Top 7 One-Shot Kastle Fanfics
Ranked by AO3 kudos. Mid-length Kastle fics — short stories under 10,000 words.
ain't nothing but a monster
by nighimpossible
“Is this okay?” she asks, the question just a murmur in the dark. “You’re already close enough to hurt me,” Frank says finally, after chewing on the thought for a long moment. “So hurt me.”
After Visiting Hours
by irishcookie
Karen pushes when she knows she shouldn't. She knows one day someone is going to try to get to the bottom of why she runs toward danger instead of turning her back on it. She just didn't expect that someone to be Frank Castle. She just didn't expect it to be in the middle of the night while she i
to arm your fears like soldiers and slay them
by viansian
Karen had gotten over the whole “soulmates” hype when she was thirteen years old, and she didn’t plan on getting swept up in that shitstorm again anytime soon.aka the soulmate fic you knew was coming.
come upstairs but not to talk
by jazzonia
Frank comes to her straight from the firefight.
even asleep, i think of you
by grootmorning
'Who was she?' was the only thought on Curtis' mind as he watched David pull her into the room where Frank was lying, almost by force.-Frank's sick and he asks for Karen in his delirium.
Fire Meet Gasoline
by xenowhore
And then, insanely, it was nearing midnight and Karen was standing in Frank Castle’s bathroom looking at herself in the chipped mirror. She was wearing one of his old t-shirts and nothing else (it nearly came down to her knees) her blouse and pantyhose folded neatly on the counter, hair undone and f
One More Cup Of Coffee
by blue_girl
A lot of Frank's customers express their annoyance at the unpredictable schedule and abandon him in search of a Starbucks but he somehow manages to acquire a small crowd of regulars, which irritates him for some reason. He vows never to learn their names.He accidentally learns their coffee orders.
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Why Read One-Shot Kastle Fics?
One-shot Kastle fanfics — anything under 10,000 words — are the format of choice for sharp emotional payoffs, single-scene character studies, smutty interludes, and tropes that don't need a full arc to land. You finish them in one sitting.
Ideal for a commute, a lunch break, or right before bed when you don't want to start a 200,000-word fic at 11pm.
About This List
This list of 7one-shot Kastle fanfics spans 35,113 total words. Kudos range from 1,282 on the newest entries to 2,622 on the most established. Nearly all (100%) are complete, so you can start any of them without WIP anxiety. The most common rating is Teen And Up Audiences (4 of 7 fics).
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