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“I’m sorry, sir.”
Reigen was being his usual self—too nosy, too demanding, too overwhelming. “Mm, an apology is a good start, but it’s not enough.” Reigen bulled his way into Serizawa’s line of sight. He sat directly in front of him and crossed one long leg over the other. He let his tie pool in his lap and leaned back on one hand to emphasize the stretch of his body. He watched Serizawa’s eyes follow the movement before glancing up at his face. They locked eyes.
“Impertinent,” Reigen muttered. Serizawa’s dark eyes were always so beautiful. If he kept looking at Reigen that way, he’d make him lose the plot. “You think you can look your betters in the eye?”
Bookmarked by Noobulus
18 Jul 2026
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It's not a date, he doesn't think: the two of them in an izakaya, their faces haloed by lantern light. It probably isn't, anyway. Never mind that Serizawa is all dressed-up in a new, adorable red sweater that clings to every inch of his belly.
Never mind that Reigen can't stop looking.
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OR: Serizawa's smitten and chubby, Reigen's guilty and pining, and they both might combust if they don't do something about it.
Bookmarked by Noobulus
17 Jul 2026
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“What do you think, Mob? Sounds like something we can handle, right?”
But Reigen knew his own question was rhetorical. There was no spirit, no matter how strong, that could cause Mob much trouble. Unlike Reigen, Mob could handle himself.
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Reigen, Serizawa, and Mob set out to exorcise a spirit in an abandoned hospital. A simple job turns out to be a way bigger handful than expected, and Reigen gets hurt.
Bookmarked by Noobulus
16 Jul 2026
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Reigen stood up, arms still covering his crotch, and took a few steps forwards towards Dimple, forcing him to back up.
“Are you gonna leave me alone, or do you just want to keep mocking me?” His body language was ostensibly confrontational, but his voice was shaky, and his face was redder than ever. There was an unmistakable look of desperation on his face.
“Are you trying to sound threatening? Cause that almost sounds like a request.”
Reigen said nothing; he just stood there, his stare getting more intense. He gulped and straightened up his posture, but he was clearly holding something back. The longer he stared, the more Dimple felt a shift in the atmosphere. Or had it been there from the beginning, and he just didn’t realize?
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Dimple visits Reigen's apartment uninvited and catches him in a very compromising act.
Bookmarked by Noobulus
16 Jul 2026
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Reigen's in heat, who better to call for help than Serizawa?
Bookmarked by Noobulus
16 Jul 2026
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Ever since Serizawa could remember, people had been afraid of him. Whether it was kids at school calling him creepy, or well meaning relatives who backed away when he asked for a hug. He’d understood very early that touch was a luxury.
Suzuki’s hesitation had not been out of fear, but a clinical sense of duty and nothing more. He certainly never gave Serizawa a hug. Serizawa had come to accept this loneliness, though he wished he could change it. Reigen had no such qualms about touching him. He was happy to rough him up a little, and that felt freeing, especially when they began to date.
Bookmarked by Noobulus
15 Jul 2026
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Lemme Get Me Some a That by AtomicSludge (bunbondoeswriting)
Fandoms: モブサイコ100 | Mob Psycho 100
18 Nov 2025
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Reigen meets a spirit whos maybe a little too friendly
Bookmarked by Noobulus
15 Jul 2026
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Reigen and Serizawa head out of town with zero notice to exorcise a poorly described Love Hotel... with a BDSM dungeon in the basement. Turns out, requesting the closest rooms to the disturbances gets them... the Master Suite. Due to the... heightened emotional contact the Dungeon has had with so many people, tracking down the spirit/curse messing is like trying to find an ice cube in a snowdrift. It's Serizawa's first out-of-town job with his boss, and Reigen is trying his best to make sure it isn't a traumatizing, so he tells his assistant to relax and play a video game while he takes care of interviewing the hotel's co-owner. Serizawa chooses a game at random and discovers what ERP means. :) Meanwhile, Reigen draws the attention of whatever is screwing with this Hotel, and he needs Serizawa's help... Which Serizawa is only too happy to provide.
Bookmarked by Noobulus
15 Jul 2026
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Serizawa vs The Kids of the Man of his dreams by LadyNighty12
Fandoms: モブサイコ100 | Mob Psycho 100
16 Feb 2026
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At first, Serizawa thought he was imagining things. There were so many teenagers that went to Reigen for guidance or friendship, and it was only natural that the man always agreed to give them his time. So what if they interrupted when Serizawa wanted to make a move on Reigen? That wasn’t their fault at all. It’s not like they were doing it on purpose, right?
Right?
(Spoiler alert, they were most definitely doing it on purpose)Bookmarked by Noobulus
15 Jul 2026
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Serizawa is surprised to find that Dimple takes advantage of Reigen's body, but that doesn't stop Dimple from taking advantage of Serizawa's body as well. Reigen and Serizawa are definitely not safe from Dimple's teasing and tricks.
Bookmarked by Noobulus
14 Jul 2026
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"You know," said Dimple, "Staying at a love hotel would be a lot more fun if this thing wasn't smack dab in the middle of the bed." Considering what it was, however, it only made sense that it would be.
Bookmarked by Noobulus
13 Jul 2026
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Bookmarked by Noobulus
13 Jul 2026
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The Paradoxical Company of Personal Space by silverspoongoon
Fandoms: モブサイコ100 | Mob Psycho 100
15 Oct 2019
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Dimple and Reigen offer to let Serizawa sit in to observe while they go about their more intimate business, bringing to the forefront the psychic's lack of experience and seemingly arbitrary boundaries.
Bookmarked by Noobulus
13 Jul 2026
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Serizawa Katsuya is trying to be a better person, but adult life feels so hard. He gets some help from an unexpected place, and together they find they're more alike than they had thought.
Bookmarked by Noobulus
13 Jul 2026
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Summary
A trilogy of t4t Serirei porn oneshots from Reigen jacking off about Serizawa to them actually getting together.
- Words:
- 20,858
- Works:
- 3
- Bookmarks:
- 18
Bookmarked by Noobulus
13 Jul 2026
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Reigen shifted in bed. He knew if he pulled off his boxers, the fabric would be damp. Not that he could see in the dark, but the heat of himself was undeniable.
He had been good! When he got off, maybe the man in question was tall and dark haired, but faceless! Plausible deniability and all that.
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Reigen goes home after the yokai fight and gets a little sweaty.
Bookmarked by Noobulus
12 Jul 2026
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Reigen’s (Boyfriend Special) Massage by Ties_that_bind
Fandoms: モブサイコ100 | Mob Psycho 100
31 Oct 2022
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Reigen notices that Serizawa is tense and offers to help him relax with a massage. They get a little carried away.
Bookmarked by Noobulus
12 Jul 2026
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Reigen confesses to Serizawa that he wants to try something new, and Serizawa isn’t sure he has the confidence to go through with it. Dimple has a suggestion that allows Serizawa to fulfill all of Reigen’s desires.
Bookmarked by Noobulus
12 Jul 2026
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Serizawa gets a new game and falls back into his old habits, much to Reigen’s annoyance because he is concerned about his lover (and not because he is a needy bitch!) Luckily, Reigen is a problem solver, and figures out the best way to distract Serizawa from his game.
Bookmarked by Noobulus
12 Jul 2026
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After an exorcism, Reigen and Serizawa ache for one another.
Bookmarked by Noobulus
11 Jul 2026