1 - 20 of 838 Works in Alexis Castle
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When a case involving sedatives, secrets, and intimacy hits a little too close to home, Kate Beckett finds herself confronting truths she’s been avoiding.
Bringing Richard Castle into her personal life was never part of the plan, but neither was losing control.
Slowish burn. Takes place late Season 3, before Knockout.
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Or, the one in which Castle forgets he’s licensed as a sex therapist until Josh calls him and asks him to fix his relationship with Kate, and everyone severely underestimates how bad an idea that is.
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Kate Beckett is in an abusive marriage. Two years next month. But what happens when famous author Richard Castle moves a floor below with his mother and four-year-old daughter? What happens when Kate's husband Jacob invites Rick and his family over for dinner? Will Kate be able to handle her husband's anger much longer, and what role will Rick play in her story? Will he be her savior or the fuse to her demise?
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Castle and Beckett return to Japan with family and friends for the summer, traveling from Tokyo and outward in the Land of the Rising Sun. As they explore even more of the country, Castle and Beckett look forward to celebrating their ninth anniversary. Forty-ninth in the Beware Of Darkness series. Caskett pairing.
Series
- Part 49 of Beware Of Darkness
- Language:
- English
- Words:
- 160,741
- Chapters:
- 13/?
- Hits:
- 181
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Heart in the Crosshairs by Damn_it_Derek_Hale
Fandoms: Chicago PD (TV), Criminal Minds (US TV)
25 Jan 2026
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Following your one-night stand in Vegas, the BAU arrives in Chicago to assist Hank Voight's team with capturing a serial killer. Charlie Reid has his own agenda, and when he sees you walk into the 21st precinct, he has no intentions of letting you walk away again.
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This is a rewrite of my story Halloween Hunt with a new ending.
Lanie has come up with something fun to do on Halloween night. Lanie, Alexis, and Beckett will go to a remote cabin in the woods and Rick Castle will hunt and try to brutally murder them and they will see who can survive until morning.
Series
- Part 20 of Apervylittleperson1990's Snuff fics
- Part 8 of apervylittleperson1990's Incest Stories
- Part 6 of apervylittleperson1990's impregnation stories
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While interning with Lanie at the morgue Alexis Castle finds herself turned on while watching Lanie perform and autopsy and she begs the medical examiner to perform one on her while she is still alive. Lanie agrees and performs an autopsy on a still living Alexis while narrating the whole thing for a tape recorder like the professional that she is.
Series
- Part 19 of Apervylittleperson1990's Snuff fics
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Alexis believes she is being completely innocuous about her self harm until she is almost caught one night and everything begins to unravel.
PLEASE IM BEGGING READ THE TAGS
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Always With You by RadiantArabianNights28
Fandoms: Castle (TV 2009), Percy Jackson and the Olympians - Rick Riordan
15 Jan 2026
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Castle is not who he said he was. He has been basically on holiday from his crazy family for years. Making a deal with his father to stay with Kate and their three kids. But now his father turns up again saying that it is time for him to leave his family like the Ancient Laws demand. Will Kate forgive him a few years later learning that her children are demigods?
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In Season 4, Episode 7, Cops & Robbers, what if Castle didn’t realise in time that they were going to blow themselves up, and was unable to save himself and Martha from their imminent deaths? What would Alexis, Kate and the team do?
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What if Alexis had met Kate first? When 16-year-old Alexis Castle is witness to an attempted murder, her attachment to Kate Beckett grows as she tries to navigate the trauma, and maybe trying to set Kate up with her dad.
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How Kate Beckett got her Strap-on Back by apervylittleperson1990
Fandoms: Castle (TV 2009)
06 Jan 2026
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This one is for stephanois.
This is a sequel to Alexis Castle Helps out at the 12th.
Lanie had left clear instructions for what Kate had to do in order to get her strap on back from Lanie, so at 8 PM on a Saturday night Kate is standing outside her friend Lanie's apartment in nothing but her raincoat waiting to spend the night being domed by her best friend, things then take an unexpected turn.
Update: I added three new scenes, one between Lanie and Beckett in the Middle, one between Beckett and Alexis near the end, and one between Beckett and Castle at the very end, so you may want to reread and redownload this story.
Series
- Part 1 of apervylittleperson1990's impregnation stories
- Part 2 of The Alexis Castle Helps Out Series
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LA made Hayley rethink her life and who she wanted to spend it with.
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For Christmas Richard Castle buys his 15 year old and always horny daughter the best Christmas gift he can think of, a perinate live in sex slave named Kate Beckett. Alexis loves her gift and Kate is excited to be sold into the Castle house hold because Richard Castle is her favorite writer.
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Alexis Castle decides to give her rich father Richard Castle a birthday present even his money can't buy.
Series
- Part 10 of Apervylittleperson1990's Snuff fics
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The Killing Protocol – The Long Shadow (Book II) by Writer2128
Fandoms: Castle (TV 2009)
28 Nov 2025
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The fallout from Sentinel's destruction has fractured systems across America, exposing buried files and potential new leads. In New York, Castle and Beckett investigate the appearance of a cryptic codeword: Langford-9. In Chicago, Alexis is being watched. The system's glitching. Old ghosts are reemerging. And the shadows are deeper than they seem. Phase Three Begins Now!
Series
- Part 2 of The Killing Protocol Series
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Kate Beckett's favorite way to spend a Friday night is to dress like a cheap slut and go to a bar in a bad part of the city and tease the men there until one of them snaps and rapes her, there is nothing she enjoys more than being raped. When Alexis Castle finds out Beckett's secret she begs to come along one Friday night. So the detective and the college student set out together one night looking forward to a night of fun but Alexis finds something more.
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We both know this is probably the last time I’ll ever see his face, so I try to memorise it. He’s always been a source of comfort for me, even when he got on my nerves with his naive, ignorant attitude, so I look to him for comfort for what I fear might be the last time.
a rewrite of castle season 4 from beckett's pov w additional scenes and slight changes.
most of this won't make sense if you haven't watched castle seasons 1–3 but considering you're about to read a fanfic based on it i'm assuming you have.
TW: see tags
i have no idea what i'm doing and it shows
please don't copy without my permission 🎀 -
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Latest Chapter 10, Kate upon seeing Castle has moved on with Serena Kaye decides to return and claim her man back as Castle belongs to her alone. Only to discover that's not happening and is in for some other major surprises. Not for Kate or Esposito fans in this one.
Like the says the title of a collection for various Castle one shots/small fic ideas when feeling the need to write yet not wanting a new story every time so not scattered everywhere.
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- Part 2 of My Assortment Collection
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After their respective divorces, Castle and Ryan grow closer.
I do not consent to my works being scraped for ai
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Alexis Castle has graduated high school with all A, at the top of her class, she then goes home to the loft to claim the reward that her father promised her four years ago.
Series
- Part 1 of apervylittleperson1990's Incest Stories
- Part 3 of apervylittleperson1990's impregnation stories