Adult Content Warning

This work could have adult content. If you continue, you have agreed that you are willing to see such content.

• Yes, Continue
• No, Go Back

If you accept cookies from our site and you choose "Yes, Continue", you will not be asked again during this session (that is, until you close your browser). If you log in you can store your preference and never be asked again.

1. Piston by swtalmnd

   Fandoms: Marvel Cinematic Universe  

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

   21 Dec 2025

   Tags

   • No Archive Warnings Apply
   • James "Bucky" Barnes/Tony Stark
   • James "Bucky" Barnes/Steve Rogers/Tony Stark
   • James "Bucky" Barnes & Steve Rogers & Tony Stark & Sam Wilson
   • Steve Rogers
   • James "Bucky" Barnes
   • Tony Stark
   • JARVIS the AI (Marvel)
   • Alternate Universe
   • Alternate Universe - Canon Divergence
   • cyberpunk adjacent
   • I do what I want
   • Communicating Like Actual Fucking Adults
   • Sam Wilson Is a Good Bro
   • no beta we die like coulson

   Summary

   Tony and Bucky enjoy some compatibility.

   Series

   • Part 25 of Smooth Gear Action

   Language:

   English

   Words:

   912

   Chapters:

   1/1

   Collections:

   1

   Comments:

   6

   Kudos:

   32

   Hits:

   204