The Greenfield Family
Copyright© 2025 by icehead
Chapter 4: The Ishizawas
Incest Sex Story: Chapter 4: The Ishizawas - Unfaithful, inattentive parents in a failing marriage. Bickering siblings who can barely stand to be in the same room. A sister who jetted off to college and never calls. A long list of secrets and dark histories. These are the ingredients that make up the dysfunctional Greenfield family. But the oldest son's girlfriend has a plan to help repair this fractured family, by converting them to her own family's not-so-conventional lifestyle.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa mt/ft Ma/ft mt/Fa Fa/Fa ft/ft Fa/ft Blackmail Coercion Consensual Drunk/Drugged Rape Romantic Lesbian BiSexual Heterosexual Cheating Sharing Slut Wife Mother Son Brother Sister Father Daughter Cousins Uncle Niece Aunt Nephew BDSM Rough Gang Bang Group Sex Orgy Polygamy/Polyamory Swinging Anal Sex Cream Pie Double Penetration Exhibitionism First Facial Masturbation Oral Sex Sex Toys Tit-Fucking Voyeurism Nudism Slow
Sota Ishizawa grunted through his teeth as he pulled back on the young pair of feminine hips he was holding like handles, driving deep into the 21-year-old pussy that was enveloping his 45-year-old shaft. The girl kneeling before him panted hard, gasping with pleasure each time his hips impacted her smooth, delectable backside. She reached a hand back to place on her ass, looking back over her shoulder at him.
The face of his eldest daughter stared up at him, glassy-eyed with lust. “Fuck me, Daddy!” she husked. And he did.
It was Tuesday now, and Mina had been home from college since Saturday. It had only taken a few minutes after she’d arrived three days ago before the family had proceeded to welcome her home in their own signature way. They had hardly stopped in the days since. They had missed each other while she’d been away, and they were making real good use of her presence while it lasted.
They also hadn’t bothered to shut the door to the master bedroom. There was no point in this family.
This meant that Mina’s cries of pleasure could be clearly heard throughout the house. Downstairs, 18-year-old Ami and 16-year-old Mamoru looked up from where they sat on the couch, playing a few rounds of Mariokart on their Nintendo Switch, at the sounds coming from above. Both of them were just as naked as their father and sister. They always were in this house.
“Wow. Dad’s giving it to her good, isn’t he?” Ami said, the towel she sat on beginning to moisten a little.
“Mm, yeah,” Mamoru moaned dreamily. Ami glanced at him and noticed how his dick was starting to stiffen. She flushed slightly, and giggled good-naturedly at her brother. The notion of setting their game aside and turning to another form of fun and games was starting to firmly take root in both their minds.
The front door opened, and in strode their mother, who immediately turned her attention to the sounds of pleasure coming from upstairs as well. Madeline Ishizawa had just been attending to her duties as proprietress of the Sacred Oaks Nudist Camp, greeting guests and conducting a couple of new members on a tour of the grounds. Upon returning to the so-called Big House on site that was her family’s home and heard what was happening, she blinked and smiled in impressed amusement.
“Wow, are Mina and your dad at it again?” Madeline asked her kids. When Ami and Mamoru nodded, Madeline slipped off her flip-flops—the only items she was wearing apart from her wedding band and a few other small pieces of jewelry—and hurried up the stairs.
She reached the door to the master bedroom, and smiled at the sight of her husband balls-deep inside their daughter. Sota noticed her presence immediately, looking up and grinning at her. With Mina it was a little hard to tell if she’d noticed her mother was there, what with the way her eyes were squeezed shut and the noise she was making.
In truth, Mina was momentarily oblivious to everything but her father’s cock, until her mother came and sat down on the bed right in front of her, and took Mina’s face in her hands. Mina opened her eyes to see her mother’s beautiful blue eyes, shining auburn hair and smiling lips, before Madeline came forward to open-mouth kiss her daughter. Mina moaned harder as she and her mother dueled tongues in a sensuous dance.
“You know, Mina,” Madeline purred, “as much as I’ve enjoyed what we’ve been doing these last few days, you might want to get out and enjoy the sun and air some more while you’re here.”
“Unh ... unh ... I’ll keep that in mind ... oooh, don’t stop Daddy!”
After making out for a few more minutes, Mina lowered her head to kiss and suckle her mother’s pear-shaped breasts. Madeline sighed contentedly, and looked up to lock eyes with her husband. They watched the expressions of pleasure playing across each other’s faces, each only adding to their own.
“Can I lick your pussy Mom?”
“Ooh, I thought you’d never ask, baby!”
There was a time when Sota Ishizawa might have exploded on the spot from the sheer eroticism of watching his wife sit back and spread her legs for his daughter’s hungry tongue while her juicy walls squeezed his cock. But he’d had years of experience to get used to this sort of thing, and now it only spurred him to thrust deeper and harder into his daughter, as his wife threw her head back and gasped repeatedly from the way Mina was orally giving thanks to the vagina that had birthed her.
Eventually Sota happened to glance up and noticed his other two children standing in the doorway, holding hands with fingers interlaced as they enjoyed the show. Mamoru’s prick was jutting straight out from his teenage body, and was showing some signs of wetness, most likely from having just been in his sister’s mouth. Ami’s nipples were stiff and hard as pebbles, and her inner thighs were glistening with arousal.
“Were we making too much noise for you?” Sota grinned.
“We couldn’t focus on the game anymore,” Ami shrugged.
“Yeah, it sounded like it was more fun up here,” Mamoru put in.
Madeline chuckled. “Come here, kids.”
Both of them eagerly hurried over to the bed and climbed onto it. Madeline took hold of her son’s young cock and inhaled it into her mouth, while Ami bent over to kiss and suckle her mother’s tit.
As Mina watched this from her vantage point of looking up from between her mother’s legs, she reflected, not for the first time, on how much she pitied those so-called “normal” people who thought that incest was in the same league as rape and pedophilia. She considered herself and her siblings to be among the luckiest kids in the world to have been born into an incestuous family, especially one that lived in a nudist camp. She loved living naked and being able to fuck her family. She couldn’t imagine her life any other way.
The kids had lived their whole lives in the Big House on Sacred Oaks, just as Madeline had before them, having inherited the ownership of the place from her own parents, who had since retired to a humbler dwelling somewhere else on grounds. The only time Madeline had lived anywhere else had been during her own college years, which was when she’d met Sota. They had dated for about four months before she eventually introduced him to her nudist lifestyle, which to her supreme relief, he ended up enjoying enough to adopt himself.
After she had revealed her secret, Sota had felt it only fair to reveal his: that he’d once had an incestuous relationship with his sister Keiko. He’d been very nervous about telling her, fearing she’d freak out and run from him, but he thought he owed her the truth. And to his supreme relief, she had not only been okay with it, but had found it extremely arousing. She had wanted to know all the details he could spare, and had been turned on enough that they’d had some of their hottest sex after or sometimes during his stories of fucking Keiko.
Once they’d gotten married and decided to live in her childhood home on Sacred Oaks, as Madeline had never wanted to live anywhere else, they’d decided that since neither of them had a problem with incest they would raise their kids to not have a problem with it either. They had chosen to homeschool them, as Madeline had been, which meant their kids didn’t even need to leave the resort grounds for their education. They had taught their kids a very unique set of life lessons growing up, which they knew were not the lessons most kids were taught: your body is nothing to be ashamed of; sex is always okay, no matter who it’s with, as long as it’s consensual; and no one, not your parents, not society, and not some stupid age of consent law, can tell you when you are or aren’t ready.
When Mina had been younger, her parents had given her the birds and the bees talk, just as most kids got at that age. But then they had given her something most parents definitely did not give their kids: a practical demonstration. Mina had watched her parents have sex in front of her, making sure she had a clear view of everything, and taking the time to answer any questions she had with complete honesty. Over the next few years they had slowly continued Mina’s sex education, letting her watch them again whenever she wanted, teaching her about masturbation, and telling her to let them know when she thought she was ready to try it herself.
They also started letting her spy on the swinger parties they sometimes held in the house, during which they usually sent the kids to stay with their grandparents. They had established a vantage point at the top of the stairs from where Mina could watch without being seen, and from there Mina had observed crowds of her parents’ guests, most of them regular members from the camp, trading off partners and fucking the night away. She still had vivid memories of Daddy getting a blowjob from Mrs. Korvitt while Mom was getting fucked by Mr. Monteverde a short distance away, and hearing Mom telling Mrs. Monteverde between grunts of pleasure what a good fuck her husband was, even as Mrs. Monteverde was in the middle of bouncing on Mr. Driver’s cock. And that was just to name one example. Mina had rubbed herself to some of her most intense orgasms of her adolescent life watching these parties.
Her parents would also sometimes offer to pleasure her physically, always making sure to get her permission before they did anything to her and reminding her that she could always ask them to stop if she ever felt uncomfortable. And sometimes she had in fact started to feel uncomfortable with the way her parents had been fondling her developing breasts or touching between her legs, and she had said so. And true to their word, they had always stopped when she asked, and told her to let them know when she felt ready to do more. Eventually she always did.
She also had begun practicing what she’d learned with boys, and a few girls, from other families at the camp. None of the kids her own age were anywhere near as skilled at pleasuring her as her parents were, however, and not all of them were as willing to respect her boundaries. There had been a few boys who hadn’t wanted to listen when she’d told them she wasn’t ready to go all the way yet, and she’d promptly walked away and stopped seeing them. One particular boy she could remember had been so persistent that she’d been forced to put him in a half-Nelson in order to get him the message.
Finally, when Mina had been about the same age Mamoru was now, she had come to her parents and told them she was ready. She would never forget that night, as her parents had kissed and rubbed and pleasured her all over until she was dripping wet, and then she had lain back on her parents’ bed, her mom lying beside her, holding her hand and whispering words of encouragement, while Dad had knelt between her spread legs. The light of Heaven had seemed to practically be shining on Dad’s cock at that moment.
She could remember how she had bitten her lip and squeezed Mom’s hand as Dad had entered her, and how Mom had squeezed her hand back, stroked her hair and whispered words of comfort until the pain had passed. And then, Dad had begun to move in earnest, slowly at first, then steadily faster as she gradually got used to his girth.
They had even taken a video to commemorate the occasion. It showed every detail of the event, preserved for her to relive at any time. She would always have that scene to remind her, to watch the image of her eyes squeezed shut and her mouth hanging open as she had screamed in ecstacy. Never in her life up to that point had she experienced anything like it.
And after she’d had it, she could never get enough.