12 Works in Ice King | Simon Petrikov is Marceline's Parent
Listing Works
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i've been the archer by ForTheLoveOf_Nayru
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
03 Sep 2025
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That night, Simon Petrikov prepared his death.
or
Simon's sick and tired of it all. So, he tries to end it.
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Forced Group Therapy (ft. A healthy dose of magical kidnapping) by Sle3pyKing
Fandoms: Carmen Sandiego (Cartoon 2019), The Owl House (Cartoon), Gravity Falls, Steven Universe (Cartoon), KPop Demon Hunters (2025), School Bus Graveyard (Webcomic), Jentry Chau vs. The Underworld (Cartoon), Amphibia (Cartoon), Adventure Time (Cartoon 2010), Jurassic World: Camp Cretaceous (Cartoon)
07 Aug 2025
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Sasha did jazz hands, and said in a deadpan voice, “Welcome to forced group therapy, we have memes and PTSD,”
OR:
Multi-fandom group therapy fic because uhhhhhhh I say so
Characters are Sasha (Amphibia), Rumi (KPDH), Stan (Gravity Falls), Eda (TOH), Steven (Steven Universe), Jentry (JCVTU), Carmen (Carmen Sandiego 2019), Ashlyn (SBG), Marceline (Adventure Time), and Yaz (JWCC) -
Ice Repellent Isn't Usually Edibles by emkaywrites
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
21 May 2025
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Simon Petrikov gets a little too stressed out seeing Ice Marceline, resulting in a panic attack. Winter King, in his apathetic yet flamboyant ways, decides that good old marijuana is sure to calm the man down.
OR
simon and winter king get high and makeout
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I remember you by Borealis_Strange
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
21 Apr 2025
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Betty had many mixed feelings about the land of OOO. Since she'd arrived 30 years ago, her life had been in chaos, all because she'd jumped into a portal to be with her beloved Simon. What was left for her now? Continue studying magic to find a cure for that curse.
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Go back a little by Bellacia
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
04 May 2024
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A failed invention by Bonnibel causes Marceline to go back more than a millennium and end up a little girl again.
Marceline doesn't have many memories of her life, except for some blurry lights and one specific event, so while Bonnibel works to fix everything and make Marceline an adult, Simon must take care of the girl.
Or: Simon being Marceline's guardian again, this time completely sane, and with the little girl having part of her memories.
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Had I Listened by KamenArts
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
07 Feb 2024
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An alternate universe in which during episode 2 of Fionna and Cake Season 1, Marceline notices that something is wrong with Simon during their phone call.
Writing Contest Winner! Fanart of scenes included at the bottom alongside credits! -
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about 5 years after the events of fionna and cake, simon finds himself upset with the way that he had handled him and betty's relationship, and wishes that he could fix it.
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petrigrof time travel fix it longfic cause im insane. im not the best writer so read at your own discresion. tags and rating may change later on, since this is just a go with the flow thing.
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Endless Summer Vacation by Shaylinne
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
08 Oct 2023
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Simon asks her what immortality feels like on a crisp autumn evening, as she’s replacing the strings on her bass. He’s had a white streak in his hair and crow’s feet for years, but his knees are still strong enough to crouch in the dirt and look at bugs with his microscope on one of Bonnie’s many terrifying expeditions. He’s outlived both Finn and Jake, and she can tell that it’s starting to irk him.
She leans back against the wind, floating a little above the ground, the question pounding in her head like the time that Finn had asked her what a lifetime of achievement meant and she’d had to swallow down everything but her own tongue as she answered.
“I guess it’s a little bit like an endless summer vacation,” she says, snapping off another string with a clawed hand, “Yeah, that’s it.”
Post-Canon, Simon and Marceline talk about immortality, family and everything else. Most of the talking happens in Marceline's head.
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You've Become Art (Beyond Your Presentation) by Nessiemay
Fandoms: Adventure Time, Adventure Time: Fionna and Cake (Cartoon 2023)
25 Sep 2023
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Countless long, jagged spikes of ice had shot up from the ground, ending the disgusting lives of those amorphous monsters.
A deafening quiet settled over the area, as the wind died down and the powder displaced by the icy needles shooting out of the earth. It was now silent.
So silent, so peaceful.At least, it would be— if an ear-piercing scream and shouts of his name didn’t ring out, causing Simon’s heart to jump into his throat.
“SIMON!”
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What happened to little Marcy in the Winter King's universe? We already know how he dealt with that...
WARNING: CONTAINS GRAPHIC DEATH OF A CHILD CHARACTER!!!
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Thought Another Chance to Tell Him Off Right to His Face by This_is_lovin
Fandoms: Adventure Time
27 Aug 2023
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You were much of a daughter to me. It pains me to do this, but I don’t want to harm you. I’d rather leave you than risk hurting an already growing wound.
I love you Marcy, stay safe.
As always, Simon.
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Or: Simon is the best dad and Marceline forgives. -
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Marceline's nervous about telling Simon about herself and Bonnie. Something very important. So she talks to Finn and Jake.
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Simon is trying to get his fiancé back.
It's not going to happen.