Chapter Text
It went without saying that Dimple and Takuya had it pretty good these days.
Alternating between nights spent at Serizawa and Reigen’s apartments, they split their time pounding and being pounded, living out impatient days in states of titillated bliss until evening fell. Conspiratory smiles were exchanged, little waves and awkward goodbyes given, and, depending on the day, the duo split off with one of their lovers to spend the night utterly lost in sexual abandon.
Reigen insisted he didn’t mind--he’d listen to their tales of Serizawa’s growing confidence and interests with a glowing smile, only ever mourning that he couldn’t sit back and watch Takuya bend backwards on Serizawa’s mattress and moan beneath the larger man’s intimidating frame.
They kept thoughts of Reigen to themselves when they were with Serizawa, though he occasionally expressed curiosity about his new flings’ endeavors with their much longer-term partner. And how strange it was to be stuck between these two worlds, deeply fulfilled in their needs to lean over Reigen’s back and bark sleazy commands and, conversely, recoil under Serizawa’s weight and let his just-this-side-of-oversized dick put them in a stupor.
Strange, indeed. And pleasant at first--but then lines started getting blurred.
Takuya began to snap at Serizawa sometimes, commanding him to do this and that and listen to their every demand, before remembering his place in this relationship and lying back with a sheepish, apologetic laugh. Serizawa took it well, certainly, but he wasn’t keen on submitting in a scenario like this.
And conversely, Dimple would falter when they fucked Reigen, once even falling to his knees and coddling--downright worshipping --Reigen’s cock before remembering that he was supposed to be the one getting his dick sucked, literally and figuratively. Just as Serizawa had been patient and good-humored, Reigen was pleasantly surprised by all the attention (and the fantastic blowjob). All the same, it was confusing. Even after coming to the belated conclusion that they needed to take a few more nights to themselves throughout the week, most spent enjoying the peace and quiet together in Takuya’s apartment--things felt incomplete.
They missed Reigen’s shameless admiration and commentary when they were with Serizawa, and when they were with Reigen, they mourned the loss of Serizawa’s gentle command.
It all came to a head one uneventful afternoon in the office. Takuya and Dimple lazed on one of the couches; Serizawa worked behind the reception desk, and Reigen was entirely absent.
“ Dentist’s appointment I totally forgot about, ” he’d huffed over the phone. “ I don’t have anything scheduled ‘till this afternoon. You three can handle things without me, can’t you?”
“I think we’ll manage,” Dimple smiled coolly.
“ Thanks. Pray I don’t have gingivitis, would you?”
“Got our fingers crossed for you,” Dimple snorted. “See you in a bit.”
“ Love you .”
A crooked little grin crossed the spirit’s face, right on cue. “Love you too, hotshot.”
The line clicked. Before they could even drop Takuya’s phone on the cushion beside them, broad fingertips landed on the back of their neck, painting goosebumps behind them.
Dimple just barely turned to eye Serizawa, looming behind them and smiling meekly.
“You need something, big guy?” the spirit smirked.
“Well, need is a strong word, but…” Serizawa leaned in closer, took Dimple’s chin in his fingers and tilted it just so to press their lips together. The kiss deepened quickly, pulling a surprised moan from deep in Takuya’s throat.
Dimple nudged Serizawa away. “What if we get a walk-in?”
Without breaking eye contact, Serizawa lifted a finger towards the door--something clattered softly against its opposite side. “Oh, dear; Reigen must have knocked against the sign when he left. People will think we’re closed.”
Dimple gaped. “Katsuya, you horndog .”
Serizawa bent, planted his lips unceremoniously against Takuya’s neck and sucked hard.
“Wh-what if Reigen--”
“Reigen doesn’t have to know anything,” Serizawa shrugged, licking their collar apologetically. “Not that I haven’t noticed how he looks at you two when I touch you. He’d be pleased to hear we’re making good use of our time, wouldn’t he?”
Just the thought sent a shudder up Dimple’s spine, heat down to Takuya’s pelvis he didn’t understand. “We’ve created a monster, Takuya,” Dimple murmured against the rustle of Serizawa running his fingers through their hair, painting their neck with more hickies.
Well, you know me. I’ve kinda got a thing for monsters .
Dimple laughed softly at that.
“Dimple,” Serizawa whispered, voice already rough with arousal. “Go to Reigen’s desk.”
The spirit swallowed, heat flush in his belly. Takuya curled around him from within.
I want to, his host murmured, if you do, too.
Dimple nodded, rose shakily from his seat and crept over to the desk, all too aware of Serizawa’s eyes tracking his every move.
“Other side,” Serizawa clarified, smiling calmly as he followed. “Someone’s gotta watch the door, right?”
His hand met the small of Takuya’s back, guided he and Dimple to bend at the waist and lean over the surface of the desk.
“You got any lube on hand, big boy?” Dimple murmured roughly, peering back to eye the body casting a veritable shadow over him.
“No, but Reigen does.” Serizawa reached into one of the desk drawers beside Dimple, pulled out a pocket-sized bottle--and, after a bit more fishing, a condom.
“How-?”
“It’s my job to clean these drawers. Whether or not I wanted to know Reigen keeps all this stuff in the office doesn’t matter.” He bent to lay his front against the back of Takuya’s suit jacket, breathed hot air that tickled the back of his neck. “I bet it’s all for you, isn’t it?”
“Kinda figured he just carried the lube around with him, at the very least,” Dimple muttered. That yielded a laugh from Serizawa--a tiny break in this suspenseful scene, a reminder of their partner’s softness. Dimple’s nerves dissipated, but Takuya still held him close, just enough that their thoughts and feelings easily meshed. Serizawa reached forward to unbutton their slacks, tug them halfway down their thighs. When he was finished, they gasped at the feeling of the tented front of Serizawa’s pants press against them.
“Jesus,” Dimple swallowed. “ Need doesn’t seem like too strong a word in this case.”
Serizawa snorted. “Seeing you like this is--it just does things to me. I think about it on the nights you’re with Reigen, giving him the opportunity to walk in and see you two like this. M-makes me feel… like I’m in control, y’know?”
Dimple hid a deeply flustered smile behind Takuya’s arms, folded on the desktop. “You are in control,” he whispered, shutting his eyes. “You could do anything to me, Katsuya.”
He heard Serizawa sigh behind them, letting out a tense exhale as he began to rut against their backside. He pushed Takuya’s briefs down the slope of his ass, and Dimple heard the click of a bottle cap, the slick flickers of liquid rubbed over skin.
“You ready for the first one?”
“Am I ever not?” Beyond fallacious; even Dimple knew that. Just as always, the initial breach was a shock to his borrowed system. Brief alarm bells, a sense of invasion--in the spirit world, hosts weren’t meant to be shared. But then Serizawa would move just so, and he’d melt into every corner of Takuya’s body, feeling right , feeling human. Serizawa’s middle finger was buried to the knuckle inside them.
“B-better add another.”
“Already?”
Dimple smiled weakly back at him. “We’re running on limited time, buddy. I know you like to take things slow.”
Serizawa hesitated, leaned forward to worry at the ticklish back of Takuya’s neck. “I can go quicker this time, if you want.”
“Are you implying what I think you’re implying?”
He’s definitely implying what you think he’s--
Takuya was cut off by a harmonious groan shared between he and his spirit as Serizawa crammed another finger deep inside them, curled the two at the joint to hit their prostate head-on.
“ K-Katsuya!” Dimple keened, cheek pressed hard against the surface of the desk as he rocked forward.
“ Shh ,” Serizawa soothed him, free hand rubbing tedious circles up beneath the disheveled hems of his shirt and coat. It was more intimidating than it was comforting, and Dimple figured that was intentional. “You wouldn’t, um… you wouldn’t want the other tenants to think poorly of Reigen’s business, would you?”
“You’re dastardly,” Dimple chuckled weakly, useless to do anything but stifle his whimpers as Serizawa worked Takuya’s prostate unforgivingly. “Keep that up and I’ll come before you can fuck me.”
“Oh, I don’t know about that.”
Just as quickly, the fingers were gone, leaving Dimple feeling empty--and then the blunt pressure of Serizawa’s rubbered cockhead pushed against his hole, hot and impatient.
“How the hell did you get the condom on so fast?” Dimple asked exasperatedly.
“I put it on with my powers,” Serizawa replied, “while I was fingering you.”
The image made Dimple giggle so terribly that his stomach hurt, grin half-hidden against the wood of Reigen’s desk. Serizawa made him feel so young--not an easy feat, considering he’d long since surpassed the end of the line. New, inexperienced; flustered and amused by every little thing. “Put it in, then, since you’re such an efficient fuck.”
“If you say so,” Serizawa cooed. He snapped his hips forward effortlessly and buried himself to the base with an inaudible groan. Takuya, conversely, had to take control and slap his hands over his mouth to keep Dimple from crying out too loudly.
“K--Katsu --fuck--” the spirit gasped, reaching down desperately to clutch the base of his cock. Serizawa noticed, leaned down to get a look without breaking the pace of his thrusts.
“You’re already that close?” he said, wonder in his voice. “I’ve barely touched you.”
“Th-this is--a bit harder than you usually go,” Dimple snapped. Serizawa was right, of course; Dimple and Takuya were both still new to bottoming, but their sizeable time spent with Reigen had given them decent stamina. And here they were, holding back an orgasm by force just a dozen or so thrusts in.
It’s the door, Dimple, Takuya’s voice appeared in the fog, humored. You’re so on edge, staring it down.
“I-it’s just... wh-what if…”
What if Reigen sees us like this? Takuya’s voice was so smooth, so gentle. Bent over his desk in front of Katsuya--what do you think he’d do?
“Takuya,” Dimple whimpered. “T-Takuya, please.”
I doubt he’d be angry, if his penchant for hearing about our endeavors with Katsuya is any indication. How long do you think he’d be able to watch before whipping his dick out?
Dimple’s breath quickened, vision blurred as he stared at the door. Fear and arousal mixed dangerously in his gut--Reigen, seeing him like this? Only here and there had he allowed their beloved partner to see him in such a state of weakness, and he’d hardly been able to keep from falling apart, so overwhelmed by the attention and care and compliments he was all too unused to. And now here he was, willingly--blissfully!--allowing another person to put him in such a place of vulnerability.
Dimple could feel Takuya’s alertness heighten at the first sign of his nerves, but his host didn’t yield just yet.
Do you think he’s ever masturbated while we’re away, Takuya murmured, and thought about this? He was so flustered when we first told him that we’d let Katsuya fuck us. You know, I bet he’s sitting in the dentist’s chair hoping this is happening. Internally, Takuya laughed at his own suggestion--and then startled at the feeling of Dimple hitching over the surface of the desk and coming with a shuddering moan, legs trembling beneath them.
“Ah,” Serizawa panted, “m-maybe I really was going a bit too hard.”
“Don’t stop,” Dimple gasped, wringing out Takuya’s cock with a few final haphazard pumps.
Serizawa bent to wrap himself fully around the spirit and his host, binding them in his arms and yielding a noisy rustle as their clothes shoved up against one another. “Please tell me if it’s too much,” he huffed, rutting up into Takuya brutishly.
On the contrary, Dimple thought foggily: Takuya’s cock had stayed half-hard through their orgasm, and the pressure on their prostate as Serizawa’s cockhead clipped deep inside them didn’t do their erection any harm. All the same, being fucked straight through one ejaculation and into another was overstimulating--Dimple felt dizzy; he could do little more than croak out guttural pleas, let his eyes roll back.
“I’m coming,” Serizawa grunted. With a few final thrusts--deep, ticking to a stilted halt--he filled the condom with heat and sent his partners tumbling down into a second orgasm, dry but for a desperate spit of clear fluid.
Serizawa just barely managed to keep Takuya and Dimple upright, holding them by the hips even as he pulled out.
“S-so good,” Dimple whimpered. “You’re so good, Katsu.”
Serizawa breathed slowly, deeply. “Yeah. Yeah, you too.” He pushed one last kiss into the back of their neck before using his powers to lift them into his arms, tote them over to the same couch on which they’d been sitting. He lay them down gently, brushed Takuya’s bangs back from their eyes.
“Gotta… clean up,” Dimple murmured.
“Don’t worry, I’ve got it,” Serizawa whispered back. “You should probably pull your pants back up, though.”
Dimple barked out a drunken laugh, heaving his back up into an arch to yank Takuya’s briefs and slacks back up his ass and over their spent dick. He fell back down with a long sigh, breath short and raspy. For a while, everything was quiet but for the light bustle of Serizawa tucking the condom deep into Reigen’s wastebasket, wiping their cum from the underside of the desk and floor below, putting his clothes back in order.
And then the door opened.
“Hello-hello,” Reigen sang, ducking into the office. “Sorry about that, team. Didn’t realize I’d forgotten to flip the sign today, too; hope this past hour hasn’t been too boring.”
“Still have all your teeth, sir?” Serizawa cracked, barely glancing up from his paperwork to smile at his boss.
“No; sadly, they had to remove all of them and replace them with wooden dentures. Very unfortunate.”
Serizawa chuckled. “Indeed. The realism is immaculate, though.”
“Yeah, isn’t it?” Reigen snorted, peered around the room. “Where’s--oh!” He caught sight of Takuya’s shoes poking over one arm of the couch and strode over. Dimple couldn’t even think to move--when Reigen’s head popped over the back of the couch, he could only look meekly back, smile shy and wobbly.
Overcoming an expression of wonder, Reigen laughed, very quietly. “ Well. Aren’t you two a sight to behold.”
Dimple was suddenly very conscious of the hickies aching over every inch of his neck. “You got gingivitis?” he rasped.
“I can’t believe you three.” Reigen craned so far over the back of the couch that he had to pick one leg up just to reach his partners, press their lips together tenderly. “So naughty.”
Serizawa was silent. Listening carefully.
“And no, I don’t have gingivitis. Good thing for you; that would’ve significantly prolonged my time away.” Another kiss. Dimple’s blush only deepened. “And considering your current state…” kiss--“more time alone with your dear co-worker over there would’ve knocked you out of commission for good.”
“M-might’ve,” Dimple agreed, voice soft as could be. “Sorry.”
“What on earth for?” He took one of their hands, lying limp over their chest, pressed his lips against the skin. “You know how I feel about all this.”
Dimple found his voice hitched dangerously in his throat when he next tried to speak. He slung an arm over his eyes, took in a shaky breath. “I don’t want to toe any lines, Reigen.”
“Toe all the lines you want. I think it’s hot, knowing you’re making this foray into something totally new.” He kissed their hand again, and then once more. “I bet you look so pretty like that, too.”
While Dimple let out a little groan of embarrassment, Reigen turned briefly to Serizawa, shot him an acknowledging smirk.
He turned just as quickly back to Dimple. “Nonetheless--we have work to do. If a client comes in, please try not to look like you just got fucked into a coma.”
Once again, Dimple groaned unintelligibly in response. Reigen left him lying there, sat behind his desk cheerily (as if he were completely unaware of what had transpired there mere moments prior).
“Takuya,” Dimple whispered. “We need the two of them.”
You think Katsuya will bite?
“Probably. Seemed to like talking up the scandal, anyway.” He spoke vaguely, aware of Reigen and Serizawa’s ears. “I-I--I want him to see us like that.”
Even if it scares you?
Dimple hesitated. “Fine line between fear and curiosity, eh?”
He felt Takuya engulf him from within, warmth in the depth of his being. As long as you promise to be transparent if it gets to be too much, my love. You were already straddling being too overwhelmed for your own good today.
“Like you were much help,” Dimple snorted, “tease.”
I know. I shouldn’t have been prodding at you like that.
“No, I liked it.” Dimple felt his cheeks blossom with warmth. “And… for the first time in a while today, I didn’t feel as if we were missing anything. I don’t want to keep moving back and forth like this.”
Reigen’s been interested in Serizawa from the start, Takuya agreed. We just need to bring them together.
“With you and I right in the middle.”
Takuya chuckled. Happily.
-
They spent the night at Reigen’s, still too wiped to do anything but curl up around him and listen, humming occasional confirmations of consciousness, as he aimlessly spoke. The moon rose out of view; the room went quiet as Reigen slipped closer to sleep.
“Hey,” Dimple eventually murmured.
“Yeah?”
“You should come with next time Katsuya has us over.”
Reigen pulled back, beam bright and unbound. “I should, huh?”
Dimple nodded, and Reigen inched back against his bare chest to lean up and kiss his cheeks.
“Have you talked to Serizawa yet?”
“Not yet,” Dimple admitted. “He… talked about how much he liked thinking you could have walked in and seen us like that, though. H-how he’d thought about it before.”
“Oh- ho!” Reigen crowed. “I wouldn’t have taken him for an exhibitionist. You , on the other hand...”
“Me? What gives you that idea?” Dimple muttered shyly.
“I heard you and Takuya talking this morning, drew my own conclusions. I told you when you first started doing this I’d like to see it for myself, didn’t I?”
Dimple nodded.
“Well, ask Serizawa about it tomorrow, then. If he says yes, I can tail you back to his place.”
“Better we do Takuya’s,” Dimple said. “He has a bigger bed.”
“I get to sit on the bed?”
“Wh--” Dimple blinked. “Of course you do! What, you thought we’d make you pop a squat on the floor?”
“Not necessarily,” Reigen replied, laughing, “but you have to keep in mind Serizawa’s not used to bringing anyone else into this kind of scene. He’s loose around you, but having a whole ‘nother participant in the bedroom might throw him off his game.”
“You really think so?”
“I do. He’s a creature of habit.” Reigen nestled his face into Takuya’s broad chest, lazily kissed one painted pec. “You’ll have to sit down and talk with him. Should all go smoothly, though, count me in.”
Dimple’s heart quavered with love for the little conman, and he tightened his hold on him, resting Takuya’s chin on the prickly peak of Reigen’s head. “‘Goodnight, ‘Taka.”
They rarely called him that--reserved for times of softness, vulnerability.
“‘Night, dynamic duo,” Reigen murmured back. “Love you so.”
-
Dimple didn’t bring it up with Serizawa the next day, though, nor the morning proceeding. It was only that night, two days after their talk with Reigen, that Dimple and Takuya found the nerve to close their eyes to the kind, concerned smile that had shut down their every attempt.
“ Mmh, ” Dimple eloquently began.
Serizawa broke his intent kiss and pulled back, face open with curiosity. “What is it?”
They were sitting on Serizawa’s couch, crowded together with tangled legs and hands entwined. Dimple leaned forward, pressed his forehead into Serizawa’s collar.
Go on, Dimple. Can’t hurt to ask.
“W-we want--we want Reigen to be here. See us do this.”
Serizawa blinked. “Right now?”
“No! No. Well--” Dimple shook his head. “Next time, I guess. Or, y’know, whenever you feel… ready.” When Serizawa said nothing, Dimple added, “I-I just… liked it a lot when you bent us over his desk. T-talked about him walking in and watching you do that to me.”
For fuck’s sake, he was getting hard just remembering. What in the hell was he supposed to do if Serizawa didn’t--
“I’d like that, I think.”
Dimple looked up, eyes wide.
“I’m just nervous about… somebody else being there, is all. I’m only just starting to know what you two like,” Serizawa admitted.
“You don’t have to do anything with Reigen if you don’t want to,” Dimple reassured him hastily. “He only wants to watch. You can totally ignore him, for all he cares.”
“I don’t want to ignore him,” Serizawa insisted, smiling tiredly. “I like Reigen a lot. And when I see the way you three act together, I--I can’t help thinking how nice it’d be to participate in that. But I’m not sure how I’d fit in.”
“No way to find out without breaking the ice,” Dimple shrugged.
Serizawa nodded, chuckling softly. He ran a wide palm over Takuya’s thigh. “Do you miss him when you’re with me?”
“Yes,” Dimple said honestly, “and I miss you when I’m with him.” He looked down at their folded legs, black and blue slacks and socked feet mixed up in knots. “I like being able to feel the way I know Reigen does when I’m with him. Like Takuya and I don’t have to strain ourselves to make you feel good. It’s... so easy with you. But with Reigen, I get to feel--kind. Relied on. He’s so grateful.”
Serizawa leaned in to kiss the bridge of Dimple’s nose.
“I don’t want to have to choose between those things, if I don’t have to. We want you both so badly.”
Serizawa traveled to his lips, gracing the split between them with his tongue. “You can have me,” he murmured. “I want to try it. I want him to see what I can do to you.”
Dimple shuddered, collapsed forward to burrow in Serizawa’s embrace. “Better get practicing, then.”
Serizawa laughed and clamped his hands around Takuya’s hips to pull him into a recline beneath him. Dimple slung his legs around Serizawa’s ass, pulled him in close, and Serizawa made quick work of the button and zipper of Takuya’s slacks.