Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/9297035.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Ao_no_Exorcist_|_Blue_Exorcist
  Relationship:
      Okumura_Rin/Okumura_Yukio
  Character:
      Okumura_Rin, Okumura_Yukio
  Additional Tags:
      Twincest, Fluff, Biting, Blow_Jobs, Handcuffs, Crossdressing
  Stats:
      Published: 2017-01-12 Words: 2188
****** Welcome Home, Master ******
by Mikkou
Summary
     After a long work trip, Rin welcomes his brother home with an
     unforgettable surprise.
Notes
     H-Hello! This is my first ever attempt at fanfiction so please go
     easy on me. *laughs nervously*
See the end of the work for more notes
Not for the first time that evening, Rin thought he heard the front door open.
He tensed up, expecting Yukio to walk in on his own surprise. That was the last
thing Rin needed. He wanted this to be the best surprise ever. Something that
would make Yukio realise he could never leave Rin for a two week mission in
Kyoto ever again. The separation had been unbearable for Rin, even with Kuro
and his friends from cram school to keep him company. Maybe it was time for him
to face up to his attachment issues.
He could hardly contain his excitement when he heard the door creak open,
muffled footsteps that he recognised at once. Perfect timing, he thought with a
grin, following the footsteps to the bedroom. Yukio stood with his back to him,
setting his bags down, but Rin wasted no time tackling him in a hug. His tail
weaved protectively around Yukio's leg. "Nice to see you too," Yukio chuckled,
petting his hair.
"Heh." Rin detached himself, his cheeks growing warm under Yukio's gaze. "How
was the mission? I want to hear all about it." Actually, what Rin wanted was to
kiss Yukio all over his face, starting with the moles on his cheek. He was
about to, when Yukio brushed something out of his hair with a bemused smile.
"Why do you have a petal in your hair?"
Rin's blush deepened. "Oh, um, it's part of your surprise," he explained. He
reached for Yukio's hand, melting at the familiar warmth. "Close your eyes," he
demanded, waiting for Yukio to shut them before guiding him through the
dormitory. He came to a halt outside the bathroom, pushing the door with his
free hand. "Okay, you can open them now."
Yukio stared in amazement at the bath brimming with bubbles and rose petals.
Flickering candles were dotted around the tub, casting a warm glow throughout
the room. Rin knew he had probably gone overboard with the romantic crap, but
at least he tried. "What's this for?" Yukio asked, smiling uncertainly.
Rin shrugged. "Been a while since we took a bath together." He tugged his t-
shirt over his head, then fumbled to unzip his pants. He stopped when he
noticed Yukio wasn't moving. "You just gonna stand th—hah!" Yukio enclosed his
arms around him, his hands tracing down his chest and over his crotch. Needless
to say, Rin had an instant hard-on. "Yukio!" he whined, his tail twitching as
Yukio stroked him through his boxers. To his relief, Yukio released him without
complaint. "Sorry. You're just so cute when you're embarrassed," he remarked,
unbuttoning his own shirt.
"What?" Rin growled. "I'm not embarrassed!" When he was out of his boxers, he
climbed into the bathtub, sinking down until he was up to his shoulders in
bubbles. Yukio was quick to join him, sighing as he submerged himself in the
hot water. Crimson petals floated and swirled on the surface, mesmerising Rin
until he realised he was being stared at again. "What?"
Yukio made space between his legs for his petite twin. "Come sit over here."
Rin shuffled over, yelping when Yukio's arms wrapped around his waist. He tried
not to squirm as Yukio caressed his hips, but they were really sensitive. His
breath hitched, heat creeping across his cheeks. "Does that feel good, Nii-
san?" Yukio murmured. Rin said nothing, afraid of making an embarrassing sound
if he opened his mouth.
"What about this?" Yukio asked in a whisper, trailing kisses down Rin's burning
neck. Each kiss made him mewl like a helpless kitten, his arousal heightening
when Yukio started peppering his skin with gentle bites. "Yukio," he
gasped, desperate to feel Yukio's lips on his own. "P-Please kiss me, please."
"Hm?" Yukio looked up innocently. "But I am kissing you, Nii-san."
Rin made a noise of frustration, cupping Yukio's face and crushing their lips
together in a rough kiss. Water sloshed around them as he pushed himself
against Yukio, sucking his tongue fervently. He tasted faintly of cherries,
probably from drinking soda on the train ride home. When they pulled apart,
Yukio looked stunned, his face flushed from the abrupt kiss. "You're cute when
you're embarrassed," Rin mimicked, receiving a playful splash. He splashed
back, catching Yukio's wrists before he could retaliate and pulling him into
another kiss. He bit down on Yukio's lip, eliciting a muffled moan. Oh, he
liked that sound a lot...
Bzzzt. Bzzzt.
The sudden noise startled Rin, his razor-sharp teeth slicing through Yukio's
lip. "A-Ah!" Yukio winced, pressing a hand over the stream of blood. A metallic
taste lingered in Rin's mouth as he stammered an apology, drowned out by the
persistent buzzing.
Bzzzt! Bzzzt!
Yukio retrieved his phone from the pile of clothes. "H-Hello? Okumura
speaking." He wiped his bloody mouth with the back of his hand. "Oh. Hello,
Shura." He looked like he would rather be talking to Satan himself. "What?
Well, no, I haven't started the mission report. I just got back. Y-Yes, I'll
have it done by tomorrow. Understood." He looked distracted when he hung up.
Like Rin wasn't even there.
"Ne," Rin tried, but Yukio was completely zoned out. "Yukio, look at me," he
huffed, raising his hands to Yukio's shoulders. He rubbed in gentle circles in
an effort to soothe him. "You know, it won't kill you to forget about work once
in a while."
When he was convinced Yukio was no longer stressed the hell out, he dropped a
kiss on his shoulder and stood up, covering himself with a towel. "I'm gonna
get the second part of your surprise ready," he announced.
"Second part?" Yukio repeated, brightening up a little.
"Yup." Rin smiled mischievously. "Aren't you a lucky boy?"
                                       ~
As far as surprises go, this one was fairly predictable. What better way to
follow up a relaxing bath than with a nice meal? But as it turned out, there
was more to tonight's dinner than Yukio thought. Nothing could have prepared
him for what was waiting in the kitchen.
"W-Welcome home, master," Rin mumbled.
Yukio's mouth fell open at Rin's black and white maid dress, the lace cuffs
adorning his delicate wrists and milk-white skin peeping from the top of his
stockings. "A-Ah..." Was he drooling? Yukio hoped he wasn't drooling.
Rin shifted from one foot to the other, his tail swaying shyly behind him. "Do
I look weird?" he asked quietly.
"Weird?" Yukio pushed up his glasses to hide his own reddening face. "No, no,
not at all. You definitely don't look weird," he insisted. "You, um, you look
really cute." Cute was an understatement. He looked downright adorable, the
outfit complimenting his feminine figure in all the right places. He decided to
keep that comment to himself, though.
Rin looked relieved. "Are you hungry, master?" He served up a generous helping
of spaghetti and meatballs, then planted himself in Yukio's lap. He lifted a
forkful of spaghetti to Yukio's mouth with an endearing "ahhh". Yukio played
along, taking the fork in his mouth. "You like it?" Rin smiled hopefully. Yukio
hummed appreciatively, opening his mouth for more.
When the plate was empty, Rin dabbed at the tomato sauce streaking Yukio's face
and licked his fingertips. "So messy," he scolded, tilting his head to the side
and licking the corner of Yukio's mouth. As much as he had missed Rin's
affection, Yukio was too dazed to even react. The crossdressing thing was a lot
to take in. Rin tried nuzzling under his chin. "What's wrong, master? Are you
tired?"
Yukio opened his mouth, but no words came out.
"I couldn't sleep without you, master," Rin murmured, his mouth inches away
from Yukio's. "I missed having your hands all over me at night..."
Yukio swallowed, lowering his gaze awkwardly. Rin's skirt was hitched up just
enough to reveal a glimpse of underwear. Yukio's underwear. When he looked back
up, Rin's eyes were burning brighter than his flames ever could.
He didn't know how it happened, but one minute Yukio was staring at his twin,
and the next he was pinning him down on his bed in a heated kiss.
"Mmm!" Rin arched his hips, purring as Yukio brushed his hands over his thighs.
He pouted when Yukio broke the kiss. "M-Master, please touch me more," he
begged in a breathless voice. "It feels so good when you touch me."
Yukio couldn't remember ever being this turned on in his life. He was
definitely going to give Rin whatever he asked for. His hands wandered over
Rin's thighs, tracing the soft skin until...
Bzzzt.
Damn it. Yukio was sure he had turned it off. He sighed, reaching for his phone
from the nightstand. "Yes?" he answered, avoiding Rin's glare.
"Yer start the report yet?" Shura drawled. Yukio was about to ask if she had
nothing better to do than bother him, when Rin snatched the phone from his
hands.
"Yukio's busy," he snapped into the receiver, hanging up with a huff.
Yukio stared at him in shock. "Nii-san! You can't just—"
He fell against the mattress before he could finish. There was a flash of
silver, a faint click...and the next thing he knew, Yukio was cuffed to the
bed. He instinctively yanked his wrists, gritting his teeth when cold metal
scraped against his skin. "Nii-san!" he protested. "Is this really necessary?"
He knew Rin was into some weird shit, but handcuffs were a first. Besides,
Yukio always assumed their roles would be reversed.
"Oh, it's necessary," Rin whispered, licking the tip of Yukio's ear. "I want
you all to myself, master." His words gave Yukio chills, especially with the
licking going on at the same time. He bit his lip to suppress a groan. Rin, on
the other hand, was unreserved, gasping and moaning softly into Yukio's ear in
between licks. The lewd sounds were enough to make Yukio's underwear damp with
precome. "You like that, don't you, master?" Rin noticed, swirling his tongue
over the inside of Yukio's ear. "Or maybe you want me to lick somewhere else?"
He really is a demon, Yukio thought, closing his eyes as Rin moved down to his
neck. He teased his tongue across Yukio's throat before biting down
unexpectedly, piercing the skin with his pointed canines. Yukio cursed, a warm
trickle of blood spilling down his neck. Rin cleaned it up with his tongue,
gasping in delight when he swallowed. "You taste so good, master," he mewled,
feverish with excitement.
"Nii-san..." 
Rin ignored him, continuing to attack Yukio's neck like a starved vampire and
staining his mouth red in the most disturbing and erotic way. Meanwhile his
hands grazed over Yukio's hard-on. "Someone's excited," he teased, tugging
Yukio's boxers off. He smirked, dipping his head to lick the smear of precome
across the head. Yukio shivered, his member twitching as Rin licked up and
down.
Yukio moved to push Rin's head down, forgetting about the restraints and
scraping his skin. Rin raised his head at the harsh sound. "Be patient,
master," he chided. He gave Yukio one final lick, then enclosed his lips around
his shaft. He moved slowly, taking it in as far as possible before sliding off
with a pop! He repeated the act, this time slurping vigorously and evoking
stuttered moans from his twin. Yukio clenched his fists, nails digging into his
palms painfully. He was starting to feel lightheaded from the pleasure. Or
maybe it was the blood loss.
"M-mm!" Rin moaned. The vibrations from his muffled cries sent Yukio over the
edge, a stream of come shooting into Rin's mouth. He swallowed as much as he
could before jerking his head to the side, coughing as the rest of the fluid
hit his cheek. He wiped it away absently, grinning at his dishevelled twin.
"Did you like that, master?"
Still catching his breath, Yukio managed a weak nod. He was somewhat relieved
when Rin released him from the handcuffs. He sat up, examining the gashes
on his wrists. He dreaded to think what his neck looked like.
"I know we just had a bath, but I'm gonna take a shower," Rin sighed. He stood
up to leave when Yukio caught his arm, reaching for his phone with the other.
Ignoring the missed calls, he opened the camera and snapped a photo. How many
times would he ever get to see his lovely brother, dressed in a maid outfit,
with blood and come sticking to his face?
Rin scowled at the picture. "I'm gonna bite your dick off if you show that to
anyone, four eyes," he muttered.
"Is that any way to talk to your master?" Yukio mocked, dodging to avoid a
flick on the forehead. He pressed Rin against the wall and kissed the bridge of
his nose. He would save his lips for the shower. "I love you," he said, kissing
below his ear. He didn't say it often, but he meant it when he did.
Rin nuzzled his cheek. "I love you too." He smiled playfully, revealing his
bloody fangs. "And I'll love you even more once you help me out of this damn
dress."
End Notes
     What do you think? I would love to write more Okumuracest but would
     anyone read it?
     Oh, and here is your reward for reading to the end! http://
     i.imgur.com/cuDlye5.jpg
Please drop_by_the_archive_and_comment to let the author know if you enjoyed
their work!