
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/414260.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Ao_no_Exorcist_|_Blue_Exorcist
  Relationship:
      Amaimon/Okumura_Rin
  Character:
      Okumura_Rin, Amaimon
  Additional Tags:
      dub-con, The_sex, Canon_-_Manga
  Stats:
      Published: 2012-05-28 Words: 1840
****** Join Me In Hell ******
by orphan_account
Summary
     “Oh, my dear boy, we are demons. Born to sin for pleasure and
     wealth,” Amaimon let his hand sink back down to where he straddled
     Rin’s thighs with his own, rubbing along sensitive sides, “and as
     Satan’s own spawn, how could you expect any less from me than to
     indulge myself to the fullest?”
     PWP
Notes
     Smut fic for a friend's birthday, written a while ago on LJ but
     uploaded for my new A03 account. Enjoy!
It was purely a slip-up.

Back arching up from the damp ground recently splatter-painted with rain, dewey
droplets hanging off of every surface in the amusement park, including the boy
himself, while sharp woodchips and small stones clung to the reddening skin of
his back.

Yeah, it  had  to be, he was known for making ridiculous mistakes, and this was
no different.

Soft sounds that couldn’t be placed on the moaning and groaning of rusted
joints of underused rides arose loftily from his youthful throat, a tune to
join the whistling wind.

He hadn’t meant to end up like this--and he  surely  fought it to his utmost--
finding himself, mentally and physically, bending to the power of Satan’s will.


Or, rather, the incarnate of Satan, his  brother .

As a rather distracting tongue slid up the expanse of the brunet’s exposed
neck, he shuddered, blanking on all thought as he wrapped his arms around his
half-brother.

“Don’t tell me you’re thinking of someone else,  Rin ?” Unnaturally warm breath
ghosted past the boy’s ear, and he could feel the others grin curl over razor
canines, the deep voice echoing in the boy’s head long after the other had
spoken.

Rin shot his glazed eyes to meet his brother’s half-lidded gaze defiantly.

“Tch, all I’m thinking about is how disgusting this is,” he spat, despite the
shivers that crawled up his spine from delicate touches encircling his navel.

The hand caressing his heated skin stopped, and Rin cursed himself inwardly for
wishing it hadn’t, while Amaimon languidly trailed a slim finger up to the
other’s jaw, tilting the boys chin upward, giving his indifferent forest eyes
better leverage to peer into Rin’s sharp blue orbs. Rin shivered involuntarily
again, absentmindedly blaming the cool wind for teasing his skin, feeling
somehow pierced and invaded by his elder’s unfaltering stare.

Surprisingly smooth lips lowered to slide sensuously against Rin’s own, and
Amaimon muttered lowly, with his same sardonic smile,

“My dear boy, we are  demons , born to sin for pleasure and wealth,” Amaimon
let his hand sink back down to where he straddled Rin’s thighs with his own,
rubbing along sensitive sides, “and as Satan’s own spawn, how could you expect
any less from me than to indulge myself to the fullest?”

His heavy words wrapped themselves around the brunet’s mind, suffocating him
slowly, in reluctant acceptance. When sly lips finally captured his own and a
hot tongue slithered into his warm cavern, Rin melted into the other’s fiery
touch, barely noticing when sinful hands snaked beneath the waistband of his
trousers and icy fingers wrapped around his straining erection.

There was an overwhelming starkness in the heat emanating from the other
demon’s mouth into his own, and the freezing wet fingers that slid slowly along
his shaft, bringing ecstasy in a flash of white to Rin’s eyes. As Rin’s eyes
clenched shut and his jaw opened wider t let a throaty moan escape him, Amaimon
deepened the kiss with sharp teeth nipping at Rin’s tongue and lower lip.
Coppery blood seeped into the exchange, causing the brunet’s eyes to open wide,
pooling crystal clashing immediately with olive orbs, Amaimon continuing to
devour Rin with his unnerving stare while the other had to keep his from
rolling back in pleasure.

“ Aa-haah !”

Another loud moan was joined by a whimper as Amaimon tightened his grip on the
boy’s arousal and swept his skilled tongue against soft and bruising lips.
Rin’s eyes were forced to clamp shut from blinding pleasure again, and he
suddenly realized that Amaimon hadn’t blinked even  once  through the whole
ordeal, which caused more shivers of pleasure run down his spine. Amaimon's
shark’s grin still beamed against Rin’s quivering lips as they gasped for air
to take to struggling lungs.

“ Mmmngh, guuhhh ,”

Pain shot up from the brunet’s groin and he choked in surprise, coming down
from his high, and he maneuvered glaring eyes to the demon above him. Amaimon
parted his lopsided smile, giving another squeeze to the younger’s testicles,

“It’s no  fun  if you come so soon, and you wouldn’t want to ruin your
brother’s playtime, no?”

Rin’s heated retort was stopped short when the other demon smothered his mouth
again, settling for cursing at him in his head,  Why the fuck would I even want
to play with you? Bastard demon.  Ignoring the voice that reminded him of his
own relation to hell, the boy then sunk his canines into the flexing flesh
covering his mouth, earning the tang of blood and a sickening moan from his
brother.

“ Nngh, Rin ,” Amaimon taunted breathlessly, smirk never faltering.

Rin growled threateningly, and heard rather than felt the fabric being torn
from his thighs, until another cool wind swept over his hardened member and
made his breath hitch. Amaimon ran his palms over Rin’s inner thighs almost
lovingly, a mockery of affection as nimble fingers caressed reddened and
boyishly smooth skin. Both could feel saliva sliding from their lips, caked at
their jawlines while sloppy kisses broke and crashed back together, like white
caps against the shore.

Between being disgusted and curious, Rin felt his blood pressure spike,
shamefully aroused by the situation’s vulgarity.  Why, why, why would Amaimon
choose to do this above all things, where is the motive, the reward?  Questions
that couldn’t be answered with anything but  Because he’s the spawn of Satan
 surfaced and resurfaced in Rin’s head while he tried to distract himself from
enjoying the warm lips molding to his, or-- “ Haah !”-- the hands tracing
soothing circles up and down his legs.

Amaimon moved away from Rin’s mouth, wiping away the wetness around his lips
with a wrist before ducking down on the younger’s torso, nipping random patches
of skin. The brunet pulled his numb arms away from the other’s back, folding
them over his forehead while enduring Amaimon’s inflictions. The older trailed
paths with his tongue before finding a place to sink his teeth into, acting as
a trigger to the moans coming from his brother.

Disgusting, disgusting, fucking demon , thin hands roamed across his body,  I
can’t become like this , and what felt like thousands of fingers pressed
against the perfect spots,  I won’t bend, I won’t break--  his back arched
higher,  Shit .

“ Ohhh, nnnghh,--aahh--”  there was no way he’d say his name,  Disgusting,
disgusting,  when teeth marked his body, claimed,  I’m so disgusting , eyes
raked hungrily over his form,  Fuck--I can’t let hi--  fingerpads circled his
entrance,  Oh God .

“N-nahhh, st-st-sto-pahhhh,”  electric sparks shot through his system as he was
penetrated by the hand of the devil, slender digits working at him.  Gonna kill
him and his damned father,  Rin grit his teeth.

“ Hahh, y-yeahhhh, nngh ,” shamefull pleasure wracked his form,  N o one
defiles me like this , falling into sin with a demon,  I’m a fucking exorcist,
 though he didn’t try to stop Amaimon when he looped the younger’s knees over
his shoulders.

“Aww, is this your first time?” Rin was shattered from his reverie, his face
relaxing when he realized how harshly he’d been grimacing. His ice blue eyes
met Amaimon’s, and the older pouted as if in sympathy.

“Helping my little bro grow up, how touching.”

Rin glared, “Fuck you,  bastard .”

Amaimon only grinned wider, which made Rin realize his mistake too late,
because in that moment, the other had sheathed himself completely within Rin. A
scream ripped through the air, and searing pain ran down Rin’s spine, and the
brunet distracted himself from tears by wondering how he’d missed his brother
undressing. His blue eyes blinked through unshed tears, discovering that
Amaimon had only bothered to tug down his zipper to release himself before
plunging into him.

The younger grit his teeth, pricking his lower lip accidentally, causing blood
drops to blossom while Amaimon began thrusting inside of him at an uneven
rhythm.

“ Mmmmngh ,” the green eyed demon groaned blissfully, not bothering to even
look at Rin as he carelessly abused his body.

Despite the soreness below his waist, the brunet felt his erection stiffen even
further rather than shrinking, and groaned as it rubbed against the rough
fabric of Amaimon’s vest as he continued pivoting his hips. Just as he began to
adapt to the rough pace, intense pleasure suddenly stole his conscious once
more, submerging his mind and sight in silent white-flash daze.

“ Mnn, aaahaaahhh, yee-ahhhh ,” Rin croaked, throat running hoarse, much to the
delight of his brother.

The feeling vanished, and in a desperate attempt to get it back, the boy
started bucking into his brother’s thrusts, meeting his thighs more harshly and
causing Amaimon’s hardness to press further inside him. Encouraged further by
Rin’s actions, Amaimon chuckled and increased his pace, panting slightly and
shutting his eyes to block sweat.

“That, my boy, is called the  prostate ,” Amaimon laughed breathlessly, “I know
how you always like to skip class, wouldn’t surprise me if you don’t know
anatomy, but that’s why big broth--” the demon’s cheery voice was cut off by a
weak slap to his cheek.

Rin panted below him, still glaring though noticeably more desperate, “ Nnngh ,
shut the hell up and  fuck  me, douchebag.”

Amaimon’s eyes slitted, and he complied eagerly, slamming into Rin with
unnatural force. Blue eyes widened then clenched shut again, and as if he
wasn’t sure what to do with his jaw, he went between clenching his teeth and
opening wide for loud moans, body convulsing in pleasure. He caught a glimpse
of his brother above him, eyes clenched, wet lips ajar in a soundless gasp,
hair mussed and skin glistening wet, looking all together much too beautiful
for a demon.

“ Haaagh, A--ahhh-maaaii--mahhhnnn ,” Rin moaned blissfully, letting his mind
slip back into pools of ecstasy, pain forgotten as he finally reached climax.
Heat surged through his body in the surprisingly sweet afterglow, and only
after a few moments of a dazed bliss did he realize that the sparks in his
vision were from the ghastly cerulean flames rising in wisps from his body.

Awareness of a warm, sticky liquid trailing down his thighs reached him, and he
glanced at Amaimon who had already lifted himself from the ground. His
charismatic grin and lazy gaze met Rin’s tired expression, and only the soft
whisper of blue barely clinging to the other’s visible skin betrayed his
indifferent stance.

“I had a nice time playing with you, little buddy, but big bro’s got things to
do so I’ll come back for some more fun later, ‘kay?” Amaimon’s voice rumbled,
husky as the scent of sex and sweat that clung to the both of them.

“Tch, go to hell,” and a halfhearted glare were all Rin could manage before his
brother smiled with his canines and disappeared with, “Oh, that’s where I plan
to go, but don’t forget that it’s  your  home, too.”

Like fuck it is , the brunet thought, grumbling to himself while trying to wipe
away the come from his stomach and thighs, uncomfortably between awareness and
afterglow.

He only glanced once at his ruined clothes,  Fucking demon.
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