Dangerous Affairs with My Brother-in-Law

I am a 34-year-old housewife married for seven years to a one-year-older husband who works as a site engineer at a construction company.

My husband is of average height with an ordinary face—not the type to fall for at first sight—but kind and diligent, so I ended up marrying him just six months after we met, pushed by my parents' strong encouragement.

My husband is the youngest of three brothers and one sister, and all his siblings live nearby, so they often gather together.

The older brother-in-law who first opened my eyes to sexuality was quite different from my gentle, slightly timid husband and the younger brother-in-law. Tall and handsome with a southern Korean charm, he had a bold personality and was very popular within the family. I gradually began to feel attracted to him.

On weekends, the siblings and their spouses often went out together for dinner or karaoke, and it was always the older brother-in-law who led the atmosphere. His singing was so good it rivaled professional singers, and before I knew it, I had started secretly admiring him.

The older brother-in-law treated me with special care, to the point that my sister-in-law sometimes felt jealous. At first, it made me uncomfortable, but as my feelings for him grew, I became accustomed to his unusual attentiveness.

Then last autumn, on a weekend, our families went hiking at Bukhansan and came down together for dinner with soju. The kids were left at their aunt’s house, and afterward, the four of us went to karaoke. Despite being forty, the older brother-in-law surprised me—instead of loud party songs, he sang soft, modern ballads beautifully, and I found myself completely captivated by his deep, resonant voice.

That night, naturally split into two groups at karaoke—my husband and sister-in-law preferring upbeat tunes, while the older brother-in-law and I stuck to ballads—I was startled by my own urge to lean into him when he tenderly put his arm around my shoulder during a duet.

`Is it okay for my heart to drift like this?`

I felt guilty toward my sister-in-law and husband, but comforted myself with the thought that liking someone secretly wasn’t a crime, and slowly justified my feelings for the older brother-in-law.

When the older brother-in-law suggested another drink after karaoke, I didn’t show it, but inwardly, I was delighted.

Spending time with my quiet husband wasn’t particularly fun, whereas the older brother-in-law’s company, full of lively conversation, felt genuinely enjoyable.

But my husband said he was too drunk and wanted to go home, and my sister-in-law insisted on picking up the kids from the aunt’s place.

With no choice, the sister-in-law said she’d come later, and the three of us headed back to our house.

As soon as we got in, I happily prepared some light snacks and brought out an expensive whiskey I’d been saving for a special occasion.

`Whoa. What’s this, Valentine’s Day? Huh. A 30-year-old bottle?`

`Yes. It was a gift I got last year.`

`Really? Hey, you. You should’ve said something earlier. Were you hiding this to drink alone?`

`I didn’t even know we had this?`

My husband, surprised by this unexpected treat, happily joined us at the table. Used to the older brother-in-law’s playful, risqué banter, we sipped the whiskey and had a good time. After a few drinks, my husband, clearly drunk, leaned back on the sofa and soon fell asleep, snoring loudly.

The older brother-in-law and I continued drinking the remaining whiskey. I caught his subtle, lingering glances and occasionally met his eyes, letting my own feelings show.

Eventually, we finished the whiskey, and I quietly tried to hide my disappointment.

`It’s already so late. Your wife must be waiting. You should go home.`

`Yeah, sister-in-law. Does Kyungmin (our six-year-old son) usually sleep at your place? You’re not picking him up?`

`No, she said they’ll let him sleep over. As soon as he wakes up, he plays with Jiyun (the aunt’s eight-year-old daughter).`

`I’ll put Seongcheol (my husband) to bed in the bedroom.`

`Yes, would you? When he’s drunk, he won’t even wake up if you carry him.`

I started clearing the table and doing the dishes when suddenly the older brother-in-law stepped behind me and grabbed my shoulders with both hands.

`Sister-in-law. Do you know that I really like you?`

I was breathless, stunned by his sudden move and words. I’d sensed he might have feelings for me, but never expected him to say it so boldly.

I tried to stay calm, though my heart pounded wildly.

`Oh, hyungnim. You’re such a tease. I like you too, you know. Hoho.`

`I’m not joking. I’m not saying this because I’m drunk.`

My legs trembled, and my hands shook so much the dishes rattled. I had no idea what to do. My mind spun with confusion.

Logically, I should rebuke him coldly and send him away, but deep inside, I longed to fall into his broad embrace and whisper, `I’ve liked you too.`

Though I’d secretly admired him, now that he was making a move, fear surged—my drunk husband asleep in the room, the image of my sister-in-law flashing in my mind.

I took a deep breath and said in a cold voice, `Hyungnim. You shouldn’t do this. I’ll pretend I didn’t hear. Please leave.` I turned to walk toward the bedroom, but he grabbed my arm and pulled me into his arms.

`I know you like me too. Do you think I don’t?`

I struggled in his arms.

`Even if I do like you, this is wrong. Please let go.`

But he was determined. Ignoring my resistance, he said, `I’m not doing this on impulse,` and kissed my lips.

He tightly gripped my head with one hand and sucked my lips, and I was powerless to resist.

I closed my eyes and slowly parted my lips. His tongue slipped in, rendering me helpless.

My own tongue began to respond eagerly to his movements, and I felt dizzy, as if losing consciousness.

"Oh God, what should I do now? This is wrong..."

My mind screamed to push him away, but my arms, betraying me, clung tightly to his broad back.

Still, I tried to regain composure and loosened his slackened grip.

`Hyungnim. Stop now. That’s enough. Please.`

But he grabbed my hand and pulled me into the child’s room, stripping off my top and unhooking my bra before I could react.

I felt ashamed and terrified by his forceful behavior. Was this really happening? I never imagined it would go this far.

I collapsed onto the child’s bed, covering my face and sobbing, `Hyungnim. Why are you doing this? I’m scared. This is wrong.`

Then he knelt in front of me, pulled my hands away from my face, and said, `You know I’m not a bad man. I’ve struggled with this too. It’s not easy having such a beautiful sister-in-law in front of me.`

I didn’t dislike his words. I lowered my head, speechless, but when he pushed me down, groped my breasts, and covered my lips again, I could only surrender. As he sucked my breasts and rubbed against my pants, a moan escaped me involuntarily.

`Ah~~~I..how...ah~~`

`Miyeon. I really like you. I’ve had feelings for you since the first time I saw you.`

The older brother-in-law called my name as he pulled down my pants, and I went limp, even lifting my hips to help him.

When he stripped, his muscular build was nothing like my husband’s, and his large member made me gasp in surprise.

`Hyungnim. Is this really okay?`

`Miyeon. What’s with ‘hyungnim’? Call me by name from now on.`

He caressed my breasts and moved down to my navel, and I bit the back of my hand to suppress the moans escaping my lips.

Then he pulled off my panties and started sucking my pussy. Lust exploded inside me, my body twisted, and I felt myself being pulled into a dizzying, euphoric trance.

I bit one hand to stifle my moans, completely overwhelmed.

`H~huh..ah~mm...h~~~uh...h~hah.. Seongsu...h~~uh`

`Miyeon. I love you so much. Your skin is so soft... I should’ve had you sooner.`

`H~~uh~..ah~ugh~~ Seongsu..I love you~~ah~uh`

Seongsu—no, hyungnim—moved, turning his large member toward my face. I grabbed it and sucked until my jaw ached.

He licked my anus while thrusting his member in and out of my mouth, occasionally groaning.

`Sloooop...suck...sloooop. Seongsu’s feels so good. I’m going crazy. Put it in me now.`

I begged, desperate to have his member inside my pussy.

`Miyeon. Your pussy is soaked. You say no but you’re so wet.`

`I don’t know. Just put it in. I’m going crazy.`

The older brother-in-law rubbed his large member against my wet pussy, driving me wilder.

`Ah~~ugh~~ha~hak~~ah~~uh ~hurry~~~put it in~~I’m going crazy~~h~~uh`

Then his member slowly entered. I floated into ecstasy, riding on clouds. As he thrust faster and deeper, I pulled the blanket to my mouth to muffle my cries, sobbing as I swallowed my excitement, unconsciously tightening my pussy around him.

`Ah~h..uh..uh..huhuh..hak..Seongsu..save me~~h..h..uh`

`Uh..ugh... Miyeon..you’re so tight..I love it..`

This was an ecstasy I’d never felt with my husband. After childbirth, he’d failed to satisfy me, and with his frequent work trips, our intimacy had become rare, leaving me frustrated.

This thrilling sensation was something I hadn’t felt in a long time.

I forgot everything else, completely absorbed in sex with hyungnim, as if my dormant lust had awakened.

I still can’t forget how amazing that first time with the older brother-in-law felt.

After drifting on clouds, I noticed he seemed tired, so I laid him down, sucked his nipples, caressed his muscular body, and took his member back into my hole. I twisted my hips, riding him in a sitting position, and reached another euphoric high.

When he said he was about to come, I reluctantly pulled off, gripped his member, and shook it—his semen shot out like a fountain.

I wiped the semen off my hands and his member with tissue, then gathered our clothes and went into the bathroom.

After showering, I came out, embarrassed, hoping he’d already left. But he was sitting on the sofa, drinking beer.

He gave a faint smile.

`Sister-in-law, have a nice cold beer. Seongcheol’s sleeping like a log.`

When I approached, covering my face with a towel, he pulled me to sit beside him, then kissed me lightly and whispered.

`Miyeon. Call me when Seongcheol goes on a business trip.`

`Ah, I don’t know. This was just a one-time thing.`

`Haha. Still playing innocent?`

I really was pretending. After that, I became the older brother-in-law’s woman. Whenever my husband went on a trip, I’d cook a nice dinner and call him. Sometimes on weekends, I’d leave the kids with my husband and meet hyungnim at a motel outside the city for passionate love.

But I still get along well with my husband. Am I really a bad woman? So what if I am? Even if I’m a bad woman, I don’t care—as long as the older brother-in-law remains my man.