Best Long Fake Marriage Fanfics
Fake Marriage fanfics from 50k to 100k words — full novel length with room for slow development. Curated from AO3, ranked by kudos.
Top 12 Long Fake Marriage Fanfics
Ranked by AO3 kudos. Each fic is tagged with fake marriage and falls in the 50,000–100,000 words range.
The Game Plan
by FestiveFerret
Shane Hollander is the number two overall NHL draft pick and a newly minted Montreal Voyageur. He’s also laser focused on his goals: being the best by beating the best. For him, this means a continued rivalry with number one draft pick—and new Ottawa Centaur—Ilya Rozanov. But when a problem with Roz
a sequence that you never learned
by annataylor
"'Spock,' Jim breathes out, completely overwhelmed by the gesture—not quite believing that Spock knows him so well, that's he's already started researching, that he trusts Jim with a member of his own endangered species." When Jim gets it in his head to adopt an eight year old Vulcan, Spock present
Boomerangs and Rainbows
by mindbending
At Sokka’s behest, the Gaang skips rescuing Zuko during the Siege at the North Pole. Instead they leave him, unconscious, buried in the snow.In completely unrelated news, Sokka’s haunted by a ghost now. (If you'd like more details before deciding to read this story, look here for spoilers.)
Homesick at Space Camp
by K0bot
Lance realizes he's been an asshole to Keith, and on a diplomatic mission to a key planet for the Voltron alliance he... overcompensates.
We Are So (Not) Married
by MikeWritesThings (orphan_account)
In which everyone thinks Hizashi and Shouta are married due to an incident and while the nation is struggling to decide if this is a good or bad thing, Hizashi's struggling with the urge to say out loud, "Damn, I wish we were actually married, though."
Spyderwebs
by surveycorpsjean
Katsuki and Izuku are tasked with an undercover mission as a couple aboard a luxury cruise ship. The problem is, they haven't seen each other in years.
the cost of a thing
by quiettewandering
16 months ago, Cas became human. 12 months ago, Cas left the bunker and a broken-hearted Dean behind.Now they must work a case together, where married couples are dying mysterious deaths and the only way to earn the neighbors' trust is by pretending to be married. Slowly, Dean finds that he loves be
Always
by ninjamanda
Penelope Featherington has always dreamt of the day she would marry her best friend, Colin Bridgerton.What she didn't realize is that she would be marrying him for obligation, not for love. At least, not at first...** Slow burn taking place directly after the events of season 2, fic now complete**
unorphaned (in our northern lights)
by morningsound15
Faith doesn’t notice anything strange until the next morning, when they wake up in bed together. In another time. In another world. In a world where they’re married and living together and raising Buffy’s little sis and everyone’s walking around treating the situation like it’s fine and good and nor
Where Our Shadows Come to the Shore
by gildedruin
When Penelope Featherington is dragged from her bed in the middle of the night, she’s told that her nom-de-plume has been uncovered. Not by the Queen as she’d feared, but by the men who murdered her father. There are debts to be paid far beyond her Whistledown earnings. Fortunately for Penelope, a m
A Proper Lady's Guide To Marriage
by thatg00by
Yor Briar, a socially awkward yet captivating woman, enters high society under pressure to secure a marriage. Loid Forger, a composed and calculating nobleman with a hidden agenda, needs a respectable wife to advance his covert mission within the aristocracy. Their arrangement begins as a convenient
Boundless as the Sea
by kellysrose
There are things he cannot do. Field work is one of those things. Is supposed to be one of those things. Or: Q and James are sent to a small town on the coast of Ireland to pose as a couple as they locate a double agent and cybercriminal. The strength of their proximity draws old wounds to the sur
More Long Fake Marriage Fics on AO3
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About Fake Marriage
Fake dating's higher-stakes sibling: characters marry for visas, inheritances, insurance, or undercover assignments, and must perform an entire domestic life convincingly. Rings, shared addresses, and in-laws make this lie far harder to compartmentalize than a few staged dates.
The performance demands real intimacy — shared beds, learned habits, convincing tenderness — until neither party can locate the line where pretending stops.
Common scenarios: A green-card marriage between coworkers that survives the immigration interview but not the feelings, or undercover agents whose suburban cover marriage outperforms their real relationships.
About This List
This list of 12long Fake Marriage fanfics spans 822,001 total words. Kudos range from 116 on the newest entries to 32,368 on the most established. 75% are marked complete — check the status flag before committing to a longfic. The most common rating is Explicit (6 of 12 fics).
Recurring tags across this list: Fake Marriage · Slow Burn · Alternate Universe - Canon Divergence · Fake/Pretend Relationship · Mutual Pining.
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