ONYX FICTIONMy father-in-law’s secret longing: the forbidden entanglement between a 26-year-old daughter-in-law and a 54-year-old father-in-law
Novel

My father-in-law’s secret longing: the forbidden entanglement between a 26-year-old daughter-in-law and a 54-year-old father-in-law

♙ Anonymous◷ 2026-09-18◉ 0
Family incest

A beautiful 26-year-old married woman lived with her parents-in-law after marriage and gradually noticed the father-in-law’s burning gaze. On an afternoon when the family was absent, long-repressed desire erupted. From testing and teasing to complete intercourse, the process delicately describes the physical reactions and psychological struggle between adult man and woman, entirely voluntary and mutually accommodating.

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I am 26 years old, a college graduate. Before university, I didn't realize I had any beauty. But after graduating from high school, my skin, appearance, and figure underwent quite a few changes. I was very surprised and satisfied with these changes myself. Many people praised my figure and face. When meeting old classmates, they always looked at me in astonishment and would say things like: 'Ah! You've changed! So beautiful!' or 'A girl changes eighteen times as she grows up, you've really become too beautiful!'

My height is 165cm, measurements 34D-22-34, weight 50kg, with an oval face. I love my legs the most; not only are they evenly proportioned, but the skin is fair, glossy, and delicate.

My husband was my classmate from college. We started dating during our student days. He is quite handsome, and our classmates were all envious of us back in school. After graduation, he enlisted in the military right away, and I soon started working at an IT company.

Due to work requirements, not long after starting my job, I saved up and bought a computer. At night at home, besides completing some unfinished work from the company, I also learned to surf the internet. After a while, I became aware of some pornographic websites and occasionally visited them to browse gossip, pictures, erotic novels, etc. Sometimes, when I saw something arousing, I would masturbate to relieve the pain of missing my boyfriend.

After waiting for two years, he finally completed his military service and successfully found a job in the high-tech industry. Two years ago, we finally got married.

Because he was an only child, his parents-in-law kept us close and refused to let the two of us live by ourselves. After marriage, we were deeply in love, and our parents doted on us as well.

My father-in-law is 54 this year and works at a state-run company. He has a medium build, and it is said that when he was young he was an athletic star and very handsome. Now, though already middle-aged, he still shows no signs of aging. My mother-in-law is 52, a standard kind and virtuous housewife. They are both in good health. During the day, my mother-in-law stays at home, cooking and doing housework, handling all the little chores with ease and taking care of everything, so the home is always neatly kept. Like this, lucky me, after work I don’t have to do housework and can devote myself to accompanying my husband.

My company work carries considerable pressure, and I must dress formally at the office. So when I get home, I love changing into more relaxed clothes. My favorite is wearing shorts with a light T-shirt.

Perhaps it was because this kind of attire showcased my figure and those exceptionally beautiful jade-like legs, attracting the gaze of my father-in-law.

A few weeks after the wedding, I discovered that my father-in-law’s eyes always followed my body wherever it went. I often found him secretly watching everything I did, which sometimes made me feel a bit "uncomfortable."

I initially thought of finding an appropriate time to hint to him not to keep looking at me like that. But seeing how filial my husband usually is to his parents, I really didn't know how to bring it up.

One day, my husband was working overtime and would be home very late. Having nothing to do, I went online to browse. Of course, it was inevitable to visit some adult websites.

I enjoy reading erotic novels. Some articles, though vulgar in wording, are quite provocative and can really make one fantasize. Others are written with very elegant language, presenting erotic love stories in a commendable way.

Suddenly, a title caught my attention: "The Love Story of the Father-in-law and the Daughter-in-law," and drew me in to read it.

The more I read, the more it shook my heart. It was an article with beautiful wording and extremely provocative and stimulating content, making my body heat up wave after wave, my private parts secreting much love fluid, soaking my underwear.

Oh my~ ever since I finished reading this article, I no longer mind Father-in-law’s covetous gaze toward me; instead, I have begun to feel a strange fondness for this man in his fifties. A special curiosity arose in me: I wanted to try having sex with a man much older than me, and find out what it felt like.

From then on, whenever his gaze secretly watched me, I felt an inexplicable excitement and satisfaction. I even wanted to intentionally or unintentionally reveal a bit of the parts he wanted to see, to satisfy both my being-watched fetish and his voyeuristic desire.

And I noticed that my father-in-law also loved and cared for me more and more, one could say he was extremely attentive.

This happened on a day when I was nearly eight months into my marriage.

It was a hot Sunday. My husband went to work overtime early in the morning.

Around noon, just as my mother-in-law had finished preparing lunch, my husband's uncle rushed in, saying there was something urgent at his mother's house, and hurriedly took my mother-in-law away.

Now only my father-in-law and I were left to have lunch together. As soon as my mother-in-law left the house, my father-in-law called me to the dining room for lunch.

I was wearing a loose, thin shirt with the sleeves rolled up to my elbows. Because it was hot, I chose a loose, small white bra—the kind that just covers the nipples, supports the lower part of the breasts, but leaves the upper part and most of the breasts exposed. On the bottom, a simple white short skirt. I sat opposite my father-in-law, and we chatted casually while eating.

But I noticed that my father-in-law was staring intently at my breasts. Perhaps because my mother-in-law wasn't there, he was so brazenly coveting them that it made me a little uneasy, but inside I felt excited.

Gradually, I felt my panties becoming damp. My heart was both excited and somewhat flustered, and I could no longer taste the flavor of my mother-in-law's signature dishes.

I stood up, bent over, and helped Father-in-Law serve a bowl of soup. Because the first button of my shirt was undone, the bending motion caused it to open wide, revealing half of my delicate, snow-white, full breasts.

Of course my father-in-law would not miss such a good opportunity; his gaze went straight to my full yet not too large breasts.

I knew he was peeping; he had already forgotten to chew the food in his mouth from watching.

He was lecherous, his eyes fixed intently on the part of my chest that my bra could not cover. I was even more excited, deliberately slowing my movements so he could take it all in.

I don’t know whether it was because Father-in-law was flustered and lost his head, or just a coincidence, but after I served the soup and sat back down, Father-in-law’s chopsticks suddenly fell to the floor, and he immediately bent down to pick them up

At this moment, my natural reaction was to slightly spread my legs, allowing him 'an opportunity' to peek at the scenery.

Sure enough, after checking for a long time, still not seeing him return to the table to eat, I bent down to look at my father-in-law.

My father-in-law still didn’t know I was bending down looking at him. His eyes were fixed straight on the skirt where my lower body revealed two pale thighs.

Today I was wearing a white, nearly transparent gauze thong panty, which could only barely cover the important part in front of the vulva, and a little pubic hair would show on both sides of the panties.

My father-in-law was lying on the floor, his eyes almost right in front of my pink thighs, staring unblinkingly at my lower body.

I spread my legs even wider, letting the skirt open. My lower body was now only covered by a small, transparent thong.

His eyes were so scorching that I felt as if he were stroking my swollen, bulging private part.

I suddenly felt my body begin to heat up, and my mind flashed with the provocative scenes from the article 'The Love Story of Father-in-Law and Daughter-in-Law' I had seen online.

I sat on the chair, involuntarily wriggling my buttocks, spreading my thighs open, anticipating the violation from the old man under the table.

My father-in-law finally came to his senses and looked up to find me watching him. As our eyes met, both of us felt awkward for several seconds.

I was a bit disappointed. I pretended nothing was wrong and asked, 'Dad! What's wrong! Can't find the chopsticks?'

"Oh... have... have... I see... it..." His voice stammered, as if he was speaking while swallowing saliva.

He picked up his chopsticks and returned to his seat to eat.

After finishing lunch, I cleared the bowls and plates from the table and went to the kitchen to clean up. Father-in-law sat on the living room sofa watching TV. After cleaning, I poured a glass of juice for Father-in-law.

When my father-in-law took the glass of juice from me, he deliberately touched my hand. I was startled, and before he had a firm grip on the glass, I had already let go, and the glass of juice spilled all over my father-in-law.

I hurriedly apologized to my father-in-law, picked up the box of tissues on the coffee table, bent down, and started wiping his body everywhere.

Bending over, her breasts were once again exposed to view, and my two white, smooth, half-rounded mounds on my chest trembled into view!

The father-in-law, seated on the sofa, was once again staring fixedly at my chest.

Coincidentally, the area around my father-in-law's pants zipper had the most spilled juice, so I grabbed several tissues and wiped there...

I noticed something gradually bulging in my father-in-law's pants, so I deliberately pretended not to know and rubbed it more forcefully.

And so, the father-in-law, provoked by me beyond endurance, flushed red, eyes feverish, his breathing growing rapid.

My father-in-law raised his hand and slowly moved closer to me... I still pretended not to know and continued wiping.

Suddenly, I felt my father-in-law's有力的双臂围住我的细腰. My reaction was not to摆脱 him immediately, but只是蠕动着娇躯, not letting him贴紧.

But the father-in-law’s palm was moving near my waist, and gradually became more and more wantonly intrusive everywhere.

His groping made my heart beat even faster. My soft hands kept wiping the increasingly sensitive, swelling area of the old man.

My father-in-law’s palm slid downward, cupping my two buttocks and pulling them toward himself, and then the two of us were pressed together.

I felt flustered and excited, but still pretended to be surprised with an 'Oh my...!' without avoiding or shrinking back.

I deliberately gently broke free from him, blushing as I said, 'Don't!'

He held me tightly, kissed my pink cheeks, and gently bit my earlobe....

I was still saying: 'Don't...'

He stuck the tip of his tongue into my ear.

I let out an "Ah!" My whole body went weak and trembled.

His left arm wrapped around my waist, and his right hand moved onto my chest, gently pressing on my breasts.

“Ah... don’t... don’t do this... Dad... Mom will come back... ah... she... will come back...” I started talking nonsense.

He ignored me and continued his light indecency. I only heard him say: “My son really has good fortune, to have such a beautiful wife. Why can’t I, as the old man,…”

As he spoke, he forcefully pulled my hand, dragging me into his embrace and turning me around. I顺势 lay back on the sofa.

He flipped over and pressed down on top of me, kissing my mouth while hurriedly fumbling to undo the buttons on my shirt.

I deliberately shook my head to avoid his kiss, but before long, he still managed to kiss me.

He lifted my top, pushed the white bra up over my breasts, opened his mouth to take my nipple, and began sucking on it gently.

“Ah... ah...” Let out a soft cry.

He also used that big meat rod hard as steel to press against my private parts.

Feeling like I was about to faint, I gasped rapidly, gradually wrapping my arms around his head, but still saying with my mouth:

"Don't... don't, please..."

He seemed to sense my reaction, so he stopped for the moment, though he was still pressing down on me, studying my beautiful face.

I also opened my already dazed big eyes, looking at him.

He said to me: 「My good wife, ever since my mother went through menopause, I've forgotten that there are still delicacies in this world like you. Ever since you married into our family, I've been spying on you every day, your wonderful body, hoping to have a chance to try a young and beautiful woman like you!」

"Dad... but... if A Bin (my husband) and Mom... find out..."

"Don't say 'but' anymore. Just give me this one time, okay! As long as we don't tell anyone, they won't know... good wife, just this one time, okay? I've really been bewitched by your body for several months already. As long as you're at home, I am constantly wanting to possess you! Your face, your chest, especially those pair of snow-white beautiful jade legs, are constantly in my mind..."

As the old man spoke, his hands never stopped working, gently kneading my breasts and pinching my nipples with his thumb and forefinger.

Originally, the nipples, only the size of soybeans, were quickly pinched and rubbed by his thumb and forefinger until they became hard and swollen, standing up like a pair of bright red cherries.

Truly, ginger is spicier when old; he knows how to flirt with me better than my husband does.

Combined with the recent thinking catalyst of wanting to try what it feels like to have sex with a man who is much older than me, I became less and less able to resist him.

But after all, he was her father-in-law. Thinking of living in the same house in the future, there was inevitably the consideration of both love and fear, and of being hurt.

“...But...” Under his palms and fingers rubbing and kneading, my breathing became ragged and I could not speak coherently.

"Good wife, stop with all the ‘but, but’s.’ Seize today’s chance while no one is home! I guarantee I’ll love you even more afterward, and won’t let my son bully you!"

When a man wants your body, he can promise any condition and say anything, yet hearing it, a woman's heart is still filled with joy.

But I still couldn't agree to him in one breath; I still had to pretend a little: "...but...but..."

He was no longer holding back at all; he leaned down and kissed me, took off my already loosened shirt, then reached behind me to undo the back clasp of my bra and smoothly removed it.

A pair of white, tender, and plump pointed breasts were completely exposed, and I unconsciously covered the nipples with both hands.

He pulled my hand away, used his right hand to grasp and knead my left breast, then took the nipple of my right breast into his mouth, and used his tongue to lick back and forth over the tip; a wave of tingling pleasure surged over me.

He really was better at flirting than my husband, and more experienced.

Soon after, he switched sides, using his right arm to wrap around me, while his left hand rubbed the right nipple that he had just sucked on. His mouth, like a powerful vacuum cleaner, forcefully sucked on my left breast, almost drawing the whole breast into his mouth, while his tongue in his mouth kept circling around my nipple.

Oh my God! This feeling is so beautiful. My husband has never flirted with me like this. I could feel the love juices seeping from my private parts, already soaking my panties. My body has no strength left to resist, and my heart has convinced me: “There’s no need to keep pretending. I should temporarily forget my husband and accept this aroused old man in front of me. Perhaps today he can let me enjoy the lingering tenderness that I could never get from my husband in this lifetime!” I decided to surrender to him.

He kept, from time to time, sucking while using that big meat rod to forcefully press against my private parts.

In no time, I started making vague, muddled "mm... mm..." moans, my whole body becoming unbearably restless.

Comfortable to the point of losing my senses, unconsciously, I wrapped my arms around his head, demanding more from him...

My father-in-law’s tongue was still circling my nipple, his teeth lightly biting the tip as he alternated between sucking and licking. His other hand had already slid from my waist to my thigh, and through the thin layer of skirt and soaked thong, he was forcefully kneading my private part.

“Dad… slower…” My voice had become completely soft, with an obvious panting.

He lifted his head and looked at me with burning eyes: “Wife, you’re already soaked through.”

As he spoke, his nimble fingers parted the thin straps of the thong and directly touched my swollen labia. Two fingers gently separated them, and his middle finger smoothly probed into the already muddy entrance. My whole body shuddered, my legs instinctively clamping shut, but they were quickly pried apart again by his knee.

“Relax... let Daddy have a good feel.”

His fingers slowly moved inside her, while his thumb pressed on the clitoris and drew circles. The pleasure came fast and in dense waves; I couldn’t help twisting my waist, both hands gripping his shoulders. The shirt had already been completely removed by him, the bra was also thrown aside, and her upper body was completely naked. One layer of the skirt was lifted to her waist, leaving only the white sheer thong that offered almost no cover.

My father-in-law looked down at the place where his fingers were going in and out, his breathing growing heavier and heavier. He pulled his fingers out and brought the wet fingertips to my lips. I subconsciously took them into my mouth, my tongue curling over his knuckles, tasting my own flavor.

He let out a low, breathy gasp and quickly undid his belt and zipper. His thick penis sprang out, obviously thicker and longer than my husband’s, the glans fully engorged, with clear liquid seeping from the tip.

“Wife... help Dad...”

I didn't refuse. Reached out and grasped that hot, hard shaft, stroking it a few times up and down. His breathing immediately became ragged, his hips thrusting forward slightly. I sat up a bit, lowered my head to take the head into my mouth, swirling my tongue around the corona while using my hand to attend to the shaft below.

“Good... you really know how to suck...” He pressed the back of my head, but didn’t force it downward; he only gently stroked my hair.

I worked diligently with my mouth for a while, saliva dripping down the shaft to his scrotum. He suddenly pulled me up, pressed me back onto the sofa, and used his knee to part my legs. The thong was pulled aside by him, and his thick, hot cock head pressed directly against my wet entrance.

“Is it okay?” he asked, staring into my eyes.

I nodded, my voice so soft it was almost inaudible: 'Come in... Dad...'

He sank his waist, and the whole thing slowly but firmly pushed in. I let out a long moan, my hands gripping his arms tightly. Inside, I was filled completely, deeper and more swollen than when I did it with my husband. He stopped at the deepest point to let me adjust, then began to thrust slowly.

Each time he withdrew until only the glans remained, then plunged the entire length back in. The sofa swayed gently with the motion, the sound of flesh colliding particularly clear in the quiet living room. My legs actively wrapped around his waist, my heels pressing against his buttocks, matching his rhythm.

“Dad… so deep… a little faster…”

He sped up as he was told, both hands supporting my butt and pulling me toward him. With every thrust he hit that most sensitive spot, waves of pleasure piling up. My moans grew more and more uncontrollable, my fingers leaving shallow red marks on his back.

He suddenly picked me up and let me straddle his legs. This position let him go even deeper. I braced my hands on his chest and moved myself up and down, my breasts shaking violently in front of him. He lowered his head to take one nipple into his mouth and sucked hard, while his hands gripped my waist to help me rise and fall.

The climax came fiercely and long. My whole body tensed, my vagina contracting violently, love fluid flowing from our joining onto his thigh. He didn't stop, continuing to thrust, prolonging my pleasure. When I had calmed slightly, he laid me back on the sofa and entered from behind.

I knelt on the sofa, gripping the backrest with both hands, my buttocks raised high. He entered me fully from behind, one hand reaching around to rub my clit, the other grabbing my breast. This angle was deep and heavy, each thrust making me lurch forward.

“Dad… I’m about to cum… cum inside…”

In the final dozens of thrusts, he was fast and ruthless, his whole body pressing down on my back, scorching semen shooting in streams into the deepest place. I climaxed again at the same time, my body trembling nonstop.

After ejaculation, he didn't withdraw immediately, just held me in the inserted position, kissing the back of my neck and shoulders. Our breathing gradually calmed, leaving only the low hum of the air conditioner in the living room.

After a long time, he slowly withdrew. Semen mixed with vaginal fluids flowed down the inner thighs. I lay weakly on the sofa, while he took a tissue and carefully wiped me clean.

“From now on… will there still be a chance?” he asked softly.

I looked at him and didn't answer immediately. I knew clearly that after today, the relationships in this household had completely changed. But the lingering sensation in my body—the feeling of being completely filled and controlled by an older man—made it hard for me to easily say 'no.'

“Let’s see how it goes...” In the end I only said this one sentence.

He nodded and helped me put on my clothes one piece at a time, and he tidied himself up as well. Faintly outside the window came the sound of Grandma and Uncle talking—they were back.

The two quickly returned to their usual composure. Father-in-law sat back down on the sofa and continued watching TV, while I walked into the kitchen, pretending I was still tidying up.

But my heartbeat took a long time to calm down.

This day was just the beginning.

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