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1. Oxytocin by ObsidianCoffee

   Fandoms: David Szymanski's Iron Lung - All Media Types, Project Hail Mary - Andy Weir, Iron Lung (2026), Project Hail Mary (2026)  

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

   02 Aug 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • The Convict | Simon (Iron Lung)/Ryland Grace
   • Ryland Grace
   • The Convict | Simon (Iron Lung)
   • Rocky (Project Hail Mary)
   • Adrian (Project Hail Mary)
   • Getting Together
   • Emotional Hurt/Comfort
   • Simon can have some softness as a treat
   • Journey to Erid (Project Hail Mary)
   • Religious Guilt
   • Smut in future chapters
   • Other Additional Tags to Be Added
   • Misunderstandings
   • Mutual Pining
   • simon is dealing with it
   • Rocky loves his mate so very much
   • Touch-Starved
   • Mutated The Convict | Simon (Iron Lung)
   • Let Adrian say Fuck
   • heart to heart coversations with the eridian besties
   • Feelings
   • Love Confessions
   • They are both so stupid
   • but so in love
   • no beta we die like the stars
   • Smut
   • Fluff and Smut
   • Anal Sex
   • Hair-pulling
   • Creampie
   • Accidental Voyeurism

   Summary

   The human brain is a funny thing, you see. It’s an incredibly complex structure of neurons and connections, capable of amazing feats (like sending people twelve light years into space), but it’s also a demanding little bastard. Oh, it’s very generous when it rewards you for getting it what it wants, but it also knows when it has given you enough to stop and keep you coming for more. And this is not the first bout Grace has had with his own neurobiology.

   His biggest problem right now? Freaking oxytocin.

   ---
   Grace is an stupid and touch starved. Simon is traumatized and thinks he's not worthy of love. They are both idiots.

   Language:

   English

   Words:

   14,732

   Chapters:

   4/4

   Comments:

   23

   Kudos:

   284

   Bookmarks:

   40

   Hits:

   2,635