Ethan's Nieces
Copyright© 2025 by sublock
Chapter 4: The Party
Incest Sex Story: Chapter 4: The Party - A young man comes home from his first year of college to find that his family's changed... a lot.
Caution: This Incest Sex Story contains strong sexual content, including mt/ft Ma/ft mt/Fa ft/ft Fa/ft Teenagers Consensual BiSexual Heterosexual Fiction Sharing Wife Watching Incest Mother Son Brother Sister Father Daughter Cousins Uncle Niece Aunt Nephew InLaws Rough Group Sex Orgy Polygamy/Polyamory Swinging Anal Sex Cream Pie Double Penetration Exhibitionism Facial Oral Sex Voyeurism Public Sex
I adjusted my mask for the third time as we walked up the long driveway. It was a simple black domino mask, nothing fancy, but it felt foreign on my face. Mia walked beside me in a short red dress that hugged her small frame, her own mask silver and decorated with delicate swirls. Lily was on my other side in a black cocktail dress that showed off her curves, wearing a matching black mask.
“Stop fidgeting,” Mia said, swatting my hand away from my face. “You look fine.”
“I look ridiculous.”
“You look mysterious,” Lily corrected. “That’s the whole point.”
Richard Chen’s mansion was massive—a modern structure of glass and stone that sprawled across what had to be five acres in the hills outside the city. Lights glowed from every window, and I could hear music and laughter floating on the warm evening air. Cars lined the circular driveway—expensive ones mixed with regular sedans and SUVs.
“Remember,” Mia said as we approached the entrance, “the masks are for plausible deniability. Everyone knows who everyone is, but we pretend we don’t. It makes it easier.”
“Easier to fuck your relatives?” I muttered.
“Easier to explore without judgment,” she smiled, always trying to turn my snarky humor into a positive.
The front door was open, and we walked into a massive foyer with floor-to-ceiling windows and some sleek chrome modern lighting. A woman stood there checking in guests—late twenties, Asian, wearing a black pencil skirt and white blouse. She had a mask but also wore a small silver collar around her neck.
“Welcome,” she said with a warm smile once she confirmed our names. “Drinks are in the main room, food is set up in the dining area, and the pool and hot tubs are out back. Please enjoy yourselves.”
“Thank you,” Mia said.
As we walked past, I noticed the woman’s skirt was slit up the side, showing most of her thigh. And her blouse was unbuttoned enough to show the curve of her breasts.
“Is she...?” I started.
“A servant?” Mia finished. “No, she’s a volunteer. I mean yeah, she works for the ‘company’...” she chuckled, making finger quotes, “ ... but I think as a junior exec in marketing and she just has a submissive streak. Likes being the kinky party manager. Gets off on it.”
“So she’s a guest who’s pretending to be a servant?”
“Exactly. There are a a fair number of people like that here. You’ll see them in collars or cuffs. They’re playing a role because it turns them on.”
We moved through a glassy foyer and rooms to an outdoor courtyard. Good thing it was mid-Summer between semesters because clearly the warm night was mean to be enjoyed. There was padded outdoor furniture under lights and the occasional tiki torch. I saw an open bar next to a DJ table where a big black guy with dad energy was spinning some dance records, but it wasn’t too loud. There had to be fifty people already here, maybe more. Some were dressed in cocktail attire like us. Others wore more casual clothes—jeans and nice shirts, sundresses. A few women wore lingerie and robes. Some people were topless already.
Everyone wore masks.
A man in just swim trunks and a gold mask walked past carrying a tray of champagne glasses. Another “servant,” I assumed. His body was toned and tan, and more than a few people’s eyes followed him as he passed.
“Ethan!”
I turned to see Marcus approaching, Keisha beside him. Marcus wore slacks and a button-down with the sleeves rolled up, his mask a simple black one like mine. Keisha was stunning in a gold dress that plunged low in front, showing off her cleavage. Her mask matched the dress.
“You made it,” Marcus said, clapping my shoulder. “What do you think?”
“It’s ... a lot.”
“Wait until things really get started,” Keisha said with a grin. “This is still the tame part.”
A woman in a sheer robe approached us—one of the servers. Under the robe, she wore only a tiny thong, her breasts completely bare, nipples delicately pierced. She offered us champagne from her tray, and we all took glasses.
“She’s beautiful,” Lily said after the woman walked away.
“Yeah, I think part of the appeal of the orgy set here is getting tuned up so you can show off a bit,” Mia observed. “It’s a hell of an insensitive, better than a gym membership.” Her eyes widened. “Oh shit, there’s Serena Jules! She was in my class last year. I wonder if her whole family got recruited?”
I scanned the crowd, trying to recognize people through their masks. There—that was my brother David, talking to a tall blonde woman who wasn’t Sofia. And there was Sofia herself, laughing with a group of men in suits. I spotted my aunt Linda near the windows with my uncle Charles, both of them dressed nicely but watching the room with hungry eyes. Linda grinned and waved back at me.
Then I saw them. My parents.
My mom wore a blue cocktail dress that I’d never seen before—fitted, showing off a figure I’d always felt a little guilty about noticing. She was in her early fifties, but she’d kept herself in shape. The dress showed her legs, her waist, the curve of her breasts. Her blonde hair was down, and her mask was blue to match her dress.
My dad stood beside her in slacks and a polo shirt, his mask simple black. He had his hand around her shoulders, tenderly curling a lock of her hair.
I watched as another man approached them — someone who looked a bit familiar, maybe a distant family friend? He said something that made my mom laugh, and she touched his arm. The man’s hand stroked up from her waist, his knuckle just teasing her where her nipples were covered, and my dad just smiled, nodding at something being said.
For the first time, I looked at my mother as a sexual being. Not as “Mom,” but as an attractive woman in her prime. The way she moved, the confidence in her posture, the way she flirted with that stranger while my dad watched approvingly.
Could I...? Would I...?
“Earth to Ethan,” Mia laughed, snapping her fingers next to my face. “You’ve got a hell of a holy-shit-am I-seeing-my-parents-at-a-swinger’s-party look.”
“Sorry, I just...” I gestured vaguely toward where my parents stood.
“Oh yeah, they’re here,” Mia said casually. “Probably going to mingle for a bit before things heat up. Your dad likes to watch your mom with other guys first.”
My cock stirred at that image, and I felt deeply weird about it.
“Come on,” Marcus said. “Let’s check out the pool area.”
We walked towards the one spacious flattop not surrounded by mansion, Outdoor and opening onto sunset and trees. The pool here was huge — Olympic-sized — with underwater lighting that made it glow blue and purple. Several hot tubs dotted each side, already occupied by people in various states of undress. Beyond the pool, the lawn stretched out with cabanas and lounge areas, all lit with soft string lights.
“This is insane,” I muttered.
“This is once a month,” Keisha corrected with a laugh.
More “servants” moved through the crowd offering drinks and food. I watched a young woman in just a collar and thong kneel beside a man in a suit, and he fed her a strawberry while stroking her hair. She smiled up at him adoringly before moving on to serve others.
The energy was building. I could feel it. Music played from hidden speakers, and people were getting looser, touching more, dancing. A woman near the pool untied her halter top and let it fall, baring her breasts to appreciative glances.
“It usually starts slow,” Mia explained, reading my expression. “People arrive, have drinks, socialize. Then someone starts something, and it spreads.”
“Like wildfire,” Lily added, her eyes bright with excitement.
We found a seating area near one of the hot tubs and settled in. More family members appeared—my cousin Sarah with her mom Linda, both in cocktail dresses. David and Sofia joined our group, Sofia immediately kissing Keisha in greeting, their tongues visible even through their masks.
“Having fun yet?” David asked me.
“Ask me in an hour,” I said.
He laughed. “Fair enough.”
Sofia was already pulling her dress over her head, revealing she wore nothing underneath except a tiny thong. A few appreciative whistles accompanied the lovely sight. Her breasts bounced free, and she stretched unselfconsciously before settling onto a lounge chair. David pulled her hand up and kissed it, grinning at the onlookers with a can-you-believe-what-a-lucky-guy-I-am grin.
Around the pool, more people were stripping down. The hot tubs were filling up with naked bodies. I watched two women kiss deeply while a man fondled both their breasts from behind.
Then I heard it—a moan. Clear and loud enough to carry.
Everyone turned toward the sound. Near the far end of the pool, there was Mia’s friend Serena, bent over the edge while a man fucked her from behind. She was fully naked, her mask askew, her mouth open in pleasure. The man—also naked except for his mask—gripped her hips and thrust into her with steady strokes.
No one seemed shocked. If anything, people moved closer to watch.
“And there it is,” Marcus said. “The first one.”
Serena’s moans got louder. More people gathered around, some just watching, others starting to touch their partners. I saw a man drop to his knees in the pool and start eating out a woman sitting on the edge. Another couple started making out intensely, hands roaming.
“Want to get this started?” Keisha asked Marcus, her hand sliding up his thigh.
“Fuck yes,” he said.
Keisha stood and slowly unzipped her gold dress. She let it fall to the ground, revealing her incredible body—full breasts, toned stomach, curvy hips, and those long legs. She wore no underwear. Her pussy was bare and already glistening in the low light.
People nearby were definitely watching now. Keisha moved to stand in front of Marcus, swaying her hips, running her hands over her body. She cupped her breasts, pinching her nipples until they were hard and prominent.
“You like what you see?” she asked, her voice carrying.
“You know I do,” Marcus said, his cock already tenting his slacks.
Keisha turned around and bent over slowly, giving everyone a perfect view of her ass and pussy from behind. Her lips were puffy and spread, her hole visible, already wet. She reached back and spread her cheeks wider, putting herself on full display.
“Heh, here we go again, huh?” I shook my head in disbelief, lifting my glass at Mia and waving it toward ... all of it.
Mia’s hand went to my cock through my pants, stroking. “My brother and his girlfriend sure do get their rocks off from performing,” she smirked. “They are filthy exhibitionists.”
Keisha straightened and turned back to Marcus. She unbuttoned his shirt slowly, revealing his toned chest and abs. She pushed it off his shoulders and then went to work on his belt and zipper. When she pulled his pants and boxers down, his cock sprang free—thick and hard, at least seven inches.
A small crowd had gathered now—maybe ten or fifteen people forming a loose circle around them. Some were naked already, touching themselves or each other while watching.
Keisha knelt in front of Marcus and took his cock in her hand, stroking it slowly. She looked up at him through her mask, then leaned forward and licked from his balls all the way to the tip. Marcus groaned.
“That’s it, baby,” he said. “Show everyone how good you suck cock.”
Keisha opened her mouth and took him in, sinking down until her lips reached the base. She held there for a moment, her throat working around him, then pulled back and gasped for air. Spit connected her lips to his cock in thick strands.
“Fuck, that’s hot,” a woman nearby said. She was topless, her hand between her legs.
Keisha went back down, bobbing on Marcus’s cock with enthusiasm. Wet, sloppy sounds filled the air. She pulled off to lick his balls, sucking one into her mouth while her hand stroked his shaft. Then she took him deep again, faster now, fucking her own face on his cock, making loud gluk-gluk-gluk sounds on purpose, just showing her skills off.
Beside me, Mia had unzipped my pants and pulled out my cock. She stroked me slowly while we watched. On my other side, Lily had hiked up her dress and was fingering herself, her eyes locked on the scene.
Sofia had moved closer to the action. She was fully naked now, her hand circling the tip of one of her breasts, clearly aroused. David followed her, also naked, playfully whapping his hard cock against her ass.
Marcus pulled Keisha to her feet and kissed her deeply, tasting himself on her tongue. Then he turned her around and bent her over the lounge chair, the same position we’d all seen the first couple in by the pool.
He positioned his cock at her entrance and pushed in slowly. We all watched his thick shaft sink into Keisha’s sexy dark pussy inch by inch, teasing us with glimpses of its inner pinkness. She moaned loudly, her back arching, pushing back against him.
“Oh fuck yes,” she gasped. “Fuck my wet fucking pussy, you hard-dicked bastard.”
Marcus started fucking her with deep, measured strokes. Each thrust made her ass jiggle. We could see his cock sliding in and out, coated in her cream, stretching her pink hole.
“Harder,” Keisha begged. “Fuck me harder.” A few agreeing shouts came from the audience: “Yeah, harder!” someone yelled. “Fuck that pussy!” called a girl, clapping with delight.
Marcus grabbed her hips and really started pounding into her. The slapping sounds of skin on skin mixed with her moans and gasps. Her breasts swung beneath her with each thrust.
More people in the crowd were laughing and flirting, goading each other on. A woman nearby was on her knees sucking a man’s cock while another man fingered her from behind. Another couple was fully fucking on a lounge chair ten feet away. What had been one scene was becoming multiple, spreading across the patio.
Sofia moved to kneel beside Keisha, running her hands over the younger woman’s back. “You’re taking that cock so well,” Sofia purred. “Such a good girl.”
David had positioned himself in front of Keisha’s face, his cock hard and ready. Keisha opened her mouth automatically, and he pushed inside. Now she was getting fucked from both ends—Marcus pounding her pussy, David fucking her mouth.
“That’s it,” Marcus groaned. “Take both cocks. Show everyone what a good slut you are.”
The crowd was loving it. A few masks began slipping off as people gave up on anonymity. I recognized some faces from the firm—coworkers of David’s, executives, assistants. All watching this sexy teenage black girl get spit-roasted by her boyfriend and his father.
Mia had stopped stroking me and was pulling off her dress. Lily was already naked, her attention on a few adults smiling and pointing her out to each other. She lifted a leg and displayed herself, giggling, running her hand up and down her teenage pussy. All around us, clothes were disappearing. The party was transforming into exactly what Mia had promised — an orgy.
Sofia moved underneath Keisha, lying on her back and positioning her face under Keisha’s pussy. Her tongue went to Keisha’s clit while Marcus continued to fuck her from behind.
“Oh fuck!” Keisha cried out around David’s cock. The triple stimulation was too much. Her body started shaking, her pussy clenching around Marcus’s shaft.
“She’s cumming,” someone announced, excited. Marcus added to the commentary, calling out to the crowd, “Fuck, her pussy gets so tight when she cums. Oh shit! OH SHIT, yeah, I can feel her, here it co-o-omes.” I didn’t know which was getting milked more: My brother’s dick in her mouth or this audience.
Keisha screamed, and David pulled his cock from her mouth so everyone could hear. Her orgasm hit hard, her whole body convulsing. Sofia kept playing with her clit through it, making it last longer.
When Keisha finally stopped shaking, Marcus pulled out. His cock was rock hard, glistening with her juices.
“I want to cum on her,” Marcus said, stroking himself. “Want everyone to see.”
Keisha moved to kneel in front of him, her mouth open, her hands on her breasts. “Do it,” she said. “Cover me up, boys.”
Marcus stroked faster, aiming at her face and chest. Within seconds, he groaned and came. Thick ropes of cum shot out, hitting Keisha’s beautiful dark skin: her face, her neck, her breasts. He covered her with three, then four sexy streaks of white while everyone watched and cheered. He looked up.
“Come on, Dad,” he urged, “you know how much she loves to get painted.”
David grunted, muscles flexing as he stroked himself, trying to ride the high of her blowjob. It took him longer than the crowd probably liked but everyone erupted in cheers as he finally added his load across her face and neck.
When he finished, Keisha was dripping with cum. It ran down her face, pooled in her cleavage, dripped off her nipples. She smiled and ran her hands through it, spreading it over her breasts.
“Fuck, that’s beautiful,” a woman in the crowd said.
Sofia sat up and started licking the cum off Keisha’s body, sharing it with her in messy kisses. The crowd loved it, several people now openly groping each other while watching.
Mia pulled me to my feet and started stripping off my clothes. “Your turn,” she said. “Let’s show everyone what the new kid can do.”
“I don’t know if —”
“Stop thinking,” she interrupted, pulling my shirt over my head. “Just wave that cock around and show it off.”
She pulled me over to the soft lawn off the patio and climbed on top of me, making a bit of a show of it. Her brother wasn’t the only one who liked to show off. She planted one foot next to my thigh and spread herself, rubbing my proud erection through her pussylips while making smacking noises with her mouthylips. Her small body was perfect—tight and warm and eager. She finally got oriented and started teasing me, sinking herself over my cockhead but no further and then wiggling and hovering, her eyes meeting mine. They were full of mischief.
“You sexy little slut,” I grunted in frustration, grabbing her hips. I thrust up, lifting my butt off the ground, feeling myself push up into that tight warm sheath. My brother’s daughter.
She laughed and relented, dropping down. But shortly began lifting her butt again, up and down. She started riding me fast, her small breasts bouncing.
“That’s Ethan,” I heard someone say. “David’s little brother.”
“I guess that makes her his niece, huh?” another voice added. “God I fucking love these parties.”
Lily joined us, straddling my face and lowering her pussy to my mouth. I licked her slit, tasting her sweetness, while Mia rode my cock. My hands went to Lily’s ass, gripping her, trying to find that happy middle ground of pulling at her young flesh while still being able to breathe.
A few other hands were groping Lily on top of me, but I couldn’t see whose. I was doing my best digging my tongue up into her — sometimes when I would do a sucking kiss along her labia she lets out the most delicious little squeal — but she was lifted over next to me, and I saw an older man and another woman closing in on her from either side, kneading her and nuzzling her, feeling her body.
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