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1. Sing Me a Song, Siren by Rosescarletful

   Fandoms: Five Nights at Freddy's  

   • Mature
   • Graphic Depictions Of Violence
   • Other
   • Work in Progress

   14 May 2026

   Tags

   • Graphic Depictions Of Violence
   • Daycare Attendant (Five Nights at Freddy's)/Reader
   • Moon (Five Nights at Freddy's)/Reader
   • Sun (Five Nights at Freddy's)/Reader
   • Moon & Sun (Five Nights at Freddy's)
   • Moon (Five Nights at Freddy's)
   • Sun (Five Nights at Freddy's)
   • Alternate Universe - Merpeople
   • mermaid au
   • No use of yn
   • moon starts out by eating you but then we're all friends!
   • reader is a nurse shark
   • Sun and Moon are sirens
   • which is seperate from a mer person
   • Possessive Behavior
   • Hypnotism
   • Violence
   • gender neutral yn
   • Courting Rituals

   Summary

   You are a nurse shark mer with a nice territory and a cozy den. You are fine, being by yourself. It has been this way for a few years now.

   Now, two giant sirens come and invade your territory, and neither of them act normal! You guess they can stay with you...if they can learn to behave.

   [A nurse shark teaches two sirens how to mer, and the sirens teach them how to open up.]

   Language:

   English

   Words:

   32,704

   Chapters:

   8/?

   Comments:

   116

   Kudos:

   570

   Bookmarks:

   124

   Hits:

   8,337