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1. Mutually Beneficial by theclosetmp4

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

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Complete Work

   19 Jun 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • The Convict | Simon (Iron Lung)/Ryland Grace
   • The Convict | Simon (Iron Lung) & Rocky (Project Hail Mary)
   • The Convict | Simon (Iron Lung) & Ryland Grace & Rocky
   • The Convict | Simon (Iron Lung)/Ryland Grace/Rocky
   • The Convict | Simon (Iron Lung)
   • Ryland Grace
   • Rocky (Project Hail Mary)
   • Semi-Public Sex
   • Is it Public if it’s in front of your alien homeboy
   • Bottom Ryland Grace
   • incubus
   • Succubi & Incubi
   • gentle domination
   • Rough Sex
   • Anal Sex
   • Anal Fingering
   • Multiple Orgasms
   • SexDemon!TheConvict
   • Mutation
   • Voyeurism
   • Accidental Voyeurism
   • But it’s a happy accident
   • Light Dom/sub
   • Dom/sub Undertones

   Summary

   Grace and Rocky find themselves a new human.

    

   Human, though, is not quite what he is anymore.

   Language:

   English

   Words:

   1,250

   Chapters:

   1/1

   Comments:

   7

   Kudos:

   221

   Bookmarks:

   23

   Hits:

   3,417