Relative Pleasures

Part 1

Copyright © 2026 by Obscene Vices

All rights reserved. No part of this publication may be reproduced, stored, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, without written permission from the publisher. It is illegal to copy this book, post it to a website, or distribute it by any other means without permission.

This novel is entirely a work of fiction. The names, characters, and incidents portrayed in it are the work of the author’s imagination. Any resemblance to actual persons, living or dead, events, or localities is entirely coincidental.

Obscene Vices asserts the moral right to be identified as the author of this work.

Trigger Warning:

This novel contains explicit themes of consensual incest between adult family members. It also includes graphic sexual content, group sex, and strong language. Reader discretion is advised. NOT FOR MINORS.

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Chapter 1 – Beneath The Facade

Mark and Jenny Davidson loved their suburban home and their life in it. They'd worked hard, raised two well-mannered kids and kept up appearances in their quiet little neighborhood. John, their eldest, had opted to do his first two years at community college before transferring to university, so he still lived at home. Emma, their youngest, was finishing up her senior year of high school. Having both kids still in the house was something the Davidsons were conflicted about. They liked their children close, sure, but it didn't afford them the privacy they craved. Because behind this picture-perfect suburban facade was a depravity that nobody knew about.

Jennifer Davidson, Jenny to everyone who knew her, the elegant mother who volunteered at bake sales and organized neighborhood cookouts, had a secret. A filthy, insatiable hunger that only her sister Amanda could truly satisfy. Mandy and Jenny had been lovers since they were teenagers, experimenting with each other's bodies long before either of them ever touched a man. They'd shared boyfriends. They'd had threesomes. A few orgies. They promised early on to always have each other's back, and front, for that matter. When they started dating their eventual husbands, Mark and Robert, they arranged for swaps before the men even proposed. The men knew and loved it. Now, years later and deep into married life, the four of them still indulged in their twisted little arrangement, fucking each other with the kind of abandon that would have scandalized their conservative community if anyone ever found out. They couldn't always do it, though. Families, jobs, life in general didn't afford them the luxury of regular meetups. But some nights, when the stars aligned and the schedules cleared, they met to relive it all.

Tonight was one of those nights.

With John and Emma supposedly out at a party, Jenny and Mark had invited Mandy and Bob over for dinner and a night of debauchery. Mandy and Bob's children were at the same party, so they had time too before anyone would be looking for them. Normally they'd head straight to the bedroom, but the kids were out for a good stretch of the night, and nobody could wait. They'd started in the living room, which was now a mess of discarded clothes and tangled limbs. A scene fit for the swinging gods.

Jenny was on her knees, her lips obscenely stretched around Bob's thick cock, taking him deep, almost to the base, gagging slightly every few strokes but not letting up. Mandy, who always worshipped her sister, knelt behind Jenny with her face buried between her spread thighs, tongue lapping at the wetness dripping from her sister's swollen pussy. Mark, good old dependable Mark, was behind Mandy, fucking her with steady, hard strokes, his hips slapping against her ass while his hand came down on her cheek with a sharp crack that echoed through the room. Mandy moaned into Jenny's cunt every time he hit her.

"Fuck, Jenny, your sister sucks cock sooo well," Bob groaned, his fingers tightening in her blonde hair as he rocked his hips, pushing deeper into her mouth.

Mandy pulled her face from between Jenny's thighs and looked up, her chin slick. "Don't flatter her too much," she purred, as Jenny glanced back over her shoulder. "She gets cocky."

Jenny pulled the cock from her mouth long enough to smirk. "I get cock, not cocky. And right now I've got Bob's. Get back to sucking me, sister of mine."

Mark chuckled at his wife. Mandy smacked Jenny's ass playfully before diving back in. Mark gripped Mandy's hips tighter, driving deeper, making her gasp against Jenny's pussy. "You like that, Mandy? Taking your brother-in-law's cock like a whore?"

"God, no," Mandy moaned. "Not a whore. A slut. Fuck me harder, Mark. Make me scream."

And scream she did. Loud enough that none of them heard the back door creak open.

---

John and Emma had been running late to the party, only to find it already busted by cops when they arrived. A few cruisers in the driveway, kids scattering across the lawn, red and blue lights bouncing off the house. Sometimes being late was a blessing. Disappointed but relieved they wouldn't have to explain a police encounter to their parents, they headed back home. They expected to find the house loud with Uncle Bob and Aunt Mandy over, the adults talking over each other the way they always did after a few beers and a bottle of wine. Instead, from the moment they stepped inside through the garage and side door, they heard moaning. And skin slapping against skin.

Emma froze at the doorway to the kitchen. The kitchen lights were off, which is probably why their parents hadn't heard the garage door. Her eyes adjusted to the dim light spilling in from the living room, where a couple of lamps were on. And then she saw it.

"OH. MY. GOD," she whispered, barely making a sound. John was right behind her. He sucked in a deep breath and stood frozen.

Their mother, Jenny, the poised and proper woman who scolded them for saying "shit" at the dinner table, was bent over the couch with her tits swinging wildly as Uncle Bob drove into her from behind. His hands gripped her hips, pulling her back onto his cock with every thrust. Beside them, Aunt Mandy was straddling their father's face, riding his tongue, and from the look on her face, he was doing one hell of a job. Mandy's hands were in Jenny's hair, pulling her sister into a deep, messy kiss. Not a sisterly peck. Not a friendly smooch. A real kiss, tongues and all, the kind you see in porn. Their mouths were open, their tongues sliding together, spit connecting their lips when they pulled apart for half a second before crashing back together.

John and Emma realized at the same time that the sisters weren't just swapping partners. They were enjoying each other too. That was incest.

They were absolutely flabbergasted.

Emma had grabbed John's arm without realizing it. Every time she thought she might scream or gasp, she dug her nails into his forearm to keep herself quiet. Her grip was going to leave marks.

"We shouldn't be watching this," she whispered to him. But she didn't move her eyes. Not even a little. She was completely transfixed.

John couldn't tear his gaze away either. "Fuck," he muttered. It was the first word he'd said since they entered the house.

He held his breath, terrified of making any sound, his cock already straining painfully against his jeans at the scene in front of them. It was having a similar effect on Emma. Her panties were soaked as she watched her prim, proper mother groan and fuck back against Uncle Bob, shouting, "Harder, Bob, dammit, harder!" The adults were so lost in what they were doing, so consumed by it, that they didn't notice the two kids slink away toward the stairs in the kitchen. John and Emma crept up the steps, quiet as burglars, their shocked silence expanding as the wet, filthy symphony of sex behind them slowly faded.

They made it to John's room. Emma locked the door behind them and collapsed on his bed. John stood still for a second, just processing, and then started pacing. Back and forth. Back and forth. "Fuck. Fuck. Fuck. Did... did you see them?" His voice sounded strange, like he couldn't trust what his own eyes had just shown him.

Emma nodded, though she wasn't ready to believe it either. "Mom... she was..." She swallowed hard. She couldn't finish the sentence. Couldn't quite make her mouth form the words to describe the image of their mother taking Uncle Bob's cock like that, moaning for more, begging for it harder.

John stopped pacing and stared at her with wild eyes. "And Dad was eating Aunt Mandy. And... and... she was kissing Mom. With her tongue. Like, deep." He struggled to get those words out. His cock was twitching painfully in his jeans as the living room scene replayed in his head, every detail sharper now than when it was actually happening. "They've done this before. There's no way that was a first time. They must have been doing it for years."

Emma bit her lip. Her body was betraying her in every way possible. Her breathing was fast and shallow, her skin tingling everywhere. And goddammit, she could feel herself getting wetter just thinking about it. Mom, Dad, Aunt Mandy, Uncle Bob. She'd never seen any of them act even remotely inappropriately before. Raucous, sure. Loud, definitely. But never anything like this. This was a full-blown orgy. Hungry, shameless, completely wanton.

Slowly, she lifted her gaze to meet John's. He'd stopped pacing and was looking right at her. Something passed between them. Something unspoken but unmistakable. It made her breath hitch.

"We shouldn't even be thinking about this," John muttered, looking away like that would somehow erase what he was feeling.

Emma bit her lip harder. "But we are."

The confession hung in the air between them. The room was silent except for the sound of their elevated breathing. Emma crawled across the bed toward John, who was sitting on the far edge. She stopped close to him, close enough to feel his body heat. "Have you... have you ever thought about me?" she whispered, tense, unsure how her brother would react. "Ever wanted me?"

John shuddered. Honesty went to war with denial in his head. "No" was the right answer. "No" was what a good brother would say.

But arousal won.

"Yes," he breathed out. The word was heavy with guilt and shame. "God help me, Emma, I have."

Emma exhaled. She hadn't realized she'd been holding her breath. Confession time, she thought. "Me too. Especially... especially after I saw you with Sarah Thompson last summer."

John's eyes darkened. "You watched?"

Emma nodded, a blush creeping up her neck. "Through the bathroom. You didn't close the door all the way, and I opened it a little more. I watched you fuck her. Hard. I was touching myself the whole time, imagining it was me." Emma and John shared the same bathroom, connected to both their rooms. It had always been a source of minor annoyance. Now it was something else entirely.

John grinned at her despite everything. "Sneaky bitch."

And suddenly the mood shifted. The heaviness between them didn't disappear, but it changed shape. Became electric instead of suffocating. Emma was on him in an instant, practically flying across the remaining distance. His hands came up to cradle her face as their lips met, and they kissed. Really kissed. Not a sibling peck. Emma pushed her tongue into his mouth, probing, and felt a surge of heat when John opened for her. She tasted him, and he tasted like something she'd been craving without knowing what it was.

John traced his sister's lips with his tongue like he had a duty to memorize every curve, every contour. He could taste the faint flavor of her smudged lipstick. They kissed for a long time, exploring, learning each other's mouths. When they finally broke apart, they were panting, foreheads pressed together, eyes closed, just breathing each other in.

"We shouldn't," John said. There was no conviction in his voice. Zero. None. His hands were already sliding under Emma's top, palms warm on her waist, inching upward toward her breasts.

Emma arched into his touch. "But we want to. I want to."

And that was all it took for John to lose whatever restraint he had left.

He kissed her again, slower this time, savoring the taste of her mouth as his hand slid up inside her top and found her breast. Emma gasped, broke the kiss, and pulled her top off in one motion. No bra. Just her firm tits and stiff pointed nipples. She made John stand up and pulled his Nirvana t-shirt over his head. Then she dropped to her knees, unbuckled his jeans before he could show any hesitation, and yanked his briefs down. His cock sprang free, hard and thick, bobbing in front of her face. "I've dreamed about doing this since that night I watched you with Sarah," she admitted, staring at it.

John kicked off his jeans and briefs, standing naked in front of his sister while she admired his cock from inches away. The veined length, the perfect crown, the slit beading with a drop of precum, and the smell of him. Just... John. She had to touch it. She wrapped her hand around his girth and started stroking him, slow and firm. The moan that came out of John's mouth told her she was doing it right.

He pulled her up after a minute and pushed her gently back against the pillows on his bed. He grabbed her skirt and panties together at the hem and looked at her face, searching for any sign of second thoughts. Regret. Doubt. Anything. But Emma just smiled and lifted her hips so he could pull them down.

"Fuck, Emma," he breathed as he saw his sister's pussy for the first time. Bare and glistening. "You're so beautiful. And you're so wet."

"Because of you," she accused him, smiling, but spreading her legs wider to give him a better view. She crooked her fingers near her pussy, beckoning him. Come here.

He didn't hesitate. John buried his face between her thighs and inhaled, breathing her in deep. Then his tongue was on her, a slow swipe from bottom to top and back down, tracing the folds of her labia, learning the terrain. He flicked at her clit, circled it, then plunged his tongue deep inside her pussy and started drinking her in. John loved his sister's taste. Sweet, salty, umami?

Emma cried out, her hips coming off the bed. Her fingers clutched his hair instinctively, pulling him closer. He knew what he was doing. He really did. Damn that Sarah Thompson.

"John, God... your mouth... your mouth is heaven!"

He wasn't done. He let Emma guide his head, and his tongue followed wherever she steered him. He added two fingers, curling them inside her pussy while his mouth focused on her clit, flicking and sucking the swollen nub as his fingers pumped in and out of her. Emma couldn't hold back. Her orgasm hit in waves, her thighs clenching around her brother's head, her fingers pulling his hair hard enough to hurt. John licked up everything that poured out of her, saltier, sweeter, umamier? He kept his mouth on her until she loosened her grip and her body stopped shaking.

Finally she parted her thighs and let him come up for air. He crawled up her body, planting kisses along the way, and lay beside her. He kissed her and let her taste herself on his lips and tongue. His hard cock lay against her thigh, twitching like it had a mind of its own.

Emma reached for it. She made him lie flat, sat beside him, leaned forward, and licked the crown, swirling her tongue around the head before taking his cock into her mouth in one smooth motion, going as deep as she could. John groaned, "Yesssss," as she deepthroated him the way she'd watched in porn. Slutty. Hungry. Eager to please.

"Fuck," he hissed, thrusting slightly into her mouth. "Just like that, Em... suck me, Em, just like Mom was sucking Uncle Bob."

The depraved comparison sent another rush of heat through Emma's veins, like her parents were unknowingly teaching her their dirty ways. She moaned around him and took him deeper. She could feel the stubble of his pubic hair against her nose, could feel the way his cock twitched in her mouth as he fought to hold back.

Then he pulled out. He didn't want to cum in her mouth. Not yet anyway. He pinned her back on the bed, got on his elbows and knees above her, careful not to crush her with his weight, and lined up his cock with her wet entrance.

"Are you sure, Em?" he asked. His voice had a tremor of hesitation in it.

Emma answered by wrapping her legs around his waist and pulling him forward. Before either of them could change their minds, the head of his cock was inside her, buried in her warm, slick pussy.

Then he paused, concern flashing across his face. "Emma, are you a virgin?"

She laughed. "Not anymore, I guess." Seeing the worry still on his face, she kissed him softly and said, "No, John. I'm not. Now can you please enter me fully?"

John smiled and pushed in, inch by inch, both of them grunting and gasping as their bodies joined for the first time. It was smooth. It was hot. It was so, so good.

"Fuck," John gritted out, his fingers digging into her hips. "You feel incredible."

Emma clung to him, her legs wrapped around his back as she adjusted to the stretch of him inside her. "Move," she begged, pushing her hips against him. "Make love to me, John. Like you've thought about."

He obeyed. Slowly at first, savoring every drag of his cock inside her, paying attention to her reactions, her sounds, making sure she was feeling good. Their kisses between strokes were tender, loving. But soon the tenderness couldn't hold against the arousal building in both of them. John's thrusts came harder, faster, more urgent. Emma's moans and John's grunts grew louder, filling the bedroom.

"Tell me..." John was more comfortable now, sinking deep into his sister with every stroke, watching the way her tits bounced each time he pushed into her. "Tell me how much you love your brother's cock."

Emma moaned loud, turned on by the fucking and the filthy words in equal measure. "I love it," she gasped. "Love that hard dick inside me, love how you fill me up, love that it's wrong but oh so right. I love you so much, John."

She fucked him back, matching his rhythm, and as another climax built deep inside her, her pussy tightened around his thrusting cock. "Fuck me, John. Make me cum again!" When she shuddered underneath him, her walls clamping down on him, John lost control. With a groan that came from somewhere primal, he came inside her, his hips jerking as he filled his sister's pussy with hot, pulsing ropes of cum.

He crashed beside her, spent. He spooned into her and kissed her neck, small pecks full of love and something protective, something brotherly that still somehow existed alongside everything they'd just done. Emma ran her fingers through his hair, staring at her brother with a depth of love that scared her a little.

He looked up. Smiled. She gave him a soft peck on the lips.

Emma traced lazy circles on John's chest with her fingernail, the scratchy sound the only noise in the room for a while. Then she whispered, "They do it all the time, don't they? Not just fucking random people. Mom and Dad. With Aunt Mandy and Uncle Bob. Their own family."

John inhaled sharply. "Yeah. You saw them. Christ, the way they moved together... like they've been doing it for years." His voice dropped, got rougher. "The way Mom moaned when Uncle Bob fucked her. How she kissed Aunt Mandy... like they were lovers, not sisters. Did you see how deep their tongues went?"

Emma shuddered. Her thighs pressed together involuntarily, trying to ease the itch building again between her legs. "They were so into it. Like... like they got off on the fact that they were related." A breathless laugh escaped her as she met his stare. "And we watched. And we fucking loved it."

John's hand slid up her thigh, possessive. "Couldn't look away. Seeing Mom like that... all that perfect makeup smeared, her tits bouncing while Uncle Bob fucked her. And Dad... Jesus, the way he was talking dirty to Aunt Mandy." His fingers caressed her thigh absently. "You think they ever did that while we were home? While we were in the other room as kids?"

"God, I dunno. But I fucking hope so," Emma said, her voice hoarse and rough. She rolled on top of him, straddling his hips, her wet pussy pressing down against him. All the dirty talk had them both going again. "I hope they knew we could hear. Hope they got off on it."

John groaned as she ground down on his hardening cock. "Fuck, Emma... we're just like them. We're fucking just like them. And we're about to start again. Tree, apple."

"Yeah," Emma giggled. "And I promise we're gonna get worse." Then she looked at him, mischief lighting up her eyes, her pussy grinding against his thigh. "What if we joined them?"

John's cock twitched hard against her, straining to find warmth. "Fuck."

Emma grinned and ground her hips down on his stiffening length. "Think Daddy would want me the way he wants Aunt Mandy? The way Uncle Bob wants Mom?"

John groaned, gripping her waist, trying to shift her so his cock could line up where it needed to be. "Jesus Christ, Em."

She leaned down, her lips brushing his ear, her slick pussy sliding along the underside of his shaft. "Let's find out."

Emma lifted herself up, reached between them, and wrapped her fingers around John's cock to hold it straight. She adjusted herself over him and lowered down slowly, sinking onto him. He filled her perfectly, stretching her again, and she sighed as she bottomed out. "Mmmm, yes, John. Fuck me. Just like I want to fuck Daddy," she breathed. She rolled her hips in slow circles, shifting the angle of his cock inside her, finding spots that made her whole body light up.

His hands gripped her tits, kneading them, using them as leverage. "Fuck, Emma... the way you fuck me... like..."

"Like a good sister should," she moaned, throwing her head back before leaning forward and kissing him again, her tongue pushing into his mouth, her tits mashed against his chest. "But Daddy won't know that, will he? I'm gonna make sure he buries into me thinking I'm his sweet, innocent daughter."

John grinned up at her and thrust harder, making her go "Oh yes, oh yes." He could tell she was getting off on the incest talk as much as the actual fucking. Two could play that game. "You gonna let him think that, you little minx? Or you gonna tell him how wet you got for your brother's cock first? That you rode me before you ever got to him?"

Emma's breath came in ragged bursts as she met him thrust for thrust, their skin slapping together, loud and obscene. "Maybe... maybe I'll make him watch us. Maybe we'll show him how it's really done. How to really fuck, the way my brother fucks me right now... yes, yes... and how Mom should fuck you."

The thought of fucking their mother made John shudder, his balls drawing up tight. "Fuck, Emma... I would love to fuck Mom... I'm gonna..."

Before he could finish, Emma suddenly lifted off him. She dropped down and wrapped her lips around his cock, her hand gripping the base. A few hard, fast strokes of her fist and he erupted into her waiting mouth, his teeth clenching as she took rope after rope, swallowing as he pumped, not letting a single drop escape. She kept swallowing even after he finished, milking the last of it with her hand.

John lay there in a daze, staring stupidly at his sister. Emma licked her lips with a wicked grin, then opened her mouth wide to show him. Empty. All gone. "Practice makes perfect, right?"

John collapsed back on the pillow. Then, with an anxious smile, he said, "Tomorrow then? Are you sure?"

Emma climbed back up his body, her lips brushing his. "Tomorrow, Daddy learns what his little girl really wants."

---

Meanwhile, downstairs in the living room, the adults were still going at it, completely unaware that John and Emma were home and had seen everything.

Mandy went to her knees beside Jenny, their naked bodies pressed together, skin flushed and sweating. Jenny grabbed her sister by the hair and pulled her into a kiss. Mandy thrust her tongue out first, and Jenny sucked it in before pushing her own tongue into Mandy's mouth. They kissed deep and wet, tongues swirling between their parted lips, making out like teenagers who'd just discovered what mouths could do.

"Look at you two hungry sisters," Bob said, stroking his thick cock slowly, precum glistening at the tip as he watched them paw at each other's tits. Their fingers pinched and twisted each other's hardened nipples while their tongues fought.

"Mmm, I always loved your tits," Mandy murmured, breaking the kiss to lick Jenny's throat, kneading her sister's breasts with both hands. "They've only gotten better with time. And they feel so good against mine."

Jenny moaned and arched into Mandy's touch. "God, Mandy, still so good with your hands. I miss your touch so much." She slid one hand down her sister's toned stomach and pushed it between Mandy's thighs, her fingers finding wet, swollen folds and pushing inside. "And you're so fucking wet. You miss me?"

"Fuck yes," Mandy panted, her hips bucking against Jenny's hand. "Been thinking about your pussy on my tongue while Mark fucked me from behind. I've missed his cock too."

Mark groaned from where he stood, gripping his own shaft at the visual of the two sisters touching each other. "Christ, you two are depraved."

Bob smirked, stroking himself lazily. "Ain't that why we married them?"

Mandy grinned without looking away from Jenny. "Correction. That's why we made you marry us."

They all laughed, and then Jenny pushed Mandy onto her back, spread her thighs, and knelt between them. "Time for dessert, baby sister," she purred, and then her tongue was on her sister's wet folds. A taste so familiar and yet somehow new every single time she went down on Mandy.

Mandy cried out, her back arching off the floor as Jenny devoured her. Jenny's tongue lapped at her pussy in long flat strokes, then her thumb and index finger found Mandy's clit, playing with the swollen nub like it was a little cock, rolling it, pinching it gently. "Oh fuck! Right there, Jenny! Just like that!"

Bob positioned himself behind Jenny and thrust into her in one smooth push, making both sisters moan in unison. "Damn, your pussy is so good. Every. Single. Time," he grunted as he started fucking Jenny while she feasted on her sister.

Mark knelt beside them, his cock at Mandy's eye level. He stroked her hair softly. "Do I get a turn, baby?"

Mandy turned her head and took Mark's cock between her lips with a filthy moan and a wet, slurpy sound. "Mmm, so yummy, Mark," she murmured before swallowing him back down, her cheeks hollowing as she sucked. The four of them formed a chain now. Bob fucking his sister-in-law Jenny. Jenny eating her sister Mandy's pussy. Mandy sucking her brother-in-law Mark's cock. Connected, filthy, perfect.

After a while Jenny shifted aside so Mark could enter Mandy. He pushed into her missionary style, and she wrapped her legs around him immediately, pulling him deep. Beside them, Bob had Jenny on all fours, fucking her doggie style with long, hard strokes. The two sisters lay side by side, getting fucked by each other's husbands, their hands reaching out to intertwine their fingers between them.

"Gonna cum, gonna fucking cum!" Mandy shrieked. Her pussy clamped down on Mark's cock as she shuddered and came hard, her whole body shaking. Watching and hearing her sister orgasm triggered Jenny's own, and she buried her face in the carpet and groaned through it.

Bob and Mark weren't far behind. Bob pulled out of Jenny first, flipped her around, and jerked himself over her face. Jenny stuck her tongue out eagerly, catching the thick ropes of cum as they landed across her cheeks, her forehead, her open mouth. Mark withdrew from Mandy with a groan and painted her tits and stomach with his load, thick white streaks across her flushed skin.

Jenny collapsed next to Mandy, both of them grinning, breathless, wrecked. Mandy leaned over and licked a streak of Bob's cum off Jenny's cheek. "Mmm, you taste so good like this. Cummy and slutty," she murmured before pressing her lips to Jenny's in a slow, filthy kiss. Their tongues mingled, swapping the mixed cum between their mouths, sharing it back and forth.

Bob and Mark watched the two sisters, still trying to catch their own breath. Mandy and Jenny scooped any stray drops from their skin and brought them to each other's mouths. Lick, swap, lick, swap, tongues swirling, again and again, savoring every last bit.

"You two are disgustingly depraved," Mark said, laughing.

Mandy beamed, stretching like a satisfied cat. "And you love it." She leaned over and gave Mark's soft cock a little goodbye suck.

Jenny sighed contentedly, resting her head against Bob's thigh. She gave his softening cock a quick suck too before declaring, "We really should do this more often. I've missed y'all so much."

A glance at the clock had all four of them groaning. "Shit, the kids will be back soon," Mark muttered. "We've been careless. This should have been in the bedroom."