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1. What a beautiful accident by fluffyoos

   Fandoms: Haikyuu!!  

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

   16 Nov 2025

   Tags

   • No Archive Warnings Apply
   • Iwaizumi Hajime/Oikawa Tooru
   • Hanamaki Takahiro/Iwaizumi Hajime/Matsukawa Issei/Oikawa Tooru
   • Hanamaki Takahiro/Iwaizumi Hajime
   • Matsukawa Issei/Oikawa Tooru
   • Hanamaki Takahiro & Oikawa Tooru
   • Hanamaki Takahiro & Iwaizumi Hajime & Matsukawa Issei & Oikawa Tooru
   • Iwaizumi Hajime
   • Oikawa Tooru
   • Matsukawa Issei
   • Hanamaki Takahiro
   • Seijoh4
   • Alpha/Beta/Omega Dynamics
   • Mating Cycles/In Heat
   • Pheromones
   • Semi-Public Sex
   • Vaginal Sex
   • Vaginal Fingering
   • Cunnilingus
   • Knotting
   • Omega Oikawa Tooru
   • Alpha Iwaizumi Hajime
   • Alpha Matsukawa Issei
   • Beta Hanamaki Takahiro
   • Scenting
   • Scent Marking
   • Nesting
   • Oral Sex
   • Face-Fucking
   • Foursome - M/M/M/M
   • Pack Dynamics
   • Pack
   • Oikawa Tooru Has a Vagina
   • Omega Verse
   • Polyamorous Pack

   Summary

   Oikawa knew his heat was close. Still, being one of his last volleyball practices in his highschool, he knew he couldn't miss it. And well, his heat wasn't due for another few days... right?

   Or: Oikawa's heat hits after practice. Thankfully, Iwaizumi is there to help him. He didn't think the two other members of his pack would be there to help him too.

   Series

   • Part 3 of NSFW Haikyuu Week 2025

   Language:

   English

   Words:

   5,781

   Chapters:

   1/1

   Comments:

   4

   Kudos:

   50

   Bookmarks:

   5

   Hits:

   1,196