1 - 20 of 1,463 Works in Kryptonite (DCU)
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Lois Lane awoke with a start.
She wasn’t entirely sure why. A soft breeze billowed through the lace curtains in the guest room, and she could hear the faint ticking of the old grandfather clock in the living room. Outside it was silent. Kansas nights were always too silent for Lois, who found comfort in the cacophony of sirens and road noise out her apartment window. And yet despite the silence, and the peace of this warm night, Lois Lane had awoken with a start.
Something was wrong.
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Clark has a nightmare and Lois is there to pick up the pieces.
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One year ago, the metahuman Clark Kent introduced himself to the public as Superman.
One year ago, Lex Luthor found a new ambition: to eliminate Superman.
One hour ago, Lex Luthor's team discovered a foreign mineral growing in the pocket universe that resembles kryptonite in almost every way.
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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
22 Sep 2025
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Clark Kent, Smallville’s golden boy, is spiraling over his crush on Lana Lang, terrified of botching his first kiss. He relentlessly unloads his teenage angst on Beth, his lifelong best friend and neighbor, until she, half-exasperated, half-curious, pitches a daring fix: she’ll teach him how to kiss. What starts as an awkward lesson quickly ignites into a high-stakes dance of raw desire, with hormones raging and a palpable sexual tension. Stolen glances and tentative touches blur the line between friendship and forbidden longing, as Beth battles to keep her own feelings locked away and Clark, blinded by his obsession with Lana, misses the fire simmering right in front of him. A tale of suppressed desire, nervous laughter, and the razor-thin edge between loyalty and something too dangerous to name.
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Any time, anywhere, by any means necessary by Epiclazershark
Fandoms: Superman (Movie 2025)
22 Sep 2025
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He would have done anything to get him back, anything; he had loved Clark more than anything. Loved him enough to do anything for him, including giving up his quest to destroy Superman, once he found out they were one and the same. They started working together to prevent wrongdoers, and things were good. They married and Clark was four months pregnant, and Lex had always known that Kryptonian males could carry children, the clone had allowed him to know, so they were ready prepared for when Clark found out.
Lex was happy; he loved Clark and their life together, and he was so excited to raise a family with him, so of course, that's when Clark died.
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Or Clarks dies and Lex goes to extreme multiversal lengths to get him back. -
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Kara Zor-El survived the death of Krypton. She survived her fight with her aunt. She survived being poisoned with Red Kryptonite. Now, she must face her toughest challenges yet; a boyfriend who struggles to commit, and a hefty dose of a new kind of Kryptonite.
Ever since Kara Danvers came to Earth, Alex Danvers has struggled with feelings she definitely shouldn't have toward her foster sister. When Alex gets a chance at everything she has ever wanted, she won't just let it slip away.
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The red fabric pooled in his hands, strong but unbelievably soft. Bruce itched to know what it was made out of. Would the fibers match anything on Earth? What would it look like under a microscope? Was it flame retardant? Could it be torn or damaged? How was it able to stop bullets and still be this... soft?
"It was my baby blanket." Clark hummed.
Bruce stopped breathing.
It transformed from the cape of the strongest man on the planet into an infant's swaddle; a relic of a dead world, a soft token of a mother's love that was strong enough to keep her baby safe thirty-three years later. Bruce hadn't cried in almost eighteen years, but tonight, he was about to break that streak.
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The Finest Betrayal by Lilac_Moon1785
Fandoms: Superman - All Media Types, Batman - All Media Types
21 Sep 2025
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Clark has been kidnapped! Bruce must find his pregnant husband....but who has him?!
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Horny error by Speechless_since_1998
Fandoms: Batman - All Media Types, Batman (Comics), DCU (Comics), Superman (Movie 2025)
21 Sep 2025
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He should have said it was none of his business. He should have done what he was good at and been an emotionally constipated asshole. But his brain wasn't in Batman mode yet, and the brain-mouth filter wasn't working.
“I slept with Superman…”
Dick looked at him with his mouth open, “What?”
“I slept with Superman,” he repeated, still in disbelief. “And no, you don't want to know how I found out…”
“Oh my God…”
“I didn't know who he was when he seduced me…”
“Oh my God!”
“But after the third time I realized something was wrong, and it looks like someone poisoned him with a different kind of kryptonite…”
“Third time? Third time of what…Oh, oh shit…”
(Bruce had been too busy lately to worry about the heroes of other cities, even the seemingly invincible aliens. But that was okay; he already had plans in case Superman went crazy. Too bad he hadn't planned for him if he accidentally slept with him.)
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Taste of Red by Anonymous
Fandoms: Superman - All Media Types, Superman (Movie 2025), Smallville
20 Sep 2025
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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
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Conflict by NinaTaylor
Fandoms: Batman - All Media Types, Superman - All Media Types, World's Finest (Comics)
20 Sep 2025
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Clark almost screamed in surprise, but ended up merely jumping up ungracefully, losing his balance and tumbling to the ground again. If they could, his cheeks would be burning with shame when he glanced up and saw Bruce Wayne standing there, his facial expression as blank as his Batman mask. “Bruce? What are you doing here?”
Or: After Batman saved Superman from Lex Luthor, the two butt heads
Series
- Part 3 of The World's Finest Story
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Come As You Are by everyonethinkstoomuch
Fandoms: DCU, DC Elseworlds, Smallville, The Batman (Movie 2022), Superman (Movie 2025), Wonder Woman - All Media Types, Superman - All Media Types, Batman - All Media Types
20 Sep 2025
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'Bruce was only watching to see how Clark’s sparring was coming along... He wasn’t watching Clark because he liked him or found him attractive. That would be foolish, and not sensible at all, and a distraction from the more important things in life, like beating up criminals every night and passing his exams.'
When Clark Kent gets into yet another fight on a night out, his friend Diana suggests he joins the university boxing club to get used to fighting back, without killing someone with his superpowers. Bruce Wayne has just transferred to Metropolis City University and isn’t all too happy about it. Unlike everyone else he knows, he misses Gotham. And now he has to balance university, being Batman, and his feelings for Clark Kent - which he definitely doesn’t have.
CONTENT WARNINGS: a little bit of swearing, implied abuse, implied & described mild violence, lots of discussion of dead parents.
This is an AU drawing on several different versions of characters and also my own interpretation of them. Bruce is Battinson, Clark is Corensupes & Smallville. The others are a mix of all media types and kind of just what I want them to be! -
Seeds of Apokolips by Lord_Kakarot
Fandoms: Young Justice - All Media Types, Justice League - All Media Types, Superman - All Media Types, Batman - All Media Types
20 Sep 2025
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Darkseids sick twisted plan to bend all life to his will using Anti-Life lies in the bio aura anomaly A.K.A Violet Harper (Halo). And to fulfil that plan Granny and Desaad take every possible step to satisfy their overlord such as sidelining the Kryptonian by using pink kryptonite(a definite side objective), raids on other planets for materiels like nth metal from Thanagar and more..... What will happen when Darkseid decides to take his full armada out on patrol, Tune in to find out!!
Warning dark lemon in between as the story builds. -
Something new [Superbat smut] by Void_Blood
Fandoms: DCU, Batman - All Media Types, Superman - All Media Types
19 Sep 2025
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Bruce desperately wants to try something new in bed. So, after heading straight to metropolis, Clark gives him exactly what he wants.
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The Kara/Cat Multiverse by TheRealJLRules
Fandoms: Supergirl (TV 2015), Smallville, Superman (Movie 2025), Superman (Christopher Reeve Movies), Supergirl (1984), Lois & Clark: The New Adventures of Superman, Superman & Lois (TV 2021)
19 Sep 2025
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The relationship between Kara Zor-El and Cat Grant, as seen within various timelines...
(SPOILER WARNING for "Superman '25")
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Drawings
1:Kidnap 5: Grapple 2:Batman 6: Study 3: Brucie 7: Nap 4:Contingency 8:Panel -
The Form of Crunching Numbers by Starlighter_Varda
Fandoms: Superman - All Media Types, Superman (Movie 2025)
18 Sep 2025
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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.
___________________________________________________________________Alternatively: How Lex Luthor's Two-Headed Obsession with One Man Derailed His Life.
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(This is a rewrite of a story I've previous shared - more information in the notes).
CatCo hires a bold new journalist and she’s no fan of Supergirl. Soon, she's the hottest thing in National City, whilst Kara can seemingly only watch.
How will Kara cope as she becomes less popular and National City slowly finds someone new to admire? Someone who neither respects or fears her, and in fact enjoys taking Supergirl down a peg.
This is a story where Kara can’t (or won’t) solve things with punches, but finds herself in over her head against a foe that dominates her through sheer force of personality. Where Kara's optimism seems to be thwarted at every turn.
It is also a story of desire and manipulation.
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It's Hard For Me To Let You Go by Nightcrawler247
Fandoms: Smallville, Superman - All Media Types
17 Sep 2025
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Lex and Clark have been together since they met in their younger years in Smallville.
Now they're adults and a prospering hero and CEO respectively.
Lex, in all his paranoid obsession of his boyfriend, has always feared one day Clark will tire of him and leave.
So he has a contingency plan just in case.
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Clark has been distant lately and Lex overracts.
Series
- Part 21 of All My Superman Stories
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coming home to you by soulmatebattery
Fandoms: DCU (Comics), Batman - All Media Types, Superman - All Media Types
17 Sep 2025
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Weakened by green kryptonite poisoning, Clarke sustains an injury that won’t heal until sunrise. Unsurprisingly, Bryce insists on fixing it, and the proximity makes Clarke long for the intimacy they've lost, for the love she still holds for the bat that stole her heart.
Could this injury be what's been needed to patch the rift between them and mend what's been broken?
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After divorcing Helen, Lex Luthor did not expect to be married again so soon.