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1. Your Tomorrow is Our Yesterday by xHapLotes405

   Fandoms: The Powerpuff Girls (Cartoon 1998-2005), Grim Adventures of Billy & Mandy  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   14 Feb 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Boomer/Brat Plutonium
   • Boomer & Bubbles Utonium
   • Brick/Blossom Utonium
   • Boomer & Brick & Butch (The Powerpuff Girls)
   • Boomer (PPG) & Mandy (Billy & Mandy)
   • Brick & Berserk Plutonium
   • Butch & Brute Plutonium
   • Brick (The Powerpuff Girls)
   • Boomer (The Powerpuff Girls)
   • Butch (The Powerpuff Girls)
   • Mandy (Billy & Mandy)
   • Billy (Billy & Mandy)
   • Brat Plutonium
   • Bubbles Utonium
   • Amnesia
   • Flashbacks
   • Alternate Universe - 1980s
   • Implied/Referenced Sexual Assault
   • Crossdressing
   • Ballet
   • Ballet Dancer Boomer
   • Little Women References

   Summary

   In her regret and sorrow due to missing her best friend, HIM attempts to exploit Bubbles. Of course, the girl is a good-natured Puff, and refuses him. She runs far away—but she runs a little too fast, and winds up back in 1978, when the girls and the boys were ten years old.

   But she makes a mistake.

   Language:

   English

   Words:

   3,040

   Chapters:

   2/25

   Hits:

   14