Cousin Incest FanFiction

The choices we make

The choices we make

F/F
F/M
Multi
G
Updated
11.04.2025
Fandom
House of the Dragon (TV) A Song of Ice and Fire & Related Fandoms Game of Thrones (TV)
Characters
Maegor I Targaryen/Tyanna of the Tower, Alys Harroway/Maegor I Targaryen, Ceryse Hightower/Maegor I Targaryen, Melony Piper/Rhaena Targaryen (Daughter of Aenys I), Maegor I Targaryen, Alyssa Velaryon, Alysanne Targaryen, Melony Piper, Rhaena Targaryen (Daughter of Aenys I), Aegon Targaryen (Son of Aenys I), Jaehaerys I Targaryen, Tyanna of the Tower (A Song of Ice and Fire),
Tags
Alternate Universe - Canon Divergence Targcest | Targaryen Incest (A Song of Ice and Fire) Child Murder Motherhood Incest Dysfunctional Family Pregnancy Family Drama Character Death Dead Dove: Do Not Eat Implied/Referenced Character Death Canonical Character Death
Prince Maegor's exile and the subsequent hasty marriage between Princess Rhaena and her brother Aegon confounds the realm. The decisions of House Targaryen had always been strange, questionable, but none like this. No one imagined the secret behind i...
It runs in our blood

It runs in our blood

F/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Female Character(s), Tom Riddle/Original Female Character(s), Albus Dumbledore, Tom Riddle, Abraxas Malfoy, Mulciber Sr. | Tom Riddle's Schoolmate, Antonin Dolohov, Walburga Black, Horace Slughorn, Alphard Black, Cygnus Black III | Walburga Black's Brother, Druella Rosier Black,
Tags
Angst Slow Burn Murder Religious Guilt canon-divergence Implied/Referenced Rape/Non-con Dead Dove: Do Not Eat Childhood Trauma Enemies to Lovers Drug Use Sexual Abuse Dark Magic
Heirs to a dead family. One that once held a power and a reputation that both craved. Cecilia and Tom were born as copies of their muggle parents in both name and appearance, but their powers and abilities came from Salazar Slytherin himself. With mu...
Dear Tilly.

Dear Tilly.

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Fantastic Beasts and Where to Find Them (Movies)
Characters
Lestrange Family (Harry Potter), Jodelle Volant/Floxel Lestrange, Fulcran Lestrange III/Quintilla Lestrange, Cyrille Lestrange III/Luminosa Trouche Lestrange, Jodelle Volant-centric, we hate jkr and fulcran iii here, WHO MARRIES THEIR COUSIN'S DAUGHTER? oh wait daemon targaryen-, UNRELATED - Character, The author has not beta read this and is running on pure spite, Nozea Lestrange, Floxel Lestrange
Tags
Incest I Wrote This Instead of Sleeping Cousin Incest fuck fulcran iii technically cousin but not cousins since fulcran iii is quintilla's dad's cousin? lestrange family - french branch they need to be talked about more Early marriage
Jodelle Lestrange, formerly Jodelle Volant, is Floxel Lestrange's wife and Quintilla Lestrange's mother. She has constantly felt disappointed for not being able to have more children after Quintilla, yet dotes on her only child. She doesn't want Fulc...
Three Sentence Ficathon 2025 Fills

Three Sentence Ficathon 2025 Fills

F/F
F/M
Gen
M/M
Multi
G
Updated
11.04.2025
Fandom
Warhammer Fantasy Fate/Grand Order Warhammer 40k (Novels) - Various Authors
Characters
Original Don Quixote & Sancho (Limbus Company), Klara | Clara/Julia Luricheva | Yulia Lyuricheva, Grimm/Kuti (Black Souls), Grimm & Node (Black Souls), Don Quixote | Sancho/Sansón Carrasco(Limbus Company), My Unit | Byleth/Hubert von Vestra, Edelgard von Hresvelg/My Unit | Byleth/Hubert von Vestra, Roland/Angelica (Library of Ruina), Hermann/Ahab (Limbus Company), Lorgar Aurelian/Kor Phaeron, Edelgard von Hresvelg/Hubert von Vestra, Altria Caster | Caster & Morgan | Berserker,
Tags
Headcanon Rape/Non-con Elements Polyamory Drabble Collection Child Abuse Starvation Vomiting Backstory Cousin Incest 3 Sentence Ficathon 3 Sentence Fiction Run-On Sentences
Prompt fills for the 2025 3-sentence Ficathon.
A House Already Divided Has Plenty Of Room To Fall

A House Already Divided Has Plenty Of Room To Fall

Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Severus Snape,
Tags
Domestic Violence Canon-Typical Violence Consensual Underage Sex Period-Typical Homophobia Homophobic Language Child Abuse Sibling Incest Arranged Marriage Marauders Era (Harry Potter) Hogwarts Underage Drinking Pureblood Culture (Harry Potter)
Narcissa Black is a good student, but she has one weakness;Radolphus Potter.She knows her family has already lost it at Sirius running away, and Andromeda marrying Ted, so why make it worse?Narcissa tried to fight the feelings, trying to let it be a...
Please, please, please (Don’t prove i’m right)

Please, please, please (Don’t prove i’m right)

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Sirius Black, Lucius Malfoy, Narcissa Black Malfoy, Walburga Black, Orion Black, Druella Rosier Black, Black Family (Harry Potter), Sirius Black/Narcissa Black Malfoy
Tags
Smut Developing Relationship Incest Fluff and Smut Fix-It of Sorts No Beta My First Fanfic Pureblood Culture (Harry Potter) My First Work in This Fandom Protective Sirius Black Pureblood Society (Harry Potter) Cousin Incest
Narcissa didn’t even looked like a Black, and Sirius was the epitome of one. His hair was black and curly and hers was blonde and straight, his eyes were gray like a devastating storm and hers were the most perfect blue sky, an entanglement of stars....
The Swan and the Serpent *ABANDONED FIC*

The Swan and the Serpent *ABANDONED FIC*

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Characters, Harry Potter, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Lucius Malfoy, Tom Riddle | Voldemort, Narcissa Black Malfoy, Blaise Zabini, Bellatrix Black Lestrange, Pansy Parkinson,
Tags
Alternate Universe - Canon Divergence Depression Suicidal Thoughts Canon-Typical Violence Other Additional Tags to Be Added Post-Traumatic Stress Disorder - PTSD Emotional Hurt/Comfort Implied/Referenced Self-Harm Implied/Referenced Child Abuse Found Family Non-Consensual Drug Use Canonical Character Death
This fic is officially abandoned. I will possibly rewrite it, but as of now, it is abandoned!
The Blossoming Heir of Black

The Blossoming Heir of Black

F/F
F/M
M/M
Multi
Other
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, James Potter/Lily Evans Potter, Sirius Black/Original Female Character(s), Regulus Black/Hermione Granger, Hermione Granger/Severus Snape, Harry Potter/Reader, Harry Potter/Original Female Character(s), Regulus Black/Original Female Character(s), Fred Weasley & George Weasley, Harry Potter Characters & Original Female Character(s), Bill Weasley & Charlie Weasley, Regulus Black/Hermione Granger/Severus Snape
Tags
Forced Marriage Forced Pregnancy Threesome - F/F/M Unrequited Love Threesome - F/M/M Forced Relationship Love Triangles Cousin Incest Foursome - F/M/M/M
The first Wizarding war ends with the victory of the 'Light' and the start of a new Wizarding world.16 years later, Regulus Black gets an invitation to a ball to celebrate the 16th anniversary of the 'Winning'. The ball is also supposed to be the deb...
protected by stars

protected by stars

F/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Minor or Background Relationship(s), Walburga Black, Orion Black, Black Family (Harry Potter), Orion Black/Walburga Black
Tags
Possessive Behavior Obsessive Behavior Pureblood Culture (Harry Potter) Cousin Incest Wizarding Culture (Harry Potter) Good Walburga Black Good Orion Black
Even as early as four, Orion knew Walburga is the only one for him. And like his Mother, Orion would never settle for less.
What The Water Gave Me

What The Water Gave Me

F/M
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Male Character(s), James Sirius Potter, Weasley Family (Harry Potter), Teddy Lupin, Dominique Weasley, Victoire Weasley, Dominique Weasley/Original Male Character(s), James Sirius Potter/Dominique Weasley, Charlie Weasley/Dominique Weasley, Theodore Nott/Dominique Weasley
Tags
Rough Sex Sibling Rivalry Sex Work Older Man/Younger Woman Underage Sex - Freeform Cheating Uncle/Niece Incest Mental Health Issues Wizarding World (Harry Potter) Family Issues Cousin Incest Strippers & Strip Clubs
She breathes, in and out, in and out, her eyes still closed, her entire body almost numb, the outside world barely existing, and she holds her breath and she falls down into the wave.
Clash of Wills

Clash of Wills

F/F
F/M
G
Updated
12.04.2025
Fandom
A Song of Ice and Fire & Related Fandoms Game of Thrones (TV) A Song of Ice and Fire - George R. R. Martin
Characters
Arya Stark, Jon Snow, Sansa Stark, Original House Stark Character(s), Tyrion Lannister, Daenerys Targaryen, Margaery Tyrell, Jon Snow/Sansa Stark, Davos Seaworth, Olenna Tyrell, Ellaria Sand, Jorah Mormont,
Tags
Alternate Universe - Canon Divergence Post-Traumatic Stress Disorder - PTSD Fix-It Angst and Fluff and Smut Cousin Incest Game of Thrones Alternate Season 08 Queen Daenerys Targaryen Daenerys Targaryen Is Not a Mad Queen Daenerys Targaryen Lives Bisexual Daenerys Targaryen Daenerys Targaryen Deserves Better R Plus L Equals J
Lady Margaery Tyrell, wife of three kings and the Dragon Queen's lover, is sent to Harrenhal to negotiate with Sansa Stark, the wife of King Jon Snow of the North. As those two former friends reunite, the realm waits with stilled breath.As those two...