1 - 20 of 94 Works in Alternate Universe - 13 Going On 30 Fusion
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When teenage Asuka Langley Sōryū wakes up one morning in Tokyo-3 having gained a magnificent adult figure, a co-wife, a gaggle of children, and a broodingly sexy, ridiculously buff, domineering Master, she soon decides there’s only one thing for it:
Get mad as hell and not take it any more!
Series
- Part 4 of Grommakes
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Once they started drinking, Daniel started talking about the crush he had on the new girl- Lucy. She seemed cool enough, but Tommy didn’t really get the appeal. No, his heart wasn’t aching because they had a crush on the same girl. There was a hole in his chest because the guy he was pretty sure he loved had feelings for someone else.
“Hey! A shooting star!” Daniel exclaimed out of nowhere, “Make a wish!”
And Tommy did wish. With the image of a life with Daniel in his head, he wished to wake up at a time where the pain of unrequited love was gone.
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You Have Time to Learn by Tearyeyedshark
Fandoms: IT - Stephen King, IT (Movies - Muschietti)
04 Aug 2025
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Eddie Kaspbrak knew one thing above all things the year he turned 13: he was going to leave Derry when he was grown up and he wasn't going to be a Loser anymore. Turns out when you wish for something hard enough, you get what you asked for. But what can you lose along the way if you think only about yourself?
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13 Going on 30 inspired Reddie AU where Eddie is transported into the future to his life as an adult. I wanted to write a fic after drawing a handful of artwork inspired by the movie. -
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Mistynat Week 2025 Day One: Early 2000s AU
When Misty has the worst thirteenth birthday party ever, she makes a wish to be 'thirty and flirty and thriving'. Her wish doesn't exactly go to plan...but with a hesitant knock on the closet door, she does make a surprising new friend.
Is Nat her friend? She hopes so! Because she's stuck in the future and really needs one right now!
...13 Going On 30! Let's go!
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“Get the fuck off of me,” The sheets tangle around Mikey's legs and he hits the floor with a thud.
"Mikey!” The man sounds frantic, “It's just me! It's Pete.”
Mikey has an endless number of questions ranging from why were you holding me like that to why did I like it, but the one that comes spilling out is-
“Why are you old?”
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Mikey goes to bed in 2013 and wakes up in 2023. But the strangest part isn't the year – it's being in bed with Pete Wentz.
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Sasuke Uchiha, siendo el niño cretino con mala actitud que era, deseó saltarse el largo y tedioso proceso de aguantarse a sus compañeros de equipo y pasar de una vez a tener 30 años, con sus metas cumplidas y una vida plena. No esperaba, sin embargo, despertar y verse a sí mismo en un futuro que no se asomaba ni de cerca a lo que él esperaba. Ten cuidado con tus deseos, porque pueden hacerse realidad.
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Grow Up!!! by gutlesswonder
Fandoms: Star Wars - All Media Types, Star Wars Sequel Trilogy
27 Mar 2025
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In the suburbs of northern New Jersey, a shy middle-schooler named Rey throws a party on Y2K for her much-anticipated 13th birthday. It’s the highlight of her otherwise dreary life as an unpopular foster kid who is constantly bullied by the worst boy in the entire school.
After the party takes a distressing turn, however, she makes a desperate wish at midnight to be 30 years old, and free from the horrors of pubescence.
It doesn’t go the way she thinks.
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A “13 Going On 30”-inspired Reylo AU with a twist and Y2K elements!
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Following The Prank, Remus finds himself wishing to somehow skip all the pain and suffering that is bound to follow. What he doesn't expect, however, is to wake up 11 years older and in Muggle London - completely alone. Nothing in the world could have possibly prepared him for suddenly seeing a 27-year-old Sirius Black.
(big fat FUCK YOU to JKR 🖕🖕)
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This was really happening — she was really about to lose him because of the actions of a teenage Sol she doesn’t even remember.
Without warning, he turns around to face her, startling her. His fingers stop their activity, slacking slightly as he takes in her presence, his face cycling through one emotion after the other.
Shock. Surprise. Joy. Uncertainty. Pain.
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“My goddamn sets are perfect,” Atsumu says firmly. “You’ll see when I go pro and you don’t.”
“I’m going pro,” Sakusa shoots back, voice shaky now. “And when I do I’m making sure to join a team that’s a million miles away from you. I never want to see your face again.”
“Is that a promise, Omi-kun?”
“It’s a guarantee, Miya.”
Or
The promise they don't keep.
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All Ginny Weasley wants for her Thirteenth birthday is to be taken seriously as a grown woman and gain the attention of her crush, Harry Potter. When her wish comes true, she gets a lot more than she bargained for. She comes to find that being a Thirty-year-old, independent woman isn't at all what she thought it would be. Now she needs to figure out how her life had turned out this way and if she can fix things before it's too late... if it isn't too late already.
This is a story inspired by the Romantic Comedy 'Thirteen Going on Thirty' set in the Harry Potter universe. It does not follow canon for the movie OR Harry Potter.
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Aziraphale is in his thirteenth birthday and everything seems to be about to change, but there's one thing he wants to keep.
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For the prompt: McLennon crossover with 13 Going on 30. John goes to sleep one night when the Beatles were still struggling and he wakes up in the early 70s to find out he got everything he wanted and is one of the most famous musicians in the world but he doesn’t understand why he and Paul aren’t friends anymore….
Series
- Part 1 of Once in a Lifetime
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It's Ed Teach's thirteenth birthday and all he wants is to be thirty, flirty and thriving. Why wait so long for the best stage of your life to begin?
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Jonathan and Sara: it's hard to make a fairytale last fifteen years.
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Steve Harrington and the Case of the Terrible Twos by badfanfictionaire for LittleMissKnowItAll
Fandoms: Stranger Things (TV 2016)
08 Jun 2023
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Steve had screamed. Like, the house is burning down and you need to rescue your cat from the upstairs bedroom kinda scream. Which in retrospect was a mistake, since they were toddlers and not serial killers. All it did was wake them up and cause quite a commotion. All three of them crying and trying to figure out what-in-the-actual-fuck was going on.
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At 13 years old, Merlin offers Arthur his token. Arthur's response hurts his feelings. Then, Arthur wakes up in a 30-year-old body and Merlin is engaged to Lancelot instead. How can he fix this?! 13 going 30 AU.
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Fifteen-year-old Rey Niima can’t stand her neighbour Ben Solo. So you can imagine her surprise when she wakes up fifteen years in the future in bed with him — especially when he is calling himself her husband.
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All Seth Rollins wants is to be a great wrestler. After an unfortunate injury causes him to miss an important opportunity to be seen by the WWE, he wishes to succeed no matter what it takes.
His wish comes true as he awakens to realize that he has left Ring of Honor and is now a WWE Superstar. -
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13 se siente como ayer para muchas personas, pero para Louis en realidad lo fue.
Más que nada en el mundo, Louis Tomlinson sueña con crecer. Simplemente saltándose todos los años incómodos y vergonzosos de la existencia adolescente y continuando con la vida.
Entonces, cuando Louis, de trece años, se despierta en el cuerpo de su yo de treinta años, esperaba que todo en su vida adulta fuera perfecto. Y tal vez lo sea. Lo tiene todo... o eso parece.
Excepto que su persona favorita y mejor amigo de toda la vida, Harry Styles, está totalmente ausente de la ecuación y Louis no entiende por qué. Louis no puede evitar preguntarse por qué una vida que parecía tan perfecta se siente tan vacía.
O el AU de Si Tuviera 30 que debería haberse hecho hace años.