Seduced by My Brother-in-Law: My First Cheating While My Husband Was Out – Part 3

Read previous part: Seduced by My Brother-in-Law: Secret Touches and Pleasure Under the Same Roof – Part 2

Irica woke up on Sunday morning with her body already humming. The memory of Patric’s thick fingers buried deep inside her under the blanket last night, the way she had come so hard she nearly soaked through her jeans, and that desperate grinding kiss on the sofa had left her restless all night. She lay beside Tom, listening to his steady breathing, and felt a fresh wave of guilt crash over her. This was wrong. So fucking wrong. He was her sister’s husband. But her pussy was already wet again just thinking about him.
Downstairs, plans for the day were being made over coffee. Tom was heading out for a long bike ride with his mates - a 50-mile loop through the Hertfordshire countryside. Jasmine had booked herself a full spa day in central London - massage, facial, the works - to unwind from the renovation stress.
“I’ll stay here,” Patric said casually, stretching his big arms. “Got some quotes to finish on the laptop. You don’t mind, do you, Irica?”
She shook her head, not trusting her voice. Their eyes met across the kitchen table. The hunger in his was unmistakable.
By 11 a.m. the house was empty except for the two of them. The rain had finally stopped, but the sky was still grey and heavy, wrapping the Islington terraced house in a private, quiet cocoon. Irica’s hands trembled as she made two cups of coffee. She wore a simple white camisole top with no bra and soft black yoga pants that hugged her wide hips and round arse. Her nipples were already stiff against the thin fabric.
She carried the mugs into the living room where Patric sat on the sofa, legs spread wide. He was wearing a tight navy t-shirt and black gym shorts. The thick outline of his cock was already visible, half-hard.
“Here,” she said softly, handing him the coffee.
He took it, but instead of letting go, he pulled her down onto his lap. The coffee was forgotten on the side table as their mouths collided in a deep, urgent kiss. There was no teasing this time. No slow build. Just raw, pent-up need. His tongue pushed into her mouth possessively while his big hands gripped her arse, squeezing hard and pulling her down against his growing erection.
“Fuck, I’ve wanted this for so long,” he growled against her lips. “Wanted to feel this sexy body on me since that Christmas two years ago.”
Irica moaned, grinding herself against the thick bulge in his shorts. She could feel how big he was - much thicker and longer than Tom. The guilt only made her wetter.
Patric pulled her camisole up, exposing her full, heavy breasts. He groaned at the sight, cupping them roughly, thumbs flicking over her hard pink nipples before leaning in to suck one deep into his hot mouth. Irica arched her back, cradling his head as he licked and bit gently, sending jolts of pleasure straight to her aching cunt.
She couldn’t wait any longer. Sliding off his lap, she dropped to her knees between his spread thighs. Her fingers hooked into his shorts and pulled them down. His cock sprang free - thick, veiny, and rock hard. The head was swollen and already leaking precum. It was beautiful and intimidating at the same time.
Irica wrapped her hand around the base. She could barely close her fingers around it. Looking up into his eyes, she leaned forward and ran her tongue slowly up the underside before swirling it around the head, tasting his salty precum.
“Shit, Irica…” Patric hissed, one hand tangling in her dark hair.
She took him into her mouth, sucking greedily. Her lips stretched wide around his girth as she bobbed her head, taking more of him each time. She relaxed her throat and pushed deeper until she gagged softly, tears pricking her eyes. The sound only seemed to turn him on more. He held her head gently but firmly, guiding her as she sucked him with wet, sloppy enthusiasm - loud slurping sounds filling the quiet living room.
“That’s it, baby. Suck your brother-in-law’s cock like a good little cheating wife,” he groaned.
The dirty words made her pussy clench. She slipped one hand into her yoga pants and rubbed her swollen clit while continuing to worship his thick shaft with her mouth.
After several minutes Patric pulled her up, kissing her hard despite the mess on her chin. “Bedroom. Now. I need to fuck you.”
They practically ran upstairs to the guest room. The moment the door clicked shut, clothes were torn off. Patric pushed her onto the bed on her back and yanked her yoga pants and soaked panties down in one motion. He spread her legs wide, staring at her glistening pussy.
“Look at this pretty married cunt,” he murmured. “Soaking for me.”
He buried his face between her thighs. His tongue licked broad strokes up her slit before focusing on her clit, sucking it into his mouth. Two thick fingers pushed inside her, curling perfectly. Irica cried out, hips bucking against his face as he ate her with raw hunger. He licked and fingered her relentlessly until she came hard on his tongue, thighs clamping around his head, juices flooding his mouth.
Before she could recover, Patric climbed on top of her. He rubbed the fat head of his cock up and down her slippery folds, teasing her entrance.
“Please…” Irica whimpered, beyond shame now. “Fuck me, Patric. I need it.”
With one powerful thrust he buried half his length inside her. She gasped at the stretch. He was so much thicker than Tom. He pulled back and drove in again, sinking deeper until his heavy balls rested against her arse. Fully inside her.
“Fuck, you’re tight,” he groaned. “Tighter than Jasmine ever gets.”
He started fucking her properly then - long, deep strokes that made her breasts bounce. The bed creaked beneath them. Skin slapped against skin. Irica wrapped her legs around his waist, nails digging into his broad back as he pounded her.
They changed positions constantly, unable to get enough. He flipped her over onto all fours and took her from behind, one hand fisting her hair while the other slapped her jiggling arse. The angle let him hit even deeper. Irica moaned loudly into the pillow, pushing back against every thrust.
“Harder,” she begged. “Fuck me harder.”
Patric obliged, gripping her hips and slamming into her with powerful strokes. The wet squelching sounds of her drenched pussy filled the room. He reached around to rub her clit and she came again, screaming his name into the mattress as her walls pulsed around his cock.
He pulled out and lay on his back, pulling her on top. Irica straddled him, guiding his thick cock back inside her. She rode him eagerly, hands on his chest, hips rolling and bouncing. Her breasts swayed heavily as she fucked herself on her brother-in-law’s cock. Patric’s hands gripped her arse, spreading her cheeks, one finger teasing her tight little hole as she rode faster.
“You’re mine now,” he growled, thrusting up to meet her. “This pussy belongs to me whenever I want it.”
The words pushed her over the edge again. She came hard, grinding down on him as her orgasm ripped through her body.
Patric flipped them once more, pinning her beneath him in missionary. He hooked her legs over his shoulders and drove deep, fucking her with fast, punishing strokes. His balls slapped against her arse. Sweat glistened on both their bodies.
“I’m going to cum inside you,” he warned, breathing ragged.
“Yes,” Irica moaned, lost in the moment. “Fill me. Cum in my married pussy.”
With a deep groan, Patric buried himself to the hilt and exploded. Thick ropes of hot cum pulsed deep inside her, flooding her womb. He kept thrusting through it, pushing his seed deeper as her pussy milked every drop.
They collapsed together, panting, his cock still twitching inside her. For a long minute they just held each other, kissing softly as the reality slowly sank in.
Irica felt a wave of intense guilt mixed with the deepest satisfaction she’d felt in years. Patric’s cum was leaking out around his softening cock, dripping down her arse.
They cleaned up quickly, changing the sheets, spraying air freshener, showering separately. By the time Tom returned from his bike ride, flushed and tired, and Jasmine came back glowing from the spa, the house smelled of normal Sunday evening dinner.
Irica cooked roast chicken while Patric helped in the kitchen, acting completely normal. But when she bent over to check the oven, he stepped behind her and pressed his hardening cock against her arse for a second, whispering, “My cum is still inside you, isn’t it?”
She blushed deeply and nodded.
They all sat down to eat together. Irica sat carefully, feeling the warm, sticky evidence of her cheating slowly leaking into her fresh panties. Every time she shifted, she felt it. Patric’s seed. Her brother-in-law’s cum deep in her well-fucked pussy while she smiled and passed vegetables to her husband and sister.
Tom leaned over and kissed her cheek. “You seem really happy today, babe.”
Irica smiled, cheeks burning. “Just glad everyone’s here.”
Under the table, Patric’s foot rubbed slowly against hers.
The first time was done. She had officially cheated. And as she sat there with another man’s cum inside her, surrounded by her family, Irica realised with a shiver of dark excitement that she already wanted more.
So much more.