My sister-in-law who is in high school

When I was dating my wife, her younger sister was still a child, only in the second year of junior high school. Because she had always
been attached to my wife, she was often caught in the middle, making me afraid to make any unwanted advances, lest she see
my wife and me being intimate and gossip. Time flies, and several years passed. I finally won my
wife's heart and could be with her openly. We lived in our new house, happily enjoying our
sweet life as a couple. By this time, my wife's younger sister had grown into a young woman. As before, their sisterly
relationship remained strong, and she would often come to visit her older sister. By this time, I had also passed
the honeymoon phase with my wife, and in my spare time, I would occasionally admire my sister-in-law's increasingly mature body.
Soon after, my wife became pregnant. We, who both loved children, agreed to reduce intimacy. Although I promised my wife,
my desire was hard to quell, so I turned my attention to my lovely sister-in-law. Actually, I could
sense that my wife's younger sister still liked me somewhat. She would subtly show it, for example,
by stealing glances at me or gently nuzzling me. When we walked together, she would unconsciously hook
her arm around mine. But before, I thought she was just my sister-in-law and didn't think much of it. Now
it's different. We haven't done "that" for months, and I don't care anymore. I only have one thought in my mind:
to sleep with her and possess her.
That day, my wife went to the hospital for a prenatal checkup, and I was doing housework at home when the doorbell rang. I opened the door
and saw it was my wife's younger sister. She had brought over a few CDs that my wife liked to listen to, because my wife
had said she wanted to use them for prenatal education for the future baby. I took the CDs and casually placed them
next to the TV, asking her to sit down and make some water for her. I went to the kitchen only to find we were out of coffee. My sister-in-law really likes Bird's
Nest coffee, so I always make it for her when she comes over. But unfortunately, it was sold out today. I
told her to watch some DVDs while I went downstairs to buy some.
When I got downstairs, I remembered there were two adult films and one softcore porn film on the DVD player.
My heart sank. What if she saw them? Would she have a bad impression of me, her brother-in-law? No, I had to get back quickly
. But it was too late. When I got home and opened the door, my sister-in-law had already turned on the TV and put in a Japanese adult
film to watch. I was stunned. Luckily, the film had a plot; the couple was flirting. I
quickly grabbed the remote and told her to change the disc, but she flatly refused, shamelessly saying I wasn't a child anymore and that
watching this could teach me something. I was speechless… Helpless, I had no choice but to let her be. Actually, my sister-in-law's looks are average
, and she's not very tall, less than 1.6 meters. She's petite and charming, but her breasts are underdeveloped, a
fact I'd already noticed through previous, unintentional physical contact. Since things had come to this, I had no choice but to bite the bullet
and sit down to watch with her.
On the screen, the adulterous couple had already entered the act. In the hotel room, they were passionately
kissing. Watching their skillful movements, I was truly impressed by the quality of Japanese AV. Next,
the male protagonist began kissing the woman's ears and neck with his tongue. The woman moaned with pleasure under the man's teasing
. I glanced at my sister-in-law and noticed her face was already red. She was probably aroused too
. I wondered if I should make my move on her today?
Driven by desire, I quietly moved closer to her, holding back for now, afraid of disturbing her and affecting my later
plans. Soon, the man and woman on the screen had both undressed and were deeply in love. The male protagonist used his nimble
tongue to continuously bring the woman to the brink of sexual pleasure. A pair of large breasts were firmly grasped by the man, her nipples
hardening under his licking. Her lower abdomen kept rising upwards. The male protagonist, understanding the situation, immediately shifted the focus
to attacking her genitals. The sister-in-law was starting to feel the strain; her legs clamped tighter and tighter, twisting and
turning. I quietly pulled her into my arms, preparing to begin my sex education.
Suddenly, my phone rang. It turned out my wife had met a female classmate; they were on good terms and had arranged
to have dinner together, not coming home for dinner. Relieved, I hung up and began my assault.
The sister-in-law had been struggling with desire for a while, and although the phone call had somewhat affected her emotions, a young
girl with a heart full of spring fever couldn't resist the challenge of an adult film and her handsome brother-in-law. Before long, she was limp in my arms
. I lowered my head to kiss her, but my sister-in-law, experiencing her first taste of pleasure, instinctively clenched
her teeth, refusing me. I reached my hand to her breasts, finding her nipple through her cotton bra, and gently pinched it. She let out a soft moan, and I seized
the opportunity to slip my tongue inside, finding my first target.
The scent of a virgin constantly stimulated my lustful brother-in-law. While savoring my sister-in-law's sweet nectar, I
reached behind her and unhooked her bra, completely captivating her B-cup breasts. I gently
rubbed my sister-in-law's nipples with my fingers, stopping my assault on her mouth and instead kissing her earlobe. Soon, my sister-in-law
completely lost consciousness, entirely under my control. Seeing that the time was right, I
pushed up her top, exposing her lovely breasts to the air. Without giving her a moment to regain her senses, I immediately lowered my head and
gently sucked on her nipple. In early summer, the weather was quite pleasant. My sister-in-law's body, under my caresses,
was covered in a fine layer of sweat, and her breasts had a faint salty smell. Breathing in the alluring scent of her virginity, savoring
the taste of her tender breasts, I was already beyond aroused. My penis, beneath my trousers, began to stand erect, ready to be unleashed. I pulled down my pants
, freeing my penis, and guided my sister-in-law's small hand to grasp it. My
inexperienced sister-in-law had no idea that a man's thing could be so large. Holding this seven-inch behemoth, she was nervous and at a
loss. I gently asked her, "Is it big?" She blushed and replied, "Brother-in-law, this...this thing is so big
, mine is so small. No, I don't want to, I'm scared." I didn't give her a chance to refuse. I
lifted her skirt, pulled down her white cotton panties, and kissed her lovely private parts. A virgin's genitals are truly different
; her vulva, almost like a white tiger's, had only a few pubic hairs around it. Her full, round vulva tightly protected the girl's private parts
. There was no odor, only a captivating body fragrance. I licked her genitals relentlessly
, causing her desire to erupt completely. Soft moans continued unabated, and pleas for mercy came one after another.
At this moment, how could I let this lamb to the slaughter go...
Seeing that her overflowing lower body was already ready for my invasion, I teasingly asked her, "Brother-in-law is coming
, okay?" My sister-in-law's heart was also very complicated, but the modesty of a virgin made her keep her mouth shut and
dare not speak. I gently pressed my penis against her vaginal opening, gently pressed down, and rubbed it a few times with the lustful fluid.
After that, I found her clitoris and gently bumped and rubbed it with the head of my penis. My sister-in-law, who had never experienced
the pleasure of love, had never been stimulated like this before. She quickly succumbed, and a surge of lustful fluid from her lower body triggered her first orgasm
. I could hardly hold back either. Forget about teasing her, I guided my penis to the entrance of her overflowing secret place,
aimed, and then forcefully sank in.
Wow, a virgin's body is indeed different. My thick penis was enveloped in her tight vaginal muscles; even the glans
could barely penetrate further. I dared not make any rash moves, so I bent down and took her nipple into my mouth again,
sucking on her lovely breast while gently rotating my lower body to prepare for further penetration
. My sister-in-law's genitals, after adapting to the intruder, secreted some more lubrication.
Seeing that things were going well, I held her waist and began to gently thrust again. When my penis had advanced about a third of the way,
it encountered an obstacle. I knew this was proof that my sister-in-law was a virgin. Better a short pain than a long one.
After feeling that her vagina was completely wet, I withdrew my penis to the entrance of her vagina and took a deep breath. The brief
pause left my sister-in-law confused. She opened her beautiful eyes and looked at me. I suddenly exerted force, gripping her slender waist
and thrusting into her hard. A tremendous pleasure followed, but the pain of losing her virginity caught her off guard. She
opened her mouth to cry out, but I wouldn't let her scream. I kissed her small mouth,
turning her voice into a muffled groan before she could even utter a sound...
I closed my eyes, enjoying the feeling of my petite sister-in-law's lovely, tender vagina tightly gripping my large penis.
The constant contractions inside her vagina felt like a small mouth desperately sucking on my brother. This feeling was something that mature women and
prostitutes could never provide. I thanked God for giving me such a pure and lovely person. I vowed in my heart
to treat this second virgin in my life well from now on. Under my constant caresses, the pain in my sister-in-law's lower body
had subsided, replaced by waves of tingling and itching. She looked at me shyly, clamped her legs around my waist,
and began to wriggle her lower body again. To make things easier for my future intimate acts with her, I deliberately remained still, beginning my
first "training" of this lovely girl. I softly asked my sister-in-law, "What's wrong?" She replied, "Brother-in-law, something feels strange down there. It
hurt a lot just now, but it doesn't hurt as much now, though it feels a bit numb and itchy. I don't know why." I understood
, but deliberately teased her, "Then brother-in-law won't move, okay? Is that alright?"
My sister-in-law became anxious and said, "You should move a little bit. You're so big down there, it's making
me feel so full. I'm completely filled up inside by you." I remained unhurried and asked, "Where? What part is full?" My sister-in-law replied, "
Down there, it's down there! Brother-in-law is naughty, I'm not going to do it anymore." To avoid an awkward silence, I started with nine shallow thrusts followed by two deep ones
. This method was perfect for a girl who had just lost her virginity. Soon, my sister-in-law was
panting heavily, begging for mercy. "Mmm, oh, brother-in-law, I love you, hmm... mmm... oh... I'll be
with you forever.
" "Oh, I can't take it anymore." Hearing my sister-in-law's dazed moans, I was also very excited, but to completely possess
her body and soul, I hardened my heart and controlled myself, pulling my penis to the entrance and stopping, beginning a new round of teasing. My
sister-in-law, having tasted the sweetness, wasn't about to let me go. Her body twisted and turned, her buttocks constantly lifting, hoping to feel
the full, satisfying sensation after penetration. But I wouldn't let her have her way now. It's easy to possess a woman once, but to possess
her for a lifetime requires a long period of training. Today was my first lesson for her. I teased her
, "What do you want to do?"
My sister-in-law blushed and replied, "You, you come in. I'm not used to it."
I asked, "What's coming in? Where is it going?"
My sister-in-law was no match for this lecherous man; her girlish pride and reserve were about to be destroyed. But
she still held firm and didn't give a wrong answer. Seeing this, I placed my hands on her breasts and vigorously rubbed them, then thrust my penis in hard to the bottom
. The force and depth of my penetration even made me think I was going too far. I could clearly feel
the pleasure of my glans scraping against her cervix. My sister-in-law was completely defeated by my sudden attack. She hugged
my neck and whispered in my ear, "Brother-in-law, you're my husband now. I'll love you forever."
Hearing such sweet words, I couldn't bear to pause any longer. While thrusting vigorously, I asked her, "What are you doing, brother-in-law?"
My sister-in-law replied, "Brother-in-law is making love with me." I said, "No, it's fucking."
She hummed in agreement, knowing it was a fucking session. I was having sex with my brother-in-law, and he was using his big cock to fuck
his sister-in-law's pussy. Seeing how obedient she was, I focused on fucking her hard, quickly bringing her to her second
orgasm. My big cock felt the tightness of her vagina inside her, and a surge of pride welled up inside me
. I silently cheered myself on, determined to make her feel incredibly good today, to make her devoted to me, to make
her my sex slave! Suppressing the tingling sensation in my lower back and controlling the urge to ejaculate
, I slowed my pace slightly, leaned down, and kissed my sister-in-law's red lips. She was almost at her climax
; two consecutive orgasms had given her a true taste of sexual pleasure. All she could do now
was passively submit to my demands, letting out joyful moans…
I raised my hand and lightly slapped her cheek. She was bewildered but
dared not retaliate, asking, "Brother-in-law, why did you hit me? What did I do wrong?" I shouted at her, "Who is your
man?" She replied, "Of course, it's my dear brother-in-law!" After a couple of hard thrusts, I slapped her again
, this time harder than before. She became much more obedient, quickly begging for mercy, saying, "Brother-in-law, no,
husband, wife, I was bad, please don't hit me anymore, okay?"
I snorted, pinched her nipple hard, and then said sternly, "From now on, I am your master
, you are my sex slave, understand?" My sister-in-law was stunned for a moment, then immediately reacted, wrapping her arms around my neck tenderly...
The girl said, "I understand, Master. I am your sex slave. Punish me, fuck me to death." I laughed and said
, "That's more like it. I wouldn't have hit you if you had been this obedient earlier.
Good girl, call me a couple of nice words." My sister-in-law immediately called me, "Husband, fuck me." I was so itchy,
I couldn't help but pinch her breasts again and asked her if she had forgotten so quickly. She quickly changed her words and said, "Master, this little
slut's pussy is so itchy, Master, use your big cock to help me." I couldn't take it anymore. I was overjoyed. Seeing that
the first training was so successful, I no longer controlled my feelings and thrust hard more than a hundred times,
ejaculating in a torrent during our simultaneous orgasm. I unleashed a torrent of semen, accumulated over three months,
into my sister-in-law's tight, hot vagina, leaving not a drop...
After about five minutes, my penis had gone limp. Just as I was about to get up, my sister-in-law
clamped her legs around my waist, preventing me from moving. While I was still in shock, she whispered, "Master, this slave feels so good
. I want you to be one with me like this forever, never to be separated." Hearing this, I couldn't resist touching her again
, and soon my penis regained its strength, rising again. Lubricated by the semen and vaginal fluids from the previous encounter, my renewed erection began a new round of conquest. At the same time, a new round of sexual 　　training
for my lovely sister-in-law was about to begin...

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My sister-in-law who is in high school

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