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1. Affine Transformation by AllAborde (Bordementions)

   Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 | Uma Musume - All Media Types  

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

   10 Aug 2026

   Tags

   • No Archive Warnings Apply
   • Agnes Tachyon/Trainer (Uma Musume)
   • Agnes Tachyon (Uma Musume)
   • Trainer (Uma Musume)
   • Reader
   • Horsefem | Becoming an Uma Musume (Uma Musume)
   • Gender Dysphoria
   • Trans Female Character
   • Science Experiments
   • Laboratories
   • Size Difference
   • Horse Sized Horse Girl
   • Hurt/Comfort
   • Childhood Memories
   • Animal Traits
   • Physical Disability
   • Injury Recovery
   • Gender-Neutral Reader-Insert
   • Reader-Insert
   • Fluff
   • Hugs
   • Crying
   • Transformation
   • Medical Examination
   • Teasing
   • Groping
   • Vaginal Fingering
   • Orgasm
   • Lesbian Sex
   • Aftercare

   Summary

   In order to be the best we can be, sometimes we just need a little push (and horsestrogen)

   Language:

   English

   Words:

   8,021

   Chapters:

   5/5

   Comments:

   175

   Kudos:

   131

   Bookmarks:

   19

   Hits:

   2,956