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1. Thresholds by ThePinkPanther83

   Fandoms: Teenage Mutant Ninja Turtles (Bay Movies), Teenage Mutant Ninja Turtles - All Media Types  

   • Explicit
   • No Archive Warnings Apply
   • F/M, Multi, Other
   • Complete Work

   03 Dec 2025

   Tags

   • No Archive Warnings Apply
   • Donatello (TMNT)/Reader
   • Donatello (TMNT)/You
   • Leonardo (TMNT)/Reader
   • Leonardo (TMNT)/You
   • Donatello (TMNT)/Leonardo (TMNT)/Reader
   • Donatello (TMNT)/Leonardo (TMNT)/You
   • Donatello (TMNT)
   • Leonardo (TMNT)
   • Reader
   • You
   • Romance
   • Smut
   • Fluff
   • Fluff and Smut
   • Sex
   • Anal Sex
   • Vaginal Sex
   • Vaginal Fingering
   • Penis in Vagina Sex
   • PIV Sex
   • bayverse
   • TMNT
   • No Use of Y/N for Reader-Insert
   • Not T-cest
   • Polyamory
   • polyamorous

   Summary

   🤓🐢💜 Summary:
   Late-night lab sessions have become a quiet ritual, just you, Donatello, and Leonardo lingering in the soft glow of screens and half-finished projects. But when one of Donnie’s experiments briefly reveals a glimpse of a future none of you were prepared to see, the familiar dynamic shifts. Jokes land softer, touches linger longer, and suddenly every shared moment feels like standing on the edge of something deeper. Friendship has always been safe… but now the three of you are hovering in that fragile space where one small step could change everything.

   Series

   • Part 6 of TMNT One-Shots

   Language:

   English

   Words:

   8,446

   Chapters:

   1/1

   Comments:

   12

   Kudos:

   74

   Bookmarks:

   14

   Hits:

   1,807