Relative Pleasures
Copyright© 2026 by Obscene Vices
Chapter 3: Kissing Cousins
Incest Sex Story: Chapter 3: Kissing Cousins - In the Davidsons' perfect suburban life, Jenny and her sister Mandy have been secret lovers since teens, sharing boyfriends and now their husbands. One night, with the kids supposedly out, the adults start an orgy in the living room. John and Emma return early from a busted party, witness the incestuous scene, and sneak upstairs. Shocked but aroused, they confess desires and have sex, fantasizing about joining the family depravity. No one is safe from the family taboo.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Fa/Fa Consensual Lesbian Heterosexual Fiction Sharing Slut Wife Wife Watching Incest Mother Son Brother Sister Father Daughter Cousins Uncle Niece Aunt Nephew InLaws Gang Bang Group Sex Orgy Anal Sex Analingus Double Penetration First Facial Masturbation Oral Sex Sex Toys Voyeurism
Emma eased her electric car out of the school lot with Abby sitting beside her, knees pressed tight. Abby and Emma went to the same high school and were in the same grade. Normally, Abby would go home by bus, but today she was going to Emma’s house. Emma wore the same sheer pink crop top from yesterday—no bra, nipples faintly visible—and denim shorts that barely covered her ass. The memory of her brother’s cock in her pussy and her father’s cock in her mouth still warmed her tongue. She felt no guilt, only a delicious, secret glow.
The tension was electric—Abby’s imagination had been running wild since Emma’s call last night, her panties constantly damp with the knowledge that her straight-laced parents and aunt and uncle were secret swingers fucking their own siblings, that Emma had sucked her father’s cock and let her brother fuck her, and now ... now she was going to join this twisted, perfect dance.
Emma glanced over. Abby’s cheeks were flushed, her breath shallow. “Hey,” Emma said softly, reaching across the console to rest a hand on Abby’s bare knee. “You ok?”
Abby gave a tiny, nervous laugh. “I still can’t believe what you told me last night. Our parents ... your mom and my mom ... and you and John...” She still couldn’t believe her cousin had talked her into this.
Emma’s thumb traced slow circles on Abby’s skin. “I know it’s a lot. But you’re safe with me, okay? Nothing happens you don’t want. We’ll go slow.” She let her hand slide an inch higher, just under the skirt’s edge, not pushing, only promising. “You’ve wanted John for years. I see it every time he’s around. And after what we saw ... it feels right, doesn’t it? Are you turned on?”
Abby swallowed. “It feels insane. And ... God, yes. I’m so wet I can’t think.”
Emma smiled, warm and reassuring. “That’s the fun part. Let’s get you home and comfortable.”
They pulled into the driveway, and Emma switched off the car, turning fully to Abby. “Deep breath,” she murmured, cupping Abby’s cheek. “We’re just three cousins who love each other. Nothing scary.” She leaned in and brushed her lips over Abby’s—soft, lingering, and tasting of strawberry lip gloss. Abby sighed into it, shoulders loosening.
Jenny was in the living room, and she smiled warmly when she saw her niece along with Emma. Abby’s eyes now traced the fullness of her aunt’s lips—lips that had eaten out her own sister—and lingered on the deep V of her blouse. “Abby! How was school, sweetheart?” Jenny asked, brushing a strand of hair behind her ear.
Abby was mesmerized looking at her aunt. “F-Fine, Aunt Jenny,” Abby stammered, her voice higher than usual as she fought the urge to picture her aunt naked on her knees, sucking someone’s cock.
Emma got Abby out of her reverie by grabbing her hand. “We’re gonna study in my room,” she announced, pulling her cousin upstairs before Jenny could respond, their footsteps light and quick as they darted into Emma’s bedroom and shut the door behind them.
“Sit,” she said, guiding her to the edge of the bed. She knelt, slipping Abby’s sneakers off, then her own. “Breathe, Abs. Just breathe.”
Emma knelt in front of her, taking both of her hands. “Look at me.” She waited until Abby’s frightened eyes met hers. “What our parents do ... It’s a kind of love. A hungry, real love. And what we feel ... It’s just as real.” She leaned forward and brushed her lips against Abby’s, a feather-light touch meant to comfort. “We don’t have to be afraid of it.”
The kiss deepened slowly, not with frantic hunger, but with an exploring tenderness. Emma’s tongue traced the seam of Abby’s lips until they parted, and she tasted the faint hint of cherry lip balm. Her hands came up to cup Abby’s face, thumbs stroking her cheeks as she kissed her with a soothing, possessive gentleness.
Abby felt the kiss all over her body. Her lips parted to allow her cousin’s tongue to snake inside her mouth, coaxing Abby’s tongue to respond. And she did, as she kissed Emma back with a need that was mixed with the taboo nature of the kiss.
“You’re so beautiful, Abby,” Emma murmured against her mouth, her hands moving to the hem of Abby’s blouse. “So much like your mom.” She lifted the top over Abby’s head, then unfastened her bra, letting her small, perfect breasts spill free. Emma leaned down, taking a pink nipple into her mouth, sucking gently, her tongue circling the hardening peak until Abby gasped and arched her back.
“Oh, Emma...”
“Shhh, I’ve got you,” Emma whispered, laying her back on the bed. She kissed a trail down Abby’s stomach, unhooking her skirt and pulling it down along with her panties. She looked at her naked cousin and saw Abby staring back at her.
“Beautiful,” Emma whispered
She spread Abby’s legs, kissing the inside of her thighs, feeling the muscle quiver under her lips. Abby was thoroughly wet, her scent filling the air, sweet and nervous.
Emma dove in, her tongue becoming a relentless, worshipful instrument. She licked and suckled, describing the scene from the living room in a low, hypnotic murmur between strokes of her tongue. “I saw my dad’s cock sliding into your mom ... she was so wet for him, screaming his name ... And your mom, with her tongue in my mom’s mouth ... doesn’t that make you hot, Abby? Knowing how much they want each other? How much they could want us?”
Abby could only moan in response, her hips bucking off the bed, her mind dissolving into a kaleidoscope of images—her mother’s ecstatic face, Uncle Mark’s thrusting hips, and now the exquisite feel of her cousin’s mouth on her vagina. Emma curled two fingers inside her, pumping slowly as she focused her mouth on Abby’s clit.
“Are you ready for John?” Emma asked, her voice thick with her own arousal. “He’s wanted you for so long.”
Abby, mindless with pleasure, could only nod frantically.
Emma smiled, pulling away and grabbing her phone. She typed a quick text while Abby lay panting on the bed, exposed and glistening.
Emma: Now. She’s ready.
The door from the connecting bathroom opened a moment later. John stood there, shirtless, wearing only a pair of grey sweatpants that did little to conceal his impressive erection. His eyes went straight to Abby, sprawled on his sister’s bed, her body flushed and open. Abby’s gaze locked on him—hunger, shyness, disbelief.
Emma rose, grinning. “Look who’s here.” She crossed to John, kissed him slow and deep, then turned to Abby. “She’s always had the biggest crush on you,” she told him. She turned to Abby. “And he’s all yours, Abs. Just like you’ve always dreamed.”
Emma guided them together, placing a hand on each of their backs. “Kiss her, John.”
He knelt on the bed, cupped Abby’s face, and kissed her—tender at first, then hungry, tongues sliding. Abby melted, hands rising to his bare chest. Emma watched, heart racing, then leaned in, turning it into a three-way kiss—lips, tongues, and soft moans mingling. It was a swirling, three-way exchange of breath and tongue, a tasting of family secrets. John’s hands found Abby’s breasts, his thumbs rubbing over her nipples as he kissed her with a growing hunger.
Emma, grinning with wicked delight, knelt and slowly pulled John’s sweatpants down. His cock sprang free, thick and straining. She looked up at Abby. “Want to try?” she asked playfully. Abby’s eyes widened. Emma wrapped her fingers around him, stroking once, twice, then sank to her knees.
Before Abby could answer, Emma took John into her mouth, demonstrating, her lips sliding down his length with a practiced ease that made Abby’s stomach clench with envy and desire. After a few deep sucks, Emma guided Abby’s head down. “Go on. Taste your cousin.”
Timidly, Abby leaned in, her tongue flicking out to taste the salty pre-cum beaded at the tip. “Fuck, John, you’re so big,” she whispered. Emboldened by Emma’s encouraging murmur and John’s sharp intake of breath, she opened her mouth and took him in. Emma guided her, whispering instructions. “Use your tongue on that vein ... yes, like that ... now deeper, relax your throat...” Abby followed her instructions. “Suck him,” Emma said encouragingly, nipping at her earlobe. “Put that pretty little mouth to use like I did to Dad yesterday.” This caused Abby to moan around John’s cock.
Soon, they were taking turns, a dual-mouthed worship of John’s cock, while their hands roamed over each other’s bodies. John was moaning uncontrollably, his hands tangled in both their hair. “Oh god ... Abby ... Emma ... fuck...”
Emma finally pulled away, her eyes sparkling. “I think she’s ready for more, don’t you?” She pushed John onto his back and positioned Abby over him. “Go on, Abs. Take him. He’s all yours.”
With Emma guiding his cock, Abby slowly lowered herself onto John, gasping as he filled her completely. She began to move, tentatively at first, then with more confidence as the pleasure built. Emma knelt beside them, alternating between kissing Abby’s lips and John’s, whispering filthy encouragement.
“That’s it, fuck our cousin, John ... Look how beautiful she is on your cock ... Just like our moms ... We’re a family that fucks, Abby. Isn’t it perfect?”
John and Abby moaned, and Abby fell on John, kissing him as he kept thrusting his cock in her wet pussy. The squelching noise was only interrupted by Emma saying, “You both look so fucking hot.”
After fucking some more, Abby got off John and went on all fours. Emma lay beneath her, pulling Abby’s face down to her own dripping pussy. “Taste me, Abs,” Emma moaned. “Make me cum. Do what your mom does to my mom.”
Abby had never tasted pussy, but she didn’t want to lose this chance. Abby buried her face between Emma’s thighs, mimicking what John had done to her, her tongue exploring the slippery folds as John positioned his cock again at her pussy. He drove into her from behind, causing her to whimper and insert her tongue further in Emma’s pussy. She kept licking Emma and put her thumb on Emma’s clit. The sensation of being filled and filling someone else at the same time sent her over the edge. She came with a muffled scream against Emma’s pussy, her body trembling, as her pussy disengaged from John’s cock with an audible pop.