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. Tennagotchi by Linkspussy

   Fandoms: Deltarune (Video Game)  

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

   18 Dec 2025

   Tags

   • No Archive Warnings Apply
   • Mettaton (Undertale)/Tenna (Deltarune)
   • Mettaton (Undertale)
   • Tenna (Deltarune)
   • Alternate Universe - Canon Divergence
   • Co-Stars AU
   • Mettaton EX (Undertale)
   • Ghost Tenna
   • Trans Characters
   • Dom/sub
   • Kink Negotiation
   • Risk Aware Consensual Kink
   • Subspace
   • Loss of Control
   • Macro/Micro
   • Pet Play
   • Virtual Pet
   • Tenna Has a Tail (Deltarune)
   • Praise Kink
   • Fluff
   • Feeding
   • Stuffing
   • Belly Rubs
   • Go my hyperspecific fetishes
   • Weight Gain

   Summary

   For as long as Mettaton has been his co-star, two observations about Mr. Ant Tenna have remained a constant truth:

   He has never possessed another robot body, and he has never taken a day off.

   Naturally, when Tenna decides to hop inside a toy and become Mettaton's virtual pet for the day, it's a shocking but not unwelcome change.

   Series

   • Part 14 of New fic

   Language:

   English

   Words:

   7,192

   Chapters:

   1/2

   Comments:

   16

   Kudos:

   70

   Bookmarks:

   8

   Hits:

   776