Ethan's Nieces
Copyright© 2025 by sublock
Chapter 11: Backyard and Upfront
Incest Sex Story: Chapter 11: Backyard and Upfront - A young man comes home from his first year of college to find that his family's changed... a lot. As the summer progresses, he gets a strange summer job and faces some big fears with the support of his parents and siblings. Note: has quite a lot of partner-sharing (swinging). Not an exclusive harem story.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa mt/ft Ma/ft mt/Fa Fa/Fa ft/ft Fa/ft Mult Teenagers Consensual BiSexual Heterosexual Fiction Workplace Sharing Wife Watching Incest Mother Son Brother Sister Father Daughter Cousins Uncle Niece Aunt Nephew Grand Parent InLaws Rough Gang Bang Group Sex Orgy Polygamy/Polyamory Swinging Anal Sex Cream Pie Double Penetration Exhibitionism Facial Oral Sex Voyeurism Public Sex Small Breasts Nudism AI Generated
We waited until Emma had showered and gotten ready for bed. She came to my room in pajama shorts and a t-shirt, her hair still damp, nervous energy radiating off her.
“Hey,” I said from my bed where I’d been reading.
“Hey.” She closed the door and stood there awkwardly. “I don’t ... I’ve never done this before.”
“I know. Come here.” I patted the bed beside me.
She climbed up and sat cross-legged, facing me. “I’m nervous.”
“Me too.”
“Really?”
“Yeah. I want to make this good for you. I don’t want to mess it up.”
Emma smiled a little. “I don’t think you could mess it up. I trust you.”
“We can stop anytime,” I reminded her. “Seriously. Even if we’re in the middle of something. Just say the word.”
“I know.” She took a breath. “Okay. How do we start?”
“However feels right. Maybe just ... come here?”
I opened my arms and Emma scooted closer, letting me pull her against my chest. We lay like that for a while, just breathing together, her body gradually relaxing against mine.
“This is nice,” she murmured.
“Yeah.” I stroked her hair gently. “Can I kiss you?”
“Yes.”
I tilted her chin up and kissed her softly. Her lips were tentative at first, then more confident. We kissed slowly, exploring, learning each other’s rhythms. My hand stayed on her back, safe territory.
After a few minutes, Emma pulled back slightly. “Can we ... can we do more?”
“What do you want?”
“I want to feel you touch me. Like, really touch me.”
“Where?”
She blushed. “Everywhere?”
I smiled. “We can do that. Do you want to take your shirt off?”
Emma nodded and pulled her t-shirt over her head. She wasn’t wearing a bra — her small breasts perfect and exposed. I could see her nipples hardening in the cool air.
“You’re beautiful,” I said honestly.
“They’re a bit small compared to Jessica. Or Mom.”
“You’ve got the tits that you’ve got, don’t let anyone tell you that they’re not beautiful. They may even fill out a bit more...” I cupped one breast gently, feeling the weight of it, and teased a nipple with a finger, watching it stiffen a bit, goosebumps and a flush around it. She inhaled. “But you shouldn’t care too much about having less than perfect tits. Yours are absolutely lovely ... Is this okay?”
“Yes. God, yes.”
I explored her breasts slowly — touching, caressing, learning what made her breath catch. When I lowered my mouth to her nipple, she moaned softly.
“Oh fuck,” she whispered. “Ethan.” She let out a little giggle.
I sucked gently, my hand playing with her other breast, and Emma’s fingers tangled in my hair. Her hips shifted restlessly.
“Ethan,” she breathed. “I want ... I think I want you to touch me down there.”
“Your pussy?”
She nodded, blushing harder.
“Okay. Can I take your shorts off?”
“Yes.”
I helped her shimmy out of her pajama shorts. She lay back on my bed, completely naked, vulnerable and trusting. I took a moment just to look at her — my little sister, so brave and beautiful.
“What now?” she asked quietly.
“Now I make you feel good.” I hunkered down between her legs, spreading them gently. She clasped her thighs together, embarrassed about me looking at her. “Have you ever had anyone go down on you?”
“No,” she said in a tiny voice.
“Do you want to try it?”
“I’m scared I’ll taste bad or —”
“You won’t,” I promised. “And if it feels too weird, we stop. Okay?”
“Okay.”
I kissed down her stomach, giving her time to adjust to what was coming. When I reached her pussy, I paused, letting my breath warm her skin. She shivered.
“Ready?”
“Yes.”
I licked up her slit slowly, tasting her tangy moisture, and Emma cried out.
“Oh my god!”
“Good?” I asked, looking up at her.
“Like, a little tickly, but tingly too. I guess. Keep going.”
I took my time. I explored her pussy with my tongue — circling her clit, dipping inside her entrance, learning what made her gasp and what made her moan. She was responsive, her body telling me exactly what she liked.
“Right there,” she gasped when I found the perfect rhythm on her clit. “Oh fuck, yeah, that’s the spot, Ethan, oh FUCK!”
I focused there, my tongue working steadily, and felt her thighs start to tremble. Her hands gripped the sheets, her back arching.
“Ethan, I think — I’m gonna —”
She came with a sharp cry, her pussy pulsing against my tongue, her whole body shaking. I kept licking her gently through it, prolonging the sensation, until she finally pushed my head away.
“Too much,” she gasped. “Oh my god, too much.”
I crawled up beside her and pulled her against me. She was trembling, trying to catch her breath.
“Em? Are you okay? Did I hurt you?”
“No,” she swallowed. “It was perfect. I’m just ... it’s really intense. I’ll get used to it. I want to get used to it!”
I held her while she shivered, stroking her back, letting her process. After a few minutes, she calmed down and looked up at me.
“Thank you,” she whispered.
“You don’t have to thank me.”
“Yes I do. You made me feel ... really good. And beautiful. Like my body was mine and you loved it.”
“It is good. You are good.”
She kissed me deeply, tasting herself on my tongue. “Can I touch you?”
“You don’t have to —”
“I want to.” Her hand slid down to my cock, hard and straining in my boxers. “I want to make you feel good too.”
I helped her pull my boxers off, and she wrapped her hand around my shaft tentatively.
“Like this?”
“There are ways to do it right but for now, just get used to it.”
She stroked me slowly, watching my face for reactions, learning what I liked. I guided her hand a little — showing her the right pressure, the right rhythm — and soon I was breathing a little heavily.
“Is this good?” she asked.
“So good, Em. You’ve got a lovely touch.”
She got bolder, stroking faster, her other hand cupping my ballsack, curious about them. I was getting close embarrassingly fast.
“I’m gonna cum,” I warned.
“Where should I —”
“Anywhere. Your hand, my stomach, wherever you want.”
She kept stroking and I came hard, shooting across my stomach and her hand. She watched with fascination, continuing to milk me until I was completely spent.
We lay together afterward, messy and satisfied, talking quietly.
“Okay, yeah ... that was kind of fun,” Emma said.
“Yeah?”
“Yeah...” she made spurting sounds. “Sptt Pttss spew.” Then she laughed and made a mocking porno voice, “oh no you came on me step-bro! However will I get unstuck from this washing machine?”
“You little perv. You’re watching the dumb pornos.”
She snuggled closer. “Can we do this again?”
“Whenever you want. We’ll take it slow. Figure out together what feels right.”
“I love you, Ethan.”
“I love you too, Em. I’m your guy.”
The next few days, Emma was thoughtful and introspective. She spent hours journaling in her room, humming songs to herself, processing everything. And she talked to Mom — long conversations behind closed doors that I wasn’t privy to.
One afternoon, I found them in the kitchen together, Mom making tea while Emma sat at the counter.
“— my first time was actually terrible,” Mom was saying. “I was fifteen, he was eighteen, and it was in the back of his car. It hurt and he finished in like two minutes and then acted like he’d done me a favor.”
Emma laughed. “Seriously?”
“Seriously. Lucky for me I shortly had sex with someone who actually cared about my pleasure — Your Dad knew what he was doing, he just wasn’t so smart about birth control, and that’s how we got David. But that’s also when I learned my body could feel good.”
“Did you ever ... with family?” Emma asked quietly.
Mom paused, considering. “Not growing up. But as an adult, yes. Before we all got married I got with your father’s brother Philip a few times. And then later he went on to marry Aunt Linda, right? We all played together. And now there have been lots of others in the community. It felt different — more meaningful because there was already love and trust.”
“Do you think it’s wrong?”
“I know society says it’s wrong. But I don’t feel wrong. I feel grateful for the intimacy and honesty.” Mom looked at Emma seriously. “But what matters is how you feel. Not what I think, not what society thinks. You.”
“I feel good,” Emma said. “Nervous sometimes. But good.”
“Then that’s what matters.”
Dad had a talk with Emma too, one evening while Mom and I were making dinner. They went for a walk around the neighborhood, and when they came back, Emma seemed lighter.
“What’d you guys talk about?” I asked later.
“He told me I can always say no,” Emma said. “Even in the middle of something. Even if I said yes before. That everyone’s comfort matters more than anyone else’s pleasure.”
“The modern man. I guess you actually can teach that consent stuff to the boomers.”
“I know, right? It helped to hear it from him though.”
We pulled into David’s driveway just after noon, the summer sun already beating down with that late-August intensity that made everything shimmer. Emma sat beside me in the back seat, her beach bag clutched in her lap, nervous energy radiating off her.
“You okay?” I asked quietly.
“Yeah. Just ... this is the first time I’ll be doing stuff with everyone watching. Like, really everyone.”
“You don’t have to do anything at all, though,” I reminded her.
“I know. I want to though. I’m done feeling like the last to the party. The real family.”
Mom turned from the front seat and smiled at Emma. “You’ve always been a part of the real family, honey. Nothing you do or don’t do today changes that. Sex is just a different kind of realness.”
Dad parked behind Jessica’s car — she and Tom had arrived just ahead of us. The backyard gate was open, and we could already hear music playing and splashing from the pool.
David’s house was perfect for days like this. The backyard was large and private, surrounded by tall privacy fences and mature trees. The pool itself was kidney-shaped and sparkling clean, with a hot tub at one end and a shallow wading area at the other. Lounge chairs were scattered around the deck, along with several large towels and a cooler full of drinks.
David emerged from the house as we walked through the gate, already shirtless in red swim trunks. My older brother has always been fit, but his time at Blackwood and his vivacious home sex life seemed to agree with him — he looked strong and healthy, his skin tanned from summer sun.
“Finally!” he called out, grinning. “We were just starting to get a little worried.”
“Had to just get all the goodies and refreshments straight,” Dad said, setting down the cooler he’d brought. “Where’s everyone else?”
“Sofia’s inside getting snacks. The girls are already in the pool. Marcus should be here any minute with Keisha.”
As if on cue, Mia’s head popped up from underwater, her dark hair slicked back. “Uncle Ethan! Aunt Emma! Get in, the water’s perfect!” She loved to tease us about that. Being older than her aunt.
Lily surfaced beside her sister, equally enthusiastic. Both girls wore bikinis — Lily’s purple, Mia’s black — and even from here I still marveled at how drop-dead gorgeous they’d become. Lily was curvaceous and filled out, her breasts straining slightly against her top. Mia remained lean but had that lithe, athletic grace to her movements.
Jessica and Tom were already lounging on chairs by the pool, Jessica in a blue one-piece and sunglasses that somehow managed to be both modest and incredibly sexy, Tom in simple black board shorts. They waved drinks at us and then Jessica nudged Tom to get up and offer his cocktail services to my parents.
“I don’t expect that anyone is going to bother to use the changing room,” David said, gesturing to the pool house.
Emma did grab her bag and head in that direction, Mom just starting changing right out in the open, us menfolk staring at that lovely figure. Dad, already wearing his trunks under his shorts, stripped off his shirt and dove into the pool, making the girls squeal and splash away from the resulting wave.
I changed quickly myself, catching appreciative looks from Jessica (and gave her a responsive dick-waggle) before pulling on my navy swim trunks. Emma emerged at the same time.
Mom was shimmying into a red two-piece that showed off her still-impressive figure—firm abdomen, beautiful full breasts, strong legs. At fifty-two, she could easily pass for twenty years younger. The power of gardening and skin care, I guess.
Emma wore a simple black bikini, modest by some standards but showing more skin than I’d ever seen her display in public. She caught me looking and blushed.
“If I’ve got it, flaunt it?” she asked.
“You look sexy,” I said honestly.
Sofia came out of the house carrying a tray of cut fruit and crudités, and I couldn’t help but offer her an appreciative whistle. David’s wife was stunning, her billowing dark hair, olive skin, and curves that seemed designed to drive men crazy. Her in the tan bikini was a stirring sight.
“Help yourself,” she called, setting the tray on a table. “David insisted on enough food for an army.”
“Oh I’ll help myself,” I said, giving her a little chase with tickling hands. She let out a whoop and tried to fight me off, and we ran back around the pool and I let her push me in, shouting in fake surprise. Mia and Lily immediately went on the attack, tickling me in return for the attack on their mother. Then Emma couldn’t resist and cannonballed in as well, and I was surrounded by writhing, grasping, teenage flesh. Absolute torture and I loved every minute of it.
The last teenagers arrived: Marcus with Keisha, both in athletic swimwear, demanding some cocktails as well. Marcus had his father’s build — tall and strong — while Keisha was graceful and beautiful with dark skin and a confident smile.
For the first hour, everything was completely innocent. We swam, played marco polo, had chicken fights (Emma on my shoulders, Lily on Marcus’s), got a little drunk, and floated about on rafts. The sun beat down, the music played, and it felt like any normal family pool party.
But gradually, as I was always coming to expect now, the energy began to shift.
It started small. Tom swimming up behind Sofia and wrapping his arms around her waist, kissing her neck. Jessica sitting on her brother David’s lap on the lounger, her ass grinding subtly against him. Dad’s hand on Mom’s hip as they dangled their legs into the water, fingers tracing patterns on her skin.
Emma noticed too. She was treading water beside me, watching everything with wide, curious eyes.
“It’s starting,” she whispered. I shrugged.
“You can just swim if you want,” I said. “Or get out and sun yourself. Nobody expects anything.”
“You mentioned that it’s like this, there’s an inflection point, a shift.”
Mia was the first to shed her top, as always. She unhooked it and tossed it onto the deck. “Tan lines su-uck,” she sang, her small breasts now bare to the sun. She cupped them and shook the water from her hair, like something from a music video.
Lily giggled and did the same, her fuller breasts bouncing free. “Yeah, tan lines are the WORST.” she said as theatrically as possible. She made it a point to shake her titties at her Dad and Granddad.
Within minutes, most of the swimsuit tops were gone. Sofia untied hers gracefully, her large breasts drawing appreciative looks. Mom unhooked her top, and Jessica peeled off her one-piece down to the waist. Even Keisha stripped off her top once Marcus gave her a chance to notice.
Emma looked down at her own bikini top, then at me. “Should I?”
“Only if you want to.”
She bit her lip, then reached back and unhooked it. She dropped the top beside the water and she was bare-chested in the pool, her small nipples hard in the cool water.
“There,” she said, a bit breathless. “Boobies for all.”
I pulled her close and kissed her forehead. “Yowza. Bazongas. Awooooooga.” I made wolfish grabby motions.
Around us, the touching became more deliberate. Tom now had Sofia pressed against the pool wall, kissing her deeply, one hand clearly between her legs. Jessica and David were making out heavily, his hands all over her breasts. Marcus and Keisha were similarly engaged.
“Should we get out?” Emma asked. “I feel like it’s going to get more intense.”
“Let’s go sit on the water steps,” I suggested.
We moved to the end of the pool, only waist-deep. Dad and Mom were still a bit deeper near us, and I could see Dad’s hand moving rhythmically underwater — definitely fingering Mom based on her expression.
“Hey kids,” Mom said breathlessly, not even trying to hide what they were doing. “Having fun?”
“Yeah,” Emma said, fascinated by how open they were being.
“Good.” Mom’s eyes fluttered closed as Dad did something particularly skillful. “Oh fuck, Frank.”
Emma watched her parents with rapt attention as Mom came quietly, her body shuddering, Dad’s hand still moving underwater.
David stood up, leaving Jessica to catch her breath. “Okay, I think we’re all ready to move this to the deck. More room, better angles.”
Everyone started climbing out. Emma hesitated, and I saw her looking at all the naked or semi-naked bodies with a mixture of excitement and nervousness.
She settled on a smile and climbed out in front of me. I couldn’t help but admire that tight teenage ass, and I flashed back to imagining that pussy I’d already tasted just behind that last scrap of cloth. On the deck, towels were being spread out on various lounge chairs and on the ground. People were pairing off naturally, drawn by attraction and curiosity.
Tom was still playing with Sofia, who cooed at him appreciatively. “Mind if I take your wife to the moon?” he asked David.
“Not at all. I’ve got other plans.” David’s eyes were on Mom.
My stomach clenched watching my older brother approach our mother. But Mom smiled and opened her arms to him.
“Come here, baby,” she said.
“Mmmmm ... Mom,” David murmured, pulling her close and kissing her deeply. His hands roamed her body, and she responded enthusiastically, helping him pull down his trunks.
Nearby, I saw something equally surreal — Dad was settling down next to Lily. My fifteen-year-old niece was lying on her side on a towel, one leg folded, and Dad was gently undoing her bikini bottoms, saying what I presumed to be complimentary things as he uncovered that pretty little pussy of hers like it was a gourmet feast. She stayed on her side but looked at him fondly while stretching one bare leg high in the air, showing herself off, and he settled over her other leg. His cock was pointing right at her junction. He brushed it against her and she squirmed cutely.
“Is this okay, sweetheart?” he asked her.
“Oh yes, Grandpa,” Lily said, her voice breathy with anticipation. “Please.”
Dad slotted himself and pushed into her slowly, and they both groaned. Watching my father fuck my niece while she called him Grandpa was so twisted and so hot I couldn’t look away.
Emma gripped my arm. “Oh my god,” she whispered. “That’s so...”
“Hot?” I supplied.
“Yeah. Really hot.”
Lily was not even a full year older than Emma. That her Dad was having sex with someone her age was making Lily’s brain explode in slow motion. I didn’t totally know what was going through her head, but I could see that it was a lot.
Around us, the deck became a landscape of bodies. Tom had Sofia bent over a lounge chair, fucking in and out of her from behind and playing with her amazing breasts while she moaned, slapping her ass back at him. My sister Jessica had claimed our nephew Marcus on another towel, and was just starting to ride him, her knees up and her legs spread, showing us all the sight of his cock slipping up into her, her breasts bouncing. And Keisha was on her knees next to my Mom and David, whispering what I assumed to be dirty things to her while playing with her breasts, my mom moaning with the pleasure of her oldest son’s cock sinking into her again and again.
I held Emma’s hand and we just stared at them. So much to watch, my attention kept shifting back and forth. I kept coming back to David definitely fucking our Mom, his cock sliding in and out of her pussy with practiced ease.
“That’s right, Mom,” David groaned. “Take your son’s hard fucking cock. You feel so fucking good.”
“Oh baby,” she gasped. “You’re so big. Own that fucking cunt. Fuck it hard.” My fucking mom just called her pussy a cunt. I felt Emma flinch.
The explicit mother-son dirty talk made my cock throb painfully in my trunks. Emma noticed and looked down.
“You’re really hard,” she observed.
“Well, uh ... yeah, in case you hadn’t noticed —” I waved vaguely.
“I like it when you’re hard.” She reached down and squeezed me through the fabric. “I like it. It’s hot seeing you turned on.”
Keisha gave a lingering kiss to Mom but our mother was definitely out of it, shaking against David’s thrusts, so Keisha moved to our loungers, a knowing smile on her face. She was completely naked now, her body gorgeous — athletic and toned with high, firm breasts and a completely bare pussy.
“Emma, honey,” Keisha said gently. “Want me to show you some tricks?”
Emma looked at me, and all I could do was grin, transfixed by this ebony Goddess.
“Okay,” Emma said, a mixture of nervousness and excitement.
Keisha sat on the lounger next to her and had her lie back. “I know you’ve explored yourself. But being around all of this can really make it hit different. Mixing your touching with the visuals.”
Emma’s hand moved to her pussy tentatively, rubbing herself through her bikini bottoms.
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