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Kacchan, Please, Shut Up by simplybkg
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
22 May 2026
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Summary
Presented with the opportunity, Izuku helps Katsuki through his first experience of arousal and sex.
As hot as Kacchan's inexperience is, Izuku quickly learns pleasing Katsuki is much harder than he thought it'd be. And not because Katsuki was difficult to please - but because he wouldn't stop making comments that made Izuku constantly combat premature ejaculation.
Bookmarked by Fre99
14 Jun 2026
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Spiralling back to You by Femmie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
27 Jun 2024
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Summary
“A quirk accident?”
“Yeah, he was punched right in the gut!” Kaminari exclaimed, punching the air as if he was the one who did it. “Looked really painful. You should go check up on him.”
Or Izuku is hit with a quirk that causes him to gradually get younger and lose his memories and Katsuki looks after him while he recovers.
- Language:
- English
- Words:
- 22,271
- Chapters:
- 10/10
- Comments:
- 147
- Kudos:
- 1,230
- Bookmarks:
- 251
- Hits:
- 14,337
Bookmarked by Fre99
11 Jun 2026
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Featherlight Confessions by forevrr4in
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Jul 2025
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Summary
During patrol, a kid’s quirk accidentally gives Izuku and Katsuki tiny birds that reflect their true feelings. They’re supposed to disappear in a week—but in that time, the boys are forced to face everything they’ve been avoiding.
Turns out, love is hard to hide when it’s literally sitting on your shoulder.
Bookmarked by Fre99
10 Jun 2026
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New Perspective by noel_0
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
15 Dec 2024
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Summary
“Ka—Kacchan,” he gasped in surprise, and wow, did that sound weird in Bakugou’s voice.
“Ugh, don’t say it like that,” Bakugou cringed. “I can’t believe I’m stuck in your loser body.”
It was strange watching himself. It was like an out-of-body experience, and well, it literally was.
“My body is nice,” he argued.
“Sure, it is,” Bakugou said sarcastically. “Tch, and I have to go sleep in your room next to your All Might shrine.”
Deku silently pointed at the bookcase with only All Might merch on it.
“You shut up,” he snapped, face flushing. “That—That’s different!”
Or, when Bakugou and Deku get hit with a body-swapping quirk, they learn a little bit more about each other's struggles.
Series
- Part 1 of Chronic Pain Fics
Bookmarked by Fre99
09 Jun 2026
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Crying my Heart Out by Femmie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
28 Feb 2023
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Summary
He knows he’s rude and blunt and maybe he doesn’t always express the way he feels in a way people actually understand- But that’s not his fucking problem!
Or Katsuki gets hit with a quirk that makes him cry when he’s around someone he cares about.
Series
- Part 5 of Bnha shorts
- Language:
- English
- Words:
- 7,005
- Chapters:
- 1/1
- Collections:
- 5
- Comments:
- 42
- Kudos:
- 2,344
- Bookmarks:
- 347
- Hits:
- 19,986
Bookmarked by Fre99
08 Jun 2026
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Self (Fulfilling) Love by SapphireTwilight
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
08 Feb 2025
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Summary
Izuku accepts his life the way it is. He's got a great job at UA, he gets to do part-time work as a hero, and he still has Katsuki. Sure, maybe not 100% the way he wants, as he's in love with his best friend, but he can't put that problem on Katsuki's shoulders. Izuku's already been a big enough burden to him, and people don't always get everything they want... right?
When he bumps into a girl with a unique quirk, the world is ready to put that theory to the test. But will Izuku be able to learn from his past mistakes? Or will his desire to do everything on his own (literally) break his friendship with Katsuki first?
Bookmarked by Fre99
08 Jun 2026
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drunk on milkshakes by xlyks
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
29 Mar 2025
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Summary
It’s just 24 hours. That’s what Katsuki tells himself.
Or
Kacchan gets hit by a quirk that gives him tits (and something else...)
Bookmarked by Fre99
07 Jun 2026
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lasting impressions by omontz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
13 Nov 2024
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Summary
Katsuki gets de-aged to sixteen years old. Izuku does his best.
- Language:
- English
- Words:
- 6,600
- Chapters:
- 1/1
- Collections:
- 5
- Comments:
- 194
- Kudos:
- 3,911
- Bookmarks:
- 736
- Hits:
- 27,563
Bookmarked by Fre99
02 Jun 2026
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Deku Dating Simulator! by Fangirl_on_fire
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
01 Jun 2023
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Summary
Deku laughed at something Katsuki said, a dumb comment that wasn’t even supposed to be funny, and all Katsuki could do was stare at him stupidly and think, oh.
This was Deku. Deku, who had a million All Might figurines and cried at least twice a week and tried to catch a kitten with sardines when he was a kid. As if that wasn’t bad enough, the fucker was an alpha, too, which meant they were predisposed down to their genetics to clash with each other.
In which Deku’s trying his best to court Katsuki, Katsuki’s just trying his best, and maybe everything would go smoother if Katsuki stopped visualizing their relationship as a dating simulator.
Series
- Part 2 of Basic Instinct
Bookmarked by Fre99
31 May 2026
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Basic Instinct by Fangirl_on_fire
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
18 Nov 2022
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Summary
Deku ran a searching stare over the bed, then sniffed, evidently picking up the sweet scent of cinnamon and burnt marshmallows emanating from the bed. There was a heap of crumpled blankets on the mattress and a few pillows arranged haphazardly over the mattress, but it looked more like a crash landing site than anything resembling a nest.
Slowly, Deku turned to face Katsuki, his eyes shining with curiosity. “Is this supposed to be a nest?”
Series
- Part 1 of Basic Instinct
- Language:
- English
- Words:
- 3,093
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 25
- Kudos:
- 1,157
- Bookmarks:
- 168
- Hits:
- 9,289
Bookmarked by Fre99
31 May 2026
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Unintended Study Break by SpicyJam
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Oct 2023
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Summary
Katsuki makes a show of moving his textbooks, pens, and papers closer to the edge of the table, carefully arranging them until they’re perfectly aligned. With a casual toss of his hand, he gestures for one of his favorite cushions off to the side. It’s definitely in reaching distance from him, but Izuku happily bounds over and grabs it for him.
Katsuki places the stitched pillow down deliberately slow, brushing dust away before he says, "Lay down right here for me."
Izuku blinks, halfway between standing and sitting. “Huh?”
Katsuki is already back on his feet, hands on his hips as he waits for Izuku to obey.
“Y’wanna help right? Well, my heat is coming fast, alpha. Need you to ease the ache for me so I can focus on studying.” Katsuki gestures emphatically to the cushion. “You don’t want me to fail just because I can’t stop thinking about getting fucked, do you?”
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Or, Katsuki's in pre-heat and it's getting in the way of his studying. Luckily his alpha pops in, eager to help however he can.
- Language:
- English
- Words:
- 2,996
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 12
- Kudos:
- 1,245
- Bookmarks:
- 193
- Hits:
- 16,038
Bookmarked by Fre99
31 May 2026
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Ouroboros (NSFW) by SwordsandArrows
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
06 May 2026
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Summary
There's nothing overtly special about the day - at this point, Katsuki and Izuku hanging out has become routine. Except, Izuku can't help but to notice there's something a little different about Katsuki - he just couldn't put his finger on what... (The NSFW version)
Bookmarked by Fre99
26 May 2026
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This December, I'll remember by sagelike_sunshine for Piggycats_be_mooing
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
27 Dec 2020
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Summary
“So, what can I get you gentlemen today?” she asked, finally placing her full attention on the two men before her. She took in their appearances, her eyes slowly widening at the realisation.
“I’ll have a mocha with three pumps of caramel please. Shinsou?” the freaking number one hero said politely.
She turned to Shinsou, whose eyes scanned her up and down before answering, “A black coffee please.”
Aka, a cute, fluffy fic about how an OC catches Underground Hero Shinsou Hitoshi's attention.
Bookmarked by Fre99
21 May 2026
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Lavendar & Sage by Bella_Donna_Poison
Fandom 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
26 Aug 2023
Summary
Shinsou Hitoshi and Saito Aiko met at UA. This work is just a collective snap shot of their life. Domestic fluff, smut, family life. Pro hero Mind Jack and his future business wife.
If you enjoy and want a cohesive story, rather than essentially snap shots, let me know!
- Words:
- 3,385
- Works:
- 3
- Bookmarks:
- 5
Bookmarked by Fre99
19 May 2026
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Make love with me, Kacchan by Sooniechan
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
12 Aug 2022
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Summary
Katsuki was excited. He had finally found a cheap apartment complex that wasn't in a shady neighbourhood and his neighbours were great. That was until Midoriya Izuku moved in and seemed to fuck a new person every night. Katsuki was the only one who seemed to be upset about it because Izuku being an alpha meant people were too scared to fight back.
But Katsuki wasn't a scaredy-cat. He needed his beauty sleep! So, when Katsuki had enough and tried to tell the damn alpha to keep it down, he finally saw what he actually looked like.
And, wow, was this the worst time ever? Izuku was starting his rut.
And he had just found the perfect partner to spend it with.
- Language:
- English
- Words:
- 2,670
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 16
- Kudos:
- 1,340
- Bookmarks:
- 156
- Hits:
- 18,722
Bookmarked by Fre99
18 May 2026
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Broken Nests but Resolved Feelings by TermitesForMinecraft
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
15 Nov 2024
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Summary
Izuku goes in Katsuki’s room and sees his bed is a mess so he decides to clean it for him, he doesn’t learn till later that that “mess” was his nest. Izuku makes it better though and spends Katsuki’s heat with him, where they then admit their feelings.
Bookmarked by Fre99
18 May 2026
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Handsome White Omega Lies by MischiefArtist
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
15 Jul 2021
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Summary
Katsuki's not a liar. Every time the question of his secondary gender came up, Katsuki didn't answer. Deflected it with another question. Changed the subject. His constructed fiction is so tight, not even Deku knows Katsuki's an omega. Katsuki almost believes it all himself, some days.
Katsuki hasn't had a heat in ten years. But today, the blockers aren't working. Today, his body revolts. To make matters worse, Deku is bound and determined to nurse Katsuki through his 'sickness' by showing up at Katsuki's doorstep. Katsuki tries to keep it together. His hormone-addled brain has other ideas...about Deku and his delectable alpha scent, specifically. How many days do heats last again?
- Language:
- English
- Words:
- 5,960
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 31
- Kudos:
- 1,555
- Bookmarks:
- 171
- Hits:
- 13,185
Bookmarked by Fre99
18 May 2026
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Quarrels, Kacchan, and Me by MilknHauni (AmaMoona)
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
25 Apr 2024
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Summary
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Kacchan can be a little frustrating at times…And adorable…And beautiful…And very, very pregnant.
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A series of arguments that show just how in love Izuku is with Katsuki. And of course, vice versa.
Bookmarked by Fre99
18 May 2026
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Who Would You Be For Me by yoontros for BunnyBlossomBee
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
20 Apr 2025
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Summary
Katsuki reaches into his pocket again and pulls something from it this time. It’s a little wolf statue, carved from a dark gray quartz. The wolf is in a fighting stance, its teeth bared against a nonexistent attacker.
“It’s beautiful,” Izuku says softly.
Katsuki places it in front of him. “I want you to have it.”
“You…” Izuku can’t think through a wave of dizziness, and it’s only then that he realizes he hasn’t been breathing. “You want to mate?”
Katsuki and Izuku have been inseparable in their adult years, but Izuku doesn't think much of it until Katsuki pops the question. Now Izuku has to rethink years of friendship, what he wants from life, and if he's willing to go after it.
- Language:
- English
- Words:
- 12,224
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 24
- Kudos:
- 1,035
- Bookmarks:
- 190
- Hits:
- 8,850
Bookmarked by Fre99
18 May 2026
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Learning to Nest by O_oari
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
26 Dec 2023
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Summary
Katsuki was stressed. He knew exactly why he was stressed but he didn't know how to fix it. All week he has been trying to build a shitty nest just like any other Omega would do. Everyone told him it would come naturally and he would ‘just know’ but he didn't! Most Omegas learned how to nest from their parents but Katsuki had a Mother Alpha and a Beta Father. Neither of them knew how to nest so Katsuki was never taught.
Katsuki picked himself up and walked to the only person he knew might be able to help. He was an Alpha and probably knew Jack Shit about nest building but it couldn't be any worse than Katsukis attempts.
------or-----
Izuku helps Katsuki build a nest.Series
- Part 2 of Twitter Threads <3
Bookmarked by Fre99
17 May 2026