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1. (no) mercy, please by hertzbenign

   Fandoms: Project Hail Mary (2026), Project Hail Mary - Andy Weir  

   • Explicit
   • No Archive Warnings Apply
   • M/M
   • Work in Progress

   09 Jun 2026

   Tags

   • No Archive Warnings Apply
   • Ryland Grace/Rocky
   • Rocky (Project Hail Mary)
   • Ryland Grace
   • Alternate Universe
   • Role Reversal
   • Eridian Grace
   • Human Rocky
   • ortiz rocky
   • Omegaverse
   • alpha rocky
   • Omega Grace
   • Sort Of
   • desperate and overeager grace who wants to be rocky's mate so badly
   • rocky who's a bit clueless at the beginning but quickly catches on
   • Mutual Pining
   • intense sexual tension
   • Explicit Sexual Content
   • Getting Together
   • grace is lowkey a bit of a pervert in this
   • but it's cool because rocky's also a pervert
   • Sub Ryland Grace
   • Dom Rocky
   • Bottom Ryland Grace
   • Top rocky
   • a bit of a bratty grace sometimes
   • grace wants that knot so bad
   • Rough Sex
   • Humiliation Kink
   • Praise Kink
   • grace does a bit of a social experiment on rocky
   • but rocky's into it
   • Obsessed with each other
   • possessive rocky and possessive grace
   • they're on the hail mary still
   • predator/prey chase
   • Enthusiastic Consent

   Summary

   "You have no idea what you're asking for," Rocky snarls as he watches Grace slowly start to crawl back. There's a small pool of liquid forming beneath him and Rocky wants to eat him alive.

   "Yes, I do," Grace whines breathlessly. "Please, Rocky. Please, alpha."

   Rocky inhales sharply.

   "Run," he says.

   "W... What?"

   "I said run," Rocky growls.

   Grace squeals and takes off.

   Rocky gives chase.

   ***

   Grace is an excellent scientist, no matter what his colleagues back on Erid might have said once.

   As such, he knows that with the right methods and experimentation, he can convince Rocky that they belong together.

   He's desperate for it.

   Language:

   English

   Words:

   3,078

   Chapters:

   1/15

   Comments:

   44

   Kudos:

   896

   Bookmarks:

   174

   Hits:

   6,273