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1. Shifters' anatomy: an extensive study by spennufall

   Fandoms: Young Royals (TV 2021)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Complete Work

   17 Jan 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Simon Eriksson/Wilhelm
   • Simon Eriksson
   • Wilhelm (Young Royals)
   • Fantasy Wilmon
   • Alternate Universe - Fantasy
   • Alternate Universe
   • Dragon shifter
   • Aged-Up Character(s)
   • Wilhelm is a Little Shit (Young Royals)
   • Smut
   • Shameless Smut
   • Non-Human Genitalia
   • Anal Fingering
   • Anal Sex
   • Plot What Plot/Porn Without Plot
   • i mean it's an add-on to a longer au so there's technically a plot BUUUT
   • Explicit Sexual Content
   • Top Simon Eriksson
   • Bottom Wilhelm (Young Royals)
   • i mean they're verse in this au but for THIS scene it's like this ok deal with it
   • spoilers if you haven't read Wilhelm the Devoted
   • no beta we die like Erik

   Summary

   "Oh? Am I ridiculous?" Simon pouts, chasing Wilhelm's eyes by tilting his head left and right. "Am I? Really… That's too bad… If you really wanted to, I could've shown you…"

   That makes Wille look back at him. The giggle that escapes Simon almost makes him slam his head on the stone edge of the bath, because, of course, he would bait him and make fun of him. He pushes him lightly. "Stop it…"

   Simon's giggle dies on his lips. Then he purses them, his mouth now a straight line. "But I was serious, Wille."

   ---

   In a different reality where Wilhelm knows about Simon's little secret, he also is too curious about it, and wants to experiment. Simon is happy to oblige.

   Series

   • Part 2 of Brennisteinn Saga

   Language:

   English

   Words:

   6,456

   Chapters:

   1/1

   Comments:

   21

   Kudos:

   65

   Bookmarks:

   7

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