
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/3479819.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Ao_no_Exorcist_|_Blue_Exorcist
  Relationship:
      Amaimon/Okumura_Rin
  Character:
      Amaimon_(Ao_no_Exorcist), Okumura_Rin
  Additional Tags:
      Swords, Sibling_Incest, Anal_Fingering, anal_play_with_a_sword, basically
      kurikara_is_defiled_:), Tail_Play, Underage_Sex, Plot_What_Plot/Porn
      Without_Plot
  Stats:
      Published: 2015-03-04 Words: 2033
****** Aniue ******
by HelloSleepwalkers
Summary
     Instead of Shura saving Rin, things take a different turn after
     Amaimon threatens to break his sword.
Notes
     If I have the characters out of character, please pardon me. This is
     my first Blue Exorcist fic.
     This fic may contain nuts-- er, I mean Amaimon fucking Rin using
     kurikara. Because there is never enough Amaimon/Rin in the world.
It happens so fast. One moment Rin is running, every muscle straining and
screaming to reach Shiemi before her body is broken under the weight of the
sagging ball pit. Something sinks in his gut, the terror of losing another
person he loves, as he realizes I'm not going to make it. Then there's blue
fire shooting from his hand towards her and for a split second he thinks what
have I done? before the flames miss Shiemi and save her life.
The next thing he knows he's fallen to his wobbling hands and shaking knees,
struggling to draw breath into his burning lungs after the exertion. The flames
that had glowed brightly around his body are now little more than dying embers.
Then, suddenly there's a weight on his back slamming him into the ground.
Already struggling to hold himself up, Rin goes down easily, inhaling grass and
dirt. The weight-- Amaimon's foot, Rin realizes with anger too exhausted to
remain fury any longer, grinds into the small of his back until he's wheezing.
"Oh? Is it over already? So boring..." Amaimon sighs.
Rin's heart pounds as he struggles for breath. He can barely hear the demon
over the blood rushing in his ears.
"Aniue has been holding me back, but... I think maybe I should break your
sword." Amaimon chirps.
Rin hears the click of Amaimon shifting the sword in his grip, and panic
bubbles up in his chest. His movements are sluggish and weak, but he manages to
turn his bruised face towards the side to glower at his tormentor and growl
through straining vocal chords, "Stop it."
"You still have fight in you?" the Earth King hums.
"Give... it... back," Rin tries again, "now."
"That's no way to speak to your older brother," Amaimon kicks at Rin's side and
nudges him until he's on his back. Despite his chance to escape with the
temporary loss of the demon's foot pinning him down, Rin can't muster the
strength to pull himself up. The brunet lays there weak and pliant like a
ragdoll, even as Amaimon settles on his chest with his knees on either side of
Rin.
Rin's sharply sucked in gasp of air is cut off as his lungs are once again
crushed, and he considers telling the bastard to get his heavy ass off him
before deciding to conserve air instead.
"I still don't get it," Amaimon mutters to himself, the confusion in his voice
making him sound like a little kid, "What about you is interesting to Aniue?"
Rin blinks, startled, when the demon's face is suddenly close to his and
Amaimon's cyan eyes squint at him, "You're weak, so maybe it's your pretty
face? Hm, I messed it up though," the demon king idly taps his index finger
against his lip, a wickedly sharp black nail glinting in the sunlight.
Pretty? Rin hisses mentally, messed up? It's not like it won't heal. Rin is
more concerned about his ribs being broken by the fucker sitting on him than
the scratches and bruises on his face.
Rin's body is throbbing all over, not just his face and chest. It occurs to him
that he's even aching in places that he hasn't been punched or kicked, and his
face goes warm. Oh. Oh god, now is not the time to get hard.
It must be the adrenaline, Rin realizes. His fingers twitch from their useless
position in the grass. His pants feel too tight, but he's weighed down and too
exhausted to move. Rin really, really hopes that Amaimon won't move backwards.
His pride has been crushed enough after this defeat without the asshole
thinking he gets off on pain or something.
"Get off," Rin grits out while narrowing his eyes at Amaimon.
To his surprise, Amaimon sighs once again and murmurs, "Fine, I might as well
break your sword now."
And of course, just Rin's luck, the demon slides backwards to get up, pausing
as his ass rubs against something hard. Rin hisses and throws his head back in
the grass, startled by the jolt of pleasure.
"Oh!" Amaimon suddenly lights up, seemingly struck by an epiphany, and appears
unbothered by Rin's... predicament. Rin's heart sinks. He's pretty sure that
look means trouble, "I know what I can do with the sword instead, something
more fun...!"
The demon king haphazardly discards the sword in the grass, and Rin eyes it. If
he can just reach it--
"Ah-ah-ah," Amaimon grabs a fistful of Rin's hair and drags his head up, "don't
you want to play with me some more?"
Rin winces at the sharp pain in his scalp and yelps, "It's not what you think,
damn it! It's just because of adrenaline--"
"So?" Amaimon tips his head to the side owlishly and reaches behind him to
knead Rin's cock through his pants. Rin's hips twitch up into the demon's hand,
but he at least manages to bite down on the noise he starts to make. Amaimon
continues, "I don't care why. I just want to play with you."
It's about then that Rin realizes he's screwed. Possibly literally, in the near
future. Amaimon had said something about the sword... Rin doesn't know what he
has planned, but he knows that it's not going to be good.
Amaimon's fingers flick upwards, towards the zip of Rin's pants, and undo it.
"Hey, wait," Rin blurts in a nervous attempt to slow things down, "I thought
you said we were brothers?"
"We're demons. Who cares?," Amaimon moves so his knees are on either side of
Rin's hips and he's leaning over the other demon. Amaimon's fingers hook into
Rin's waistband and pull both his pants and underwear down his legs. The
discarded clothing is tossed to the side.
Rin shivers as the cool air hits his heated thighs and he bites out
irritatedly, "At least fucking kiss me first!" His first time doing this...
stuff... was supposed to be with a cute girl, damn it. But now that Amaimon's
started, Rin's not sure he wants to tell him to stop.
Amaimon hums his agreeal and leans in, tilting his head and pressing his lips
to Rin's. Rin is startled when, without anything leading up to it, Amaimon's
tongue is suddenly licking into his mouth. The brunet licks back on reflex, and
discovers that the demon tastes like lollipops.
Amaimon's fingers wrap around Rin's cock, and Rin moans into the demon king's
mouth, both aroused and nervous because of the threat of Amaimon's claws being
close to his dick.
The demon kisses Rin with his skillful tongue until he's breathless again, lost
in the slick sounds of their lips meeting again and again and the feeling of
Amaimon's fingers stroking his cock. Rin feels hot and shivery all over, like
he's gonna melt into the grass. With every slide of Amaimon's fingers he feels
pleasure shoot down his spine.
And to his humiliation, Rin can also feel himself getting close. There's a coil
in his stomach drawing tighter and tighter, about to snap.
"A... ah, Amaimon, I'm gonna--" Rin huffs out, his eyes dark and glassy and his
face flushed when he breaks their kissing.
"No, you're not," the demon king corrects, his hand stopping in its movements
and pulling away.
"F-fuck you!" Rin pants with a scowl. He wants to come, needs it, but of course
the demon has to be a bastard.
"You're not going to do that, either," Amaimon declares cheerfully and sits up.
He glances at his fingers and sighs with great reluctance before biting the
sharp ends off of three claws with a quick mutter of, "they'll grow back..."
before he taps them against Rin's lips in a request for invitation.
"I'm not going to suck your fingers," Rin grumbles.
"Oh. You want it dry?"
"Want what dry?" Rin asks with the sinking suspicion that he already knows.
Considering what kind of weird crap the depths of the internet contain, he
knows that this sort of thing involves... butt stuff.
"Your sword."
"My- you mean you're going to... what?!" Rin splutters incoherently, glancing
at kurikara with a newfound wariness.
With Rin's mouth open while he gawks, Amaimon takes his chance and presses his
fingers in, eliciting muffled protests from the other demon.
Amaimon wiggles his fingers around over Rin's wet tongue until they're
sufficiently slick, then pulls them out, leaving a trail of saliva behind on
Rin's chin. He flips Rin over onto his stomach too quickly for the brunet to do
anything but yelp, "Oi--!"
"Lift your hips up," Amaimon tells Rin, spit-slick fingers tracing over Rin's
hole. The brunet considers telling him to fuck off, his face red from the
embarrassing position, before realizing that maybe that's not a good idea with
the demon king's claws so close to unmentionable places.
RIn shivers at the fingers stroking there and tucks his knees under himself,
burying his face in his arms since they're now in front of him
"Have you ever played with your tail?" Amaimon asks from behind Rin.
Played with it? Rin raises his eye brows and murmurs, "No...? Wait! Ah, there
was that one time I scared Shiemi by--"
Rin is cut off by a light touch on his tail, stroking the base. Rin muffles a
strangled half moan half curse in his arms at the shock of electricity that
shoots up his spine, "F-ffuh,"
Amaimon keeps rubbing his tail, sometimes stroking the base and other times
gliding a finger down the rest of it. Rin all but melts, and he wonders why the
hell did I never try this? He's pretty sure that given enough time, he could
come just from this, and this alone.
And then all of a sudden it stops, and something slides into Rin now that he's
relaxed. Rin's eyes widen and he clenches down around the intrusion, realizing
that it's Amaimon's finger.
Rin feels the finger wiggle around in him and surprisingly, it doesn't hurt.
When Amaimon adds another it does, but it's a good kind of hurt, a burning
aching stretch like Rin's muscles after training hard or poking at bruises.
Amaimon adds another finger and Rin thinks that it kind of feels good. But then
the demon curves his fingers and presses something that has Rin arching his
back, crying out loudly with his cock dripping precome on the grass below, and
Rin corrects himself. No, it feels amazing.
Amaimon's fingers linger a bit longer, stretching Rin more, and then all of a
sudden they're gone. Rin sees Amaimon grab kurikara from beside him, and
apprehensively twists his head to look over his shoulder.
Amaimon licks at the smooth hilt of the sword, and Rin resigns himself to never
being able to look at kurikara the same way again. Then, in the blink of an
eye, Amaimon is pressing the hilt into Rin.
"Eeeh," Amaimon blinks, "you're really sucking it in."
Rin's face practically glows red at the dirty words. His legs shake as kurikara
fills him, and he sighs out a wanton moan. His tail curls around the closest
thing, which happens to be Amaimon's arm. The hilt slides all the way in and
Rin feels so full.
Amaimon draws the hilt out then pushes it back in again. On a particular thrust
in Amaimon tilts it, and it hits that.
"Shh, aniue's here."
...Rin comes harder than he's ever before.
When Rin slowly comes out of his dazed afterglow, he sees Amaimon jerking off.
He rolls onto his back and sits up, about to hesitantly offer his help, when
the demon king's hand cups the side of his face and holds him still.
And then Amaimon comes on his face. Rin sits there with white dripping down his
cheek. His face is flushed and his eyes are blown wide after his earlier
orgasm.
"You... you..." Rin flounders, stunned.
Amaimon leans forward and licks Rin's cheek with a wide smile, "Let's play
again sometime, ne? Welcome to the family."
And then he's gone. Rin lifts a hand to his cheek and blinks. He doesn't know
whether to feel humiliated, angry or... giddy.
"Aniue," Rin tries it out on his tongue, his blush darkening.
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