1 - 20 of 608 Bookmarked Items in Red Kryptonite (DCU)
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The Form of Crunching Numbers by Starlighter_Varda
Fandoms: Superman - All Media Types, Superman (Movie 2025), Superman (Comics)
10 Oct 2025
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Summary
Self-awareness and control were among Lex Luthor's many strong suits, and he knew that allowing himself to sink into obsession yielded great results.
But what he couldn't understand was why his focus was being torn between taking down Superman, an alien threat, and coveting the attention of Clark Kent, a Midwestern journalist.
Or why his fixation on Clark was threatening to consume him whole.
_______________________________Or, How Lex Luthor's Two-Headed Obsession with One Man Derailed His Life.
- Language:
- English
- Words:
- 178,868
- Chapters:
- 15/16
- Comments:
- 1,780
- Kudos:
- 2,066
- Bookmarks:
- 435
- Hits:
- 44,969
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the days get a little bit colder and shorter (but you’re here to keep me warm) by whitetailedear
Fandoms: Supergirl (TV 2015)
07 Nov 2020
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Supercorptober is here! Prompts are from @kmsdraws
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Perfect
Compilation for supercorptober -
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Very good indeed !
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kissing my stilettos by julianblackthornspancakes
Fandoms: Smallville, Superman - All Media Types
22 Jul 2025
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While tidying up the Kent farmhouse, Clark stumbles upon pictures of Lois during her stint as the vigilante hero Stiletto. It turns out he's not the only one interested in experimenting with the past eras of Lois and Clark.
OR:
The Stiletto x Red K Clark fic
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aches by laneyc
Fandoms: Superman/Batman (Comics), Justice League & Justice League Unlimited (Cartoons), Justice League - All Media Types, Batman - All Media Types, Superman - All Media Types
09 Apr 2025
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Summary
“Enough," he spits, startled at the way his hands begin to tremble. He can kill this person with a flash of his eyes. He wants to - he must, and yet his instincts are vehemently against the thought. Something deep within him wants to cradle the broken human. It wants to whisper that everything will be okay and tend to the bloody wounds he's caused.
ORRed Kryptonite
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Thirty plus years after losing Krypton to a tyrant and their own ignorance...Lieutenant Kara Zor-El crash landed on a whole new world; Earth. Her welcome wagon was rocky to say in the least thanks to a certain Amazon Princess. A refugee and now a enemy of humanity...can Kara survive this new phase of her life and find herself again with the help of Diana and the Amazons...or will Kara suffer the same fate as the rest of her people?
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More inside on A/N
Series
- Part 1 of Gods and Monsters
- Language:
- English
- Words:
- 138,828
- Chapters:
- 22/25
- Comments:
- 706
- Kudos:
- 1,060
- Bookmarks:
- 222
- Hits:
- 43,804
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Kara Zor-El
Cerberus_Spectre
Ch22 -
Bookmark Notes:
read 22
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Summary
Kara, Maggie and Alex visit Earth-1 to help out Berry with some alien emergency and are set to return back home to Earth-38.
But not everything goes as planned with Kara's interdimensional extrapolator.Or
The one where they end up in a different universe and meet familiar faces.
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Kryptonite by hrtskila
Fandoms: Superman (Movie 2025), Superman - All Media Types, Smallville
08 Oct 2025
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Summary
Somewhat Smallville reference, Clark Kent and Lex Luthor were friends because of Clark saving him. They get older and start to be enemies. They had a past of being lovers for a split second but then Lex changed and they split apart and barely spoke for years. Now Clark Kent is hiding his identity as Superman, partly living with his friend/co worker Lois Lane. Meanwhile, Lex Luthor, already knowing Superman’s identity, his former lover, friend, everything, is hiding a secret of his own. Two secrets to be exact. Two 13 year old secrets.
Lex and Superman are obsessing over each other, knowing exactly who one another is. The two secrets, are obviously secrets. But a little mishap and Clark finds out about those secrets..
Anyways enjoy?
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Taste of Red by Anonymous
Fandoms: Superman - All Media Types, Superman (Movie 2025), Smallville
12 Oct 2025
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Summary
Lex looks beautiful like this. Bound in his bed with his wrists tied together wearing nothing but a thin silk robe that showed more than it covered.
Kal could have had this and more if Clark wasn't too busy being a coward to take it. Lex always wanted him. Even back then when he was trying to kill him, he still wanted him.
Even now after they've reached an agreement, an alliance, a fragile friendship, Lex still hasn't changed. He still wants him. And if Clark isn't sure how to proceed, Kal is and he will not let Lex slip through his fingers like Clark is willing to.
Series
- Part 1 of Kryptonite Series
- Language:
- English
- Words:
- 10,000
- Chapters:
- 3/3
- Collections:
- 1
- Comments:
- 41
- Kudos:
- 346
- Bookmarks:
- 50
- Hits:
- 3,986
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Clark Kent's Kissing Experiment by Gabi3301
Fandoms: Superman - All Media Types, Superman (Movie 2025), Smallville, Batman - All Media Types, DCU
09 Oct 2025
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For Elizabeth Harper, the universe has always made sense through equations and logic. She is the girl who finds order in chaos, who believes every problem has a solution. But the heart of Clark Kent—her best friend and childhood neighbor—is a chaotic variable she cannot solve. When he asks for help to win over Lana Lang, Beth agrees, disguising her own desire for Clark under the logical pretext of applying a 'scientific method' to the problem, treating their kisses as a controlled experiment. The result, however, is an explosion of data she cannot predict: primitive jealousy, buried secrets, and an attraction that defies any law of physics. It is a journey about a girl who tries to control the uncontrollable, only to discover that the most powerful—and devastating—emotions are those that defy any formula.
- Language:
- English
- Words:
- 139,185
- Chapters:
- 13/?
- Collections:
- 1
- Comments:
- 407
- Kudos:
- 477
- Bookmarks:
- 63
- Hits:
- 8,964
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Bookmark Notes:
Cap 13
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Before I forget & my web logs me out again lmao
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Warrior Angel and custard-filled donuts solve all the world's problems.
The rape/noncon tag is actually for dubcon, but I just wanted to be safe in case it's triggering for anyone. No trauma, I promise.
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The Things I Could Never Say by lostinreeverie
Fandoms: DCU (Comics), Superman - All Media Types, Batman - All Media Types
05 Aug 2025
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Summary
“So basically, it turns off the part of me that gives a damn about consequences.”
Bruce nodded. “Exactly. It also doesn’t create new thoughts or makes you feel anything new. It just removes the reasons you don’t act on what’s already there.”
Clark was quiet for a moment.
Then: “Oh,” he said softly. A glint sparked behind his eyes. “Well then.”
He moved.
In one fluid step, he closed the distance between them.
Or, Clark is hit with red kryptonite for the first time, and Bruce has to deal with a version of him that doesn’t know how to lie, hesitate… or hide what he wants.
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What would have happened if Lex had taken up Clark's offer in s02e04 (Red) to leave with him to Metropolis?
Part one - Clark is wearing his Red Kryptonite ring and BOTH he and Lex are very much into each other (Red-K Clark is such a tease in this one that even Lex is blushing.)
Part two - The ring falls off of Clark's finger in the middle of a smut scene - ups! How will that end up? You gotta read the story to find out. ;D
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The Luthor Project by silentarmor
Fandoms: Superman (Comics), Superman - All Media Types, Superman (Movie 2025), DCU (Comics), Justice League - All Media Types, Peacemaker (TV 2022), DC Extended Universe
11 Oct 2025
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Rick Flag Sr. dropped a folder on the table with bureaucratic resignation. “The A.R.G.U.S. Strategic Oversight Directive for the Containment and Rehabilitation of Enhanced Nationals,” he announced. “That’s its official designation, and I expect you to use it.”
Hal stared. “Catchy.”
Barry raised a hand. “Pretty sure your people on the observation deck are calling it The Luthor Project.”
“No one calls it that,” Flag snapped. “And if they do, they’ll be filling out triple the paperwork.”
“What’s the directive, General?” Diana asked.
“Simple,” Flag said. “Luthor needs oversight. A.R.G.U.S. decided it should come from one of you.”
Hal smirked. “You mean us—the League?”
Flag shook his head. “No. I mean him.”
Every head turned toward Superman.
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Turnabout by crocodileinterior
Fandoms: DCU (Comics), Smallville, Superman - All Media Types
21 Jun 2019
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Summary
Superman crosses a line with Lex Luthor that changes everything between them and turnabout becomes fair play when he has his revenge.
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Bookmark Notes:
以眼还眼后我会原谅你
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Fanfuckingtastic
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Work/Series Details
Turnabout by crocodileinterior
Completed: 2019-06-21
Work/Series ID: 17420261Relationship Tags:
Additional Tags:
Revenge, Non-Consensual Spanking, Minor Violence, Red Kryptonite, Hate Sex, Love/Hate
Work/Series Summary:
Superman crosses a line with Lex Luthor that changes everything between them and turnabout becomes fair play when he has his revenge.
(Approximate) Last Read: 2025/07/19
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“I do know you.” Supergirl’s voice is soft and tender, a contrast to the wildfire that blazed in her blue eyes. “And you know me. Look at me, Lena.” Lena complies, locking gazes with Supergirl. “Really look at me.”
Lena notes the pleading tone in the hero’s voice and takes a moment to look deeply into those bold, azure eyes. Even though they’re intense, even though they’re filled with an anger Lena has never seen before, they’re also familiar. Why is that? This kind of familiarity comes with knowing someone intimately. She doesn’t have that kind of relationship with Supergirl, it’s strictly business.
No, there is only one pair of blue eyes Lena has spent what feels like a lifetime staring into. And with a breathless gasp she realizes, she’s staring into them now as well. They’re darker than normal with a hint of mischief, anger and wickedness but they’re still her eyes.
Kara’s eyes.
Kara is Supergirl.
AKA Kara comes into contact with red kryptonite instead of harun-el during season 4
- Language:
- English
- Words:
- 82,000
- Chapters:
- 16/16
- Collections:
- 2
- Comments:
- 658
- Kudos:
- 3,075
- Bookmarks:
- 602
- Hits:
- 99,773
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Kryptonite Series by Anonymous
Fandom: Smallville, Superman (Movie 2025), Superman - All Media Types
12 Oct 2025
Summary
Different colors of Kryptonite have different effects on Kryptonians. Unfortunately, no one bothered to inform Clark of this.
Featuring Clark trying and failing to learn about Kryptonite without hurting those around him.
- Words:
- 10,000
- Works:
- 1
- Bookmarks:
- 9
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b1
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**JACKPOT! Luthor Doubles Down on Dishy Reporter in Shock Vegas Nuptials**
When Clark Kent and Lex Luthor attend Bruce Wayne’s bachelor party in Las Vegas, getting hitched was not on the cards. But it turns out waking up married to an ex-friend and current nemesis might be the best thing for both of them.
Clexweek 2021 Day 1: Alcohol/Drugs + Woke Up Married
Series
- Part 6 of DC & Vertigo Comics
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7
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Prompt Fill for Gabs: Redk!Kara wanting it fast and hard and lena fucking her gently until she's in tears? With lots of praise kink pls
*OR*
Under the effects of Red Kryptonite, Kara has to be kept somewhere secure. The L-Corp Laboratory is about the only location with enough lead lining to hide her heat signature while the DEO worries about bigger threats. Kara’s frustrated arousal and darkened mood is nothing compared to her girlfriend, Lena Luthor’s.
There’s a dark and evil side lurking inside Lena too. Always there, always out of sight. With Kara under the influence of the Red Kryptonite, Lena finds herself indulging in her own primal dark side in order to quell Kara’s own.
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Bookmark Notes:
Red k submission
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- Words:
- 13,109
- Works:
- 1
- Bookmarks:
- 1
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Summary
Damian isn't sure what to do when he is suddenly overwhelmed by Jon tackling him into his bed.
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