Incest your Twin Mom and Aunt

Fuumayami

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Imagine a mom, she goes to her twin sister's and brother-in-law's farm. She had let her son stay and work there for the summer to build character. She missed her son and came to surprise him. Brother-in-law tells her that her son is with her sister working at the barn. She slowly makes her way there, she hears strange slapping and moaning noise coming from inside. Once she gets there, she witness the most startling thing!
Her son and aunt having sexual relations! She's awestruck, but later it turns to anger and she begins to expose herself. However, she hears something that stops her in her tracks. She hears her son say, "Fuck mom, your pussy is the best! I love fucking my mom!" and her sister replies, "Yes, fuck me! Fuck your mommy good baby. Oh your making mommy CUM!" It hits her, they are roleplaying. Her son is imagining he's fucking his OWN mom! Her anger turns to curiosity as she watch her son and sister fuck. "Baby, you fuck mommy so good with that big cock of yours! Don't ever stop" "I wanna make you feel good mom, I was born to please you." She starts to get hot and bothered as she slips two fingers down her clit and pleasure herself.
She soon begin to lust after her son, she also gets a little jealous as she wants to be where her twin sister is, being fucked by her own son! "I'm gonna cum mom! I'm gonna cum." "Cum all over Mommy's big breast and face son!" Rubbing her clit and pinching her tit, she just couldn't take it anymore and had the biggest orgasm. In doing so, she let out a huge scream of bliss. She then realized what she had done and looked up to see her son and sister was staring right at her! She didn't look decent, her big breast were out and she had her fingers down her skirt. What next?
 
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I have considered the Mom's twin as an aunt theme and eventually I'll probably write one. The difficulty from my perspective is setting it up with clearly over 18 characters while keeping the story true to the original idea in a believable, or at least plausible way. I've also thought of the same idea with MIL's twin sister. There are a lot of possible plot twists. Like Mom gets revenge on her sister by seducing her nephew, her sister's son. Or mom fooling son into thinking she's her sister to get him to fuck her. And so many more...

Not sure what comes next here. A threesome is obvious. Maybe too much. Mom and aunt competing for his cock? Aunt withdraws in the moment to let he and mom "work it out"? (but nevertheless keeps her relationship with him going).
 
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I did one where the two were nearly completely identical. During a special weekend, the two interchanged roles and places several times. There was a point when the Funky Monkey dance ensued, but neither of them ever let the guy know which one. There was a LOT more to the story, but I've forgotten a lot of it.
 
This reminds me of Bewitched, where Samantha had a dark-haired cousin Serena (also played by Montgomery). While Samantha was quite repressed (how did she put up with Darrin?), Serena was uninhibited. In one episode, Serena had to pretend to be Samantha, blonde hair and all. Sound like a good exercise for an acting class. Also, might make a good story on Lit. I don't remember how Darrin reacted to it all.

https://i.ytimg.com/vi/D7uWlIlBAhA/maxresdefault.jpg
 
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One of these days I'm gonna write such a story.

"Fuck yo momma's cunt."

It seems like this is all you want.
 
While the clothes and hairdo are important, it's really the body language, tone of voice, etc., that makes sets them apart.

 
As the idea seems hot, I think a more fun way would if the son would mistake the mom for her sister and make a move on her. Maybe it starts innocently enough for her to not notice that somethings wrong only for the thinks to 'worsen' gradually - e.g. going from "he had to miss me, if he hugs me so tightly" to "where is his hands going?" [to her ass] to "that's not a kiss mom and son should share". But as her son is taking more and more liberty with her, she became horny and lets him do it. Until he says something like "gosh, today you're playing her role perfectly" and she's like "well, that's not really an incest if he don't know I'm his mom".
 
Imagine a mom, she goes to her twin sister's and brother-in-law's farm. She had let her son stay and work there for the summer to build character. She missed her son and came to surprise him. Brother-in-law tells her that her son is with her sister working at the barn. She slowly makes her way there, she hears strange slapping and moaning noise coming from inside. Once she gets there, she witness the most startling thing!
Her son and aunt having sexual relations! She's awestruck, but later it turns to anger and she begins to expose herself. However, she hears something that stops her in her tracks. She hears her son say, "Fuck mom, your pussy is the best! I love fucking my mom!" and her sister replies, "Yes, fuck me! Fuck your mommy good baby. Oh your making mommy CUM!" It hits her, they are roleplaying. Her son is imagining he's fucking his OWN mom! Her anger turns to curiosity as she watch her son and sister fuck. "Baby, you fuck mommy so good with that big cock of yours! Don't ever stop" "I wanna make you feel good mom, I was born to please you." She starts to get hot and bothered as she slips two fingers down her clit and pleasure herself.
She soon begin to lust after her son, she also gets a little jealous as she wants to be where her twin sister is, being fucked by her own son! "I'm gonna cum mom! I'm gonna cum." "Cum all over Mommy's big breast and face son!" Rubbing her clit and pinching her tit, she just couldn't take it anymore and had the biggest orgasm. In doing so, she let out a huge scream of bliss. She then realized what she had done and looked up to see her son and sister was staring right at her! She didn't look decent, her big breast were out and she had her fingers down her skirt. What next?
I recommend ending with the son and aunt seeing her watching them and lead into a part 2 where the sexual tension is ripe and ends with the son fucking his mom while the aunt watches, and ends with either a threesome or a foursome with the brother-in-law fucking the mom while the son fucks his aunt, or have a threesome where the uncle is watching as a cuckold, and add in an epilogue that the mother and son return home and start sleeping together every night, resulting in him getting her pregnant, or have her already be pregnant during the threesome and have the aunt call them with the news that she's also pregnant.
 
Yeah, the threesome would be expected and pretty tropey.

Yeah, it's her nephew but I'd turn it into a cheating story where as mom discovers the liaison, the aunts husband walks up and sees it too. Stunned, he steps back with his hands over his face.

"I don't fucking believe it. After everything I've done for her."

Near rage herself, mom looks at her BIL and then reaches out and grabs his cock through his jeans. He starts and looks at her, shocked. She grins wickedly. "Maybe revenge is a dish best served hot?"

Aunt walks back in the house and hears them in the bedroom. She rushes to the door to see her strapping husband just plowing her sister, who is wailing in pleasure. They are like a couple of wild animals. She hears him moan, "Oh baby, that's so good."

She rushes in, "John, that's not me, that's Janey!"

Without stopping he turns to look at her with his teeth bared in a snarl. "I know!" he growls.
 
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Yeah, the threesome would be expected and pretty tropey.

Yeah, it's her nephew but I'd turn it into a cheating story where as mom discovers the liaison, the aunts husband walks up and sees it too. Stunned, he steps back with his hands over his face.

"I don't fucking believe it. After everything I've done for her."

Near rage herself, mom looks at her BIL and then reaches out and grabs his cock through his jeans. He starts and looks at her, shocked. She grins wickedly. "Maybe revenge is a dish best served hot?"

Aunt walks back in the house and hears them in the bedroom. She rushes to the door to see her strapping husband just plowing her sister, who is wailing in pleasure. They are like a couple of wild animals. "She hears him moan, "Oh baby, that's so good."

She rushes in, "John, that's not me, that's Janey!"

Without stopping he turns to look at her with his teeth bared in a snarl. "I know!" he growls.
Yeah, and Brother in Law shouldn't be left out of the incest too. Maybe his country daughter joins in. He fills up his sister in law and daughters pussy.
 
To bad there's not a nephew for mom she could take on her nephew and her brother in-law
 
A good set up for this could be that aunt still holds a grudge against mom for kind of stealing her boyfriend away - who became mom's husband and the son's father.

Aunt was really into him and they went out on a few dates but after meeting Mom and hanging out, aunt's relationship with him slowly deteriorated. They got married and had son.

Son...looks JUST like his father.

Great opportunity for aunt to swoop in for some payback. Loving, sexual, truly caring payback in that she actually does care about her nephew and wants him for more than payback. But it makes it sweeter.
 
It’s a good story line. I can think of an interesting way to develop it, but not in the farm setting though. Certainly the two identical girls swapping places. With the mother knowing, but the aunt unaware until afterwards.

Lucy
 
Imagine a mom, she goes to her twin sister's and brother-in-law's farm. She had let her son stay and work there for the summer to build character. She missed her son and came to surprise him. Brother-in-law tells her that her son is with her sister working at the barn. She slowly makes her way there, she hears strange slapping and moaning noise coming from inside. Once she gets there, she witness the most startling thing!
Her son and aunt having sexual relations! She's awestruck, but later it turns to anger and she begins to expose herself. However, she hears something that stops her in her tracks. She hears her son say, "Fuck mom, your pussy is the best! I love fucking my mom!" and her sister replies, "Yes, fuck me! Fuck your mommy good baby. Oh your making mommy CUM!" It hits her, they are roleplaying. Her son is imagining he's fucking his OWN mom! Her anger turns to curiosity as she watch her son and sister fuck. "Baby, you fuck mommy so good with that big cock of yours! Don't ever stop" "I wanna make you feel good mom, I was born to please you." She starts to get hot and bothered as she slips two fingers down her clit and pleasure herself.
She soon begin to lust after her son, she also gets a little jealous as she wants to be where her twin sister is, being fucked by her own son! "I'm gonna cum mom! I'm gonna cum." "Cum all over Mommy's big breast and face son!" Rubbing her clit and pinching her tit, she just couldn't take it anymore and had the biggest orgasm. In doing so, she let out a huge scream of bliss. She then realized what she had done and looked up to see her son and sister was staring right at her! She didn't look decent, her big breast were out and she had her fingers down her skirt. What next?
So hot
 
I'm not really into conflict or deceipt.

Let's say Mom recognizes the attraction her son is developing. It isn't exactly un-mutual as they've seen each other often around the family pool and have had many a clear view of each other's bodies. Mom wants to do something, but not THAT.

Her sister is as close to an exact twin as is genetically possible. Most people in public can't tell them apart and it's even more difficult when they dress alike. Hell, even some of the family can't tell them apart in swimwear.

Mom arranges for her son to enjoy her by proxy in the form of her sister, his aunt. And yes, she's there to watch it all unfold. As nearly identical twins sometimes do, they often 'feel' what each other does when very near each other. As her sister is sucking her son's cock, her mouth is making similar movements. As she watches her son enter her sister's cunt, she can 'feel' it also and her naked body begins to writhe in time with theirs.
 
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Another twist with non-identical sisters. Mam is sort of frumpy, not really into herself and sex in general. She does it out of duty and is more or less mechanical. Doesn't really dress well either.

But her sister is totally different. She turned into the slut and toned herself accordingly. Always dressed impeccably to impress.

After her daughter turned 18, she took more after the aunt and spent a lot of time learning her secrets and methods. Mom was so impressed that when her son turned 18 she sent him to live with his aunt for year.

Aunt Nancy takes him under her wing, her dresses and her bedsheets.

Maybe even his sister visits for a couple of weekends.
 
Aunt Nancy never outwardly appears to be the slut she is in private. Her outfits are always classy and proper, tailored suits, designer dresses and gowns, pearl necklaces, gold bracelets and gemstone rings. Hair and nails professionally done. Conducts herself almost Matronly in public and at her office as a company executive.

But under those suits, dresses and gowns, she's always wearing stockings and classy lingerie with style and care. It takes her longer to don and remove her underthings than her outer wear.

And both her niece and nephew have learned to help her do both, dressing her and undressing her from the skin out.
 
Aunt Nancy never outwardly appears to be the slut she is in private. Her outfits are always classy and proper, tailored suits, designer dresses and gowns, pearl necklaces, gold bracelets and gemstone rings. Hair and nails professionally done. Conducts herself almost Matronly in public and at her office as a company executive.

But under those suits, dresses and gowns, she's always wearing stockings and classy lingerie with style and care. It takes her longer to don and remove her underthings than her outer wear.

And both her niece and nephew have learned to help her do both, dressing her and undressing her from the skin out.
I can't get the flow right. It jumps from event to event with not much in between to fill out the story and the reasoning.
 
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