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WALL-CLIMBERS by That_Familiar_Feeling
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
19 Sep 2021
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Summary
Izuku Midoriya is a Biologist living alone on a deep space station that was abandoned, he with it, to orbit around a ‘lesser’ Re:financially useless planet system. He was always an overly curious creature and his innate curiosity gets him into quite the sticky situation when a stowaway takes an interest in the scientist.
Turns out, his ‘Kacchan’ won’t be the only creature interested in him, and his days as a lonely scientist are numbered.
He felt useless, nerves frayed and like his skin was in a constant itch. There was something else, something gnawing in his stomach and warming the back of his throat. His arms ached, his belly felt like a knot was tying itself with his guts. All the while he thought that he was starting to...to.. He heard a voice. Coming back from the Communication tower, he heard someone whisper,
NeedPreviously posted on twitter, you may know this as the KrDkBk Alien AU posted around the start of 2021! With Alien creatures Kiri and Baku and their odd human Izuku!
- Language:
- English
- Words:
- 24,521
- Chapters:
- 5/5
- Collections:
- 1
- Comments:
- 48
- Kudos:
- 1,348
- Bookmarks:
- 333
- Hits:
- 24,368
Bookmarked by DayShadow21
03 Jul 2026
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Lost in Dream City by Testnight
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
05 Oct 2021
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Summary
During a field trip to a quaint little seaside city, little Katsuki Bakubun gets lost. His boyfriend (and future mate) loses his mind a little bit and when they finally reunite, he can't go another minute without claiming Katsuki as his.
Kinktober Day 4: Breeding
Check the series tag for the other days.Series
- Part 4 of Kinktober by Cheri
Bookmarked by DayShadow21
01 Jul 2026
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“Every birthday, every coin thrown into a fountain, every shooting star…” Eijirou kisses Katsuki firmly. “You’re all my wishes come true. Every wish has always been for you.”
Bookmarked by DayShadow21
28 Jun 2026
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peony petals by Star_Boy_Baku (orphan_account)
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
03 Dec 2021
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Summary
"Eijirou", he pants. "I want you."
"Yes?", the lips are back on his knee but now they travel further up, kiss his thigh through the flimsy fabric. "How do you want me?"
Katsuki squirms and holds onto one of Eijirou's horns for balance.
"K—Kiss me, dragon prince."
And Eijirou dips between his legs and kisses him.
Bookmarked by DayShadow21
28 Jun 2026
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Summary
Eijirou's only ever wanted Katsuki, even before he knew what that meant, and to him it didn't matter that they were brothers.
- Language:
- English
- Words:
- 8,103
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 18
- Kudos:
- 1,034
- Bookmarks:
- 134
- Hits:
- 13,144
Bookmarked by DayShadow21
28 Jun 2026
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Rome Wasn't Built in a Day (Might as Well Try for Two) by pockyhucks
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
20 Jul 2021
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Summary
“I think—” Eijirou rumbles, and Katsuki feels a strange little itch settle under his skin at the tone of his voice, familiar and deep and fucking sexy, god. “—that you’re built like a twig, and I could fit my entire hand around your throat.”
“Kacchan,” Denki says firmly, eyeing Eijirou with a curling grin. “Switch with me.”
- Language:
- English
- Words:
- 9,014
- Chapters:
- 1/1
- Collections:
- 4
- Comments:
- 65
- Kudos:
- 2,373
- Bookmarks:
- 573
- Hits:
- 27,251
Bookmarked by DayShadow21
27 Jun 2026
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Stranded; Find Me in the Dark by MarbleAide
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
23 May 2021
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Summary
Bakugou gets stranded on a desert planet only to find that one local is more hospitable than he could have ever imagined.
- Language:
- English
- Words:
- 14,554
- Chapters:
- 2/2
- Collections:
- 1
- Comments:
- 66
- Kudos:
- 2,010
- Bookmarks:
- 320
- Hits:
- 31,476
Bookmarked by DayShadow21
26 Jun 2026
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Closet Demon by Thatonegoth
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
24 Apr 2022
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Summary
"Fuck," is the only thing Katsuki could really say. What would you say after getting fucked to hell and back by a demon with crimson hair?
Bookmarked by DayShadow21
26 Jun 2026
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And Then There Were Three by SamFullbuster
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
01 Dec 2020
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Summary
Tetsutetsu has always loved Bakugou, but Kirishima got there first, so he's content to just watch. Until he's asked for more.
FEATURING: Shindo, a shitty alpha
Bookmarked by DayShadow21
23 Jun 2026
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Summary
The smart choice would be to pick the sweet guy he’s had a crush on since the start of the school year. Or maybe he should pick the dangerous option who’s always had him feeling secretly curious.
Either would be better than saying—
“Why do I have to choose just one?” Katsuki blurts out.
Red and grey eyes both widen with surprise.
Katsuki finds out that if there’s something he really wants, all he has to do is ask.
Bookmarked by DayShadow21
23 Jun 2026
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The Chase of the Dragonborn by Sai_Saiyan
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
28 Apr 2024
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Summary
“They are indeed beautiful, and I can see by the way they carried themselves that they have seen battle,” The redhead prince said and began to walk toward Katsuki, his clawed feet made a clicking noise as he reached the Crown Prince, “However, they are not princesses.”
“We want to keep the tradition, and claim a royal from the Bakugou bloodline, you see,” Tetsutetsu continued as he stood beside his cousin, “These women, these war maidens are not from the Dragonborn line, they will not be able to withstand us, your highness.” Then a dark smirk drew on his handsome face as he licked his forked tongue over his razor-sharp teeth, “I wouldn’t want them to die by our hands when they cannot handle mating us, Prince Katsuki. You see, we tend to go feral in our ruts. How would a lovely war maiden far when they can’t get our knots inside them, Your Highness?” At those crass but truthful words, the women flinched and Katsuki did too.
“Then, I will do it. I’ll follow the decree and be claimed by the two of you since you believe that only the Dragonborn lineage is worth it.”
Series
- Part 6 of Bang Extravaganza!
- Language:
- English
- Words:
- 4,428
- Chapters:
- 1/2
- Collections:
- 1
- Comments:
- 6
- Kudos:
- 85
- Bookmarks:
- 13
- Hits:
- 1,542
Bookmarked by DayShadow21
21 Jun 2026
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True Worship by FoolishFortuna
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
10 Apr 2025
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Summary
“Oh dear,” a light chuckle sounded, and knees thudded beside Katsuki. The rich, heady scent of strong alpha washed over him, and Katsuki gave an involuntary swallow that didn’t go unnoticed. A single finger skimmed up his throat over where the bump had moved, others joining it to cup around his jaw.
Scent gland shamelessly smeared all the way from ear to shoulder in the next moment, and a low, rumbling sound rattled out into the wide open field. That wrist took an immediate sweep down between his pecs, and Katsuki finally flicked his eyes open to scowl.
“Do you mind?” He growled, and Kirishima’s face split into a beaming smile.
“Katsuki!” He exclaimed, fingers spreading wide to pin him to the ground before he even attempted to move, and Katsuki curled his top lip back slightly in silent warning. “I bought you some food. Were you throwing things around again?” His head lowered swiftly, until their noses almost touched, and Katsuki tensed on instinct, “are you still upset about–?” The question cut off to hang in the air as Kirishima’s lips settled into a pout.
- Language:
- English
- Words:
- 17,555
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 58
- Kudos:
- 1,019
- Bookmarks:
- 193
- Hits:
- 9,486
Bookmarked by DayShadow21
13 Jun 2026
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Under False Pretenses by ArashiKumo for Chainslobber
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
10 Oct 2024
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Summary
Katsuki has a side business that hits all the boxes: something he's damn good at, something that appreciates his incredible body, and something that makes damn good money. He's happy to provide his services to strangers, but when his former classmate, Shinsou, hires him for a total package, Katsuki doesn't find a reason to turn him down. In fact, he's intrigued that someone he'd call a friend wants to see him nearly naked cleaning his home.
And it's not like Shinsou would hide the real reason he's paying so much for Katsuki to come over, right? Right??
Bookmarked by DayShadow21
03 Jun 2026
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Tortured Clarity by Gwyn (GwynKiri)
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
09 Mar 2025
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Summary
Heroes aren’t all cracked to be - So imagine when a Villain or two comes to save you?
You tend to look at things a little differently.
🧡 Bakugo loses some people in his life, but gains three others.
Bookmarked by DayShadow21
30 May 2026
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Don't snitch on your friends by InShinsouHitoshis_Pants
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Apr 2025
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Summary
Bakugou Katsuki doesn't want to listen. To no one. Which isn't anything new, but it causes more and more problems for the teachers. Aizawa is tired of it. Good thing that he fucks Bakugou's best friend Hitoshi on almost a daily basis who tells him how to shut the explosive blonde up.
Series
- Part 11 of ShinZawa adventures
Bookmarked by DayShadow21
30 May 2026
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Caramel Cream by keythealien
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
15 Aug 2025
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Summary
There was no better way to spend a day off than spoiling his kitten, even if Hitoshi didn't view a trip to the groomer's as an act of affection. Watching his precious boy shining in the sunlight and come alive with adventure was good enough for Shouta.
But... when was Hitoshi supposed to go into heat, again?
The lock on the door snapped open with a faint green light from the keypad against the wall. Hitoshi hadn’t even heard the sliding of Shouta’s ID card. He hesitated as the door swung open... A pathetic little whine tightened his throat.
His man’s footsteps were quick to round the table, and Hitoshi meekly met the startled onyx gaze. Shouta’s expression shifted, minute as it was, to alarmed confusion, then hastened to understanding all at once as he took in the scene. He crouched beside the stressed hybrid, using the chair for support. “I thought you were a little warm this morning…"
His man chuffed, the sound having a warm, baritone note underneath that washed over his bones like a sedative. He was held tighter, pulled closer to Shouta’s lips. “Are you begging? Don’t beg, little one…”
Alternatively: the one where a kitten falls in love with a man
Series
- Part 2 of Midnight Cream
Bookmarked by DayShadow21
26 May 2026
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Don't Wake Sensei by smolbbybun
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
11 Oct 2025
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Summary
Hitoshi crawled into Aizawa’s bed, heart racing. The man was passed the fuck out and would not be waking up any time soon but Hitoshi was still nervous. This was his teacher, his mentor, someone who could get him kicked out and banned from UA High. But he couldn’t take it anymore. He’d spent countless nights fucking his sloppy cunt to Aizawa-sensei and his fingers just weren’t enough.
OR, Shinso handcuffs Aizawa to the bed and has his way with him
Series
- Part 11 of ★ ⋮ Kinktober 2025⸝⸝
Bookmarked by DayShadow21
23 May 2026
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To Drown and Call it Devotion by SmuttyLittleAuthor
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
06 Nov 2025
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Summary
Something moves within the water, too fast and too large to be a shark or a whale. Something obsidian and iridescent, reflecting off the setting sun. Aizawa leans over the edge, scanning the waves for a sign of movement. It’s brief. A flash of pale beauty that’s all wrong, too sharp, too vivid. Then it appears again. A mess of sea-salt tangled lavender hair, mouth curled into a soft smile. Violet eyes, sharp as purple-fluorite meet his for an instant before the face vanishes beneath the swell of the next wave.
Aizawa’s breath leaves him. “Someone’s in the water…” he whispers, more to himself. Only the gulls answer, crying loudly. Whoever it was is gone, swallowed by the ocean waves that roar once more, then still.
Three days later, the wind dies. The sea is as smooth as glass, the sky an endless expanse of blue. Even the gulls have ceased their songs. The sea is calm.
The ship drifts and Aizawa does not sleep. He feels watched. He tosses and turns in his cabin as the quiet of the sea rocks the vessel.
On the eighth night, the storm returns with a vengeance
Bookmarked by DayShadow21
17 May 2026
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Taking A Dip (Into You) by KitKatrix
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
30 Apr 2026
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Summary
Katsuki makes his way to a waterfall prepared to tend to his wounds when he runs into Dragon King Eijirou.
What starts as a clean-up becomes much more as Eijirou offers to help.
Bookmarked by DayShadow21
02 May 2026
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Summary
Getting the worst news from the worst person you know (and hadn't Rita enjoyed telling him that little titbit) isn't quite enough to stop Harry taking the DADA job at Hogwarts...but Draco Malfoy's employment at the castle is certainly enough to give him pause when Pureblooded students start attacking without reason.
Completed, updates on Fridays.
Bookmarked by DayShadow21
20 Apr 2026