Chapter 1 – Beneath The Facade 

Mark and Jenny Davidson loved their suburban home and family. They had worked hard and raised two well-mannered children, who were now in college. With them opting to do the first two years in community college before heading to university, they stayed home after finishing high school. Which the Davidsons were conflicted about—they liked their children close to them, but also it did not afford them the privacy they craved. And behind this facade was a depravity no one knew about.

Jennifer Davidson (Jenny), the elegant mother who volunteered at bake sales, had a secret. A filthy, insatiable hunger that only her sister Amanda (Mandy) could truly satisfy. The two had been lovers since their late teenage years, experimenting with each other’s bodies long before they ever touched a man. They had shared boyfriends, been in threesomes, and even had some orgies. They promised to have each other's back, and front, for that matter; they arranged for their eventual husbands, Mark and Robert (Bob), to swap with them while they were dating and even when they were engaged. Now, years later, married, the four of them still indulged in this twisted little arrangement, fucking each other with abandon that would scandalize their conservative community if they ever found out. They couldn't always do it, though, with their families, jobs, and general life not affording them the luxury. Some nights, they did meet to relive the swapping.

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 also going to the same party, so they had time too before being bothered. Normally, they would head to the bedroom, but since the children were out for a good part of the night, they couldn't wait and had started in the living room, which was a mess of discarded clothes—and a scene fit for the swinging gods.

Jenny was on her knees, her lips obscenely around Bob’s thick cock, taking him deep into her mouth, almost deep-throating him. Mandy, always worshipping her sister, knelt behind her sister, face buried between Jenny’s spread thighs, her tongue lapping up all the juices from her sister's wet hole. Mark, good, dependable Mark, was fucking Mandy from behind, his hips slapping against her ass, and echoing it with his own hand smacking her ass, as Mandy moaned around Jenny’s pussy.

“Fuck, Mandy, your sister sucks cock sooo well,” Bob moaned, his fingers tightening in her blonde hair as he face-fucked her.

Mandy stopped licking her sister as she looked up. “Don’t flatter her too much,” she purred, as Jenny glanced back. “She gets cocky.”

Jenny pulled the cock out of her mouth to smirk. “I get cock, not cocky. And right now I have Bob's. Get back to sucking me, sister of mine.”

Mark chuckled at his wife as Mandy smacked Jenny on her ass playfully. Mark was gripping Mandy’s hips and driving into her deeper, making her gasp. “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 the cops when they arrived. Sometimes being late was a boon. Disappointed but relieved of not having to explain this to their parents, they headed back home. They had expected to find the house noisy with Uncle Bob and Aunt Mandy here and the adults generally talking loudly, especially after a few beers and wines. Instead, they heard sounds of moans and skin slapping against skin from the moment they stepped inside.

They had entered through the garage and side door. Emma froze at the doorway. They were hidden because the kitchen lights were switched off. Their parents must not have heard them enter the garage. Her eyes widened as they adjusted to the light and took in the scene in the living room, lit by lamps. “OH. MY. GOD!” she whispered, her voice barely audible in the noise coming from the living room. John also pulled a deep breath and stood in shocked silence.

Their mother, Jenny, the poised and proper woman who scolded them for cussing at the dinner table, was now bent over the couch with her breasts swinging wildly as Uncle Bob drove into her from behind. Besides them, Aunt Mandy was straddling their father's face, riding his tongue, and clearly from her facial expressions, he was doing a good job. Aunt Mandy's hands took Jenny’s hair as she pulled her sister into a deep, sinful, unsisterly kiss. John and Emma realized that the sisters were not just changing partners but enjoying each other too. That was incest!

They were flabbergasted.

Emma had grabbed John's arm unknowingly. She dug her nails into his arm every time she thought she would scream and did so to prevent making a sound. 

“We shouldn’t be watching this,” she whispered to him, but she didn’t move her eyes, completely transfixed.

John couldn’t tear his eyes away either. “Fuck,” he muttered, his first words since they had entered the house.

John held his breath, as they didn't want to make a noise, his cock straining against his jeans at the lewd display in front of them. It also had a similar effect on Emma – her panties soaked as she continued to watch her prim mother groan, fucking back against Uncle Bob, shouting, "Harder, Bob, dammit, harder!" The adults were so lost in their activity that they hadn't noticed the children slink away through the stairs in the kitchen. John and Emma walked quietly, almost sneakily—their shocked silence expanded as the symphony of sex behind them receded.

They sneaked back to John's room. Emma quickly locked the door and collapsed on his bed. John initially stood still at first, silent and pensive, and then started pacing in his room. "Fuck. Fuck. Fuck. Did…did you see them?" His voice sounded different with disbelief.

Emma nodded, though she was not ready to believe what she had just seen. "Mom… she was…" She swallowed hard, unable to articulate the image of their mother taking Uncle Bob’s cock like that, and craving more.

John stopped pacing, staring at Emma with wild eyes, understanding the unsaid. "And Dad was eating Aunt Mandy. And… and… she was kissing Mom with her tongue." He struggled to utter those words. His cock was twitching painfully in his jeans as he reimagined the living room scene that he had just witnessed. "They've—they must have done this before. They must have."

Emma bit her lip as her body betrayed her. Her breath came faster, her skin tingling everywhere. And goddammit, she could feel herself getting wet just thinking of them—Mom, Dad, Aunt Mandy, and Uncle Bob. She had never seen them act even remotely inappropriately—raucous, loud, maybe. But never inappropriate. But this was a full-blown orgy—hungry, shameless, wanton. 

Slowly, she lifted her gaze to meet John’s as he stopped pacing back and forth to look at her. The tacit understanding as they stared made her breath hitch.

"We shouldn’t even be thinking about this," John muttered, looking away as if looking away would remove those feelings.

Emma bit her lip. "But we are."

The confession hung between them. Silence except for the sound of their elevated breathing. Emma crawled across the bed towards her brother as he sat on the other edge. "Have you…have you ever thought about me? Ever wanted me?" she whispered, tense, not knowing how her brother would react.

John shuddered. Honesty warred with denial in his head. 'No' was the right answer.

But arousal won. 

"Yes," he breathed out. It was a 'yes' full of guilt and shame. "God help me, Emma, I have."

Emma exhaled, not even aware she had held 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, blushing. "Through the bathroom. You didn't close it, and I opened it a little to see you have sex, um, fuck her so hard. I was touching myself, imagining it was me."

Emma and John shared the same bathroom that connected to each of their rooms.

John grinned at her. "Sneaky bitch!"

And suddenly the mood lightened. The distance between them evaporated as Emma was on him in an instant, almost flying across the remaining distance. His hands were cradling her face as their lips melted into each other, and they kissed one another. Emma put her tongue inside, trying to probe, and was happy that John opened it for her as she relished his taste. 

John was enjoying tracing his sister's lips with his tongue as if he had a duty to remember every curve and commit it to memory. He could taste the flavor of her smudged lipstick. They kissed for some more time before breaking apart—panting, foreheads pressed together, eyes closed, just savoring the moment of the taboo that they had just committed.

"We shouldn’t," John said with no conviction in his voice. His hands were betraying his tongue and already sliding under Emma’s top, holding her waist, inching up towards her breast.

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

And that was all it took for John to lose all restraint.

John kissed her again, slower this time, savoring the taste of her mouth as his hand went up to her breast inside her top. Emma gasped, broke her kiss, and removed her top in one motion. No bra. Just her firm breasts and pointed nipples. She made John stand up, and she took off his Nirvana T-shirt. Then she kneeled and unbuckled his jeans before John could show any hesitation and pulled down his briefs, freeing his hard cock—long and thick. "I’ve dreamed about doing this since that night I saw you with Sarah," she admitted.

John quickly kicked off his jeans and briefs to stand proud and naked while Emma admired his cock from close—the venous length, the perfect crown, the slit with a drop of precum, and the smell of, well, John. She had to touch it, and she put her hands around his girth and started pumping him. The moan from John's mouth suggested she was doing it right.

John pulled her up and put her back against the pillows on his bed. He grabbed her skirt and panties together at the hem and looked at her for any sign of second thoughts. But Emma smiled as she lifted her hips so he could pull them down. "Fuck, Emma," he breathed, as he saw his sister's pussy for the first time, "you're so beautiful. And you're so wet."

"Because of you," she accused him, smiling, but spreading her legs wider for John to get a better view. She crooked her fingers near her pussy with a 'come here' motion. 

He didn’t hesitate. John buried his face between her thighs, inhaling her smell. He immediately pulled out his tongue to taste her, licking with a slow swipe from down to up and up to down and then following the folds of her labia. He flicked at her clit for some time, and then, plunging his tongue deep inside her pussy, he began drinking her fluids. John loved his sister's taste—sweet, salty, umami? 

Emma cried out, her hips coming off the bed as John pleased her, her fingers naturally clutching his hair. Emma realized that John knew how to eat a woman. Damn that Sarah Thompson!

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

He wasn't done yet. He let Emma guide his head, and his tongue followed. He included two of his fingers as well, curling them inside her pussy as he now focused on flicking and sucking her clit while his fingers pumped in and out of her. Emma couldn't hold back, her orgasm coming in waves, her thighs clenching her brother’s head harder. John licked the copious fluids now coming out—saltier, sweeter, umamier? He kept licking her till she released his head and calmed down. 

Finally, she parted her thighs to allow John to remove his head. He crawled up, planting kisses along her body, and lay next to her—kissing her and letting her taste herself. His hard cock lay flush against her thigh, twitching as if it had its own life. Emma reached for his cock, made him lie down, and sat near him. She leaned forward and licked his crown and twirled her tongue around it, and then put her mouth around his hard dick in one smooth motion till she could get as much as possible. John moaned, "Yessss," as she deepthroated him the way she’d seen in porn—slutty, hungry, eager to please.

"Fuck," he hissed, thrusting a little 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, as if her parents were teaching her the dirty ways. She moaned as she took him deeper. She could feel and smell the stubble of his pubic hair while feeling the way his cock twitched in her mouth as he fought to hold back from cumming.

And then he pulled his cock away. He did not want to cum in her mouth. Not yet, anyway. He pinned her back on the bed. John got on his elbows and knees, careful not to put weight on his sister, and aligned his cock at her wet entrance. 

"Are you sure, Em?" he asked; his voice had a sense of hesitation.

Emma answered him by wrapping her legs around his waist and pulling him in; before either of them could change their minds, his cock's head was now buried in her warm pussy.

He then realized and asked her worriedly, "Emma, are you a virgin?"

She laughed. "Not anymore, I guess. Also, not the time to ask that, Big Brother." Still seeing the concern on his face, she kissed him and said reassuringly, "No. I am not. Now, can you please enter me fully?"

John smiled as he sank into her inch by inch, as they grunted and gasped and their bodies joined for the first time. Oh, it was sheer pleasure. It was smooth. It was hot. It was damn fine. It felt heavenly.

"Fuck," John gritted out, his fingers biting into her hips. "You feel so good."

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

And he obeyed—slowly at first, savoring each drag of his cock inside her, concerned for her pleasure. Their kisses—tender between every stroke. But soon, the arousal took over. John slowly increased the tempo of his thrusts—they were harder, faster, and more urgent. Emma's moans and Jason's grunts grew louder.

"Tell me…" John was now more comfortable, sinking deep into his sister. He watched the way her breasts bounced with each thrust inside. "Tell me how much you love your brother’s cock."

Emma moaned loudly—excited by both the actual fucking and her brother's dirty words. "I love it," she gasped. "Love that hard dick in me, love how you fill me, love that it’s wrong, but oh so right! I love you so much."

Emma fucked John back; as she approached another climax deep inside her, her pussy tightened around her brother's thrusting cock. "Fuck me, John. Make me cum again!" As John felt Emma shudder under him, he couldn't control himself anymore. With a groan and a moan, he came inside Emma, his hips jerking as he filled up his sister’s pussy with hot, pulsing ropes of cum.

He crashed next to her—tired but satisfied. He spooned into her and kept kissing her neck; small pecks of love filled with brotherly protection. Emma slid her fingers through his hair, staring at her brother, whom she loved so, so much. 

He looked up. And smiled. Emma gave John a small peck on his lips.

Emma traced idle circles on John’s nipples, her nails making a scratchy sound before she finally whispered, "They do it all the time, don’t they? Not just fucking random people—but 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 lower, 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 pressing together, trying to itch her pussy. "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, possessively. "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 talked dirty to Aunt Mandy. His fingers caressed her thigh. "You think they ever fucked like that in front of us when we were kids? While we were in the other room?"

"God, I dunno. But I fucking hope so!" Emma said with a hoarse voice. She rolled on top of him, straddling his hips, her pussy now on fire. All this sexual talk had both of them horny 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 fucking again just like them. Tree, Apple."

"Yeah," Emma giggled. "And I promise we’re gonna get worse." Then she looked at her brother, mischief in her eyes, pussy grinding on John's thighs. "What if we joined them?" John’s cock twitched against her thigh, straining to find a warmer place. "Fuck."

Emma grinned, grinding her hips down on his already...