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1. Sinned by atticlucker

   Fandoms: Monsters: The Lyle and Erik Menendez Story (TV 2024), Monsters: The Lyle and Erik Menendez Story (TV 2024) Actor RPF  

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

   09 Oct 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Nicholas Chavez/Cooper Koch
   • Nicholas Chavez & Cooper Koch
   • Nicholas Alexander Chavez/Cooper Koch
   • Cooper Koch
   • Nicholas Chavez
   • Ari Graynor
   • Javier Bardem
   • Chloë Sevigny
   • Ryan Murphy (Producer)
   • Lyle Menendez
   • Erik Menendez
   • Nicholas Alexander Chavez
   • Victoria Abbott
   • Stuart McClave
   • Cheating
   • Friends to Lovers
   • Actors
   • On Set
   • Filming
   • Co-workers
   • Falling In Love
   • Forbidden Love
   • Infidelity
   • Smut
   • Secret Relationship
   • Real Life
   • Inspired by Real Events
   • Sexual Tension
   • Explicit Sexual Content
   • Denial of Feelings
   • Friends With Benefits to Lovers
   • Friends With Benefits
   • Self-Denial
   • Feelings Realization
   • Practice Kissing
   • Party Host Jackson Wang (GOT7)
   • Behind the Scenes
   • RPF
   • Love Affair
   • Bottom Cooper Koch
   • Top Nicholas Chavez
   • No beta we die like Jose and Kitty
   • Coming Out

   Summary

   On-screen, Nicholas Chavez and Cooper Koch play brothers. Off-screen, they’re sinners, entangled in a secret affair that threatens to shatter the lives they’ve built and the careers they’re just beginning.

   AKA co-stars falling in love and cheating on their partners.

   (Inspired by jokes that Cooper and Nicholas hooked up on set and that’s why they had a “falling out.”)

   Language:

   English

   Words:

   208,487

   Chapters:

   30/?

   Comments:

   314

   Kudos:

   194

   Bookmarks:

   7

   Hits:

   5,317