1 - 20 of 2,535 Works in Step-Sibling Incest
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“Audrey+Rory till death do we part”
“Promise?”
“Promise” -
DxD: The Unknown Memoir by groundzoom
Fandoms: ハイスクール DxD - 石踏 一榮 | High School DxD - Ishibumi Ichiei
26 Feb 2026
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Issei Hyoudou was an ordinary young man living a normal life within the coastal town of Tidal Recommence alongside his best friends and stepsisters Alicia Hart and Satomi Kimichi. But when dangerous enemies and familiar people from his past start catching up to him, Issei must use the Boosted Gear and his talents to protect his loved ones. Issei x OCs x Harem.
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Vaid Empire: Conquest is a massive ongoing fantasy series that aims to mix erotica with the quality of a published novel. The Series focuses heavily on worldbuilding, story, and characters.
The world of Ayphieal is shattered and chaotic, with kingdoms and tribes of six distinctive races vying for territory amongst themselves. It is only when a young human warrior finally pushes back against the chaos that the world begins to shift towards order.
Having narrowly escaped a brush with death, Dominax dedicates his life to unifying the continent of Magnius under a single Empire by any means necessary, all while striving to conceive a powerful dynasty with his harem.
Series
- Part 1 of The Vaid Empire
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It was difficult living in a dysfunctional family.
We never got along.
He often called me a princess and would make every effort to make my life more difficult. At home, he’d accidentally spill drinks on me or shove my notebooks on to the floor. He’d accidentally use up all the toilet paper and not replace the roll. He’d accidentally throw my bag out the window. He’d accidentally run over my pencil bag.
I tried not to let it bother me, but…
I hated Billy Hargrove.
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Coleman & Reyes, Together Forever by idinathoreau
Fandoms: Freakier Friday, Freaky Friday (2003)
25 Feb 2026
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Merging families is complicated, especially when teenage girls are involved.
Harper and Lily navigate their new relationship as step-sisters; discovering the good, the bad, and the surprising about having someone who is always in your corner, for better or for worse.
CW: eating disorders, near-death experience, death of a parent
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“We can pretend,” she whispers, tugging on him. “Like we used to.”
Or: a step-sibling incest AU.
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Connor’s mom remarries and suddenly he’s got a new little stepbrother, Hudson.
Hudson’s loud, charismatic, and always in Connor’s personal space. What happens one night when Connor realizes that Hudson’s playful banter might just be…flirting?
(Or: Connor discovers how to get Hudson to shut up).
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Unhinged. Just pure unhinged.
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like a caveman seeing tits for the first time! ☆ by mikeywayspetunicorn
Fandoms: My Chemical Romance
25 Feb 2026
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hey chat this is my first ever fanfic be nice to me... i migrated here because i'm lowkey sick of ai and i feel incredibly guilty after trying to distract myself from it's environmental impact
so here's stepbrother gerard. he's stinky, he's gross, he's a degenerate, and he is WAY too old for you. idk if this will be completed. let's see AND PLS gimme advice because i don't even know how to fully work this website
I DON'T CONDONE ANY OF THIS!!! this is all just fantasy and shit... don't fuck your stepsiblings guys... and i just felt like starting this anyway and it's too late to step away from it anyway
i came from janitor ai (my user was angelcakefucked) so if you recognize this plot then hi!!!
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"Max had spotted the bruises Mallory hid. She’d watched Billy grab her too hard in the kitchen and mutter something that made her go stiff. She’d heard sniffles in the bathroom, seen her sister’s red-rimmed eyes when she’d smile thinly and say she’s fine.
She didn’t understand it—not fully. But she knew one thing: this wasn’t a choice. Not anymore…maybe not ever."
Mallory and Max continue surviving in the hell that Billy built. Picks up where Part I left off.
Smutty chapters marked with *
!!DEAD DOVE!! This is a DARK, non-con heavy emotional horror story. Don't like, don't read!
Series
- Part 2 of The Mayfield Roses
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Shirou get's his happy ending with all the ladies.
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Sinners of the Flesh III: Don’t ask me to hate you by PainfullyGothic
Fandoms: Spider-Man - All Media Types, Spider-Man: Spider-Verse (Sony Animated Movies)
23 Feb 2026
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Miguel and Daphne are finally in a relationship, but is this really the last challenge they will face? A double life proves to be more than he can handle, but she sure handles it well...
Series
- Part 3 of Sinners of the Flesh
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Taylor Wilkinson is a fairly normal guy – but fairly unfortunate, after being made redundant from his first job out of college. Still, his severance package was enough to buy a second-hand virtual reality headset… how was he to know that it would transform him into the previous owner?
Contains 3D renders of scenes!
Workskin and format helpfully provided by FEMINYZE_CAPTIONS!
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I'm gonna be putting together a little collection of the (shorter) Ace Attorney porn that I write! requests accepted also if you're interested, must come from the PW or AJ trilogy tho as that's all I've played. happy reading!!
(any important triggers will be addressed in the pre-chapter notes!)
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Josh didn't know what was wrong with his brother. He's gone to school with a cold a bunch of times. His brother always called him a baby if he didn't, what makes today different?
"You always say it's just a cold, Tyler," he chuckled awkwardly, ignoring his brother's iron grip on his shoulder tightening. "I think I'll be fine."
Tyler really didn't want to have this conversation right now. That's what their mom is for. She's an omega, she would know what to say. Why did Josh present so early?
Series
- Part 1 of ABO
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Only at ten, Ivan has to bear room for another one of the many women his father had courted.
Except, Ivan is quickly coming to realize that this particular woman wouldn’t be another brief mother—or more accurately, his father had new plans and this time he would make sure he got the best of it.
Oh… and this new lady did not arrive alone.
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Angelo, Raine and Jack have been step brothers ever since 2006 after the 3 of their mothers became polyamorous lesbians, but now in the middle of 2011 angelo has found out both of his asshole brothers who have spent the last 6 years making his life hell, are in a sexual relationship for god knows how long? Worse? they want him to be a part of it! And even worse? He does not fell opposed to that idea, although he wont admit it to anyone including himself, but both raine and jack have figured that out already, he now has to deal with his brothers doing their best to seduce him into being part of their gay fucked up relationship!
(This sounds like a fuckass incest manga summary god i need to be put down)
- Language:
- English
- Words:
- 778
- Chapters:
- 1/?
- Kudos:
- 2
- Hits:
- 11
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josh pauses, then grins, leaning forward to whisper in tyler’s ear, “if you do well, you’ll get a treat. anything you want.”
“anything?” josh nods. “hmm. for every basket i make, i get to make you cum when i get back home.”
Series
- Part 3 of amoeba
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The Mayfields.
Two new sisters he didn't ask for. Didn't want. Didn't like. The younger one was helpless, and the older one.....
He couldn't stop any of this from happening even if he tried. And God knows he tried.
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Sirius Potter and the Boy Who Became a Beast by notmuchmoretosay
Fandoms: Harry Potter - Fandom, Fantastic Beasts and Where to Find Them - Fandom, Cursed Child - Fandom
22 Feb 2026
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Sirius Potter, son of the Chosen One, is set to be Hogwarts’ first Squib student in history whether the rest of the wizarding world likes it or not.
Nepotism? Yes. Genuine talent? Also yes. Love and support from his huge, chaotic family? Thankfully.
Then there’s his best friend Scorpius Malfoy, who’s always been a little odd, not to mention inconveniently, intensely, hopelessly in love with Sirius, despite their dads being married.
“At 14, his dad got Dark Lords and murdered classmates; Sirius Potter got a platinum blond step-brother with undiagnosed autism.”
Things get even stranger when Scorpius, typical school pariah, suddenly starts getting popular (Quidditch star, Head Boy shoe-in, Slug Club gem, Animagus to be) but finds he’d much rather be a beast than a boy.
Because becoming something else means facing both sides of yourself, and hurts far more when one side’s already hiding in the dark.
Aka. Scorpius is lovesick and dramatic, so naturally he accidentally makes it everyone’s problem.
⚧︎ MAIN SEQUEL 𖤍
Series
- Part 5 of The Hoo-Hoo and the Hare 🏳️🌈🏳️⚧️