Her Husband's Brother's Stolen Weekend Lust

Her Husband's Brother's Stolen Weekend Lust

I still can’t believe I’m writing this. My name is Lauren. I’m twenty-eight, married for four years to Mark, and until last weekend I had never cheated on him. Not once. Not even in my head, not really. But Derek changed everything.

Mark was in Singapore again—another two-week trip that left me alone in our too-big house with a dead alternator and a car that wouldn’t start. I was stranded on the rural route that cuts past the mountains when I called the only person I knew within fifty miles. Derek answered on the second ring, his voice warm and low the way it always gets when he talks to me.

“Stay at the cabin,” he said without hesitation. “I’m already here. I’ll come get you.”

The drive in his truck was quiet except for the low thrum of country radio and the heavy awareness that sat between us like a third passenger. We’ve always had this… thing. Stolen glances across holiday tables. Flirty texts that could be explained away as “family banter.” The kind of tension that makes your stomach flip even when your husband is sitting right there. Derek is thirty-two, tall, broad through the shoulders from years of construction work, with that lazy, knowing smirk that makes my thighs clench. He’s Mark’s step-brother, not blood, and that technicality has never felt more convenient than it did when he carried my overnight bag inside the cabin and his fingers brushed mine.

The place was perfect—secluded, all dark wood and heavy beams, a massive stone fireplace already crackling. He poured me a glass of red without asking. I accepted it, aware that my nipples were already tight against my thin sweater. We sat on the wide leather couch, closer than we should have been. The fire painted gold across his sharp jaw and the corded muscle of his forearms.

We talked about safe things at first. Mark’s trip. My car. How quiet the cabin was at night. Then the second bottle came out and the safe topics burned away.

“I’ve wanted you for years, Lauren,” Derek said suddenly, voice rough. His eyes locked on mine, no trace of his usual teasing smile. “Every fucking holiday. Every time you wore those tight jeans around the family. I’ve jerked off thinking about you more times than I can count.”

My breath caught. The confession should have shocked me. Instead it felt like permission I’d been waiting for since the day we met.

“I know,” I whispered. “I’ve felt it too. I touch myself thinking about you when Mark’s gone. I feel guilty… but I still do it.”

The glass I reached for was only an excuse. I let my breasts brush deliberately against his bicep, the soft swell of them pressing against hard muscle. The contact was electric. Derek’s hand shot out, wrapped around my wrist, and then his mouth was on mine—hot, demanding, years of pent-up hunger pouring into one filthy kiss. His tongue stroked deep, claiming. I moaned into his mouth and climbed into his lap without thinking, knees straddling his thighs, my soaked panties grinding against the thick ridge of his cock through his jeans.

We both knew what this was. Betrayal. The kind you can’t come back from.

Derek stood up with me still wrapped around him, carried me the few steps to the back of the couch, and bent me over it in one smooth motion. My skirt flipped up. He ripped my lace panties down my thighs with a growl.

“Been dying to fuck this married pussy,” he rasped, dragging the thick head of his cock through my dripping folds. “You’re going to take every inch like the dirty little secret you are.”

He thrust in hard.

I cried out at the sudden stretch. He was bigger than Mark—thicker, longer—and the angle had him bottoming out on the very first stroke. Derek didn’t give me time to adjust. He gripped my hips and started pounding me in deep, possessive strokes that made my toes leave the floor. The wet slap of skin on skin filled the cabin, louder than the crackling fire. Every thrust forced a broken moan out of me.

“That’s it,” he snarled, one hand fisting my hair. “Take it. This cunt belongs to me now. Say it.”

“It’s yours,” I gasped, pushing back to meet every brutal thrust. “Fuck—Derek, it’s yours.”

He slapped my ass hard enough to sting, then did it again, growling my name like a curse. The sharp sting mixed with the relentless drag of his cock against my g-spot until I shattered, coming so hard my vision whited out. He didn’t slow down. He fucked me through it, drawing it out until my legs shook.

When he finally pulled out I was almost sobbing with need. He spun me around, sat on the rug in front of the fire, and dragged me down onto his lap facing away from him. Reverse cowgirl. I sank onto his cock with a grateful whimper, taking him to the hilt. His hands guided my hips, forcing me to ride him hard and fast. One palm cracked across my ass again and again while the other reached around to rub tight, ruthless circles over my swollen clit.

“Ride that dick, baby. Show me how bad you’ve needed this.”

I ground back on him desperately, rolling my hips in filthy circles, chasing the next orgasm. The angle let him hit impossibly deep. My tits bounced with every downward slam. Derek’s filthy praise never stopped—telling me I was tighter than he imagined, that my husband could never fuck me like this, that I was his now. The words pushed me over again. I came with a hoarse scream, pussy clenching around him so hard he groaned like he was in pain.

He lifted me off him, carried me to the bedroom, and threw me down on the big king-sized bed. Then he crawled over me, caught both my wrists in one large hand, and pinned them above my head. The look in his eyes was pure possession as he spread my legs wide and sank back inside me in one long thrust.

This time it was slower. Deeper. He fucked me like he was trying to ruin me for anyone else. His mouth latched onto my neck, sucking hard enough to leave marks I’d have to hide. Every thrust dragged a fresh cry from my throat. I wrapped my legs around his waist and met him thrust for thrust, shameless now.

“Look at me when you come,” he ordered, voice ragged. “I want to see it.”

I did. I came screaming his name louder than I had ever screamed Mark’s in my entire life. The orgasm tore through me so violently my back arched clean off the bed. Derek followed right after, burying himself to the root and flooding me with hot, thick pulses of cum. I felt every spurt, felt it overflow and leak out around his cock as he kept grinding through the last tremors.

We stayed locked together, panting, sweat-slick and trembling. He kissed me softly this time—almost tenderly—then rolled off me with a satisfied groan. I curled against his chest, already knowing I was completely fucked in every sense of the word. His cum was still leaking slowly down my thighs when I finally drifted off in his arms, marked by his teeth and his scent and the knowledge that I would never be satisfied by my husband’s touch again.

The next morning I woke to an empty bed and the smell of coffee. My body ached in the most delicious way. I could feel the bite marks on my neck and shoulder, the faint bruises on my hips where he’d gripped me. When I stood up, a thick trickle of his dried cum cracked on the inside of my thigh. I didn’t clean it off right away. I liked the filthy reminder.

I dressed in yesterday’s clothes, already composing the text I would send him once I was safely on the road.

Last night ruined me. When can I see you again? Need to arrange a “family visit” soon. Delete this.

I erased the entire weekend from my call log, my messages, my browser history. By the time I stepped out onto the porch, I looked almost normal. Just a married woman whose car had broken down and whose brother-in-law had been kind enough to give her a place to stay.

Derek was waiting by his truck, hands in his pockets, watching me with that same dark hunger from the night before. He didn’t say anything. He just smirked—the kind of smirk that promised this was only the beginning.

I was halfway down the steps when my phone started ringing.

It was Mark.

He was home early.

And he was already pulling up the long driveway to the cabin.