100 AI Prompts to Help You Write Fanfiction for Any Fandom

Fanfic Writer's Dream: 100 AI Prompts to Inspire Any Fandom

Fanfiction is where fandoms collide with creativity, giving fans the chance to explore “what if” scenarios, dream pairings, and alternate universes that official stories never dared touch. But sometimes, the spark to start or continue your fic fizzles out—cue the dreaded writer’s block. That’s where AI prompts come in to save the day!

I’ve pulled together 100 prompts to inspire your next fanfic masterpiece. Whether you’re into romantic slow burns, intense battle scenes, or quirky alternate universes, there’s something here for every fandom and trope. Grab your favorite OTP (one true pairing) or crack ship and get writing!

Alternate Universe (AU) Prompts

1. Your characters are rivals on a reality baking show, but one of them is secretly sabotaging the other.
2. They wake up in a world where their superpowers suddenly don’t exist—except for one of them.
3. A coffee shop AU where one character’s a barista and the other keeps ordering increasingly ridiculous drinks just to get their attention.
4. A medieval AU where your OTP must protect the royal family—but one of them has a secret claim to the throne.
5. A “locked in the library” scenario where characters discover their true feelings—and a ghost haunting the stacks.
6. The characters are astronauts exploring an uncharted planet, but it seems oddly familiar to one of them.
7. A world where the villain is the hero, and your main characters have to navigate the role reversal.
8. A soulmate AU where their first words to each other are tattooed on their skin—but the words don’t make sense at first.
9. High school AU where they’re competing to be valedictorian, but their rivalry turns into romance.
10. A fantasy AU where one character is a dragon shapeshifter, and the other is a dragon hunter.

OTP (One True Pairing) and Ship Prompts

11. Character A has been planning to confess their feelings, but Character B beats them to it—with someone else.
12. A rainy day forces your OTP to stay inside and confront an unresolved argument.
13. Character A accidentally sends a love letter meant for Character B to the wrong person. Chaos ensues.
14. A “fake dating” scenario where their fake relationship starts to feel real—but they’re too stubborn to admit it.
15. Your OTP is caught in a time loop, reliving the same fight over and over.
16. Character B is injured during a mission, and Character A has to care for them while trying not to cry.
17. A festival forces them to dance together—despite the fact they claim to hate each other.
18. Character A is cursed to tell the truth for a day, and Character B asks all the wrong (or right) questions.
19. One of them is dared to kiss the other during a party. The dare becomes unforgettable.
20. A love triangle gets messy when both characters discover they’ve been crushing on each other all along.

Angst and Drama Prompts

21. One character’s betrayal is revealed at the worst possible moment.
22. A fight between them escalates, leaving them questioning if they’ll ever speak again.
23. A letter arrives years too late, changing everything they thought they knew about each other.
24. A flashback reveals how their friendship fell apart—and how they might fix it.
25. Character A believes they’ve lost Character B forever, only to find them alive in the enemy’s clutches.
26. A storm forces them to confront old memories they tried to bury.
27. They’re forced to fight each other in a tournament—but neither wants to win.
28. A dangerous mission goes wrong, leaving them stranded and barely speaking.
29. A secret from one character’s past resurfaces, threatening to destroy their bond.
30. One of them is taken hostage, and the other has to decide how far they’ll go to save them.

Fluff and Humor Prompts

31. One character surprises the other with a handmade gift that hilariously goes wrong.
32. A snowstorm traps them in a cabin, and they end up playing ridiculous board games.
33. Character A tries to teach Character B how to bake—and it’s a complete disaster.
34. A pet adoption gone wrong results in the two of them caring for an unusual animal together.
35. A karaoke night turns into an accidental duet that reveals more than expected.
36. Character A gets the hiccups, and Character B can’t stop laughing—or helping.
37. A bet to see who can go the longest without talking to the other backfires hilariously.
38. One of them is dared to wear an embarrassing costume, and the other can’t stop taking pictures.
39. A prank war escalates into the funniest day they’ve ever had.
40. A surprise birthday party leads to some seriously cute moments.

Action and Adventure Prompts

41. A heist goes wrong, forcing them to team up with an unexpected ally.
42. They’re thrown into a deadly game where only one can survive—unless they work together.
43. A treasure hunt reveals more than just riches—like hidden truths about their pasts.
44. They’re stranded in a jungle and have to fight their way out.
45. A rebellion forces them to pick sides, but they both secretly want the same thing.
46. A cursed artifact binds them together, making teamwork a matter of survival.
47. A high-speed chase through the city ends in an unexpected safe haven.
48. An ancient prophecy foretells their partnership—but not their growing feelings.
49. A shipwreck strands them on an island with mysterious creatures.
50. They’re forced to go undercover as a married couple during a dangerous mission.

Crossovers and Mashups Prompts

51. Two fandoms collide when a mysterious portal opens between their universes.
52. Your favorite villain teams up with a hero from another series to stop a greater evil.
53. The characters from one fandom accidentally end up on the set of another fandom’s show.
54. A mashup where a fantasy world gains access to futuristic AI technology from another fandom.
55. A group of mismatched characters must work together to win a high-stakes game show.
56. Two iconic love interests from different fandoms meet, and sparks fly.
57. The antagonist from one fandom swaps places with the hero from another, creating chaos.
58. A heist team from one series is hired to steal an artifact guarded by another fandom’s villain.
59. Two universes merge, and your characters must figure out how to separate them—or keep them united.
60. A group of sidekicks from different fandoms band together for their own adventure.

Meta and Breaking the Fourth Wall Prompts

61. The characters realize they’re in a fanfiction and start arguing with the writer.
62. A character stumbles upon a fan forum where they read theories about themselves.
63. The main character writes their own fanfiction about their life—causing reality to glitch.
64. Two characters debate their ship name, only to discover they’re being shipped by fans.
65. Your characters realize they’re trapped in an unfinished fic and try to get the writer to finish it.
66. A character gets jealous when they discover they have fewer fan edits than others in the fandom.
67. The protagonist accidentally finds a fanfic about themselves and becomes obsessed with changing their narrative.
68. A villain discovers they’ve become a fan favorite and tries to redeem themselves to stay relevant.
69. Your OTP interacts with the creator of their story and begs for a happy ending.
70. The characters accidentally enter a convention celebrating their fandom and must play along.

Time Travel Prompts

71. A character accidentally time-travels to the moment they made their biggest mistake and tries to fix it.
72. Two rivals are sent back in time and must work together to survive.
73. Your OTP is thrown into an alternate timeline where they’ve never met—and must find their way back.
74. The antagonist uses time travel to erase their greatest enemy, but the plan backfires.
75. A mysterious artifact sends the team hurtling through key moments in their world’s history.
76. A character meets their future self, who warns them of an impending catastrophe.
77. The characters must prevent an apocalyptic event but only have 24 hours to do so.
78. A villain tries to rewrite history by defeating the hero before they rise to power.
79. Your OTP keeps running into each other across different centuries, unaware they’re destined to be together.
80. A group of characters travels back to witness the origin of their powers—but finds unexpected truths.

Supernatural and Paranormal Prompts

81. A character discovers they’re haunted by the ghost of someone they once loved.
82. A mysterious mirror shows the characters an alternate version of their lives.
83. A demon offers to fulfill their deepest desire—but the price is too high.
84. One character develops the ability to see ghosts, but they’re not all friendly.
85. A cursed object binds two enemies together, forcing them to confront their past.
86. A character discovers they’ve been reincarnated multiple times and have always known the same person.
87. A werewolf, a vampire, and a witch must team up to defeat a greater threat.
88. The team stumbles upon a town where no one remembers who they are.
89. A mysterious figure grants the characters temporary superpowers—but at a dangerous cost.
90. The antagonist returns from the dead, more powerful than ever before.

Humor and Crackfic Prompts

91. A villain joins the hero’s team because they were bored of losing.
92. Your OTP wakes up in a sitcom and can’t stop laughing at their own laugh track.
93. A character gets superpowers—but they’re completely useless ones, like the ability to smell colors.
94. A magical mishap swaps the personalities of everyone on the team.
95. The characters decide to open a food truck, but none of them can cook.
96. A villain retires to become an influencer, and the heroes can’t decide if it’s a trick.
97. Your OTP enters a karaoke competition, but one of them is terrible at singing.
98. A prank war among the team gets hilariously out of control.
99. The characters compete to see who can survive the longest without using their powers.
100. Everyone becomes obsessed with a ridiculously addictive board game that turns out to be cursed.

Fanfiction is all about taking the stories and characters we love and making them our own. These 100 AI prompts are your gateway to crafting unforgettable fics that your readers will rave about. Whether you’re diving into a soulmate AU, creating a love triangle twist, or plotting an epic showdown, there’s something here for every fandom and style.

So, don’t let writer’s block hold you back. Pick a prompt (or ten), grab a snack, and start writing. Remember, every fic you write adds a little more magic to the fandom universe.

And hey, if you’re feeling stuck or need more inspo, Woke Waves Magazine has your back with even more ideas, writing tips, and fandom love. Tag us when you publish your masterpiece—we’d love to cheer you on. Now, go create some fanfic magic!

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