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1. The Unknown Gems by katamations1937

   Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Steven Universe (Cartoon)  

   • Not Rated
   • No Archive Warnings Apply
   • Gen
   • Work in Progress

   19 Sep 2026

   Tags

   • No Archive Warnings Apply
   • Donatello & Leonardo & Michelangelo & Raphael (TMNT)
   • Donatello & Leonardo (TMNT)
   • Connie Maheswaran & Steven Universe
   • Steven Universe & Everyone
   • Leonardo (TMNT)
   • Donatello (TMNT)
   • Michelangelo (TMNT)
   • Raphael (TMNT)
   • Steven Universe
   • Pearl (Steven Universe)
   • Lapis Lazuli (Steven Universe)
   • Garnet (Steven Universe)
   • Amethyst (Steven Universe)
   • Splinter | Lou Jitsu
   • April O'Neil (TMNT)
   • Greg Universe
   • Donatello and Leonardo are Twins (TMNT)
   • Alternate Universe - Fusion
   • Crossover
   • Good Sibling Michelangelo (TMNT)
   • Good Sibling Donatello (TMNT)
   • Good Sibling Leonardo (TMNT)
   • Good Sibling Raphael (TMNT)
   • no beta we die like gram gram
   • the turtles are gems and become stevens older brothers
   • I haven't seen SU in a very long time
   • takes place around mid-season 3
   • I promise I don't hate the crystal gems
   • There will probably be more tags later

   Summary

   Steven has always wondered if there were more gems out there. I mean, he knows there are on Homeworld, but he wondered if there were any on Earth. Someone that didn't want him dead and would want to be friends with him. But eventually he gave up on that dream.

   Little does he know that his wish just might have come true.

    

   Tldr: Steven struggles being understood by humans and gems, so when 4 human raised gems decide he's their new brother, who is he to say no?

   Language:

   English

   Words:

   6,909

   Chapters:

   3/?

   Comments:

   6

   Kudos:

   25

   Bookmarks:

   10

   Hits:

   378