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   BFB (But it's actually Brother's Best Friend) by sukunasgirl420

   Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Work in Progress

   07 Aug 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Bakugou Katsuki/Midoriya Izuku
   • Bakugou Katsuki & Kudou | Second One For All User
   • Bakugou Katsuki & Kirishima Eijirou
   • Kudou | Second One For All User & Midoriya Izuku
   • Bakugou Katsuki
   • Midoriya Izuku
   • Kudou | Second One For All User (My Hero Academia)
   • Kirishima Eijirou
   • Alternate Universe - No Quirks (My Hero Academia)
   • Kudou | Second One For All User is Bakugou Katsuki's Older Brother
   • Musician Midoriya Izuku
   • Mechanic Bakugou Katsuki
   • Brother's Best Friend as Love Interest
   • Bakugou Katsuki Has a Crush
   • Pining Bakugou Katsuki
   • Slow Burn
   • Fluff and Humor
   • Romantic Tension
   • Bakugou Katsuki is Bad at Feelings
   • Eventual Smut
   • Underage Smoking
   • Underage Drinking
   • Illegal Activities
   • Minor Ashido Mina/Kirishima Eijirou
   • gross abuse of italics
   • Midoriya Izuku is a Little Shit
   • Bakugou Katsuki is Whipped
   • and he keeps returning for more lashings
   • Biker Bakugou Katsuki
   • Fluff and Angst
   • Midoriya Izuku is a Tease
   • Kirishima Eijirou is a Good Friend
   • queens of the stone age glaze
   • Top Midoriya Izuku
   • Bottom Bakugou Katsuki
   • Dirty Talk
   • Midoriya Izuku Rambles in Bed Too
   • Praise Kink
   • but like lowk barely
   • how much praise does there need to be for it to be a praise kink?
   • Blow Jobs
   • Penetrative Sex
   • Midoriya Izuku Has a Big Dick
   • Bakugou Katsuki Takes it Like a Champ

   Summary

   A world where Katsuki is Kudou's younger brother, and Izuku is the oh-so-fine bestie of Kudou. Everyone's alternative because I said so. Picture lots of eyeliner and vintage band tees.

   Kudou and Izuku are 22; Katsuki is 18.

   Thank you to @ley.ahne and @dndni108 on TikTok for the idea!

   Language:

   English

   Words:

   35,004

   Chapters:

   5/8

   Comments:

   380

   Kudos:

   1,687

   Bookmarks:

   395

   Hits:

   26,312

   Bookmarked by Ashidiot_420

   13 Jul 2026