The Davidsons appear to be the perfect suburban family—loving parents, bright children, a home that radiates warmth and normalcy. But beneath the façade lies a secret world of unbridled desire, where the bonds of blood are twisted into something far more primal.
When siblings John and Julia accidentally witness their parents entangled in a steamy foursome with their uncle and aunt, they’re plunged into a storm of shock and awakening lust. What starts as scandalous curiosity soon consumes them—their bodies craving what should be forbidden, their hearts racing with the thrill of corruption. And they’re not alone.
Soon, the taboo spreads. Cousins become lovers. Friends become playthings. A network of secrets and shared pleasure grows, drawing in everyone they thought they knew—until the line between family and fantasy dissolves entirely.
Passion is thicker than blood.
And no one is safe from temptation.
Relative Pleasures is a scorching saga of lust, betrayal, and the lengths we’ll go to chase the ultimate sin.
Note: All Characters 18+
The Davidson household always appeared picture-perfect from the outside—a well-kept suburban home with a manicured lawn, Mark and Olive hosting barbecues where they laughed with neighbors, their two kids, John and Julia, the epitome of polite, well-raised teenagers. No one would ever suspect the depravity that simmered beneath the surface.
Olive Davidson, the elegant, church-going mother who volunteered at bake sales, had a secret. A filthy, insatiable hunger that only her sister Mary could truly satisfy. The two had been lovers since their teenage years, experimenting with each other’s bodies long before they ever touched a man. They had shared boyfriends, orchestrated threesomes, and even arranged for their eventual husbands—Mark and Bob—to swap with them before marriage. Now, years later, the four of them still indulged in their twisted little arrangement, fucking each other with the kind of reckless abandon that would scandalize their conservative community if they ever found out.
Tonight was one of those nights.
With John and Julia supposedly out at a party, Olive and Mark had invited Mary and Bob over for a night of debauchery. The living room was a mess of discarded clothes, the air thick with the scent of sweat and sex. Olive was on her knees, her lips stretched obscenely around Bob’s thick cock, her tongue swirling around the head before taking him deep into her throat. Mary, ever the eager participant, was knelt behind her sister, face buried between Olive’s spread thighs, her tongue lapping at her dripping cunt with loud, wet strokes. And Mark—good, dependable Mark—was fucking Mary from behind, his hips slapping against her ass as she moaned around Olive’s pussy.
“Fuck, Olive, your sister sucks cock almost as good as you do,” Bob groaned, his fingers tightening in her blonde hair.
Olive pulled off with a lewd pop, her lips glistening. “Don’t flatter her too much,” she purred, glancing back at Mary. “She gets cocky.”
Mary lifted her head just long enough to smirk. “You’re just jealous because Mark’s fucking me harder than he fucks you.”
Mark chuckled darkly, gripping Mary’s hips and driving into her deeper, making her gasp. “You like that, Mary? Taking your brother-in-law’s cock like a whore?”
“God, yes,” Mary moaned, her fingers digging into Olive’s thighs. “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 Julia had been running late to the party, only to find it already busted by the cops. Disappointed, they’d headed home early, expecting to find the house empty. Instead, the sounds of moans and skin slapping against skin greeted them the moment they stepped inside.
Julia froze, her eyes widening as she took in the scene in the living room. “Oh my God,” she whispered, her voice barely audible. John gasped.
Their mother Olive, the poised and proper woman who scolded them for cursing at the dinner table, was now bent over the couch with her breasts swinging wildly, her thighs slick with arousal as Uncle Bob drove into her from behind, his thick cock glistening with her juices. Beside them, Aunt Mary straddled their father Mark’s face, riding his tongue with abandon while his fingers worked between her legs, her own hands tangled in Olive’s hair as she pulled her sister into a deep, sinful kiss. The room reeked of sex, sweat dripping from slick bodies as they moved together in a rhythm of absolute debauchery—a side of their parents neither sibling had ever imagined.
Julia’s fingers curled into his arm, her nails digging in. “We shouldn’t be watching this,” she breathed, but she didn’t move.
John couldn’t tear his eyes away. “Fuck,” he muttered, his voice rough.
Julia clutched John’s arm, her nails digging in painfully, but neither could look away. John’s breath came in ragged gasps, his cock straining against his jeans at the raw display before them. Julia’s pulse thundered in her ears, her panties soaked as she watched her prim mother whimper Uncle Bob’s name like a common slut, her lips swollen from sucking his cock. The adults were so lost in their depravity that they didn’t notice their children slipping away, their shocked silence swallowed by the symphony of filth behind them.
Once safe inside John’s room, the door locked behind them, Julia collapsed onto his bed while John paced, running trembling hands through his hair. "Fuck. Fuck. Did—did you see them?" he rasped, his voice hoarse with disbelief.
Julia nodded jerkily, her legs weak beneath her. "Mom… she was…" She swallowed hard, unable to articulate the image of their mother taking Uncle Bob’s cock like a woman starved.
John stopped pacing, staring at Julia with wild eyes. "And Dad—fucking _Aunt Mary_ while she ate Mom out." His throat worked around the words, his cock twitching against his thigh. "They've—they've _done this_ before. They must have."
Julia’s body burned, her chest rising and falling rapidly as arousal coiled deep in her belly. The way Mom moaned, the way Aunt Mary whispered filthy things as Dad gripped her—she had never seen adults act like that, so hungry, so shameless. Slowly, she lifted her gaze to meet John’s, and the feverish understanding there made her breath catch.
"We shouldn’t even be thinking about this," John muttered, though his voice lacked conviction.
Julia bit her lip. "But we are."The confession hung between them, thick and damning. Silence stretched, punctuated only by their shuddering breaths, before Julia crawled across the bed toward her brother. "Have you—have you ever wanted me?" she whispered, the words slipping out like a secret too heavy to keep.
John shuddered. Honesty warred with denial, but arousal won. "...Yes." His voice was rough, laced with guilt. "God help me, Julia, I have."
Julia exhaled, warmth rushing through her. Confession spilled out of her, too. "Me too. Especially—especially after I saw you with Sarah Thompson last summer."
John’s eyes darkened. "You watched?"
Julia nodded, her cheeks flushing. "Through your bedroom window. You fucked her so hard she screamed. I touched myself imagining it was me."
A groan tore from John’s throat, and suddenly the distance between them evaporated. He was on her in seconds, his hands cradling her face as their lips crashed together in a fierce, desperate kiss. Julia whimpered into his mouth, her fingers twisting in his shirt as he licked into her, tasting her hunger. They broke apart panting, foreheads pressed together.
"We shouldn’t," John murmured, but his hands were already sliding under Julia’s top, tracing the soft skin of her waist.
Julia arched into his touch. "But we want to."
And that was all it took.
John kissed her again, slower this time, savoring the heat of her mouth as his thumb grazed the swell of her breast. Julia gasped, her fingers trembling as she undid his jeans, freeing his hard cock—long, thick, already leaking for her. "I’ve dreamed about this," she admitted, stroking him slowly as John groaned.
John pushed her back against the pillows, his hands skimming up her thighs before hooking into her panties and pulling them off. "Fuck, Julia," he breathed, staring at her glistening folds. "You’re so wet."
"Because of you," she confessed, spreading her legs wider.
He didn’t hesitate. John buried his face between her thighs, licking into her with slow, deliberate strokes, his tongue circling her clit before plunging deep inside her, drinking her down like a man starved. Julia cried out, her back bowing off the bed as pleasure surged through her, her fingers clutching his hair.
"John—God—your mouth—!"
He growled against her skin, his fingers joining his tongue, curling inside her as he sucked her clit harder. Julia shattered, her orgasm crashing over her in waves, her thighs trembling around her brother’s head as he licked her through it, coaxing every last drop of pleasure from her shaking body.
When she finally stilled, boneless and panting, John crawled up her body, his cock heavy against her thigh. Julia reached for him, her mouth closing around him in one smooth motion, her tongue swirling around his length. John cursed, his hips jerking as she deepthroated him the way she’d seen Mom do to Uncle Bob—slutty, hungry, eager to please.
"Fuck," he hissed, thrusting shallowly into her mouth. "Just like that, Julie—suck me like Mom was sucking Uncle Bob."
The depraved comparison sent another rush of heat through Julia’s veins, her moan vibrating around him as she took him deeper. She could taste the salt of his skin, feel the way his muscles trembled as he fought to hold back.
And then he pulled away, pinning her back to the mattress. Slowly, agonizingly, John aligned himself with her dripping entrance. "Are you sure?" he asked, his voice strained.
Julia answered by wrapping her legs around his waist and pulling him in.
He sank into her inch by torturous inch, their breath mingling in ragged gasps as their bodies joined for the first time. "Fuck," John gritted out, his fingers biting into her hips. "You’re so tight."
Julia clung to him, her nails scoring his back as she adjusted to the stretch. "Move," she begged, arching against him. "Make love to me, John. Like you've wanted to."
And he did—slow at first, savoring each drag of his cock inside her, their kisses tender between whispered confessions of longing. But soon, the heat between them built, their thrusts growing harder, faster, their moans louder.
"Tell me," John demanded, sinking deep, watching the way her breasts bounced with each snap of his hips. "Tell me how much you love your brother’s cock."
Julia keened, her body tightening around him. "I love it," she gasped. "Love how you fill me—love that it’s wrong—love you—"
John fucked her through another climax, her cunt clenching around him in waves until he couldn’t hold back anymore. With a groan, he spilled inside her, his hips stuttering as he came harder than he ever had before filling up his sister’s pussy with his spend.
Collapsing onto her, spent and shaking, he pressed shaky kisses to her throat. Julia ran her fingers through his hair, their breathing gradually slowing.
The silence between them was thick, heavy like the scent of sex still clinging to their skin. Julia traced idle circles on John’s chest, her nails dragging softly before she finally whispered, "They do it all the time, don’t they? Not just fucking random people—but Mom and Dad. With Aunt Mary and Uncle Bob. Their own family."
John inhaled sharply, his pulse jumping under her fingertips. "Yeah. You saw them. Christ, the way they moved together—like they’ve been doing it for years." His voice dropped lower, rougher. "The way Mom moaned when Bob fucked her. How she kissed Aunt Mary—like they were lovers, not sisters. Did you see how deep their tongues went?"
Julia shuddered, her thighs pressing together at the memory. "They were so into it. Like—like they got off on the fact 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 destroyed her. And Dad... Jesus, the way he talked to Aunt Mary. 'Tighter than my wife,' he said." His fingers dug into her skin. "You think they ever fucked like that in front of us when we were kids? While we were in the other room?"
Julia’s breath hitched. "God, I hope so." She rolled on top of him, straddling his hips, her skin fever-warm. "I hope they knew we could hear. Hope they got off on it."
John groaned as she ground down on his hardening cock. "Fuck, Julie—we’re just like them."
"Yeah," she breathed. "And we’re gonna get worse.". Then she looked at him, her eyes gleaming with something dark and hungry. "What if we joined them?"
John’s cock twitched against her thigh. "Fuck."
Julia grinned, rolling on top of him, her hips grinding down on his already hardening length. "Think Daddy would want me the way Uncle Bob wants Mom?"
John groaned, gripping her waist as she sank onto him again. "Jesus Christ, Julie—"
She leaned down, her lips brushing his ear. "Let’s find out."
Julia rose up on her knees, her body glistening with sweat in the dim bedroom light, and slowly lowered herself onto John's throbbing cock with a sinful sigh. "Mmm, just like Dad fucks Aunt Mary, huh?" she purred, rolling her hips in slow, deliberate circles that made John's jaw clench.
His hands gripped her thighs hard enough to leave marks as she rode him, her tits swaying with every bounce. "Fuck, Julie—the way you take me—"
"Like a good sister should," she moaned, throwing her head back before leaning forward, pressing her fingertips to his chest. "But Daddy won't know that, will he? When he's burying himself in me tomorrow, he'll just think I'm his sweet, innocent daughter."
John growled, thrusting up into her hard, making her gasp. "You gonna let him think that, you little slut? Or you gonna tell him how wet you get for your brother's cock first?"
Julia's breath came in ragged bursts as she met his thrusts, their skin slapping together obscenely. "Maybe... maybe I'll make him watch us. Maybe we'll show him how it should be done."
The thought made John shudder, his balls tightening. "Fuck, Julie—I'm gonna—"
Before he could finish, Julia suddenly lifted herself off him, her pussy dripping, and wrapped her lips around his shaft. With a few hard strokes of her hand, he erupted into her waiting mouth, his teeth clenched as she swallowed every last drop. She licked her lips with a wicked grin. "Practice makes perfect, right?"
John collapsed back, his chest heaving. "Tomorrow then? Are you sure?"
Julia climbed back up his body, her lips brushing his. "Tomorrow, Daddy learns what his little girl really wants."
Meanwhile in the living room:
The living room moans trembled through the walls as Mary sank to her knees beside Olive, their naked bodies pressed together in a slick tangle of limbs and lust. Olive's manicured fingers tangled in her sister's hair as she pulled her into a filthy open-mouthed kiss, tongues swirling between their painted lips.
"Look at you two fucking sluts," Bob growled, his thick cock glistening with precum as he watched the sisters paw at each other's breasts, fingers pinching and twisting hardened nipples.
Mary whimpered against Olive's mouth before breaking away with a gasp, her lips glistening with spit. "Mmm, I love how your tits feel against mine, sis," she murmured, licking a hot stripe up Olive's throat as she palmed her own curves.
Olive moaned, arching into the touch. "God, Mary, still so greedy with your hands after all these years." She reached between them, sliding a hand down her sister's toned stomach and swiping through her dripping folds. "You're so fucking wet. Been thinking about this all week?"
"Fuck yes," Mary panted, her hips bucking as Olive's fingers delved inside her. "Thinking about your pussy on my tongue while Mark fucks me from behind."
Mark groaned, gripping his shaft tightly at the visual. "Christ, you two are depraved."
Bob smirked, stroking himself lazily. "Ain't that why we married them?"
Laughing, Olive nudged Mary onto her back and crawled between her spread thighs. "Time for dessert, baby sister," she purred before licking a long, slow stripe through Mary's soaked folds.
Mary cried out, her back bowing off the floor as Olive devoured her, tongue lapping and flicking at her clit with expert precision. "Oh fuck! Right there, Olive! Just like that!"
Needing no further invitation, Mark positioned himself behind Mary and thrust deep, making both sisters moan in unison. "Damn, you're tight," he grunted, hips snapping hard enough to jostle Olive where she feasted below.
Bob knelt beside them, stroking Olive's hair as she sucked on Mary's clit. "My turn, baby."
Olive lifted her mouth from Mary's pussy, lips glossy, and turned to take Bob's cock between them with a filthy moan. "Mmm, always so thick for me," she murmured before swallowing him down, her cheeks hollowing with the strength of her suction. The obscene wet sounds filled the room as she bobbed eagerly, one hand still between Mary's thighs, fingers pumping in and out.
The sisters lost themselves in the debauchery—Olive alternating between slurping Bob's length and darting her tongue against Mary's clit, while Mary whined and writhed beneath Mark's relentless fucking.
"Gonna cum, gonna fucking cum!" Mary gasped, her inner walls clenching around Mark's cock as she shattered, juices flooding Olive's fingers.
Bob cursed, pulling from Olive's mouth just in time to spurt hot ropes across her face as she eagerly stuck out her tongue to catch every drop.
Mark wasn't far behind, withdrawing with a groan to paint Mary's tits and stomach with his release.
Panting, Olive collapsed next to Mary, both of them grinning as they turned to each other. Mary leaned in, licking a stripe up Olive's cheek to collect a streak of Bob's cum still glistening there. "Mmm, you taste so good like this," she murmured before sealing their lips together in a slow, dirty kiss, tongues mingling as they shared the spoils of their pleasure.
Bob and Mark watched, still catching their breaths as the sisters giggled, scooping stray droplets from their skin and bringing them to each other's mouths with teasing licks.
"You two are disgusting," Mark said, laughter in his voice as he wiped himself clean.
Mary beamed, stretching like a satisfied cat. "You love it."
Olive sighed, leaning her head against Bob's thigh as he absently stroked her hair. "We should do this more often."
A glance at the clock had them all groaning. "Shit, the kids will be back soon," Bob muttered.
The four of them moved drowsily, sharing lazy kisses as they redressed. "Same time next week?" Mary teased, smirking as she adjusted her bra.
Mark slapped her ass playfully. "We'll let you know. Depends on the kids' schedules."
Laughing, the Brands gathered their things and slipped out into the night, leaving Mark and Olive smiling in the doorway, pleasantly exhausted and already craving the next time.
----------
Characters:
The Davidson Family
Mark Davidson (46) - Married to Olive, father to John & Julia
Olive Davidson (44) - Wife to Mark, mother to John & Julia, Mary's sister/lover
John Davidson (20) - Son of Mark & Olive, Julia’s older brother/lover
Julia Davidson (19) - Daughter of Mark & Olive, younger sister/lover to John
The Brands:
Bob Brand (48) - Husband to Mary, father to Abby/Tom/Alexa
Mary Brand (43) - Wife to Bob, mother to Abby/Tom/Alexa, Olive’s sister/lover
Tom Brand (20) - Son of Bob/Mary, Alexa’s twin and Abby's elder brother
Alexa Brand (20) - Daughter of Bob/Mary, Tom’s twin and Abby's elder sister
Abby Brand (18) - Daughter of Bob/Mary, John & Julia’s cousin younger sister to Tom/Alexa. She looks exactly like young Mary
When siblings John and Julia accidentally witness their parents entangled in a steamy foursome with their uncle and aunt, they’re plunged into a storm of shock and awakening lust. What starts as scandalous curiosity soon consumes them—their bodies craving what should be forbidden, their hearts racing with the thrill of corruption. And they’re not alone.
Soon, the taboo spreads. Cousins become lovers. Friends become playthings. A network of secrets and shared pleasure grows, drawing in everyone they thought they knew—until the line between family and fantasy dissolves entirely.
Passion is thicker than blood.
And no one is safe from temptation.
Relative Pleasures is a scorching saga of lust, betrayal, and the lengths we’ll go to chase the ultimate sin.
Note: All Characters 18+
The Davidson household always appeared picture-perfect from the outside—a well-kept suburban home with a manicured lawn, Mark and Olive hosting barbecues where they laughed with neighbors, their two kids, John and Julia, the epitome of polite, well-raised teenagers. No one would ever suspect the depravity that simmered beneath the surface.
Olive Davidson, the elegant, church-going mother who volunteered at bake sales, had a secret. A filthy, insatiable hunger that only her sister Mary could truly satisfy. The two had been lovers since their teenage years, experimenting with each other’s bodies long before they ever touched a man. They had shared boyfriends, orchestrated threesomes, and even arranged for their eventual husbands—Mark and Bob—to swap with them before marriage. Now, years later, the four of them still indulged in their twisted little arrangement, fucking each other with the kind of reckless abandon that would scandalize their conservative community if they ever found out.
Tonight was one of those nights.
With John and Julia supposedly out at a party, Olive and Mark had invited Mary and Bob over for a night of debauchery. The living room was a mess of discarded clothes, the air thick with the scent of sweat and sex. Olive was on her knees, her lips stretched obscenely around Bob’s thick cock, her tongue swirling around the head before taking him deep into her throat. Mary, ever the eager participant, was knelt behind her sister, face buried between Olive’s spread thighs, her tongue lapping at her dripping cunt with loud, wet strokes. And Mark—good, dependable Mark—was fucking Mary from behind, his hips slapping against her ass as she moaned around Olive’s pussy.
“Fuck, Olive, your sister sucks cock almost as good as you do,” Bob groaned, his fingers tightening in her blonde hair.
Olive pulled off with a lewd pop, her lips glistening. “Don’t flatter her too much,” she purred, glancing back at Mary. “She gets cocky.”
Mary lifted her head just long enough to smirk. “You’re just jealous because Mark’s fucking me harder than he fucks you.”
Mark chuckled darkly, gripping Mary’s hips and driving into her deeper, making her gasp. “You like that, Mary? Taking your brother-in-law’s cock like a whore?”
“God, yes,” Mary moaned, her fingers digging into Olive’s thighs. “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 Julia had been running late to the party, only to find it already busted by the cops. Disappointed, they’d headed home early, expecting to find the house empty. Instead, the sounds of moans and skin slapping against skin greeted them the moment they stepped inside.
Julia froze, her eyes widening as she took in the scene in the living room. “Oh my God,” she whispered, her voice barely audible. John gasped.
Their mother Olive, the poised and proper woman who scolded them for cursing at the dinner table, was now bent over the couch with her breasts swinging wildly, her thighs slick with arousal as Uncle Bob drove into her from behind, his thick cock glistening with her juices. Beside them, Aunt Mary straddled their father Mark’s face, riding his tongue with abandon while his fingers worked between her legs, her own hands tangled in Olive’s hair as she pulled her sister into a deep, sinful kiss. The room reeked of sex, sweat dripping from slick bodies as they moved together in a rhythm of absolute debauchery—a side of their parents neither sibling had ever imagined.
Julia’s fingers curled into his arm, her nails digging in. “We shouldn’t be watching this,” she breathed, but she didn’t move.
John couldn’t tear his eyes away. “Fuck,” he muttered, his voice rough.
Julia clutched John’s arm, her nails digging in painfully, but neither could look away. John’s breath came in ragged gasps, his cock straining against his jeans at the raw display before them. Julia’s pulse thundered in her ears, her panties soaked as she watched her prim mother whimper Uncle Bob’s name like a common slut, her lips swollen from sucking his cock. The adults were so lost in their depravity that they didn’t notice their children slipping away, their shocked silence swallowed by the symphony of filth behind them.
Once safe inside John’s room, the door locked behind them, Julia collapsed onto his bed while John paced, running trembling hands through his hair. "Fuck. Fuck. Did—did you see them?" he rasped, his voice hoarse with disbelief.
Julia nodded jerkily, her legs weak beneath her. "Mom… she was…" She swallowed hard, unable to articulate the image of their mother taking Uncle Bob’s cock like a woman starved.
John stopped pacing, staring at Julia with wild eyes. "And Dad—fucking _Aunt Mary_ while she ate Mom out." His throat worked around the words, his cock twitching against his thigh. "They've—they've _done this_ before. They must have."
Julia’s body burned, her chest rising and falling rapidly as arousal coiled deep in her belly. The way Mom moaned, the way Aunt Mary whispered filthy things as Dad gripped her—she had never seen adults act like that, so hungry, so shameless. Slowly, she lifted her gaze to meet John’s, and the feverish understanding there made her breath catch.
"We shouldn’t even be thinking about this," John muttered, though his voice lacked conviction.
Julia bit her lip. "But we are."The confession hung between them, thick and damning. Silence stretched, punctuated only by their shuddering breaths, before Julia crawled across the bed toward her brother. "Have you—have you ever wanted me?" she whispered, the words slipping out like a secret too heavy to keep.
John shuddered. Honesty warred with denial, but arousal won. "...Yes." His voice was rough, laced with guilt. "God help me, Julia, I have."
Julia exhaled, warmth rushing through her. Confession spilled out of her, too. "Me too. Especially—especially after I saw you with Sarah Thompson last summer."
John’s eyes darkened. "You watched?"
Julia nodded, her cheeks flushing. "Through your bedroom window. You fucked her so hard she screamed. I touched myself imagining it was me."
A groan tore from John’s throat, and suddenly the distance between them evaporated. He was on her in seconds, his hands cradling her face as their lips crashed together in a fierce, desperate kiss. Julia whimpered into his mouth, her fingers twisting in his shirt as he licked into her, tasting her hunger. They broke apart panting, foreheads pressed together.
"We shouldn’t," John murmured, but his hands were already sliding under Julia’s top, tracing the soft skin of her waist.
Julia arched into his touch. "But we want to."
And that was all it took.
John kissed her again, slower this time, savoring the heat of her mouth as his thumb grazed the swell of her breast. Julia gasped, her fingers trembling as she undid his jeans, freeing his hard cock—long, thick, already leaking for her. "I’ve dreamed about this," she admitted, stroking him slowly as John groaned.
John pushed her back against the pillows, his hands skimming up her thighs before hooking into her panties and pulling them off. "Fuck, Julia," he breathed, staring at her glistening folds. "You’re so wet."
"Because of you," she confessed, spreading her legs wider.
He didn’t hesitate. John buried his face between her thighs, licking into her with slow, deliberate strokes, his tongue circling her clit before plunging deep inside her, drinking her down like a man starved. Julia cried out, her back bowing off the bed as pleasure surged through her, her fingers clutching his hair.
"John—God—your mouth—!"
He growled against her skin, his fingers joining his tongue, curling inside her as he sucked her clit harder. Julia shattered, her orgasm crashing over her in waves, her thighs trembling around her brother’s head as he licked her through it, coaxing every last drop of pleasure from her shaking body.
When she finally stilled, boneless and panting, John crawled up her body, his cock heavy against her thigh. Julia reached for him, her mouth closing around him in one smooth motion, her tongue swirling around his length. John cursed, his hips jerking as she deepthroated him the way she’d seen Mom do to Uncle Bob—slutty, hungry, eager to please.
"Fuck," he hissed, thrusting shallowly into her mouth. "Just like that, Julie—suck me like Mom was sucking Uncle Bob."
The depraved comparison sent another rush of heat through Julia’s veins, her moan vibrating around him as she took him deeper. She could taste the salt of his skin, feel the way his muscles trembled as he fought to hold back.
And then he pulled away, pinning her back to the mattress. Slowly, agonizingly, John aligned himself with her dripping entrance. "Are you sure?" he asked, his voice strained.
Julia answered by wrapping her legs around his waist and pulling him in.
He sank into her inch by torturous inch, their breath mingling in ragged gasps as their bodies joined for the first time. "Fuck," John gritted out, his fingers biting into her hips. "You’re so tight."
Julia clung to him, her nails scoring his back as she adjusted to the stretch. "Move," she begged, arching against him. "Make love to me, John. Like you've wanted to."
And he did—slow at first, savoring each drag of his cock inside her, their kisses tender between whispered confessions of longing. But soon, the heat between them built, their thrusts growing harder, faster, their moans louder.
"Tell me," John demanded, sinking deep, watching the way her breasts bounced with each snap of his hips. "Tell me how much you love your brother’s cock."
Julia keened, her body tightening around him. "I love it," she gasped. "Love how you fill me—love that it’s wrong—love you—"
John fucked her through another climax, her cunt clenching around him in waves until he couldn’t hold back anymore. With a groan, he spilled inside her, his hips stuttering as he came harder than he ever had before filling up his sister’s pussy with his spend.
Collapsing onto her, spent and shaking, he pressed shaky kisses to her throat. Julia ran her fingers through his hair, their breathing gradually slowing.
The silence between them was thick, heavy like the scent of sex still clinging to their skin. Julia traced idle circles on John’s chest, her nails dragging softly before she finally whispered, "They do it all the time, don’t they? Not just fucking random people—but Mom and Dad. With Aunt Mary and Uncle Bob. Their own family."
John inhaled sharply, his pulse jumping under her fingertips. "Yeah. You saw them. Christ, the way they moved together—like they’ve been doing it for years." His voice dropped lower, rougher. "The way Mom moaned when Bob fucked her. How she kissed Aunt Mary—like they were lovers, not sisters. Did you see how deep their tongues went?"
Julia shuddered, her thighs pressing together at the memory. "They were so into it. Like—like they got off on the fact 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 destroyed her. And Dad... Jesus, the way he talked to Aunt Mary. 'Tighter than my wife,' he said." His fingers dug into her skin. "You think they ever fucked like that in front of us when we were kids? While we were in the other room?"
Julia’s breath hitched. "God, I hope so." She rolled on top of him, straddling his hips, her skin fever-warm. "I hope they knew we could hear. Hope they got off on it."
John groaned as she ground down on his hardening cock. "Fuck, Julie—we’re just like them."
"Yeah," she breathed. "And we’re gonna get worse.". Then she looked at him, her eyes gleaming with something dark and hungry. "What if we joined them?"
John’s cock twitched against her thigh. "Fuck."
Julia grinned, rolling on top of him, her hips grinding down on his already hardening length. "Think Daddy would want me the way Uncle Bob wants Mom?"
John groaned, gripping her waist as she sank onto him again. "Jesus Christ, Julie—"
She leaned down, her lips brushing his ear. "Let’s find out."
Julia rose up on her knees, her body glistening with sweat in the dim bedroom light, and slowly lowered herself onto John's throbbing cock with a sinful sigh. "Mmm, just like Dad fucks Aunt Mary, huh?" she purred, rolling her hips in slow, deliberate circles that made John's jaw clench.
His hands gripped her thighs hard enough to leave marks as she rode him, her tits swaying with every bounce. "Fuck, Julie—the way you take me—"
"Like a good sister should," she moaned, throwing her head back before leaning forward, pressing her fingertips to his chest. "But Daddy won't know that, will he? When he's burying himself in me tomorrow, he'll just think I'm his sweet, innocent daughter."
John growled, thrusting up into her hard, making her gasp. "You gonna let him think that, you little slut? Or you gonna tell him how wet you get for your brother's cock first?"
Julia's breath came in ragged bursts as she met his thrusts, their skin slapping together obscenely. "Maybe... maybe I'll make him watch us. Maybe we'll show him how it should be done."
The thought made John shudder, his balls tightening. "Fuck, Julie—I'm gonna—"
Before he could finish, Julia suddenly lifted herself off him, her pussy dripping, and wrapped her lips around his shaft. With a few hard strokes of her hand, he erupted into her waiting mouth, his teeth clenched as she swallowed every last drop. She licked her lips with a wicked grin. "Practice makes perfect, right?"
John collapsed back, his chest heaving. "Tomorrow then? Are you sure?"
Julia climbed back up his body, her lips brushing his. "Tomorrow, Daddy learns what his little girl really wants."
Meanwhile in the living room:
The living room moans trembled through the walls as Mary sank to her knees beside Olive, their naked bodies pressed together in a slick tangle of limbs and lust. Olive's manicured fingers tangled in her sister's hair as she pulled her into a filthy open-mouthed kiss, tongues swirling between their painted lips.
"Look at you two fucking sluts," Bob growled, his thick cock glistening with precum as he watched the sisters paw at each other's breasts, fingers pinching and twisting hardened nipples.
Mary whimpered against Olive's mouth before breaking away with a gasp, her lips glistening with spit. "Mmm, I love how your tits feel against mine, sis," she murmured, licking a hot stripe up Olive's throat as she palmed her own curves.
Olive moaned, arching into the touch. "God, Mary, still so greedy with your hands after all these years." She reached between them, sliding a hand down her sister's toned stomach and swiping through her dripping folds. "You're so fucking wet. Been thinking about this all week?"
"Fuck yes," Mary panted, her hips bucking as Olive's fingers delved inside her. "Thinking about your pussy on my tongue while Mark fucks me from behind."
Mark groaned, gripping his shaft tightly at the visual. "Christ, you two are depraved."
Bob smirked, stroking himself lazily. "Ain't that why we married them?"
Laughing, Olive nudged Mary onto her back and crawled between her spread thighs. "Time for dessert, baby sister," she purred before licking a long, slow stripe through Mary's soaked folds.
Mary cried out, her back bowing off the floor as Olive devoured her, tongue lapping and flicking at her clit with expert precision. "Oh fuck! Right there, Olive! Just like that!"
Needing no further invitation, Mark positioned himself behind Mary and thrust deep, making both sisters moan in unison. "Damn, you're tight," he grunted, hips snapping hard enough to jostle Olive where she feasted below.
Bob knelt beside them, stroking Olive's hair as she sucked on Mary's clit. "My turn, baby."
Olive lifted her mouth from Mary's pussy, lips glossy, and turned to take Bob's cock between them with a filthy moan. "Mmm, always so thick for me," she murmured before swallowing him down, her cheeks hollowing with the strength of her suction. The obscene wet sounds filled the room as she bobbed eagerly, one hand still between Mary's thighs, fingers pumping in and out.
The sisters lost themselves in the debauchery—Olive alternating between slurping Bob's length and darting her tongue against Mary's clit, while Mary whined and writhed beneath Mark's relentless fucking.
"Gonna cum, gonna fucking cum!" Mary gasped, her inner walls clenching around Mark's cock as she shattered, juices flooding Olive's fingers.
Bob cursed, pulling from Olive's mouth just in time to spurt hot ropes across her face as she eagerly stuck out her tongue to catch every drop.
Mark wasn't far behind, withdrawing with a groan to paint Mary's tits and stomach with his release.
Panting, Olive collapsed next to Mary, both of them grinning as they turned to each other. Mary leaned in, licking a stripe up Olive's cheek to collect a streak of Bob's cum still glistening there. "Mmm, you taste so good like this," she murmured before sealing their lips together in a slow, dirty kiss, tongues mingling as they shared the spoils of their pleasure.
Bob and Mark watched, still catching their breaths as the sisters giggled, scooping stray droplets from their skin and bringing them to each other's mouths with teasing licks.
"You two are disgusting," Mark said, laughter in his voice as he wiped himself clean.
Mary beamed, stretching like a satisfied cat. "You love it."
Olive sighed, leaning her head against Bob's thigh as he absently stroked her hair. "We should do this more often."
A glance at the clock had them all groaning. "Shit, the kids will be back soon," Bob muttered.
The four of them moved drowsily, sharing lazy kisses as they redressed. "Same time next week?" Mary teased, smirking as she adjusted her bra.
Mark slapped her ass playfully. "We'll let you know. Depends on the kids' schedules."
Laughing, the Brands gathered their things and slipped out into the night, leaving Mark and Olive smiling in the doorway, pleasantly exhausted and already craving the next time.
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Characters:
The Davidson Family
Mark Davidson (46) - Married to Olive, father to John & Julia
Olive Davidson (44) - Wife to Mark, mother to John & Julia, Mary's sister/lover
John Davidson (20) - Son of Mark & Olive, Julia’s older brother/lover
Julia Davidson (19) - Daughter of Mark & Olive, younger sister/lover to John
The Brands:
Bob Brand (48) - Husband to Mary, father to Abby/Tom/Alexa
Mary Brand (43) - Wife to Bob, mother to Abby/Tom/Alexa, Olive’s sister/lover
Tom Brand (20) - Son of Bob/Mary, Alexa’s twin and Abby's elder brother
Alexa Brand (20) - Daughter of Bob/Mary, Tom’s twin and Abby's elder sister
Abby Brand (18) - Daughter of Bob/Mary, John & Julia’s cousin younger sister to Tom/Alexa. She looks exactly like young Mary
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Chapter 1- Beneath the façade in Realtive Pleasures
by
ObsceneVices
· 10 Aug 2025
When John and Julia catch their parents in a debauched foursome with their aunt and uncle, the siblings' repressed desires ignite, leading them to cross their own forbidden line that night.
Note: All Characters 18+
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