Adult Content Warning

This work could have adult content. If you continue, you have agreed that you are willing to see such content.

• Yes, Continue
• No, Go Back

If you accept cookies from our site and you choose "Yes, Continue", you will not be asked again during this session (that is, until you close your browser). If you log in you can store your preference and never be asked again.

1. Wasn't there a better way to do this? by Problematic_Loser

   Fandoms: おそ松さん | Osomatsu-san (Anime), おそ松くん| Osomatsu-kun (Anime 1988)  

   • Mature
   • Rape/Non-Con
   • M/M
   • Complete Work

   11 Mar 2025

   Tags

   • Rape/Non-Con
   • Matsuno Karamatsu/Matsuno Osomatsu
   • Matsuno Karamatsu & Matsuno Osomatsu
   • Matsuno Sextuplets Incest | BLMatsu (Osomatsu)
   • Rape/Non-con Elements
   • Rape
   • Top Matsuno Osomatsu
   • Bottom Matsuno Karamatsu
   • Anal Sex
   • Anal
   • Anal Fingering
   • Angst
   • Men Crying
   • Osomatsu-san the Movie (2019) Spoilers
   • Obsession
   • Obsessive Behavior
   • Jealous Matsuno Osomatsu
   • Matsuno Karamatsu Angst
   • Crying Matsuno Karamatsu
   • Matsuno Karamatsu-centric
   • Matsuno Osomatsu Being an Asshole
   • Creampie
   • First Time
   • Loss of Virginity
   • Dead Dove: Do Not Eat
   • Incest
   • Sibling Incest
   • Brother/Brother Incest

   Summary

   Osomatsu finds Karamatsu to be the easiest of his brothers to exploit.
   He's seen him like that since they were young children, and that's when his obsession with his younger brother probably originally started.
   -
   Warning;
   This fic contains VERY dark themes which may cause some people to feel very uncomfortable.
   Please read the tags properly before continuing!

   Series

   • Part 2 of Nym's fanfics
   • Part 3 of Obsessive behaviour

   Language:

   English

   Words:

   3,453

   Chapters:

   1/1

   Kudos:

   23

   Bookmarks:

   6

   Hits:

   732