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1. 'Tests' and 'Experiments' are Just Big Words for 'Tummy Time' - Tummy Mouth AU by ObsessiveAgony

   Fandoms: Iron Lung (2026), Project Hail Mary (2026)  

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

   29 Jun 2026

   Tags

   • No Archive Warnings Apply
   • The Convict | Simon (Iron Lung)/Ryland Grace
   • The Convict | Simon (Iron Lung)
   • Ryland Grace
   • Amputee The Convict | Simon (Iron Lung)
   • The Convict | Simon Lives (Iron Lung)
   • Touch-Starved The Convict | Simon (Iron Lung)
   • Mutated The Convict | Simon (Iron Lung)
   • The Convict | Simon (Iron Lung) Loves Ryland Grace
   • Ryland Grace Loves The Convict | Simon (Iron Lung)
   • The Convict | Simon (Iron Lung) and Ryland Grace are Patron Saints of One-Way Trips
   • The Convict | Simon Has Religious Trauma (Iron Lung)
   • The Convict | Simon Has PTSD (Iron Lung)
   • Touch-Starved Ryland Grace
   • POV Ryland Grace
   • POV The Convict | Simon (Iron Lung)
   • Ryland Grace Is Not Graceful
   • Ryland Grace Has PTSD
   • Ryland Grace Has an Oral Fixation
   • The Convict | Simon Has Panic Attacks
   • Service Top Ryland Grace
   • Topping from the Bottom
   • kind of?
   • Switch Ryland Grace
   • Switch The Convict | Simon (Iron Lung)
   • Mutated Stomach Mouth
   • Mouth Has Mutated on Stomach
   • Panic Attacks
   • Blood
   • Tummy Mouth The Convict | Simon (Iron Lung)
   • tummy mouth
   • BloodyMary
   • IRONMARY
   • Not Beta Read
   • One Shot
   • Not a Platonic Relationship
   • Smut
   • Fluff and Smut
   • Porn with Plot
   • Gratuitous Smut
   • Monster Smut?
   • Monster Fucker Ryland Grace
   • Mentioned Rocky (Project Hail Mary)
   • Ryland Grace Fucks Tummy Mouth
   • Never Thought I'd Write That Tag
   • The Convict | Simon Speaks Korean
   • fuck racists

   Summary

   ** If you didn't read the tags, there's weird monster/mutation tummy fucking going to happen. You've been warned. **

    

   When Grace found Simon, Grace always said that Simon had been found a mess.

   Grace leaving balled up papers on the ground, that’s a mess. Rocky leaving xenonite scraps everywhere, that’s a mess. None of them picking up after they eat, that’s a mess.

   Calling whatever Simon must have looked like when he was unconscious was an understatement. 

   Because Simon knew he must have looked like a fucking nightmare. 

   Series

   • Part 7 of BloodyMary (Simon the Convict/Ryland Grace)

   Language:

   English

   Words:

   7,937

   Chapters:

   1/1

   Comments:

   64

   Kudos:

   736

   Bookmarks:

   86

   Hits:

   4,987