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When her thirteen-year-old son announces he wants to learn how to play chess, successful graphic designer Agatha Harkness expects little more than after-school lessons and a new hobby to keep him busy. What she doesn’t expect is to cross paths with Rio Vidal, self-taught prodigy and future grandmaster, whose brilliance is matched only by her arrogance.
Drawn into Rio’s orbit, stubborn and haughty Agatha finds herself clashing with the other woman’s sharp wit and unshakable confidence. But as their worlds intertwine, spurred by the quiet intensity of the game, the lines between opposition and attraction begin to blur, both of them waiting for the inevitable checkmate.Or: the Chess AU nobody asked for but I wanted to write anyway.
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It’s Agatha’s turn to laugh because she wasn’t aware the next prophet stumbled into her office on a random Monday in September, “And you know this how Miss Vidal? Did Teen Vogue give a lowdown on me this week? How dare Agatha Harkness want to be in control of her own company. What a crime it must be to want to be on top. As if you wouldn’t want the same.”
“Well, personally, I’m perfectly happy with being on the bottom Ms. Harkness.”
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Agatha Harkness, CEO of Harkness Enterprises, has been stuck in a sexless, passionless engagement for nearly fifteen years. With no plans to change it, she continues about her life until Rio Vidal struts through her office doors for an internship and makes her question everything she’s ever understood about lust and power.
Series
- Part 1 of Wicked Witchcraft Universe
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Finger Sucking by domrio (jackiesnats)
Fandoms: Agatha All Along (TV), Marvel Cinematic Universe
12 Oct 2025
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kinktober 2025: finger sucking
Series
- Part 20 of 2025
- Part 12 of kinktober 2025
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Agatha stopped mid sentence, looking between Nicky and Rio in confusion. “Nicky, how do you know Rio?”
Nicky, completely unaware of any extra awkwardness, answered. “She’s my birth-mother.”
Agatha’s eyes widened as she looked between them again, and Rio knew what she was seeing— the same face shape, the same nose and cheeks and smile, the same eyes. Rio didn’t need a DNA test or paperwork to prove what she could easily see with her own eyes, and she could tell that Agatha didn’t either.
“Hi,” Rio said finally, though the greeting felt extremely inadequate as soon as it left her lips. But there wasn’t exactly a guidebook to this whole awkward situation.
What exactly do you say when the adoptive mother of your biological son is also the woman you fucked last Friday?
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A prequel to the Fight Me! Omegaverse Series
Before Rio, Agatha thought she was happy. She had life goals, a budding law career, and a mate.
But, a pending FBI investigation into her husband's company begins to put stress on her relationship. What happens when she begins to question herself and everything she thought she wanted?
Will it be worth it to sacrifice freedom for submission, or is there another path she can take?
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The Proposal AU by theegreenwitch
Fandoms: Agatha All Along (TV), Marvel Cinematic Universe
04 Aug 2025
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Faced with deportation to her native Scottish, high-powered book editor Agatha Harkness says she's engaged to marry Rio Vidal, her hapless assistant. Rio agrees to the charade, but imposes a few conditions of her own, including flying to Puerto Rico to meet her eccentric family. With a suspicious Jennifer Kale as immigration official always lurking nearby, Agatha and Rio must stick to their wedding plan despite numerous mishaps.
The Proposal AU aka gayer and hornier version
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Agatha Harkness needs a release, and in desperation she visits a professional. Neither of their lives will ever be the same again.
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Agatha and Rio go to a Coldplay concert... you know the rest.
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heart’s desire by curiositysdarling
Fandoms: Agatha All Along (TV), Marvel Cinematic Universe
19 Jul 2025
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Pregnant.
Rio stares at the readout panel on the blue and white stick clutched in her trembling hands for a long, terror-soaked, nausea-filled moment.
This cannot be happening.
Rio puts the test back down on the bathroom counter. Closes her eyes. Counts to ten. And gives the damn thing a mean little shake after blindly fumbling for it before daring to open her eyes to check result again, just in case.
Nope. Still pregnant. Oh, fuck.
“No, Lilia,” she mouths to herself, mockingly echoing her own earlier words. They’d been having breakfast earlier when Rio had found herself chucking up Cheerios in the sink for the fourth day running. That’s when the woman she all but considered to be her mother had decided it was time to gently offer her thoughts on what might be causing Rio’s recent bout of sudden and inexplicable chocolate Cheerio-intolerance. “Of course I’m not pregnant. The last person I slept with was my very female boss but oh, wait!” The script flips as Rio’s voice veers towards mild hysteria. “I forgot that we’re witches who pulled that dumbass stunt while drunk on Beltane!”
//
A magical accident happens. Chaos follows.
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Heavy Lifting by tibettetruther
Fandoms: Agatha All Along (TV), Marvel Cinematic Universe
23 Jun 2025
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When Agatha, a sarcastic, no-nonsense businesswoman, hires a personal trainer to help her “be hotter,” she doesn’t expect Rio—a flirty trainer with an attitude problem who’s as frustrating as she is intriguing. As Agatha begrudgingly warms up to the gym, she realizes she might be warming up to Rio even more.
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Thicker Than Blood by AgnesOConnor
Fandoms: Agatha All Along (TV), Marvel Cinematic Universe, The X-Files
20 Jun 2025
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Agatha Harkness is CEO of a healthcare company which is busted by the FBI. Her ex, Special Agent Rio Vidal, reappears in Agatha’s life after abruptly leaving her years ago. The two have a complicated past and were happy to leave it there, but seeing each other again brings it all back with a vengeance.
Series
- Part 2 of Thicker Than Blood
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Another world events political AU.
Rio had thought she was getting an exclusive interview with Air CEO Agatha Harkness, but as the protests that were centered in the Downtown Los Angeles area were greeted by military, it seemed that Rio had no idea what she was in for.
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Rio is a budding fashion designer who’s landed a job working for one of the biggest names in the business;
‘Personal Assistant’ to the infamous Agatha Harkness™
Queen of the fashion industry, and notoriously difficult.Rio thought that she could use the opportunity the get her work seen, and maybe be taken seriously for once in her life.
How foolish of her.It seems Rio is destined for a lifetime of fetching coffees and sorting emails, yet something is keeping her at this godforsaken job, and it’s definitely not the pay.
Rio just wants Agatha to look at her work. Nothing else. Right?
aka CEO Agatha//Personal Assistant Rio
ft. Alice/Jen
ON HOLD -
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When Rio first took this job, fake dating her boss never even crossed her mind.
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Rio has been working hard and Agatha has an idea for her day off, mischievously surprising the alpha the next morning in a way only Agatha can do.
Series
- Part 2 of Fight Me! Omegaverse
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how could we know we'd rearrange all the cosmos? by reginavidal (orphan_account)
Fandoms: Agatha All Along (TV)
03 Apr 2025
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Rio Vidal, who has lived a quiet and peaceful life in a small town. She has always been perceived as different, too much, imperfect.
She decides to accept an amazing job offer and moves across the country to New York City with her daughter, Lior.
Maybe a change of scenery could be good for her. Maybe she’ll find someone who is okay with who she is.
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Something is clearly bothering Agatha and Rio wants to help but first she needs to break down the omega's emotional barriers and what better way to do that then by breaking *her*.
Series
- Part 1 of Fight Me! Omegaverse
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Harkness Corp.
The leader in technology and archaeology that seamlessly merge historical knowledge with modern advancements.
The woman behind it all? None other than Agatha Harkness. A powerful, cunning, and resourceful woman who created her fortune from scratch. Wealthy and powerful men and women alike, fall to their knees in her presence, either in awe of who she is or surrendering to her overwhelming dominance.
No one could touch her.
Well, until today that is, when someone got pretty damn close to it.
Thankfully, somebody literally came crashing in to save the day.
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Agatha, a powerful CEO hiding a mysterious secret that puts her life in danger gets rescued by Rio, an equally mysterious ex-military turned personal security detail haunted by dreams of a woman and a boy from the past.
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What Agatha needed wasn’t love or connection. She didn’t need another failed experiment or someone who couldn’t keep up. What she needed was a high-profile, jaw-dropping, scandalously gorgeous and public date—someone who could be on her arm... who would stop her ex-wife in her tracks and, for once, leave her speechless. Then she could settle this.
The image brought a sly smile to her lips. Not a partner—no, she wasn’t deluded enough to think she’d find that—but a weapon.
She was long over her, but she wasn’t above being vindictive. That never lost its thrill.If she wanted to reopen old wounds, Agatha would make her bleed for it.
OR: Agatha needs a date to make her ex seethe, she finds way more than she bargained for.
Series
- Part 2 of Sugar and Honey Verse
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Private Chef Rio Vidal takes on a new client. Said client is recently divorced Agatha Harkness, CEO of a major finance company.
OR
agathario private chef au