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1. Late Bloomer by lis_likes_fics

   Fandoms: Criminal Minds (US TV)  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   24 Feb 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Spencer Reid/Reader
   • Spencer Reid
   • Reader
   • Aaron Hotchner
   • Emily Prentiss
   • Derek Morgan (Criminal Minds)
   • Jennifer "JJ" Jareau
   • David Rossi
   • Alpha/Beta/Omega Dynamics
   • Omega Verse
   • Alpha Spencer Reid
   • Omegaverse Omega Reader-Insert
   • Canon-Typical Violence
   • Beta-Passing Spencer Reid
   • Fluff
   • Smut
   • Knotting
   • Heats and Ruts
   • Biting
   • Claiming Bites
   • You know normal the normal abo content
   • You know why you're here I know why you're here You know why I'm here I know why I'm here you why know I here'm
   • Sexism
   • Secondary Gender Discrimination
   • Implied/Referenced Sexual Assault
   • Creampie
   • Breeding Kink

   Summary

   beta-spencer who presents as an alpha only after you end up in some kind of danger that triggers his primal protective instincts

   hehehaha this was an impulse series enjoy

   Series

   • Part 12 of Behavioral Analysis Unit

   Language:

   English

   Words:

   15,779

   Chapters:

   5/?

   Comments:

   2

   Kudos:

   54

   Bookmarks:

   14

   Hits:

   1,179