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. A Mystery for You by Jenjentheboscostick

   Fandoms: Chicago Fire  

   • Explicit
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   15 Aug 2026

   Tags

   • No Archive Warnings Apply
   • Matthew Casey/Kelly Severide
   • Matthew Casey
   • Kelly Severide
   • Ben Darden
   • Griffin Darden
   • Sevasey raising the Darden Boys
   • Established Relationship
   • Cute
   • Dancing
   • Kissing
   • Silly
   • Slice of Life
   • Coparenting
   • Blow Jobs
   • switch POV
   • Hickeys
   • Fluff
   • Teasing
   • Mysteries
   • Implied Anal Sex

   Summary

   When Casey comes home to Severide dancing around happy and excited, he can't help wondering what put him in such a good mood. It's a mystery for him to figure out and Severide to know.

   Series

   • Part 15 of Sevasey Weird Series
   • Part 13 of Writer's Month 2026

   Language:

   English

   Words:

   1,943

   Chapters:

   1/1

   Collections:

   1

   Comments:

   4

   Kudos:

   7

   Hits:

   159