
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/10583622.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      Other
  Fandom:
      Ao_no_Exorcist_|_Blue_Exorcist
  Relationship:
      Okumura_Rin/Giant_demon_monster
  Character:
      Okumura_Rin, Giant_demon_monster, Okumura_Yukio, Moriyama_Shiemi
  Additional Tags:
      This_is_fucking_disgusting, Seriously_read_at_your_own_risk, dubcon,
      monster_fucking, Knotting, Don't_Like_Don't_Read, Mpreg, demon_babies
  Stats:
      Published: 2017-04-10 Completed: 2017-05-23 Chapters: 5/5 Words: 2833
****** I'm so sorry everyone ******
by swamperation_ogreload
Summary
     Rin gets fucked by a huge monster that's it
Notes
     Holy shit I'm gonna get doxxed for this
See the end of the work for more notes
***** Chapter 1 *****
        Rin had definitely gotten in over his head this time. He looks over to
where his backpack holding his most important belongings was thrown across the
cave along with his sword, in hindsight this probably wasn't the best place to
spend the night seeing how there was a  giant fucking demon monster  living
there. Said monster currently had him backed into a corner and was sniffing up
his legs, it didn't seem hostile, just curious, but Rin would rather not be
around it all the same. This wasn't a problem he was prepared to face when
deciding to run away, money, food, and shelter, sure, but not the beast who was
nuzzling  him and  purring.
        “Heh, it seems like you've recognized me,” Rin laughs somewhat
hysterically and tries to scooch away. The monster pins down his legs with its
big claws and buries its face in his crotch, inhaling deeply. Rin stopped
breathing, there was  no way  this was happening. There was  no fucking way
this thing wanted to  mate  him. Not only had he stumbled upon a cave with a
horrific demon creature he stumbled upon a cave with a horrific demon creature
in heat. This was it, this was his punishment for running away.
        The beast stood up on its hind legs and Rin could see it's pulsing
dicks, plural. Two dicks. And each was decorated with ribs and knobs and oh
shit it was kinda hot. The thing watched him expectantly and fuck it, he took
his pants off because he was going to hell anyway. The thing bent down to sniff
down there and what followed was a shamelessly long lick from his ass to the
tip of his cock. Rin flung his head back and tried to stop his moan, this was
soooo wrong. But who knew what this thing would do if he tried to escape? That
was his excuse for staying as the monster licks him again, getting his hole
nice and wet for what would sure be a bumpy ride.
        It aligned its cock with Rin’s ass and rolled it's hips. The blunt tip
stretched him open painfully and he cried out, glad nobody could hear how high
pitched he got. Halfway in and he felt like he was about to burst, no person
was built to take something this big. It thrusts the rest in and Rin  howls.
He feels something inside him tear but his quickened healing begins in no time
so that when the beast is hilt deep all he feels is numbness and a pleasant
tingling. He wipes the tears from his eyes and laughs tiredly as the demon
licks his cheek. He's too exhausted to worry about the rows of razor sharp
teeth so close to him and he just pets it's head, thankful for it staying
still. In a few minutes after the healing took place he starts to squirm on the
big cock, not used to having something so big inside him. It was kinda  nice
being so full. He rocks back and let out a little mewl, the beast purrs and
rolls it's hips up getting a full out moan from its smaller partner. Rin never
knew how much he could love getting fucked in the ass by a demon with a dick
the width of a soda can but here he was. Before long he was bucking his hips
and holding onto the thing’s trunk like arms for support. He was at rock bottom
and nothing was going to stop from enjoying this to the fullest.
        His dick was fully erect and dripping precome and he could blow at any
moment. The beast suddenly seized up and Rin looked down to where the base was
engorging to a fat knot.
        “Wait, I don't think I can handle any-” he groaned when he felt the hot
fluid rush inside him, filling him up somehow even  more.  He came with a shout
and looked down where his come splattered his bloated belly. He lie there
panting along with the demon above him before bursting out in a fit of giggles,
“That's sure one for the records!” He patted the taut skin of his abdomen and
the monster nuzzled him there.
        They lay together on the floor for a few minutes before Rin was lifted
unceremoniously by the beast and awkwardly shuffled over to a bed of leaves
deeper in the cave where it lied down curled around Rin. The other demon was
just about to drift off on the monster’s knot when he felt something else
poking his ass. He looked down to where its second cock was growing erect.
        “Oh come  on.”
***** Hoooollly shit back at it again with that nasty shit *****
Chapter Notes
     Y'all asked for mpreg y'all gonna get it
See the end of the chapter for more notes
         Rin, against perhaps his better judgement, had decided to stay in the
cave. It was warm in there, especially curled up in the nest against the warm
body of the monster with all its thick fur, and he was never without food, the
demon brought back carcasses of woodland animals for him to eat and he hasn't
felt so healthy and fit since before he became a demon. He supposed that had
something to do with demons being carnivores and he hadn't been eating nearly
enough meat in favor of keeping up a human diet to seem normal. Well, he didn't
have to do that anymore now did he. Rin was surprisingly okay with his new
life, he didn't have to watch his every step with his powers or worry about the
Vatican deciding to kill him, he just ate and slept and explored the forest
around him.
        As time went on however, he began to grow more tired and slept more
than fifteen hours a day, he  felt  healthy but it was still worrying. One
morning about three weeks later after eating a leftover pheasant from
yesterday's hunt he got violently ill and rushed outside to puke in a bush. He
slumped back to the nest and climbed atop the creature, who he'd awakened.
         What wrong, mate?  Rin shrugged and buried his face is soft fur. He
had learned to communicate with the monster although it was a lot harder than
with previous demons due to its low contact with humans and general low
intelligence level.
         I just threw up, I think I must've gotten food poisoning. No more day
old meat for me.  It nuzzled his tummy comfortingly then went back to sleep
with Rin tucked under its arm. It would have been fine if it stopped there and
he wasn't losing his breakfast  every morning . There was seriously something
wrong.  Hey,  he prodded the creature awake,  I think I need to go to a doctor.
The beast growled and got up to block the entrance of the cave,
         Can't leave!  Rin frowned,
         I'm going to have to leave the cave eventually, I think something's
wrong with me
        Not safe! Can't leave!
        Come on,  he picked up his sword and tried to prod the beast out of the
way,  I'm the big bad son of Satan, I can take care of myself.
        You leave I go too.  This thing was as stubborn as he was.
         I can't take you out into the city, that would be a total disaster.
        Then no go,  it picks him up and brings him back to the nest and curls
around him,  Smell nice…  Rin sighs and sniffs himself,
         I really don't smell that great, we don't have soap or anything.  It
nuzzles his belly,
         Pups smell nice.
        What are you talking about I don't have-  Rin thinks back to all the
symptoms he's been having,
        “Oh shit.”
Chapter End Notes
     The dialog might get a little confusing but whatever it's not like
     I'm doing this for money
***** Chapter 3 *****
Chapter Notes
     Even shorter than usual but whatever
        After the initial shock and panic attack and him wanting these things
out of his body immediately  Rin calmed down and weighed his options. He could
get an abortion, but he doubted any doctor would know how to get rid of demon
fetuses, especially from a man, besides, he would have to leave the cave to do
that and the monster made it very clear that it was over it's dead body and Rin
had grown more than a little attached. So that was out of the question. The
other choice was to carry to term, if he even could. He didn't have to kill the
demon and just got to lay around in the nest all day, sounded pretty good
actually. These things would probably not even be able to survive in him
anyway. He only had to do this for a couple weeks. He could do this.
        Three months and four inches on his waist later and Rin was having a
hard time fitting into his clothes. The pups had taken hold and now that he was
past the first trimester, they weren't likely to let go. It was October and the
beast was stockpiling food for the winter which Rin was cooking and drying to
make last longer. He had perfected making campfires with his power and now
there was always a roaring blue fire in the middle of the cave. When November
came to pass, the beast ate double it's weight in meat and dragged Rin to the
nest to hibernate. Winter was unbearably lonely. The beast slept the whole time
leaving Rin with no one to talk to or even interact with, all he did was tend
the fire and keep the cave warm. The only eventful thing he did was trek out of
the forest to use what little money he had to buy clothes that fit and had room
to stretch for the rest of the pregnancy. In January Rin was scared half to
death when he felt a real  kick  and nearly woke up the beast. He tried to
guess how many were in there, he knew at least two based on the movements but
there could be five for all he knew, with the way his stomach was growing he
felt like he swallowed a watermelon with the density of a bowling ball.
        In another month the beast woke up and immediately crawled on top of
Rin to nuzzle and lick him, pawing gently at his bulging tummy,
         Mate so big! Pups soon!  Rin grinned and laughed, hugging the big
furry creature,
         I missed you! You slept for so long!  In truth, Rin was getting
comfortable with the idea of having kids, if you could even call them that, and
was even a bit excited to see his the babies he's been carrying around for
eight months. He wondered if they would look like him at all or if they would
just be miniature beasts. He was fine either way, both would be pretty cute.
His chest has been growing heavy with milk recently and he was eager to relieve
the pressure. It would only be another month.
***** Chapter 4 *****
Chapter Notes
     Y'all got your birthing scene
Rin woke up a month later with a splitting pain in his abdomen and immediately
knew what was happening,
        “Oh no, oh no, I'm  so  not ready for this.” The beast woke up from all
his fretting,
         What wrong mate?  He scratches the top of its head,
         It's the kids, they're gonna come and I'm  freaking  out!  It perks up
and scrambles to get a get a look at Rin,
         Pups! Pups coming!  Rin felt something leak out of him, soaking his
pants. Rin has only witnessed a pregnancy on TV but he assumed that was his
water breaking. He groaned, knowing he would have to wash that out later, and
took off his pants. The pups were kicking up a storm inside him, moving around
making him nauseous trying to get out. He tried pushing but nothing happened.
He tried for another two hours and then got worried.
         I-I don't think they're coming out!  He started to panic. He heard
rustling and talking outside and scrambled to get his pants back on, groaning
and crying all the way. He sees the beam of a flashlight coming down the tunnel
from the mouth of the cave,
        “Rin?!?” Oh shit. This was the absolute last person he wanted to see
right now.
        “Yukio?!? Wh-What are you doing here?” Yukio rushes to his brother's
side, stepping between him and the beast, pointing his gun at it,
        “Rin this is a hellhound, a very dangerous- wait are you  pregnant?”
Rin throws his head back and lets out another cry as his insides are jostled
once again but manages to nod. While Yukio is distracted the beast lunges.
         Wait! Don't hurt him that's my brother!  The beast hesitantly backs
off, still growling, and goes to sit in the corner. Rin turns back to Yukio,
“Yukio, you have to help me, they-they aren't coming out.” Yukio sighs and puts
his head in his hands for a second trying to process everything,
        “You don't have a vagina, Rin, you don't have the right muscles to push
them out. I'll have to do a c section.”
        “I don't care just get them out of me!” He burst into flames, unable to
take the pain anymore.
        “I have to go get my med kit and tell the class to stay outside, I'll
be right back.” He comes back with Shiemi who gasps when she sees Rin writhing
on the floor, “Shiemi, I'm going to need you to go get me some water to put in
this bowl,” he hands her a plain white bowl from his bag and she nods and
rushes out, wanting to do anything she could to help Rin. “Now Rin, I'm going
to give you some anesthetic, it's still going to hurt but the pain will be a
lot less.” Rin nods and winces when Yukio injects him and in a few moments he
can't feel his body anymore. Shiemi comes back with the water and Yukio gets
out his set of surgical supplies, choosing a scalpel and making a long incision
across Rin’s swollen belly. He cuts through carefully, having Shiemi dab away
blood with a wet sponge until he can see fur. Shiemi pulls the first bloody cub
out and it immediately starts squeaking. She cleans it off and wraps it in one
of Rin's shirts and goes to pick up the other to repeat the process. She inches
over to the beast and gives it its pups as Yukio stitches Rin closed.
                                      --
        Rin comes to a couple hours later and feels like shit. The beast
nuzzles him and pushes the pups over so Rin can hold them. He cradles the
babies and coos to them gently, not even noticing Yukio and the others standing
across the room. Yukio clears his throat and Rin looks up,
        “Thanks for that, bro.”
        “Rin, we've been looking everywhere for you.” Rin frowned, realizing he
was going to get A Talk. “You can't just run off and expect things to be fine!
See, you kidnapped by some demon and knocked up,” he raises his gun and points
it at the beast, “and now I have to clean up your mess again.”
***** Chapter 5 *****
Chapter Notes
See the end of the chapter for notes
        Rin narrowed his eyes, “You put that down or I'll burn your hands so
bad you won't be able to pick up a gun again.” Yukio faltered,
        “ Excuse me? ” Rin hugged his babies to his chest,
        “You've hated me ever since I presented as a demon and I bet you were
glad when I ran away and you didn't have to put up with me anymore. And  you
all, ” he points to the rest of the exwires, “we were friends for  months  and
I've saved your asses multiple times but as soon as you find out I'm half demon
everyone but Shiemi turns their backs on me,” Rin blinks away tears, “and now
I'm finally with somebody who knows who I am and accepts me and I don't  care
it's a fucking hellhound because I'm the most genuinely content with my life
I've been since the old man died and I'm allowed to be happy dammit!” Yukio
sighed and pinched the bridge of his nose,
        “Wait for me outside, everyone.” He kneeled down next to Rin once the
exwires left, “Are you sure about this, Rin?” Rin nods, resolute,
        “I feel like I belong here. And look! You're an uncle now.” Yukio
hesitantly petted one of the pup's heads,
        “Twins… just like us…”
                                      --
        The pups grew fast, in a few months they were playing and roughhousing
with each other. It had been a full year since he had originally stumbled upon
the cave and everything had changed. Rin laid with the beast in the nest,
feeling the steady in and out of its breathing and watching their offspring run
around. He was happy his old clothes fit again, Yukio had brought the rest of
his clothes soon after the pups arrived along with blankets, soap, and Kuro who
was overjoyed to have two new playmates. Yukio also brought Shiemi to visit
regularly. She loved the pups although they got fur all over her clothes. Rin
rounded up his little ones and brought them to the nest to go to bed. Overall,
he couldn't think of a better outcome.
Chapter End Notes
     I really couldn't find a good way to end this sorry
End Notes
     If you made it to the end I applaud you. There might be a sequel.
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