was gripping my penis and constantly wriggling, giving me a strange pleasure. I passionately hugged her waist and thrust my hips down hard, inserting my more than ten-centimeter-long penis all the way in. She bit my shoulder, "...ah..."

She then moved her hands to my waist and hugged me tightly, not letting me move.

I whispered,

"Does it still hurt..."

"It hurts a little..." "It's okay..." "I can bear it, just be gentle..."

"You're holding my waist, I can't even move a little... Let go of me when it doesn't hurt anymore, okay?"

She buried her head in my chest and nodded.

I didn't move...

but she stroked my back, head, and buttocks with her hands, and I felt the warmth and movement below her...

After a while, she moved her hand to my abdomen, pushed upwards with her hand, and whispered, "Move a little... try... see..."

"...Okay..."

I lifted my buttocks up a little, then sank down again, and asked, "...How is it..." "Does it hurt..."

"...Oh... it seems... it doesn't hurt anymore... really... it doesn't hurt anymore..."

She said to me with a smile, a little surprised and puzzled.

"...Why...why did it hurt just now...but now that you're all inside...I don't feel any pain anymore...?"

I was stumped and didn't know how to answer her. "...Oh...this...this...that's how it was supposed to be arranged, right..."

"In a little while, not only will it not hurt...you'll feel really comfortable!..." "

...Who arranged this..."

"...God..." I made up a story. "...You're lying to me..." She pinched my buttocks. "...Fine...you dare pinch me...you'll regret it..." "Then I'll show you..."

I raised my hips, and my penis slid out, leaving only the glans inside. Then, with a sudden thrust, it went all the way in again.

"...Ah...I'm starting to feel better...Ouch...It's getting better...It doesn't hurt anymore..."

She hummed softly, pushing and pulling my lower back with her hands.

"Oh...it feels so good...Brother, you're so good...Mmm..."

"...God...you're so good...Mmm..."

I heard her beautiful moans, and I felt a sense of accomplishment, a sense of conquest. I thrust even harder and harder, and several times, because the up-and-down movements were too large, my entire penis slipped out. But due to inertia, the lubrication of her vaginal fluids, and the hardness of my penis, with our rhythmic and tacit cooperation, it wasn't as difficult as the first time I entered; instead, I easily slid in.

Her petite vulva was slightly swollen and red, while my penis, like a compressed substance that had been soaked, had become abnormally large, its entire shaft bulging with blue veins, swollen to the point of being painful. Her vaginal fluid diluted the traces of blood. At some point, one of her hands was pulling her panties to one side, so that my penis could enter smoothly and without obstruction.

I pulled my penis out and squeezed it against her small slit.

"...Don't pull it out...don't...I want it..."

"You have to use force...you have to use force...okay...no...okay..."

"...Hurry...in...hurry..."

I ignored her, and with my hand, I used my penis, which was as large as a man's, to pound up and down her abdomen and the inside of her thighs.

She panicked, grabbed my penis, and pulled it towards her vaginal opening. Taking advantage of her distraction, I thrust hard, my penis fully inside her. My crotch slammed against her vulva, making a "smack" sound, and her whole body slid towards the headboard.

She didn't dare to scream too loudly, only moaning softly. "...Will...

I...get...baby...with you like this...? Will I get pregnant...?" she asked, looking at me fearfully. "...Then...do you...want...to have a baby...?" I continued thrusting, laughing as I countered with a question. "...I'm afraid...I'm scared..."
She winked at me. "...If you want to...I'll let you have...ha..." "If you don't want to have a baby...I won't let...you have...what about it..."

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

she pursed her lips, looking at me, her hands constantly stroking my hair. Moans escaped her nose from time to time: "...Ah...Hmm..."

"...I won't let you have it today...but I'll let you have it next time...okay..."

"Hmm." "Then you have to...use force...it's so itchy down there...use force...it feels so good..." "I want you...to keep thrusting into me...keep thrusting, every day...oh...good...so good...harder...oh...I'm going to die...it feels so good...how can you...be so...powerful...make me feel so...good...oh...I don't want anything else...I only want you...I want you...to be me...to be my...husband...oh..."

The sister-in-law's vaginal fluids increased, soaking her panties and also wetting my waistband which was pulled to the side. Due to the force and the amount of fluid, each thrust made a "whoosh...gurgle...whoosh" sound.

Her vagina was so big, the intense friction made my lower body feel sore, numb, and itchy, a feeling of helplessness. The up-and-down movements of my body felt like I wasn't the one exerting force anymore. Tiny beads of sweat appeared on her forehead, while my entire body was covered in sweat from the vigorous exercise.

After a few thrusts, I suddenly felt her vagina exerting pressure on me, as if she was constantly contracting her vagina, or as if she was constantly sucking on my penis, sending a tingling, electric shock through my entire body.

"...Ah...ah..." I cried out. As if an inexhaustible force was about to burst forth, I increased the amplitude and speed of my thrusts wildly.

"...Ouch...ouch...ah..." she cried out repeatedly. Suddenly, she wrapped her arms around my neck. She tilted her head back, biting her lower lip and trembling violently. She lifted her legs and placed them on my back, her entire body almost clinging to me.

"...Ouch...ouch..." she screamed, "Honey...I can't take it anymore...I'm going to die...I love you so much...I can't...I can't...I can't...I'm going...I'm going...ouch..."

My mind went blank; all I could feel was the overwhelming torrent sweeping us away. I held her tightly as we drifted, wave after wave...

My acquaintance with my girlfriend began when she asked me for help. In the days that followed, I found her hardworking, kind, and quite pretty—the kind of woman who loved life. We fell in love.

Once, when I arrived at her place, I suddenly found a girl, taller and with fair skin than my girlfriend, sitting quietly on her bed. She seemed a little flustered by my arrival. I casually called out my girlfriend's name, "Ah Ling."

"My sister isn't here; she went to the market to buy groceries," she said, standing up.

"Oh, hey… sit down!" I said, casually leaning back on the bed while looking her over.

"You—you're her sister?" I asked, not believing her, the delicate fragrance emanating from her already leaving me speechless.

"Yes, I'm here for a few days." Seeing me staring at her, her face flushed red, and she asked, flustered, "You're my sister's boyfriend, right?"

"Yeah! We're good friends! Nothing much, just coming over for a bit." I couldn't help but move closer to her.

She had thick eyebrows and large eyes, her medium-length, layered hair cascading over her shoulders and exuding a captivating fragrance. Her breasts were high and firm, bouncing subtly, as if trying to break free from the constraints of her black lace bra.

"Why are you always staring at me?" she said, lowering her head. Her lips were full and red, and a lively, nimble tongue rolled incessantly between her white teeth, making one want to restrain its slippery movement with their own mouth.

"..."

"Do you know how to play games? I'll teach you."

I figured she'd enjoy it even if she hadn't, so I turned on the computer and beckoned her over.

"Okay...okay...okay!"

She skipped and danced as she sat down beside me, like a little swallow.

I stood behind her, explaining aimlessly, my eyes drifting down from her shoulders. Her low-cut, sheer pink top could barely contain her playful breasts; from above, they were almost completely exposed—the clear cleavage, the hazy areolas, only the tiny, bean-sized nipples seemed slightly out of place against her high breasts. I instinctively lowered my head further, the gentle scent of her body drawing me to place my hand in her smooth skin. "Let me teach you!"

"Hehe...hehe...this is so much fun!"

she exclaimed happily, glancing up at me every now and then with a joyful smile, her clear, bright eyes sparkling with sweet innocence.

"How old are you?" I whispered in her ear. I placed my other hand on her shoulder.

I felt her body tremble, her face turning completely red from head to toe.

"I'm 18..." She shyly removed my hand from her shoulder, turning back to give me a sweet smile...

"Your sister's here, how are you going to rest tonight...?" I put my arm around Ling's waist, my eyes fixed on the little sister sitting on the edge of the bed.

The little sister looked up at me, and seeing me staring at her, lowered her head shyly.

"My sister's still young, she can sleep with us." My girlfriend pushed me away forcefully and went to tidy up the things on the bed.

"A 1.5-meter bed and you're worried it'll be too cramped? Couples sleeping on a 1-meter bed still need extra space on one side!"

"Ha...ha..." I clapped my hands and laughed. Ling realized she'd said something wrong and quickly covered my mouth with one hand to stop me from laughing, while her other hand kept hitting me.

"Okay...okay, I'll do whatever you say," I said, almost fainting with excitement. Unable to contain my joy, I kissed Ling on the ear.

"Don't do that, my sister's here,"

I glanced at my sister; she was covering her mouth with one hand, chuckling to herself. I gave her a wink and muttered to myself, "What are you laughing at? You'll get what's coming to you tonight."

Ling lay beside me, and my younger sister lay beside Ling. Time ticked by, but I tossed and turned, unable to sleep. The ticking of the clock on the table grew clearer. My girlfriend, lying in

my arms, was clearly fast asleep. I pulled my hand out and let my girlfriend lie under my arm. My fingers naturally brushed against my younger sister's soft hair, and I casually stroked it a few times. She stirred slightly, readjusting her sleeping position. This slight movement allowed my hand to touch her cheek.

"Is she still awake?"... I began to feel my heart racing, a clear, thumping sound mixed with excitement and nervousness that made my hands tremble slightly.

I boldly stroked her cheek, feeling her rapid breathing and her full lips trembling slightly. She swallowed softly, her hot lips already starting to crack. I knew she wasn't asleep yet...

In the dim light of the lamp, I saw her eyes closed, her long eyelashes fluttering gently, tiny beads of sweat glistening on her small nose, her sensual lips opening and closing under my touch, a blush rising on her smooth, hot face.

Through the thin, white spaghetti-strap nightgown, I could vaguely see her two mysterious little nipples, and the clear cleavage was like a deep, secluded valley between two mountain peaks…

Her flat stomach rose and fell irregularly, and I could imagine her heart rate accelerating and her blood boiling.

She was already burned by an unnamed fire; her fragrant hair was scattered on the bed, and her curled-up legs were tightly crossed, as if resisting some force, or perhaps reveling in the nourishment of rain after a long drought.

Her tall figure, the short and ill-fitting pajamas, and her constant writhing on the bed—her buttocks were almost completely exposed—led to a downward glimpse along her inner thighs, revealing black lace panties. The materials used in these panties had clearly been carefully calculated by unscrupulous merchants; the poor panties were barely fulfilling their intended function. Her full, voluptuous inner thighs were alluring and seductive, seemingly untouchable yet so close.

The view was like a continuous mountain range, with peaks and valleys rising and falling, or a vibrant and ever-changing Vienna sculpture.

I didn't want her to pretend to be asleep to accept my caresses, so I pinched her soft little face hard. I heard her let out a soft moan, "Mmm..."

She opened her almond-shaped eyes and glared at me, then twisted my arm hard with her hand. Although it hurt, I was excited because that twist told me she wasn't asleep and accepted my caresses...
I know my girlfriend well. She's a workaholic, but she also pays attention to her health. She goes to bed before 10 pm every night and can get into bed very quickly. Because of my sister's visit and my presence today, she seemed very happy and drank a lot of alcohol. Now she's fast asleep, and I know she's sleeping soundly, which makes me even bolder.

I shifted my sleeping position and unconsciously brought my hand back to my nose to smell it. The intoxicating scent of youth lingered on my fingers, intoxicating and exciting me, making my whole body hot. A strange discomfort arose in my groin—an extreme emptiness and unbearable urge, as if a powerful force was about to erupt. This forced me to tightly clamp my legs together and curl up…

But my mind was already filled with vivid imagination, and it was this imagination that prompted me to reach out again and gently place my hand on her soft breasts. She trembled, grabbing my hand tightly, her grip shaking. Her hand didn't stop me from touching her; rather, she seemed helpless, afraid I would continue to caress her, yet unwilling to push me away. She didn't even want me to leave, her body sliding up and down with my hand...

I heard her breathing quicken and become rapid, with soft, delicate moans and the sounds of her body writhing on the bed. My hand gently caressed her soft breasts, and her body responded in rhythm with my movements, from her shoulders to her cleavage, to her nipples, to her armpits, to her lower abdomen, to her waist—everywhere I touched, her skin was supple and full, incredibly dynamic and elastic. She kept changing positions, and even when lying on her back, her breasts remained high and firm. I gently pinched her nipple, about the size of a mung bean, and she suddenly convulsed as if electrocuted, her fingernails almost digging into my hand. She closed her eyes tightly…
“Mmm… ah… mmm… ah… ouch… ya…” In a short while, her nipple turned into a small red date…

My body and hers were almost entirely pressed against my girlfriend’s body. Afraid that I would make her breathless and wake her up, I simply sat up and tiptoed to the other side of the bed, crouching down around my younger sister’s waist. She was a little afraid that her older sister would wake up and see everything between her and me, so she pushed me away, signaling me to go back to sleep. I immediately kissed her. At first, she tried to turn her head to the other side, but my tongue was already deeply embedded in her mouth, making it impossible for her to turn away. She only lightly punched my back, then simply hugged my waist and gently kissed me with the tip of her tongue. She licked my strong, long tongue. My feet were on the ground, my upper body pressed against her chest. Bare-chested, I rubbed my chest against her breasts. Only a thin, soft nightgown separated our skin. I greedily sucked on her fragrant tongue, her red lips, her earlobes, and her neck. She also actively stroked my hair and shoulders. She was excited, but also afraid that her moans would wake her sister. She bit my arm.

My hands roamed over her waist, her super-short nightgown already lifted to her chest, her firm breasts obscuring the fabric, revealing only most of them. I used my tongue to forcefully pull upwards from the nightgown, finally sucking on her red nipple, gently biting as I did so. Her arms wrapped tightly around my neck, her legs pressed together…

Although I was excited, I was experienced, quite skilled in this area, especially in illicit affairs. I would sometimes lightly lick her nipples, sometimes suckle her areolas, and sometimes squeeze her breasts forcefully with my chin and nose. My hands had unconsciously… I slipped my finger down to her lower abdomen, and used it to slide along the elastic leather band of her panties from her buttocks to her waist and then to her lower abdomen. She bit me hard, her arms tightly wrapped around my neck, trying her best not to make a sound, but I could still hear her moans of pleasure mixed with pain in her panting. I moved my hand to her legs and began to caress her snow-white thighs, which kept changing positions to match my caresses...

Sliding upwards along her thighs, I felt the warm, soft, and moist inside. I slowly moved my hand upwards until my thumb touched her panties, and her whole body trembled. She tried to pry my slippery hand away with one of her hands, but she was too weak and just weakly scratched and hit the back of my hand.

Ignoring her resistance and the tightness of her legs, I continued my seemingly forceful yet gentle caresses. Knowing resistance was futile, she wrapped her arms around my neck again, as if only then could she find her balance. I forcefully pried open her tightly closed legs and gently touched her narrow panties. The damp panties clung tightly to her vulva. I used my index finger to lift the crotch of her panties and then released them; the lace panties immediately clung back to their original shape. I continued caressing her panties, my tongue already subtly moving to her lower abdomen, then slowly licking towards her genitals…

She could no longer reach my neck, so she grabbed the pillow beside her and held on tightly. She couldn't bite my arm anymore, so she bit her lower lip instead…

My lips moved to the inside of her thigh, and my tongue touched her black panties. At the same time, I smelled a scent—not floral, but more beautiful and alluring than any flower. I started to lose my mind, becoming somewhat frantic…

I bit her panties and pulled them to one side, revealing her delicate labia. Covered in wetness, her white labia glistened in the dim light. Sparse, curly, soft pubic hair drooped at the edge of the cleft due to the moisture. Although the labia were pressed tightly together, they couldn't contain the glistening vaginal fluid slowly flowing out from below… I tried to use the tip of my tongue to flick upwards along the cleft from the source of the fluid.
"Mmm...ah..." she cried out. Not wanting her sister to wake up and disturb this precious moment, she knew she couldn't control herself. She quickly brought the pillow to her mouth, biting down hard on the pillowcase, burying her face in it, trying to hold her breath. The large bed swayed violently from her movements, and her legs had unknowingly spread wide.

I ignored her cries, pressing my nose against the small gap and swaying it from side to side, while my tongue gently teased below. One hand pulled down her panties, while the other kneaded her breasts...

"...Mmm...mmm...moans occasionally escaped from under the pillowcase...ah..."

Hearing her moans, I felt a surge of desire. The rush of blood to my lower abdomen made my penis throb slightly. My tight underwear couldn't contain it; it peeked out from the side, standing erect between my legs...I wanted to put it back in, but then I noticed glistening fluid trickling from the head of my egg-sized penis...

This wasn't like me. Normally, I wouldn't feel this way. It was the intense, alluring scent of her genitals, and the incredibly tender, half-open, half-closed, budding vulva... The impact...

I had no time to dwell on the changes in my penis. With my fingers, which were still holding my pants, I gently parted her labia. I saw her bright red labia minora shyly hiding inside, and the flowing vaginal fluid seemed to originate from them. Above them stood a tender little clitoris, like a delicate flower stamen. I put it in my mouth and sucked on it. She used her legs to clamp my head, signaling me not to be too rough. I licked it gently, and her legs slowly and boldly opened. With soft moans, she began to rhythmically move up and down in sync with my kisses...

My tongue seemed to have a special ability bestowed by heaven, capable of alternating between soft and hard, ever-changing in countless ways.

Following the flow of water, I tried to find the cave, but all I saw was water, no opening. I tentatively pushed my tongue into the water, and she suddenly contracted her hips, grabbed my hair, and began stroking my head. I slowly pushed in again, little by little. I felt my wide tongue being squeezed very narrow, and it hurt a little. She reached out and cupped my cheeks, pulling them upwards. I knew she was indicating that she needed a more reassuring action. Looking at her moist vulva, I reluctantly raised my head...

At this moment, my penis felt like it was about to burst, the entire glans was translucent. This was probably my most satisfying part. The shape of a man's genitals can be divided into three categories based on their dimensions: spindle-shaped, cone-shaped, and hammer-shaped.

The spindle-shaped one has a pointed head, a thin base, and a thick middle. Its advantage

is that it's easy to penetrate without harming the vaginal opening. The cone-shaped one has a pointed head, a thick base, and a moderately sized body. Its advantage is that it's easy to penetrate, but its disadvantage is that it's more likely to harm

the vaginal opening. Mine is hammer-shaped, with a large head and a thin base. This type is very difficult to penetrate, especially for virgins. Once penetrated, it provides an absolute feeling of fullness inside the vagina, and the movements can produce an unparalleled, blissful pleasure. Moreover, it never harms the vaginal opening. A woman can enjoy sexual pleasure without interrupting her life, and can permanently maintain a virgin-like opening. It's difficult for a husband to detect an affair with this type of person over a long period. I know my younger sister is a virgin, and I'm the first hurdle she faces. Fortunately, I'm not an apprentice; I have in-depth knowledge of sex and love.

I lifted my future sister-in-law's legs with both hands and placed them on my shoulders, then sat down on the edge of the bed, just enough to keep my already erect penis level with her vulva. Proud of my performance, I pulled her hand over so she could touch my penis. She obediently reached out, and when she touched my genitals, she was startled. She opened her closed eyes, slightly raised her head to look at the "monster" in her hand, then looked at me with a worried expression.

"How come it's so big? Can this go in?" I knew what she was worried about, so I gently patted her cheek, signaling her to close her eyes.

I lowered my head and whispered in her ear,

"It's okay, I won't hurt you..."

"...I'm scared...don't go in...I don't want you to go in..."

"Okay...okay...okay, I won't go in, you're so beautiful, I love you so much...you're so pretty..." I didn't dare to speak loudly, I whispered in her ear, my voice trembling and excited.

I squeezed my large glans into her tightly closed labia majora, sliding it up and down, the small slit was stretched open and I could see the clitoris, but it seemed much larger than before.

I held my penis with one hand and rubbed it up and down and side to side, while the other hand was still stroking her lower abdomen and breasts. She closed her eyes again, hugged the pillow with both hands, bit the corner of the pillow with her lips, and swayed her head from side to side.

I occasionally let the head of my penis collide and touch her clitoris, and she made different sounds at the same time.

"...Hmm...Ah..."

Slowly, I moved the head of my penis to the spot where the vaginal fluid was flowing, and with the help of the flowing vaginal fluid, I shook my penis. Soon, the head of her vagina was covered with shiny, slippery secretions. I thought the time was right, so I tentatively pushed hard into the spot where the vagina was flowing. I didn't go in, but she cried out and pulled her buttocks back more.

"Does it hurt?" I asked in her ear. "A little... a little..." she replied breathlessly. "Just a little, don't be afraid, I won't hurt you too much,"...

She nodded and gave me a shy smile. Now my target was the gushing point. I kept thrusting to get her to match my rhythm, and sure enough, she seemed to relax a lot and kept thrusting with me. I knew she was experiencing a kind of pleasure she had never felt before from the thrusting motion. We were in perfect sync...

Watching her flow more and more, I suddenly thrust my hips forward sharply...

"...Ouch...ah...ah...ah..."

Her continuous screams and desperate struggles terrified me. My girlfriend, Ling, was lying beside me. If she woke up and saw us like this, I really didn't know how to handle it. I reached out and covered her lips, but there were still "...mmm...mmm..." sounds coming out...

She pushed hard against my crotch with both hands, trying to escape the tearing pain. I looked down; my huge glans had already entered her small opening, now stuck in the groove between the glans and shaft, a bit stuck, and I was also in a slight pain myself...

Her labia majora had been squeezed to one side, piled up very high, and the small slit had been torn open, revealing... Her bright red clitoris and labia minora had traces of blood on my penis. I felt a pang of heartache for her, but I really didn't want our little achievement to be ruined like this. Every girl's first time is like this; it will get better soon, I comforted myself, protecting her from being separated by her movements...

I held her shoulders with both hands to prevent her from having much room to retreat, but I didn't dare to go any further. I lowered my head and whispered in her ear, "Keep it down...keep it down...do you want your sister to wake up?"
My words reminded her, and she endured the pain without making a sound, but tears were already streaming from the corners of her eyes. She said angrily, "...you said it didn't hurt..."

"At...at the beginning...it did hurt a little..." I was a little nervous and excited.

"As long as you don't move... it won't hurt so much... really... trust me..." I said, pulling out a hand to wipe her eyes.

"I don't believe you anymore... I don't believe you anymore... you said you couldn't go in... and then you went in... you're lying..."

Her movements gradually lessened, and I slowly released her shoulders.

"Just like this... I won't move... and you shouldn't move either, okay..." I tried to persuade her, staring into her eyes.

She looked at me, without saying a word.

Messy hair, dry lips, big, watery eyes, rosy cheeks, rapid breathing, voluptuous figure, fair skin... everything about her intoxicated me.

"Okay..." I lowered my head again, whispering in her ear.

"..." She seemed to want to say something, but didn't, only nodding at me and giving me a smile with her eyes half-closed...

I was so happy and excited. I moistened her dry lips with my mouth, sucked on her eyes, and kissed her cheeks wildly.

"Does it still hurt..." I whispered. She smiled and shook her head.

I knew that my penis was larger at the head than the base, and going in further would only make her feel a little uncomfortable inside, not too painful. But if I gave up and pulled out, it would only hurt her again. I gently wiggled my hips to see her expression. I saw the corners of her mouth slightly turn up, and one of her eyes narrowed.

I understood that she was trying hard not to let me know how much pain she was in, and she was enduring it. I touched her hair and gave her a knowing smile. She reached out and twisted my face, then wrapped her arms tightly around my neck and buried her head in my chest.

My attention was entirely on my penis. I subconsciously pulled out a little, then pushed it in a little more. She seemed to have become very brave, actively cooperating with my thrusts. This went on for almost twenty times. Her sounds were no longer cries of pain, but soft: "...hum...ah...ah...hum..."

Looking at my penis, I realized that it was already more than halfway in. I felt that it was so warm inside her, like something was gripping my penis and constantly wriggling, giving me a strange pleasure. I passionately hugged her waist and thrust my hips down hard, inserting my entire ten-centimeter-long penis all the way in. She bit my shoulder, "...ah..."

She then moved her hands to my waist and hugged me tightly, not letting me move.

I whispered,

"Does it still hurt..."

"It hurts a little..." "It's okay..." "I can bear it, just be gentle..."

"You're holding my waist, I can't even move a little... Let go of me when it doesn't hurt anymore, okay?"

She buried her head in my chest and nodded.

I didn't move...

but she stroked my back, head, and buttocks with her hands, and I felt the warmth and movement below her...

After a while, she moved her hand to my abdomen, pushed upwards with her hand, and whispered, "Move a little... try... see..."

"...Okay..."

I lifted my buttocks up a little, then sank down again, and asked, "...How is it..." "Does it hurt..."

"...Oh... it seems... it doesn't hurt anymore... really... it doesn't hurt anymore..."

She said to me with a smile, a little surprised and puzzled.

"...Why...why did it hurt just now...but now that you're all inside...I don't feel any pain anymore...?"

I was stumped and didn't know how to answer her. "...Oh...this...this...that's how it was supposed to be arranged, right..."

"In a little while, not only will it not hurt...you'll feel really comfortable!..." "

...Who arranged this..."

"...God..." I made up a story. "...You're lying to me..." She pinched my buttocks. "...Fine...you dare pinch me...you'll regret it..." "Then I'll show you..."

I raised my hips, and my penis slid out, leaving only the glans inside. Then, with a sudden thrust, it went all the way in again.

"...Ah...I'm starting to feel better...Ouch...It feels better...It doesn't hurt anymore..."

She hummed softly, pushing and pulling my waist with her hands.

"Oh...It feels so good...Brother, you...you're so good...Mmm..."

"...God...you're so good...Mmm..."

I heard her beautiful moans, and I felt a sense of accomplishment, a sense of conquest. I thrust even more forcefully, and several times, because the up-and-down movements were too large, my entire penis slipped out. But due to inertia, the lubrication of her vaginal fluid, and the hardness of my penis, with our rhythmic and tacit cooperation, it wasn't as difficult as the first time I entered; instead, it went in easily.

Her petite vulva was slightly swollen and red, while my penis, like a compressed substance that had been soaked, had become abnormally large, its entire shaft bulging with blue veins, swollen to the point of being painful. Her vaginal fluid diluted the traces of blood. At some point, one of her hands was pulling her panties to one side, so that my penis could enter smoothly and without obstruction.

I pulled my penis out and squeezed it against her small slit.

"...Don't pull it out...don't...I want it..."

"You have to use force...you have to use force...okay...no...okay..."

"...Hurry...in...hurry..."

I ignored her, and with my hand, I used my penis, which was as large as a man's, to pound up and down her abdomen and the inside of her thighs.

She panicked, grabbed my penis, and pulled it towards her vaginal opening. Taking advantage of her distraction, I thrust hard, my penis fully inside her. My crotch slammed against her vulva, making a "smack" sound, and her whole body slid towards the headboard.

She didn't dare to scream too loudly, only moaning softly. "...Will...

I...get...baby...with you like this...? Will I get pregnant...?" she asked, looking at me fearfully. "...Then...do you...want...to have a baby...?" I continued thrusting, laughing as I countered with a question. "...I'm afraid...I'm scared..."
She winked at me. "...If you want to...I'll let you have...ha..." "If you don't want to have a baby...I won't let...you have...what about it..."

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

she pursed her lips, looking at me, her hands constantly stroking my hair. Moans escaped her nose from time to time: "...Ah...Hmm..."

"...I won't let you have it today...but I'll let you have it next time...okay..."

"Hmm." "Then you have to...use force...it's so itchy down there...use force...it feels so good..." "I want you...to keep thrusting into me...keep thrusting, every day...oh...good...so good...harder...oh...I'm going to die...it feels so good...how can you...be so...powerful...make me feel so...good...oh...I don't want anything else...I only want you...I want you...to be me...to be my...husband...oh..."

The sister-in-law's vaginal fluids increased, soaking her panties and also wetting my waistband which was pulled to the side. Due to the force and the amount of fluid, each thrust made a "whoosh...gurgle...whoosh" sound.

Her vagina was so big, the intense friction made my lower body feel sore, numb, and itchy, a feeling of helplessness. The up-and-down movements of my body felt like I wasn't the one exerting force anymore. Tiny beads of sweat appeared on her forehead, while my entire body was covered in sweat from the vigorous exercise.

After a few thrusts, I suddenly felt her vagina exerting pressure on me, as if she was constantly contracting her vagina, or as if she was constantly sucking on my penis, sending a tingling, electric shock through my entire body.

"...Ah...ah..." I cried out. As if an inexhaustible force was about to burst forth, I increased the amplitude and speed of my thrusts wildly.

"...Ouch...ouch...ah..." she cried out repeatedly. Suddenly, she wrapped her arms around my neck. She tilted her head back, biting her lower lip and trembling violently. She lifted her legs and placed them on my back, her entire body almost pressed against me.

"...Ouch...ouch..." she screamed, "Husband...I can't take it anymore...I'm going to die...I love you so much...I...can't...can't...I'm going...I'm going...ouch..."

My mind went blank; all I could feel was the overwhelming torrent sweeping us away. I held her tightly as we drifted, wave after wave...

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Doing something with his girlfriend's sister next to her.

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