Twincest FanFiction

Random TSAMS oneshots!

Random TSAMS oneshots!

F/F
F/M
M/M
Multi
G
Updated
11.04.2025
Fandom
Security Breach Shows - SunMoonShow (Web Series)
Characters
Original Male Character(s), Bloodmoon (Security Breach Shows - Web Series), Cured Ruin Eclipse (Security Breach Shows - Web Series), Bloodmoon/Cured Ruin Eclipse (Security Breach Shows - Web Series), Earth/Eclipse (Security Breach Shows - Web Series), Gemini/Lunar (Security Breach Shows - Web Series), Solar/Dewdrop, Bloodmoon/Bloodmoon (Security Breach Shows - Web Series), Earth (Security Breach Shows - Web Series), Lunar (Security Breach Shows - Web Series), Dewdrop (original TSAMS oc), Scythe (Security Breach Shows - Web Series),
Tags
Smut Fluff Angst Other Additional Tags to Be Added Bloodmoon twins are Scythe and Harvest Scythe is the crazy one Harvest is the smart one Dewdrop is the 'cured' Ruin He's also Ruin's twin Age Regression/De-Aging Twincest Possible Character Death
First post here teehee :) Please read the tags as they come out :)Will take requests! (please request-)
The True Baratheon Heir

The True Baratheon Heir

F/F
G
Updated
11.04.2025
Fandom
Game of Thrones (TV)
Characters
Arya Stark, Jon Snow, Ned Stark, Robb Stark, Sansa Stark, Bran Stark, Rickon Stark, Catelyn Tully Stark, Varys (A Song of Ice and Fire), Tywin Lannister, Jaime Lannister, Cersei Lannister,
Tags
Incest Sibling Incest Twincest Girl Penis POV Original Female Character Parent/Child Incest Regicide Cersei Lannister Has Children by Robert Baratheon Girl Penis Cassiopeia Baratheon Cersei Lannister and Robert Baratheon's Dead Son Had A Twin Sister Endgame Parent-Child Relationship House Baratheon (A Song of Ice and Fire)
Princess Cassiopeia Baratheon, the only true child of Robert Baratheon and Cersei Lannister, admits a secret she's been holding onto for years to her Mother. How will this secret and Cassiopeia and Cersei's actions change their future and the future...
Redhead Jokers

Redhead Jokers

F/F
G
Updated
11.04.2025
Fandom
Gotham (TV)
Characters
Jim Gordon (DCU), Leslie Thompkins, Jeremiah Valeska/Jerome Valeska, Female Jeremiah Valeska/Female Jerome Valeska, Female Jerome Valeska/Female Jeremiah Valeska, Jerome Valeska, Jeremiah Valeska, Female Jerome Valeska - Character, Female Jeremiah Valeska - Character, Lila Valeska, Paul Cicero, Haly's Circus Ringmaster (Gotham),
Tags
Alternate Universe - Canon Divergence Incest Sibling Incest Twincest Sister/Sister Incest Gotham (TV) Season/Series 01
Once upon a time, in a circus, in Haley’s Circus, there were two twin girls with reddish orangish copper hair and brown and green eyes, bright smiles and clear laughs. Everyone hated them. Now the children are women and are the infamous Female Joker...
There is no escape. We are always in control, even if you believe otherwise.

There is no escape. We are always in control, even if you believe otherwise.

F/M
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, James Potter/Lily Evans Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Astoria Greengrass, Ginny Weasley, Molly Weasley, Arthur Weasley, Albus Dumbledore, Gellert Grindelwald, Harry Potter/Ginny Weasley,
Tags
Family Drama Siblings Murder Memory Alteration Alternate Universe Dark Dark Magic Family Issues Twincest Immortality Unhappy Ending Why Did I Write This?
Albus Dumbledore and Gellert Grindelwald never abandoned their plans for world domination, but they did alter them with the help of Amarantha and Lysander, the Lancaster twins. The four of them now had complete control over the world. Sometimes, thou...
Invisible String

Invisible String

F/M
M/M
Multi
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Remus Lupin, Sirius Black, James Potter, Marlene McKinnon, Dorcas Meadowes, Evan Rosier, Barty Crouch Jr., Barty Crouch Jr./Evan Rosier, Pandora Rosier, Poppy Pomfrey, Barty Crouch Jr./Evan Rosier/Pandora Rosier (eventually),
Tags
No Beta Twincest Chaotic Barty Crouch Jr. rosier twins Title from a Taylor Swift Song Blackcest (Harry Potter) Barty Crouch Jr. is a little clueless
The Rosier twins get sick when they're separated for too long.Fuck JKR, I don't own the characters or the title.
Risky Love of suicide

Risky Love of suicide

F/M
M/M
Multi
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Draco Malfoy/Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Neville Longbottom, Harry Potter/Severus Snape, Hermione Granger/Ron Weasley, Neville Longbottom/Harry Potter, Fred Weasley/George Weasley, Harry Potter/Fred Weasley/George Weasley, Draco Malfoy/Harry Potter/Severus Snape
Tags
Mutual Masturbation Loss of Virginity Suicidal Thoughts Anal Sex Oral Sex Masturbation Sex Toys Implied/Referenced Suicide Suicide Attempt Hermaphrodites Vaginal Sex Public Sex
What happens when a suicidal Harry Potter and a suicidal Draco Malfoy comes back to Hogwarts for their 8th year? Can they save each other from their own minds or is the temptation of death to strong? Or will a few others help them both forget
For The Greater Good

For The Greater Good

M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Tom Riddle, Harry Potter/Tom Riddle, Petunia Evans Dursley, Vernon Dursley
Tags
Mind Manipulation Soul Bond Slytherin Harry Potter Magically Powerful Harry Potter Twincest Possessive Tom Riddle Obsessive Tom Riddle Metamorphmagus Harry Potter Harry Potter is a Horcrux Manipulative Tom Riddle Bottom Harry Potter Time Travelling Harry Potter
"Over here! There's a trail of blood leading to the bushes!" A voice shouted nearby. Harry's eyes jerked open, and he recoiled further in the bush."Please let me die. I can't go back there. Just take me now." He begged the sky. "I just want to have a...
How am I supposed to be a Dad?

How am I supposed to be a Dad?

M/M
Multi
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Marvel Cinematic Universe The Avengers (Marvel Movies)
Characters
Harry Potter, Tony Stark, James "Bucky" Barnes/Steve Rogers, Steve Rogers, James Potter, Fred Weasley, George Weasley, Steve Rogers/Tony Stark, James "Bucky" Barnes/Tony Stark, James "Bucky" Barnes/Steve Rogers/Tony Stark, Lucky (Hawkeye), Harry Potter/Fred Weasley/George Weasley
Tags
Alternate Universe - Canon Divergence Hurt/Comfort Tony Stark Has a Heart Post-Traumatic Stress Disorder - PTSD Parent Tony Stark Emotional Hurt/Comfort Mpreg Polyamory Child Abuse Alternate Universe Twincest Deaf Clint Barton
After having a bad summer, Harry goes to Gringots to get a new vault key. In doing so, he finds out family secrets that were buried with his supposed parents. He reaches out to his biological father for help, only for neither of them to know how to b...
grabby hands

grabby hands

M/M
G
Updated
19.04.2025
Characters
Fred Weasley, George Weasley, Percy Weasley, Fred Weasley/George Weasley/Percy Weasley
Tags
Fluff Brotherly Love Sibling Incest Boys Kissing Underage Kissing Twincest Weasleycest (Harry Potter) sharing is caring
Percy knew they were being naughty; brothers shouldn’t touch each other this way.   That’s why they were huddled under the covers, hiding in Fred and Georgie’s room—the rest of the house long asleep.
the Sun, the Moon, the Sea

the Sun, the Moon, the Sea

F/F
G
Updated
12.04.2025
Fandom
鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime)
Characters
Kokushibou | Tsugikuni Michikatsu, Tsugikuni Yoriichi, Kokushibou | Tsugikuni Michikatsu/Tsugikuni Yoriichi
Tags
Alternate Universe - Modern Setting Incest Lesbian Sex Twincest Female Characters Genderswap Female Yoriichi Female Michikatsu
a teeny-tiny glimpse of fem!Michi&Yori having sex on the beach
Keep Me In Your Memory

Keep Me In Your Memory

F/F
F/M
M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Female Character(s), Original Male Character(s), Harry Potter, Minerva McGonagall, Severus Snape, Draco Malfoy/Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Tom Riddle | Voldemort, Molly Weasley,
Tags
Smut Fluff Family Friends to Lovers Betrayal Hurt/Comfort Implied/Referenced Self-Harm Implied/Referenced Child Abuse Implied/Referenced Character Death Romance Twincest Rewrite
Second year at Hogwarts begins for the Potter twins, the reminder of last year still fresh in both of their minds. With a different mind set from last year, Harry is lost as to what he should do, should he continue on as he had been, or try to change...
Thirty Days of Wolf-Girl 2015

Thirty Days of Wolf-Girl 2015

F/F
F/M
M/M
Multi
Other
G
Updated
13.04.2025
Fandom
A Song of Ice and Fire & Related Fandoms Game of Thrones (TV) A Song of Ice and Fire - George R. R. Martin
Characters
Sansa Stark, Tywin Lannister, Jaime Lannister, Cersei Lannister, Cersei Lannister/Jaime Lannister, Cersei Lannister/Jaime Lannister/Sansa Stark, Cersei Lannister/Sansa Stark, Tywin Lannister/Sansa Stark, Tywin Lannister & Sansa Stark
Tags
Spanking Incest Oral Sex Dom/sub Whipping BDSM Older Man/Younger Woman Polyamory Drug Use Public Sex Threesome Bondage
A drabble a day for the month of November, all set in the world of _The Wolf-Girl Who Longed for the Sun_. Consider it a box of salacious bonbons. Enjoy.
San Francisco (You Got Me)

San Francisco (You Got Me)

F/F
F/M
M/M
Multi
Other
G
Updated
13.04.2025
Fandom
A Song of Ice and Fire & Related Fandoms Game of Thrones (TV) A Song of Ice and Fire - George R. R. Martin
Characters
Sansa Stark, Jaime Lannister, Cersei Lannister, Cersei Lannister/Jaime Lannister, Arthur Dayne, Jaime Lannister/Sansa Stark, Cersei Lannister/Jaime Lannister/Sansa Stark, Cersei Lannister/Sansa Stark, Arthur Dayne/Jaime Lannister, Satin Flowers, Satin (Game of Thrones)
Tags
Rough Sex Spanking Exhibitionism Threesome - F/F/M Anal Sex Oral Sex Vibrators Knives Whipping BDSM Older Man/Younger Woman Polyamory
Somewhere in another space and time, our pride takes a trip to the most lecherous place on Earth; The Folsom Street Fair. Lust, delicious cruelty, luxury, public depravity and lemon cakes.A companion story to _The Wolf-Girl Who Longed for the Sun_.