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1. The Twelve Hour Problem by Zoe5577 (Gary5577)

   Fandoms: Harry Potter - J. K. Rowling  

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

   26 Aug 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Hermione Granger/Ginny Weasley
   • Hermione Granger/Luna Lovegood
   • Luna Lovegood/Ginny Weasley
   • Hermione Granger
   • Ginny Weasley
   • Luna Lovegood
   • Harry Potter
   • Ron Weasley
   • Lavender Brown
   • Parvati Patil
   • Fred Weasley
   • George Weasley
   • Alternate Universe - Canon Divergence
   • Potions (Harry Potter)
   • Futanari
   • Hermione Granger Has a Penis
   • Transfiguration (Harry Potter)
   • Explicit Sexual Content
   • Girl Penis
   • Tags Are Hard
   • Other Additional Tags to Be Added
   • AI-Assisted
   • Futa on Female
   • Horny Hermione Granger
   • Horny Teenagers
   • Hogwarts Sixth Year
   • Not Canon Compliant
   • Hogwarts Era
   • Sexual Experimentation
   • Experimental Potions (Harry Potter)
   • Blow Jobs
   • Underage Sex - Freeform
   • Consensual Underage Sex
   • Potions Accident
   • Complete

   Summary

   Hermione Granger loses a bet with Ginny Weasley and Luna Lovegood.

   As a dare, Ginny and Luna make her take an experimental potion Fred and George made.

   It gives Hermione an unexpected problem—a cock. And balls.

   Language:

   English

   Words:

   5,829

   Chapters:

   3/3

   Kudos:

   82

   Bookmarks:

   13

   Hits:

   4,327