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Rituals of Gratitude

Summary:

"I don't want to suck his dick," Denji insists for what seems like the thousandth time while scrunching up his nose. "It fucking stinks, dude," he explains further when neither Aki nor Yoshida take pity on him. To be honest, it had been kind of his idea, always running his mouth and getting his dumb butt into these kinds of situations. Literally.

or

Denji finally shows his senpais some appreciation.

Notes:

This is just smut. Only smut. No plot. Smut.
Smut, smut, kinky smut.
Enjoy.

Work Text:

"I don't want to suck his dick," Denji insists for what seems like the thousandth time while scrunching up his nose. "It fucking stinks, dude," he explains further when neither Aki nor Yoshida take pity on him. To be honest, it had been kind of his idea, always running his mouth and getting his dumb butt into these kinds of situations. Literally . Yoshida's smile widens and he places one hand over Denji's shoulder. He probably means to be encouraging but both Aki and Denji know him too well to know that's not the case.

With Denji naked in the middle of Aki's apartment, kneeling and less than an inch away from his hard cock… well, Yoshida must be itching to do something. He looks over Denji's shoulder and Aki rolls his eyes. He nods while inspecting his bandages. 

"Is this how you thank me for saving Aki-senpai? He was about to get eaten by that devil… You saw that, right?" Yoshida taunts Denji. His words stab Denji like a knife and he can picture Aki — his Aki — almost dying in the hands of that gross Spider Devil. All the while Denji was trapped under rubble, trying to claw his way out when… Yoshida came about.

"Fine! Just… make it quick," Denji acquiesces, directing a soft glance at Aki who keeps checking the dressing of his wounds when he thinks he's not being watched. Yoshida's creepy smile reaches his eyes, which shine with unrestrained excitement. He slaps Denji's cheek with his dick, smearing precum all over his skin.

"Oops," Yoshida says, not even apologizing. "Open wide, come on. Be a good little boy for your senpais."

And that does it. Denji blushes and he tries to ignore the twitching of his cock but to no avail. He's weak to pleasure even if it means he'll have to suck some dude off. He wraps his lips around Yoshida's straining erection and, for the first time, Yoshida sighs. 

Instead of giving him some time to adjust, Yoshida pushes the rest of his length inside Denji's mouth, hitting the back of his throat. Instinctively, Denji tries to swallow. He's not some kind of slut but he'd be lying if he said the intrusion doesn’t feel nice. 

"Look at that, Aki-senpai," Yoshida gasps, tilting his head to the side where Aki has already taken his dick out of his pants and underwear. Out of the corner of his eye, Denji can see the impressive member Aki has, how there's already so much precum gathering at the head. A foreign thought begins to form in Denji's mind but it disappears before taking shape when Yoshida starts his savage thrusting. He yanks Denji's hair, forcing him to keep all of his attention on him. "That's it, you're doing great," he praises Denji like he's actually doing anything more than taking what Yoshida is giving him. 

Well, Denji is gagging and struggling to breathe. At any rate, he'll take the compliment; not every guy would just accommodate such a huge dick inside their throat!

"Let him go, you're going to hurt him," Aki says. And yet, he's gotten closer to take a good look at Denji's sloppy work, and he's rubbing his dick. If he came right about now, his cum would land directly over Denji's eyes. Fuck, that's kind of hot, isn't it?

Yoshida hums in agreement but he doesn't let go of Denji's hair and he just keeps going until he groans, shooting his load down Denji's throat. To his credit, nobody has to tell Denji that he should swallow. A life of guzzling down whatever he could find on the streets is more than enough to get that message through Denji's skull. Yoshida's spunk is salty and sticky and… 

And Denji wants more.

He opens his mouth again, just in time for Aki to shove his member into Denji's thirsty mouth. "You're tight, Denji… Denji !" Aki screams, emptying his balls and slipping out slowly, like already missing that wet warmth wrapped around him like a glove. Made to be fucked silly. 

This time, Denji tries to keep the cum in his mouth for a while longer. He swirls it around as if it were just mouthwash or something. Aki looks at him funny, his eyes darkened. He has an expression that Denji has never seen on anyone before. Grabbing him by the back of his neck, Aki forces Denji up. His knees are scraped and his hair is plastered against his forehead. He's the definition of debauchery .

Denji is about to protest when Aki kisses him, his tongue playing with his release that Denji is yet to swallow like a good little bitch. Heh, maybe he should ask these two to get him a collar next time one of them almost kicks the bucket. 

"Thanks," Aki breathlessly says, a string of saliva connecting him to Denji for merely a second or two before separating enough that it breaks. He lights up a cigarette and blows smoke at Denji's face, who keeps coughing. His eyes water and he's being treated like dirt but he's high off that feeling and maybe part of him likes being used. 

 "Ready for more?" Yoshida asks, taking a cheeky glance at Denji's dick. Oh… he came. A white substance coats his flat tummy and the inner part of his thighs. And yet, he's still game. 

"Bring it," Denji answers, smiling and showing all his pointy teeth. Yoshida lets Aki take a quick smoke break and he motions for Denji to get on all fours on the floor. His poor knees hurt when they make contact with the hardwood floor again but Denji can take it. He's Chainsaw Man, nothing can scare him.

A few seconds go by and Denji can feel the anticipation bubbling up in his chest. 

Something cold and slimy lands directly over his butt and Yoshida starts kneading it with both hands. Denji moans, his mind fuzzy and weird. He thinks this is how it must be to drown. 

Yoshida fingers him open then licks one stripe from his hole to his taint and back to his hole again, slipping inside and mixing lube with saliva.

"That's weird," Denji half-heartedly complains in between moans and Yoshida slaps his butt in retaliation. He keeps pressing something inside Denji that makes him whine like a little pig because of how good it feels. That's what's so weird, how crazy Denji's going over Yoshida sticking his tongue and fingers in. Is it always like this? Denji's only had a taste of what sex with another man is like and he's already dripping precum all over the floor. 

"Ah, what was that? Dogs don't talk, Denji," Yoshida says and Denji cries when the fingers are suddenly replaced by something much bigger. The head of Yoshida's cock presses into Denji and for a second it's in both their minds that it just won't fit. But of course, Denji's rim gives and Yoshida's tip pops right in. "Well, damn… Ever thought of becoming a full-time whore? You'd be great at it," Yoshida taunts but even Denji can tell he's struggling not to cum prematurely.

Regaining just a little bit of his usual confidence, Denji cants his hips back, engulfing a couple more inches into his hungry hole. He distantly wonders if this shouldn't be more uncomfortable for him, if the fact that he's —at least— part devil is not playing a part in the pleasure he gets from having a pulsating member filling him up.

"You're really asking for it, huh?" Yoshida asks but it's clear he doesn't expect an answer. Denji moans anyway, falling into character. Hey, if he's going to be a whore he might as well do his best. Whatever. He'll have time to mull over this later.

"Having fun?" Aki's gravelly voice interrupts them and Denji remembers that vague idea he had earlier on when he had Yoshida's dick in his mouth instead of his ass. He wants to have them both… Yoshida and Aki. Preferably at the same time.

Yoshida thrusts with such momentum, Denji is propelled forward and he's again reacquainted with Aki's dick, his lips brushing against the underside of his girthy erection. Like a possessed man, Denji takes it in his mouth slowly, while Yoshida unexpectedly gives them a moment. He can feel his black eyes taking in the scene before him: Denji paying homage to Aki's dick. It's heavy and when the head reaches his throat Denji clenches around it.

Well, he clenches around Yoshida too, who grunts and resumes his pounding. Aki doesn't even try to match Yoshida's pace but he doesn't need to. The way things are going, Denji is always propelled forward by the sheer intensity of Yoshida drilling his insides and —simultaneously— making Denji gag on Aki's cock.

"Are you enjoying this?" Aki asks Denji, his thumb caressing Denji's red, sweat-covered skin. He lovingly stares down at him, as if admiring a work of art. Something precious and delicate. 

And then, his hand travels down to squeeze Denji's throat and feel his cock through Denji's skin. 

Spots dance in the corners of Denji's eyes and there's a buzzing in his ears but he can still hear Yoshida groan and knead one butt cheek with his fist.

"Fuck, he got tighter," he sighs, his words directed at Aki. "Wanna have a taste?"

"Yeah, pull out," Aki answers, still not letting go of Denji's throat and Denji knows he can't die —not really— but the exhilaration the pain gives him is still there. "I want to cum in his pussy."

I don't have one of those , Denji thinks, confused. 

"Too bad, Aki-senpai," Yoshida says at the same time that Denji gasps and coughs after Aki releases him from his grip and slips out. Air fills his lungs, amplifies every sensation, and yet Denji keeps sinking under. It’s a true out-of-body experience and he doesn't realize what's going on until he's with his back against Yoshida. They're on the floor, with Yoshida hugging his waist from behind, one arm under Denji's knees so both his legs are pressed against his chest. 

"I also want to cum in his boy pussy," Yoshida states and two fingers — Aki's fingers — join Yoshida's dick inside Denji. It's too much and Denji wonders if this is his limit but he grows used to them embarrassingly fast. 

"Think he's ready?"

"Yeah. Come on, I'm not waiting for you, senpai."

The words grow muffled and Denji can't distinguish who is saying what anymore. He yells when another dick joins the one already wrecking him. Yes! This is exactly what he wanted. 

When Aki manages to bottom out, things get interesting once again. Out and in are all the same: When Yoshida is almost all of the way out, Aki pushes forward, and so on. Together, they reshape Denji's tender insides, ruining him for anyone else.

Aki kisses him when he spills inside and Yoshida follows right after. Denji is now stuffed full and there's a slight bump in his lower belly to prove it. He cums all over himself when Aki's dick slips out. 

"I think you've had enough," he says, perhaps trying to get Yoshida to do the same, to give Denji a moment to recover. But Yoshida, stubborn and mischievous, doesn't. And, despite his recent orgasm, he's still hard. 

"Nah," he refuses to let go, hugging Denji even tighter and playing with his nipples, "I think you owe me your life, Aki-senpai. I can do whatever I want."

So they continue. 

By the time they're through with him, Denji is an incoherent mess all covered in cum and lube, and spit. There are bruises on his neck, bite marks on the insides of his thighs and his voice is hoarse and weak. Yet, he can say with absolute certainty, he loved every second of being used. 

"Let's get you to bed," Aki's soft tone surprises him and, when he helps Denji up, more cum lands on the floor. His distended hole keeps winking, trying to go back to normal, but after having been made to accommodate two large dicks, it's going to be a while. 

Denji clings to Aki, arms going around his neck. 

"I'm happy you're alive," he confesses while yawning, and Aki tenses, one of his hands rubbing soothing circles over Denji's back.

"I could tell," he answers.