Not Allowed To Grow Up / Fan Works

• Calvin & Hobbes: The Series:
  • The original strip's example is lampshaded hard. For context, after Calvin has gone through quite a bit of Character Development over the course of four seasons, he gets Laser-Guided Amnesia and gets reverted back to how he was in the strip itself.
    Hobbes: You know, I don't know how I dealt with you four years ago.
    Calvin: Four years! That would make me... ten years old now!!
    MTM: Uh, no, Calvin. You're only six.
    [Beat]
    Calvin: How is [this] possible?
    MTM: Television contracts. Besides, this is kind of a sci-fi-y show. We'll think of an excuse soon.
  • As revealed in a later entry in The Calvinverse (The Collective), however, a race of aliens actually invoked this; the Chill Collective kept Calvin and those associated with him from aging in a plot to control the universe. Once they're defeated, the Floating Timeline goes with them.
• Lelouch in Soul Chess is a justified example. After he died, a Timey-Wimey Ball sent him to Soul Society over a hundred years before his death. Mayuri theorizes that Lelouch will start aging at a normal rate (well, normal for a shinigami) once he reaches the time he died. Though it does end up rather amusing when people he knew as children end up looking his age or older.
• Averted in the Code Lyoko fanfic Lyoko Championship series, where each new book is set one year later and at Book 3 has it to where Jenny from Team Sin is no longer on the team because she is in college.
• Subverted for Stewie in the Family Guy fanon wiki project Family Guy Fanon. As in Season 16, he has his second birthday in "Life of Brian 2: Revival Reversal", fifteen seasons after his first birthday.
• Briefly discussed in Fantasy of Utter Ridiculousness, which takes place after Touhou Project's eighth game. Marisa claims that she’s both a child at heart and a woman of at least 20 years. When asked why she still looked like an adolescent, her response is that both she and Reimu become younger whenever an incident is in progress. Reisen is quick to complain that this doesn't make sense.
• Because everyone is caught in a Time Loop, no one ages in The Infinite Loops. Loopers, however, do consider themselves to age from when they first Awaken, so this is played with.
• let's go out with a bang! is set in a world where the events of the Danganronpa series all took place within VR simulations. The cryptosleep participants are placed into while in VR prevents their bodies from aging biologically, impacting the growth of anyone who spends a long time in the sims... such as the casts of the first two seasons. When asked for his age, Naegi Makoto states that he's twenty-four, and nobody from said seasons is any older than twenty-six, even when they should be.
• The Pokémon Squad zigzags this trope. The Author Avatars age in Real Time, but characters like Ash, Brock, Misty, May, Henry, June, Loopy, and Larry haven't aged a day since the beginning of the fic's run. This actually played a large factor in RM and May breaking up in "Missing Master"; since RM ages and May doesn't, it would be too creepy to keep them in a relationship.

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