Watching his brother-in-law have sex with his sister

I sat on the sofa, watching my brother-in-law vigorously fondling his sister, who sat next to me. Her legs were spread wide, and my brother-in-law inserted two fingers into her vagina, thrusting them in and out rapidly.

Her expression was complex.

The siblings stared at each other for a while, then my brother-in-law, still inserting his fingers, asked her, "Is it good, sis?"

She replied, "It's so good!"

Then she looked away at her brother's penis and said, "Your penis is so hard, come and fuck your sister."

After she finished speaking, my brother-in-law pulled his fingers out of her vagina.

She rolled over and knelt on the sofa, and my brother-in-law thrust his penis into her vagina from behind, pumping vigorously…

I sat quietly beside her.

The brother and sister had been having sex for over half an hour when my brother-in-law turned to me and asked, "Brother-in-law, are you going to have sex with me after I'm done?"

I said, "No!

" My brother-in-law continued, "If you're not going to have sex with me, then I'll have sex with you a little longer."

I said, "Go ahead."

Just then, I heard his sister say, "I think I should cum soon. I feel a bit dry down there, and I

can't take it anymore!" I'm over fifty years old this year, and my wife is two years younger than me. Although she takes good care of herself, she's still an old woman after all, and her

vagina doesn't have much lubrication left. My brother-in-law's penis is unusually large, much thicker and longer than mine. Plus, he's tall and strong, so he's very vigorous when he's having sex.

The slapping sounds were loud! I glanced at his sister just now, and besides the undisguised pleasure of being fucked, her face also showed a hint of fatigue and pain, and her moans were getting louder and louder!

Actually, my penis had been hard for a while, but I said I was done because I couldn't bear to. This

is the first time I've seen my wife being fucked like this since we got married. No matter how hard I fuck her during sex, I've never seen her make that expression, nor heard her moan so loudly.

Hearing his sister say that, my brother-in-law fucked her even harder. The flesh on his sister's buttocks jiggled with each thrust, her sagging breasts swaying back and forth.

"Good brother... cum... sister... can't take it anymore..."

Finally, amidst his sister's loud moans, he ejaculated.

He pulled his penis out of his sister's vagina, wiped it with toilet paper, put on his pants, and then wiped the semen from her vagina. He sat down on the sofa opposite me and said, "Sister, brother-in-law, I'll finish my business tomorrow morning and take the train back this afternoon. I won't be coming back!"

His sister added, "Don't forget to take the things I bought for Mom back."

He hummed in agreement and went back to his room. Everything seemed so natural, as if nothing had happened.

After my brother-in-law left the living room, my wife and I went back to the bedroom and lay down on the bed. My wife seemed still caught up in the excitement of our earlier encounter, not quite recovered yet.

I glanced at the quartz clock on the wall; it was already past ten.

"Tired? Sleepy?" I asked.

"Not sleepy, just a little tired," she said.

"If you hadn't told me about your family's affairs last night, I would never have been able to accept what you did tonight," I said.

"Could you have sat there watching?" she asked.

"Don't be angry when I tell you," I said.

Then, I told her I'd secretly watched porn online, including incest videos, mostly foreign ones. Every time I watched them, I felt it was immoral, yet also very exciting, a strange impulse and twisted pleasure. After hearing about your family's incestuous history, I had mixed feelings, a jumble of emotions—excitement, anticipation, or something else entirely, I couldn't say. Later, I did have a urge to see how you committed incest. When I saw your brother insert his thick, long penis into your vagina, it was completely different from watching novels or videos; I was truly aroused. The reason your brother didn't go after you after having sex with me is truly out of consideration for our long-married relationship.

My wife was very moved by my explanation and didn't blame me for secretly reading pornographic novels and watching pornographic videos behind her back.

Speaking of which, I have to introduce my wife's family.

My wife's name is Wang Mengyao. She has two sisters, and my wife is the eldest. The second is her brother, Wang Honggang, and the youngest is her sister, Wang Xiuyue.

My father-in-law works in a state-owned enterprise as a section chief; my mother-in-law works in a public institution as a deputy section chief. Our two families used to live in the same compound and were neighbors. Everyone in the compound envied their family.

Speaking of their incestuous relationship, it all started with my wife, Wang Xiuyun, and her brother, Wang Honggang. In

the 1980s, the siblings went to the countryside as part of the "Down to the Countryside Movement." After returning to the city, they couldn't find suitable jobs, so they opened a small shop together selling DVDs, which was a popular business at the time. Later, they found that legitimate DVDs weren't selling well, so they secretly used connections to get some pornographic DVDs, which sold well! They made money! So they grew bolder and bolder.

The two of them started watching pornographic DVDs while selling them, becoming increasingly addicted.

One night, the siblings secretly watched pornographic DVDs in the shop, behind the curtains. The footage showed a foreign brother and sister having sex. The two young men were overcome with lust, and Wang Honggang finally crossed a moral line, pulling his penis out of his pants.

The sister was stunned when she saw her brother's thick, long, and hard penis, her face turning bright red.

My wife said she was dizzy at the time and didn't even know how her brother had inserted his penis into her vagina.

A sharp pain in her lower body brought her back to her senses. When she regained consciousness, she felt no shame. The humiliation of incest that a young girl should have felt was replaced by the pleasure of being fucked by a man for the first time. She actively responded, constantly twisting her hips and occasionally letting out a few lewd moans... The sounds of real-life incestuous fucking, the moans, and the sounds of fucking coming from the television combined to create a lewd symphony that disturbed their minds, echoing in the small space of the shop, intensely stimulating the sensitive sexual nerves of the siblings. Her brother quickly ejaculated.

To her surprise, her brother ejaculated inside her. Afterwards, they were both very scared, and they only felt relieved when she had her period again.

Once, they could never forget that feeling, and they would do it again from time to time in the shop or when no one was home.

One time, they were having sex in the bathroom when their mother came home, and in the chaos, their mother noticed something was wrong.

Without hesitation, the siblings decided to drag their mother into it as well.

After that, my wife said she often brought DVDs home to watch, and even deliberately turned the volume up so her mother could hear.

One day, it was just the two of them eating at home, and her mother asked her, "What have you been playing so loudly these past few days?"

"Is it nice?" she asked.

Her mother didn't answer.

She continued, "The DVD I brought home today is really good, do you want to watch it?"

Her mother said, "Is it really that good?" "

Whether it's good or not, you'll see when you watch it," she said.

After dinner, her father and brother weren't home. She led her mother to her room, turned on the DVD player, and started playing a disc.

As she watched, she noticed her mother's breathing quicken and her face flush.

After the disc finished and the player was off, she asked her mother, "Was it good?"

"What nonsense,"

her mother said, but my wife could still see excitement, satisfaction, and lingering affection on her face.

The next day, she brought home another DVD. After dinner, she asked her mother if she wanted to watch it. Her mother feigned concern and asked if there were any more. She then led her mother to her room to watch it again.

A few days later, she went to the store and told her brother that the time was right, saying that the DVDs she had brought home these past few days were all incestuous, and that her mother not only wasn't disgusted but was actually very engrossed in them. She then told her brother to find an opportunity to seduce her mother.

Time passed day by day. During this time, she continued to bring DVDs home for her and her mother to watch, and occasionally brought other types of pornographic DVDs, such as those featuring gay men, lesbians, and transvestites, to give her mother a change of pace, which her mother enjoyed watching.

One day, she received a call from her mother at the shop, asking her to bring her younger brother home for dumplings after work. After hanging up, the siblings exchanged a knowing smile.

After eating dumplings at home, it was already dark. Her mother washed the dishes in the kitchen while the two siblings watched a DVD in the living room. It was a foreign family incest film with Chinese subtitles. After her mother finished washing the dishes and returned to the living room, the two siblings led her to sit down on the sofa.

After watching for a while, the screen showed two men having sex with a middle-aged woman. The subtitles indicated that the older man was the middle-aged woman's husband, and the younger man was her son. The younger man was on top of the middle-aged woman, thrusting his hips back and forth, clearly having a great time; it was obviously the son having sex with his mother. Her husband stood by, holding his wife's hand and watching...

Seeing this, her younger brother suddenly reached out and hugged his mother, saying, "Mom, I can't hold back anymore!"

"What do you want to do? Don't do anything reckless!" her mother scolded.

Despite saying this, her hands didn't move, offering no resistance.

Her brother roughly pulled off her skirt and panties, pressing her buttocks against the coffee table. Her mother half-heartedly resisted. When her son thrust his penis hard into her vagina and began to pump rapidly, her former restraint vanished.

She began to moan, began to sway her hips in rhythm, and even began to swear... "Fuck me... harder... your son's penis is so big... bigger than your father's..."

The incest continued for a long time; after he finished with his mother, he then had sex with his sister in front of her. From then on, the three of them became obsessed with incest.

Once, after the three of them had just finished incestuous relations, my wife asked her mother, "Why hasn't Dad come home for so long?"

"Your dad's used to being a womanizer; it's normal for him not to come home for days," her mother replied. Then, she added, "Are you trying to take advantage of your dad again? He's had those feelings for you for a long time; I can tell."

My wife was stunned and said, "Really?"

Her mother didn't say anything more.

Sure enough, a few days later, her mother called her father back, and they had an incestuous relationship with all four of them.

In this family, only the younger sister was innocent. Thanks to the last shred of conscience a mother had left, she seriously stopped her eldest daughter from having her younger sister participate in incestuous activities.

Because of my special status and her perception of me as old-fashioned, she never dared to tell me about her family's affairs.

Ten years ago, I left that city for a job transfer and moved to this city. The two cities are far apart; she's only been back twice in the more than ten years since we moved here, and it was also her younger brother, Honggang's, first time here.

Knowing about their family's past, the scene at the beginning wasn't surprising.

But when I learned that my wife was the "instigator" of their incestuous relationship, I felt incredibly depressed. If I had known, I should have released all that pent-up desire sooner. Fortunately, my wife promised that next time her brother comes, I can have sex with her in front of Hong Gang first; that's a kind of "reward" for me.

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Watching his brother-in-law have sex with his sister

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