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1. Lapdog by DinofelisSnow1985

   Fandoms: Undertale (Video Game)  

   • Mature
   • Graphic Depictions Of Violence
   • Other
   • Complete Work

   03 Jul 2025

   Tags

   • Graphic Depictions Of Violence
   • Sans/Sans (Undertale)
   • Cross/Dream
   • Cream - Relationship
   • Nightmare/Cross
   • Cross/Suffering
   • Sans Ensemble (Undertale)
   • Cross
   • Dream
   • Ink - Character
   • Blue
   • Nightmare - Character
   • Killer - Character
   • Dust
   • Horror - Character
   • Epic - Character
   • Xtale Sans | Cross (Undertale)
   • Dreamtale Sans | Dream (Undertale)
   • _____tale Sans | Ink (Undertale)
   • Underswap Sans (Undertale)
   • Dreamtale Nightmare Sans (Undertale)
   • Killer Sans (Undertale)
   • Dusttale Sans (Undertale)
   • Horrortale Sans (Undertale)
   • Epic
   • Kidnapping
   • Prison
   • Isolation
   • Sensory Deprivation
   • Torture
   • Psychological Torture
   • Rape/Non-con Elements
   • Non-Consensual Touching
   • Non-Consensual Body Modification
   • Non-Consensual Bondage
   • Brainwashing
   • Mind Manipulation
   • Mind Games
   • Gaslighting
   • Altered Mental States
   • mind altering
   • Mindbreaking
   • Master/Pet
   • XTale Sans | Cross Needs a Hug (Undertale)
   • Dark
   • Collars
   • Chains
   • Hurt
   • Angst
   • Power Play
   • Dreamtale Nightmare Sans Being a Jerk (Undertale)
   • Evil Nightmare
   • Fear
   • Trauma
   • Unhappy Ending
   • Loss of Identity
   • Dead Dove: Do Not Eat

   Summary

   Cross left Nightmare to join the Star Sanses. But Nightmare hates to lose. He will teach him how to be a good dog.

   *Please read the tags in case there's something that could trigger you, thanks*

   Language:

   English

   Words:

   10,166

   Chapters:

   19/19

   Comments:

   110

   Kudos:

   214

   Bookmarks:

   29

   Hits:

   5,439