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The Truths in Your Lies by entirelykats
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
29 Oct 2025
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There, teetering on the rooftop's edge, the boy stood. The image of Deku standing there with his green hair dancing in the wind burned into Katsuki's mind. His harsh grip on the railing was evident as his knuckles turned white, as if he was afraid to fall.
or
Izuku might've taken Katsuki's advice a little seriously... but did he really?
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keep my heart warm in your arms by orphan_account
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
20 Oct 2022
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"K-Kacchan?" he asks, voice small and careful. The scent of cinnamon and woodsmoke surrounds him, and a spicy kind of cologne he's only ever known one person to wear. He can't see very well in the dark of his room, but he's too nervous to reach out for his bedside lamp.
As if reading his mind, his bedside lamp flickers on, and Izuku blinks spots out of his eyes until Kacchan's face comes into focus—and then a second one, similar but distinctly different, and neither of them quite his Kacchan.
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Izuku wanted a Kacchan who wants him back and he ended up with... two?-
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Project: Heat by ellslane
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
01 Aug 2018
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Katsuki can do this. He can control himself around Deku, who’s scent has spiked in sweetness and is dripping in pheromones. He can maintain his composure as they work together on a school project. He can keep himself in check as his stupid smell wafts through the air, and directly into his nose.
He can’t do this.
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My Soul is Wrapped In Red by s_the_queen for j_jabbers
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
25 Jan 2023
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Katsuki has never seen color. In the stark whites of the snowy mountain where he lived, he assumed he wasn't missing much.
Then he met Izuku.
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Soulmate AU - when you look at your soulmate you see color.
Written for BKDK Kazahana and for Jabby's birthday!! <3Series
- Part 4 of Swag's Soulmate AUs
- Language:
- English
- Words:
- 3,630
- Chapters:
- 2/2
- Collections:
- 3
- Comments:
- 76
- Kudos:
- 3,132
- Bookmarks:
- 467
- Hits:
- 19,427
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Fools Feeling Foolish by ContraryBee
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
19 Jan 2022
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And here they thought they had gotten all that stunted shit out of the way.
After heat and rut pass, Izuku and Katsuki are left with emotions, and of course, end up bungling them up just a bit.
Nothing a good healthy Talk with a capital T and some good sex won't fix.
Series
- Part 2 of Fools
- Language:
- English
- Words:
- 5,668
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 24
- Kudos:
- 2,294
- Bookmarks:
- 242
- Hits:
- 23,471
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Fools do as Fools Love by ContraryBee
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
10 Dec 2021
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Summary
They’re both kind of…stunted.
Honestly, the stress of being hero students (in their class, in the war, in the terrible, stressful, traumatic situations they just kept getting into) was just too much. Hence, Izuku and Katsuki’s puberty stages were essentially ignored throughout school.
Then they’re eighteen and nineteen respectively, graduated, working, settled down in a shared apartment. And Izuku is sent home to undergo his required, long overdue heat.
Cue two idiots FINALLY clueing in that they're mates.
Series
- Part 1 of Fools
- Language:
- English
- Words:
- 7,896
- Chapters:
- 1/1
- Collections:
- 8
- Comments:
- 40
- Kudos:
- 3,995
- Bookmarks:
- 656
- Hits:
- 50,765
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Forbidden Apple by pinkMilady19
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
04 Jan 2025
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Summary
“We’ve decided to get married,” Mitsuki announced, her voice firm yet calm.
Inko smiled, her hands clasped tightly in her lap. “We’ll be one family now. Isn’t that wonderful?”
Izuku beamed, his green eyes lighting up with excitement. “Kacchan! We’re going to be brothers!”
OR: Katsuki and Izuku became brothers when their moms decided to get married. Brothers with a loving relationship, indeed.
- Language:
- English
- Words:
- 4,103
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 27
- Kudos:
- 994
- Bookmarks:
- 127
- Hits:
- 19,863
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it's the dirtiest clean i know by noxum
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
23 Apr 2026
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“Can I sit on you, Kacchan?”
His boyfriend sighed, muttering something that sounded like “clingy bastard” under his breath, but he scooted his chair back and patted a hand on his leg. Izuku bit his lip, squeezing his thighs together a bit. “No, Kacchan.” He said softly. “Can I sit on you?”
He grabbed the hem of his shirt, pulling it up until it lifted above his waist. Kacchan, attention caught by the movement in his peripheral, turned his head just in time to see Izuku bare his cunt, completely naked under his shirt, a few shiny strings of slick clinging to his lips and upper thighs.
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regalo by 4nonymuse
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
20 Apr 2026
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Summary
Being a good friend is exhausting; being Izuku’s lover is much more rewarding.
Series
- Part 1 of sore skin, soft whispers
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From the Beginning by SilverStarz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Apr 2026
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Summary
"Kacchan," Izuku whispered. He swallowed nervously and figured there was no use in putting it off any longer.
Katsuki hummed and continued to lick his skin, making a happy noise when Izuku pressed a kiss to his head.
"I-I um, well, I just found out and please don't be mad, but—" Izuku stopped to take a calming breath, which only sort of worked. "I'm pregnant."
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Pictures of Us by Sibuenoquientienehambre
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
26 Oct 2025
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Summary
Auntie Mitsuki wanted to project a short video of them for their wedding, with pictures of all of his life phases. As babies, as toddlers, elementary school, middle school, hero school and finally some recent three.
The problem was the middle school ones.
or KTDK scrolling trough Katsuki's filthy Izuku oriented gallery.
Series
- Part 1 of Ktdk
- Part 1 of Sex Pics BkDk
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A Happily Ever After by vilullaby
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
11 Nov 2020
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Summary
“W-what?” Izuku stuttered out. Did his groom not like him? What an awful start to a marriage, his mother would be ashamed. Oh god, it was his body, wasn’t it? He knew he should have-
“Stop muttering.” The alpha growled. Izuku quickly slammed his hands over his mouth, apologizing. Katsuki sighed. “You look fine, idiot. You’re just,” The blonde looked at the omega’s much smaller frame and the height difference between them. “You’re very small.”
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put your love down soft and sweet by orphan_account
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Dec 2022
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Summary
It's their fourth winter as a mated couple when Izuku broaches the subject of pups.
"I'm ready, Kacchan," Izuku tells him, sitting beside their roaring hearth as they eat quietly.
"Ready for what?" Katsuki asks, and Izuku hums softly.
"Children," he answers. "A family of our own."
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Izuku and Katsuki decide to start a family.-
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what the water gave me by orphan_account
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
06 Dec 2022
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Summary
"It's like I'm challenging fate," he says to a hermit crab he finds tucked into a crevice in the rock. "I'm daring it to knock me into the water just to show me who's boss. At this rate, it's probably going to win."
"Something's gonna knock you into the water, alright, but it won't be anything as nebulous as fate," a voice says, tone wholly unamused.
Izuku startles so hard that he forgets to use his quirk to catch himself as he slips from his perch on the rock into the ocean.
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Izuku goes on a forced vacation and meets the love of his life.- Language:
- English
- Words:
- 6,881
- Chapters:
- 2/2
- Collections:
- 1
- Comments:
- 19
- Kudos:
- 1,215
- Bookmarks:
- 192
- Hits:
- 9,678
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his to spoil, his to love by 4nonymuse
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Mar 2026
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Summary
Izuku and Katsuki have been starved of each other for weeks, and when they finally give in, it’s messy and overwhelming.
Or, the one where a heavily pregnant Izuku knows exactly how to look at Katsuki to get what he wants.
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punk tactics by opiawrites
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Mar 2026
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Summary
“But Kacchan,” Izuku pouted. “I don’t like that you're grounded all the time. At home and school!”
“And what’s with you, huh?” Katsuki teasingly replied, resting his arms on the window frame as if he didn't just climb up the balcony like it was nothing.
“I-” Izuku pursed his lips, feeling his cheeks heating up, “I can't see you if you're always grounded.”
That made Katsuki’s teasing grin stretch wider.
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Need You Now by bundie for paperwetwithink
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Oct 2023
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Summary
Izuku looked so soft in the night, cocooned in too many blankets and curled around Katsuki’s pillow like it could be a suitable fucking substitution for the real thing. Idiot.
A cute idiot, though. With the way he nuzzled his face deeper into Katsuki’s pillow like he wanted to catch a scent of him, nose scrunching like a bunny, hips wriggling against the sheets.
Katsuki flexed his hands, resisted the violent urge to squeeze his husband, and instead made his way to the bed, leaving a trail of his clothes behind. (Later, he’ll get to them later. Right now he has a nerd to touch.)Katsuki comes home late one night to find his husband asleep.
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Cherry by bundie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
20 Jan 2024
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Summary
It’s not like he actually has feelings for Deku. He’s just making sure no one can hurt the little fucker. He still maintained that sweet, innocent naivety from high school, despite everything that had happened to him. Katsuki had seen people try to take advantage of that and he’d been the one to comfort the damned nerd when his heart got broken again and again.
So why not just cut the issue off at the root–leave no space in their lives for someone to fuck with Deku again.
No one has gotten close to the nerd since Katsuki took it up to be his personal hero. Good, because Izuku doesn’t need anyone except for Katsuki.
Katsuki and Izuku go on an away mission together and it tests Katsuki and his "not feelings" for the nerd.
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Things You Shouldn't Do With Your Best Friend by SilverStarz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
07 Feb 2026
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Summary
“Kacchan,” Izuku moaned as Katsuki thrusted into him, making him feel impossibly full. “Y-You shouldn’t be doing this.”
Katsuki kissed up his neck, his lips sending sparks across Izuku’s flushed skin. “Why not?”
His heavy body pressed Izuku against the wall, keeping him pinned whether he wanted to be or not. He slammed his hips against Izuku’s ass, fucking into him deep and hard.
“What—a-ah—about Kirishima?” Izuku managed to ask, his intelligence drifting away from him with every thrust of Katsuki’s cock. “He’s your b-boyfriend.”
“I don’t give a fuck about him,” Katsuki said, gripping Izuku’s hips. “I never even let him kiss me.”
“Wha-What?” Izuku gasped out. “Then why—”
“You’ve always been mine, Izuku,” Katsuki whispered possessively. “And you always will be.”
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Distracting Desire by SilverStarz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
10 Jan 2026
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Summary
“Fuck,” Katsuki groaned. “You sound so pretty moaning for me.”
“Ka-Kacchan, please,” Izuku whispered weakly, the denial of his desire getting harder and harder to voice. He wasn’t even sure if he was asking for Katsuki to stop anymore.
“Please what, Deku?” Katsuki asked, and Izuku could hear how he was smirking. “Want me to fuck you harder?”
Izuku couldn’t bring himself to respond—he knew the answer. Katsuki probably did too. He wasn’t able to do much more than moan, anyway.
He wanted Katsuki to keep fucking him, he wanted to be fucked faster, he wanted Katsuki to sink his teeth into his neck and claim him. He wanted to be his forever.
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