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. The law of conservation of energy by rubyprince (jaderuby)

   Fandoms: Harry Potter - J. K. Rowling  

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

   26 Feb 2026

   Tags

   • No Archive Warnings Apply
   • Sirius Black/Severus Snape
   • Sirius Black
   • Severus Snape
   • Lily Evans Potter
   • Post-Hogwarts
   • Mutual Pining
   • Jealousy
   • Sirius Black is Obsessed with Severus Snape
   • Idiots in Love
   • Explicit Sexual Content
   • Cunnilingus
   • Angst with a Happy Ending
   • Trans Severus Snape
   • Unhealthy Relationships

   Summary

   Severus is twenty-three, and his fourth boyfriend has just cheated on him with Sirius bloody Black

   Language:

   English

   Words:

   5,358

   Chapters:

   1/1

   Comments:

   12

   Kudos:

   302

   Bookmarks:

   34

   Hits:

   2,836