1 - 20 of 544 Works in Red Kryptonite (DCU)
Navigation
Listing Works
-
Clark Kent's Kissing Experiment by Gabi3301
Fandoms: Superman - All Media Types, Superman (Movie 2025), Smallville, Batman - All Media Types, DCU
21 Dec 2025
Tags
Summary
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.
-
Tags
Summary
Clark puts on a red kryptonite bracelet to give him the strength to stop Lex. But as it transpires, what he wants most isn't to kill him, it's something infinitely more damning. What if Jor-El's artefact really did grant control over the Traveler? And what if the story of Sageeth and Naman isn't all it seems?
(Clark has a dark side that he can't face. Lex has more potential for good left in him than anyone knows.) -
Worshipped by A God by WhereHaveYou_Gone
Fandoms: Batman - All Media Types, Superman - All Media Types
21 Dec 2025
Tags
Summary
It's Bruce who makes the first mistake.
Because Bruce kisses him first. -
the definition of "good" by i_loved_you
Fandoms: Superman - All Media Types, Superman (Comics), Superman (Movie 2025), Smallville
20 Dec 2025
Tags
Summary
Lex Luthor is a good person.
He knows it as he stares into the mirror, surrounded by white tile and marble, the shower floor still wet and soap still washing down the drain. He knows it as he pours lotion onto his hands and massages his legs. He knows it as he washes his face with his charcoal soap and dries his face off with a towel.
Lex Luthor is a good person.
He thinks.
Lex Luthor is a good person.
He tries, at least. He tries every day. It’s all he’s ever tried; all he’s ever done in his life. Be good, be good, be good. Good, good, good. His definition of good…
It errs just on the wrong side of human.
So does the alien’s face, as it pops into Lex’s head.
How anyone describes Lex’s eyes as blazing while Superman lights fires with his own burning eyes is beyond him. How anyone describes his words as scathing when what comes from Superman’s mouth could freeze volcanos. How anyone describes him as untouchable while Superman has skin that bullets do not break.
Lex Luthor is not a good person. -
Tags
Summary
莱克斯是一名Omega探险家,他去深山中寻找一个传说中的神秘生物。
他认为这个神秘的怪物会为他带来巨大的成就,让他超过所有的Omega,以及Alpha。
但莱克斯不知道的是,他进入了一个放满了各种氪石的山洞,包括黑氪石和红氪石。
他唤醒了那个怪物,并被怪物深深地伤害。
当他终于从山洞中清醒过来时,他看到一个跟他一样被困在这里的人,克拉克。莱克斯想让克拉克做他的丈夫,但他又忘不了山洞里的那个怪物,卡尔-艾尔。
总之,莱克斯陷入了一场纠结的三角恋。 -
𝖂𝖔𝖒𝖊𝖓 𝖔𝖋 𝕿𝖔𝖒𝖔𝖗𝖗𝖔𝖜 by ᴄʜʀᴏɴɪᴄʟᴇꜱ ᴏꜰ ᴋʀʏᴘᴛᴏɴ (Cryptid_with_a_keyboard)
Fandoms: Supergirl (TV 2015)
17 Dec 2025
Tags
Summary
Get drunk alone on her 21st birthday.
That was Kara's plan. Now she's searching galaxies with a princess to save Krypto and rescue a prince.
All while falling into a love that she doesn't think she can fly out of.(Can be read without any knowledge of the comic, Supergirl: Woman of Tomorrow but it is based on that.)
One update every Wednesday at least. -
Tags
Summary
[ red kryptonite! clark kent x reader ]
When Clark embraces his true calling to take over earth for the Kryptonian race, his relationship with you strains greatly. Still, he's determine to get into your good graces even if the two of you are on opposite sides of a growing conflict.
-
Red by Speechless_since_1998
Fandoms: Batman - All Media Types, Batman (Comics), DCU (Comics)
06 Dec 2025
Tags
Summary
“Look, Tim, just tell me where I can find Bruce, I need help with…”
“No!” Tim shouted, getting a dirty look from Jason.
“What, daddy dearest is mad? I don't give a shit, I need…”
“Jason, no, believe me, you don't want to see Bruce right now,” Tim interrupted again, a grimace on his face. “You can talk to him tomorrow, if you really have to. But not now.”
Stephanie frowned. “What, is he in one of his usual moods? If you think this is going to end in a physical fight, we can stand aside and bet on who wins.”
Tim groaned, “No, he’s not…look, I don’t really want to say this out loud, I don’t…”
He didn’t finish his sentence before a long, loud groan echoed through the cave. And there was no doubt whose voice it belonged to.
(In which Bruce also has contingency plans in case Clark gets exposed to red kryptonite. Too bad he never told his kids, and Jason has strong opinions about it.)
-
amaranth by elysianprince
Fandoms: Superman (Movie 2025), The Batman (Movie 2022), Superman - All Media Types, Batman - All Media Types
28 Nov 2025
Tags
Summary
The kiss was heated, like the very flames of the sun licking at his mouth. It was absolutely nothing like how Bruce imagined kissing Clark would be, all hard edges and power, and none of the gentleness he knew so well. Still, his body instinctively lit up as the press of Clark's body against his felt so right, even as his mind screamed all of the ways this was wrong, absolutely wrong.
In which Clark is acting strangely, and Bruce deducts that he must be under the influence of red kryptonite. Fortunately, he has a plan. Unfortunately, the plan means walking the fine line of playing along to save his friend or surrendering to his own desires.
-
Tags
Summary
Luthor cree que Superman a veces intenta matarlo.
Aun así, se lo permitiría.
-
Call me daddy by Speechless_since_1998
Fandoms: Batman - All Media Types, The Batman (Movie 2022), DCU (Comics), Batman (Comics), Nightwing (Comics)
17 Nov 2025
Tags
Summary
"Jesus, Superman, don't treat me like I'm a child. You're not my fucking father!”
He realized what he'd said a second too late. It was a default mode, when he argued with Bruce, to remind him that he wasn't his father, he hadn't been adopted, he'd been easily replaced, there was nothing between them. Nothing.
And never mind his hurt feelings, and the loss he felt. Bruce had made it clear what he thought of their relationship. And Dick wasn't a child anymore.
He was almost ashamed of his outburst when Superman sneered dangerously, "You're right. I'm not your fucking dad. I'm fucking your dad."
(Sooner or later, they'll have to find a way to prevent so many aliens from obtaining kryptonite and its variants. But for now, Clark can uninhibitedly get some things off his chest with Dick.)
-
Tags
Summary
Después de un rescate de mineros atrapados en una mina, Supergirl es contagiada por kryptonita roja líquida y no hay regreso!!!, ella necesita a su reina, Lena luthor se convertirá en lo que tenga que ser para estar al lado de Kara.
Acompañé en esta nueva historia con una supergirl diosa y sexy.
-
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
09 Nov 2025
Tags
Summary
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.
-
Tags
Summary
CANCELLED-BENING REWRITTEN
***
5 years, that's how long he's been gone and everything and everyone in his city has changed especially his sunshine.
***
Sequel to: "Senior Year"
Book 2 of: "Young and In Love"Series
- Part 2 of Young and In Love
-
Tags
Summary
Lex Luthor has manufactured synthetic Kryptonite, and he needs a test subject.
-
That'll be Superbat Freak Week 2025, Hon. by sisaloofafump (threekingbelt)
Fandoms: DCU, Superman - All Media Types, Batman - All Media Types
01 Nov 2025
Tags
Summary
Fanart fillings for Superbat Freak Week 2025 :D
1. Red Kryptonite + Primal Play + Consensual Non-Consent
2. Oviposition + Somnophilia + Belly Bulge
3. Muzzles + Ropeplay + Watersports (feat. Lois) -
VITAMINA. by gusgusleoncito
Fandoms: DCU, The Batman (Movie 2022), Superman (Movie 2025)
30 Oct 2025
Tags
Summary
"Tengo su Kryptonita, y para su harem les tengo una vitamina"
Brucie Wayne bought the Daily Planet, and not only that, he has access to red Kryptonite. The plan? He knows Clark Kent is Superman; he just needs to confirm it.
-
The Form of Crunching Numbers by Starlighter_Varda
Fandoms: Superman - All Media Types, Superman (Movie 2025), Superman (Comics)
24 Oct 2025
Tags
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.
Series
- Part 1 of The Knife Cuts Both Ways
-
Tags
Summary
Alex manages to knock out the last goon in the room. She pants as she signals to the team to keep moving. She waits for the agents to exit the room before quieting her voice. “It’s- it’s not good, Lena…”
Lena stops in her tracks, pressing the phone harder against her ear to ensure she doesn’t miss anything.
“We lost contact with Supergirl about 20 minutes ago. Last report that came in was Kryptonite was present. We’ve been trying to push our way through to her, but…”
“Has there been any sign?”
“There’s been a few craters and holes punched through the walls. We are following the trail, but we still can’t raise her on comms.”
OR
Kara's life is in danger. Lena does everything she can to find and save the love of her life. When they do find her, she's not the same. The question is: will she ever be?
Series
- Part 29 of Supercorp Stories
-
Tags
Summary
Kara is exposed to red kryptonite again, and her friends must find a way to save her before it's too late.
- Language:
- English
- Words:
- 1,780
- Chapters:
- 1/1
- Kudos:
- 10
- Hits:
- 170
