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1. Failsafe by nimmue

   Fandoms: Tennis RPF  

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

   09 Jan 2026

   Tags

   • No Archive Warnings Apply
   • Carlos Alcaraz/Jannik Sinner
   • Alternate Universe
   • Dubious Morality
   • Mildly Dubious Consent
   • Emotional Manipulation
   • Top Carlos Alcaraz
   • Bottom Jannik Sinner
   • Hand Jobs
   • Sadist Carlos Alcaraz
   • Power Imbalance
   • Power Dynamics
   • Medical Experimentation
   • Medical Inaccuracies
   • Dark! Carlos Alcaraz
   • Sub! Jannik Sinner
   • Impact Play
   • Spanking
   • Choking
   • Lowkey Cock Slut Jannik Sinner
   • Masochist Carlos Alcaraz
   • Blow Jobs
   • this keeps getting worse and worse as I write the tag
   • What Have I Done
   • Coming Untouched
   • Cock Slapping
   • Dirty Talk
   • Anal Sex
   • Anal Fingering
   • Tied-Up Jannik Sinner

   Summary

   The Failsafe is meant to sharpen what already exists.
   Carlos Alcaraz is meant to supervise it.
   Jannik Sinner is meant to endure it.

   None of those expectations hold.

   Language:

   English

   Words:

   11,672

   Chapters:

   2/2

   Comments:

   7

   Kudos:

   86

   Bookmarks:

   6

   Hits:

   1,947