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1. Symbiosis by xiancamellia

   Fandoms: Final Fantasy XVI  

   • Explicit
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   19 Jun 2026

   Tags

   • No Archive Warnings Apply
   • Dion Lesage/Joshua Rosfield
   • Joshua Rosfield
   • Dion Lesage
   • Dion Lesage's Mother
   • Alternate Universe - Modern Setting
   • Mermaid! Joshua Rosfield
   • Human! Dion Lesage
   • Angst and Hurt/Comfort
   • Unethical Experimentation
   • nothing too graphic but its there
   • Sylvestre Lesage warning
   • Implied/Referenced Suicide
   • cranking up Dion's fear of loss
   • Protective Dion Lesage
   • Explicit Sexual Content
   • It just kind of happened
   • Intercrural Sex
   • Oral Sex
   • Switching
   • the carnal desire to consume each other
   • Joshua just wants to take a bite
   • Angst with a Happy Ending

   Summary

   The sea had never called out to Dion, until Joshua came into his life.

   (or: after his father rescued a creature only belonging to fairytales, a mermaid, Dion is forced to confront long-buried truths and the whirlwind of confusion that is Joshua.)

   Written for Phoenixflare Week 2026
   Day 1: Science/Experiments

   Language:

   English

   Words:

   20,484

   Chapters:

   1/1

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   Kudos:

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