Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/5509085.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      刀剣乱舞_|_Touken_Ranbu
  Relationship:
      Kashuu_Kiyomitsu/Yamatonokami_Yasusada
  Character:
      Kashuu_Kiyomitsu, Yamatonokami_Yasusada
  Additional Tags:
      Underage_Sex, Age_Difference, Dubious_Consent, Alternate_Universe_-_Age
      Changes, Porn_Without_Plot, Shota
  Stats:
      Published: 2015-12-23 Words: 3569
****** itadakimasu ******
by Sammee
Summary
     Little Kashuu looked good enough to eat, and maybe this time,
     Yasusada would indulge.
     Yasusada and shota!Kashuu porn.
Notes
     For a very special lady. Good work and Merry Christmas~
Kashuu was sleeping with his yukata wide open again. It didn't seem to matter
how many times Yasusada teased him about it and told him to cover up, the
garment always managed to fall off Kashuu's slender shoulders in the night, as
if his soft skin was allergic to the cloth. And yet, that was hardly the only
problem with Kashuu's sleeping habits. He was restless, often tossing and
turning in the night, and he constantly kicked off the covers no matter what
temperature it was in the evening.
On midwinter nights, this meant that Kashuu was often left shivering with his
skin bared to the cold. Instead of pulling his covers back up over him and
coiling in them, however, he found his way across the floor and into Yasusada's
very own futon.
Tonight was one such night. The feeling of the boy pressed against his back had
been enough to stir Yasusada from his sleep.
"Kiyomitsu," he sighed. As if responding to his voice, Kashuu stirred. But
instead of waking or moving back to his own bed, he only snuggled closer,
lifting a leg press it against Yasusada's warm ones. The movement sent a shock
down Yasusada's spine, one that only crept lower when he looked down at the
limb. He reached down to grab it, so he could pull it off of him, but stopped
once his fingers pressed into a silky thigh.
Kashuu was still complete unaware, only shuffling slightly from the touch.
Yasusada moved his fingers higher, up the inside of his thigh, until his thumb
was pressed right against the edge of his briefs. Still nothing. He lifted
Kashuu's leg slightly and rolled over in his futon to face the young boy.
"I've told you a hundred times," Yasusada murmured quietly. Looking at that
innocent face, despite his naughty actions, a wicked idea sprung to Yasusada's
head. It wasn't as though he'd never thought about it before. How could he not,
when Kashuu was practically crawling into his bed whenever it was cold? But
never had Kashuu looked so appealing, so touchable before now. His delicate
face was scrunched up, flinching from whatever dream he was having, mouth
caught in an adorable frown.
Yasusada dipped forward to kiss it on impulse. Kashuu still did not wake from
the feather-soft touch, though his nose crinkled in his sleep. It was very
cute. His eyes roamed over Kashuu's form, his smooth chest was bared, yukata
barely held together by the pure stubbornness of the obi's knot. It hung off
him, and the bottom splayed open so widely Yasusada could nearly see his
underwear.
"I think you deserve a little punishment..." he said under his breath. A hand
slid up Kashuu's leg, moving around the back and pushing the edges of his
yukata even further apart. He rolled Kashuu onto his back, drawn to the
hardened peaks on his chest—a symptom of the cold air. It wouldn't be a
punishment if he didn't have a taste of them, Yasusada told himself as he
lowered himself over Kashuu, long hair brushing against the flat stomach. His
tongue shot out and greedily lapped at those pink nipples. That made Kashuu
react, inhaling sharply as Yasusada's tongue swirled around one, before he took
the delicious bit of flesh into his mouth and sucked.
Finally, the boy began to wake from the sensations, eyelashes fluttering as he
groaned. Yasusada took that moment to push one hand past the waistband on
Kashuu's shorts and curl it around his cock. Red eyes flied open in surprise as
Kashuu gasped. Being pulled from his dreams so suddenly meant that he took few
seconds to truly react, seconds that Yasusada used to the fullest. A long lick
up the center of Kashuu's chest and a quick rub of his little dick, before
Kashuu was crying out, "Y-Yasu-onii-chan! W-what are you...!" The outraged
voice faltered, melding into a low moan as Yasusada continued to fondle him.
"Haha, don't worry about it, Kiyomitsu." He swung his knee over Kashuu's body,
to make sure he wouldn't be able to crawl away. Luckily, Kashuu was too
distracted to even try. "It feels good, doesn't it?"
Kashuu's face filled with a red flush as he looked down his chest at Yasusada
straddling his legs. Once he'd gathered enough thoughts in his head for a
response, his quiet voice came, hesitant and wavering. "I... I guess."
Yasusada smirked at the answer. "Good boy," he said approvingly and pulled his
hand out of Kashuu's shorts. He drew himself further down the boy's body, until
his face was next to his now hardened cock, which made a little bulge in the
fabric. "I'll give you a reward for being so honest." Yasusada pushed his
fingers underneath the waistband and tugged, exposing his erection to the air.
Kashuu blushed even harder. He tried to cover himself, but Yasusada caught his
wrists without much trouble, and pinned them to the futon. When Kashuu started
to struggle against him, Yasusada ended that with a simple swirl of his tongue
around his young cock.
All the air went out of Kashuu's lungs in a big breath. His eyes widened as
Yasusada opened his mouth and took Kashuu into the warm, wet cavern. He was
still so young and small, enough for Yasusada to envelop the whole of his cock
with ease. A sob broke free from Kashuu almost instantly in response. His
hands, once fighting, sunk into the covers of the futon, his hips bucking
upward.
Yasusada felt incredibly pleased with his reaction. Sucking hard, he bobbed his
mouth up and down, enjoying the salty taste of Kashuu's precum as his hands
settled just under the curve of his ass. Even if Kashuu was still caught up in
his uncertainty, his little dick responded to the stimulation with enthusiasm.
Yasusada gulped down every bit of its dribbling precome.
"Yasu...onii-chan..." Kashuu breathed. His chest was heaving, fingers twisting
in Yasusada's long hair. Instead of trying to push his head away like Yasusada
expected of him, they were pulling him closer, wordlessly begging for him to
keep going. "S-stop..."
Yasusada let out a laugh at the conflicting signals that Kashuu was giving him,
but with his mouth full, it came out as a reverberating hum. Those slender hips
trembled in Yasusada's grip. He cast a quick glance upward, but Kashuu wasn't
looking at him anymore. His eyes were squeezed tight, teeth clenched as he
whined.
The noises began to increase when Yasusada roughly groped at Kashuu's ass. He
turned his head side to side slowly, letting the crown of Kashuu's cock rub the
inside of his cheeks as he wagged his tongue back and forth. Almost without
warning, Kashuu 's fingers tugged hard at Yasusada's hair, and he bucked into
Yasusada's mouth. Once, twice, and then-- Kashuu went lax, sobbing again, and
Yasusada could feel the splash of tangy semen on his tongue. Yasusada held it
in his mouth and drew back, pulling apart Kashuu's legs.
Kashuu made a sound of protest, but his orgasm had made him weak. He could only
uselessly wiggle his hips as Yasusada spread his cheeks wide to reveal the pink
bud of his asshole. Yasusada opened his mouth over it, letting the mixture of
saliva and cum coat the puckered opening and pressed his fingers against it.
As soon as Kashuu felt that touch, he objected loudly, distress clear in his
voice, "N-no! Don't touch my butt!" Before Yasusada could ask why he'd gotten
so worked up all of a sudden, Kashuu stared at him tearfully and insisted,
"It's... dirty... and gross."
Yasusada thought it was ridiculous that Kashuu could believe such a thing.
Something like this wasn't gross, it was exciting, it was sexy.His heart
pounded and his dick throbbed when he thought about entering Kashuu's virginal
hole. But he wouldn't tell Kashuu that. After all, this was his punishment for
being such a delicious tease for so long. "It really is incredibly dirty down
here... Can you imagine if anyone else saw this place?" Yasusada pushed his
fingertips inside, inwardly marveling in how tight he was. He pushed further,
until Kashuu was fully speared on two fingers.
"Ah!" Kashuu's tears glistened in his eyes, either from the discomfort or
Yasusada's teasing words. "Then stop it..."
"Oh? Don't you want me to clean it up for you?" Yasusada wiggled his fingers as
best he could, and Kashuu's body lurched forward. He smiled.
Kashuu was looking at him with a cute pout, skepticism written on his face.
"Is... that what you're going to do?"
"Of course," Yasusada told him easily. "I'll just use my fingers. They're a lot
longer than yours, so I'll be able to go in deep, to the places you can't
usually reach."
Kashuu was sweet, yet gullible (or perhaps, that's part of what makes him so
sweet in the first place). His pout shifted into a frown, and then carefully,
he nodded his head. "If that's all you're doing..."
"Yes, of course," Yasusada said. He was sure that Kashuu had never been touched
so intimately before, but he still responded to it it was what he was made for.
Each twist of Yasusada's fingers made him suck in a breath, and squeeze down
around him. Not trying to push out the intrusion, but pull it closer, deeper.
Little slut, he thought with a grin.
 "Feels weird..." Kashuu murmured, watching him with wide eyes. What a liar.
His little dick was already twitching, trying it's damnedest to will itself
into hardness because Yasusada exploring his ass felt   good  , not weird. But
Kashuu's shyness was only another point that excited Yasusada when he thought
of taking him. His own cock was harder than wrought iron, aching at being so
close to his fleeting fantasies. He slid in another finger, before he thought
that Kashuu could be ready for it, but his hole eagerly swallowed it, even as a
soft whine poured from the boy's throat.
He didn't want to wait one second longer, but Yasusada told himself it would be
better if Kashuu was fully prepared. Even if the thought of pushing into that
small hole until it gave way, of watching Kashuu's blood and his cum drip from
his ass as he piteously cried was fucking hot, hurting him that much outside of
his fantasies was a no-no. So he was patient. Yasusada stroked Kashuu's
insides, easing them into relaxation, enough to thrust three fingers in and out
at a regular pace.
Kashuu had finally given into sensation, pressing down into it as Yasusada
prepared him. It was good now, wasn't it? Yasusada was almost sure. He removed
his fingers, enjoying the cute look of disgruntlement Kashuu gave him because
he was stopping. Kashuu didn't have anything to worry about there—Yasusada was
ready to give him exactly what he wanted, until he was weeping with pleasure.
He could already picture it in his mind.
Yasusada drew back, stationing himself firmly between Kashuu's knees. As if the
rest of what he'd done hadn't been embarrassing, Kashuu looked mortified. "W-
what are you going to do now? Isn't it... clean enough?" Yasusada clicked his
tongue and rubbed the head of his cock against Kashuu's loosened hole. "Yasu-
onii-chan!" the boy immediately yelped and pushed a hand between them.
"Of course it isn't clean yet," Yasusada scoffed. "My fingers won't be
enough... so I'll have to stick this in after all." Yasusada pulled Kashuu's
hand away from his ass and pressed it against his hard, thick cock. Kashuu grew
even redder as Yasusada wrapped the small hand around him. His cock was
throbbing now, so intensely that Kashuu must have been able to feel his pulse
through it. "It's big, isn't it? It'll be great for cleaning that dirty hole of
yours." Yasusada saw the way Kashuu flinched at those words, and suppressed his
smirk. "But, Kiyomitsu... I'm doing you a big favor, you know?"
"H-huh?" Kashuu looked surprised at those words, and seemed to shrink even
smaller.
"If you really want me to do it," Yasusada said, "the least you could do is ask
me nicely..."
Kashuu's barely protruding Adam's apple bobbed as he gulped. He chewed on his
bottom lip, which only made Yasusada want to lean over and do the same. Sooner
rather than later—thankfully for the both of them, Yasusada wasn't sure that he
could hold himself back much longer—Kashuu gave in. "Please..." came his voice,
timid, yet earnest, "clean me up inside..."
Yasusada felt his mouth go dry. He licked at his palate in vain to solve the
problem, but the only thing that could make him salivate was right in front of
him. Kashuu's lithe form, opened wide for him. "Don't worry..." Yasusada tried
to reassure him, but the words were ragged with harsh breaths. "You're in good
hands."
This time when Yasusada pressed the head of his cock against Kashuu's hole, he
shut his eyes and turned his head to the side. A little scared, but prepared
for it. Waiting. For Yasusada to penetrate him. That was too much for him to
stand. Kashuu was so thin and tight, but Yasusada's fingers clamped down on
those frail hips, holding him in place as he thrust hard, burying the brunt of
himself inside the boy.
Kashuu was so shocked he couldn't make more than a broken gasp. Yasusada felt
so good that he couldn't think of anything else but the warm flesh of Kashuu's
ass—squeezing him tightly, massaging his cock in rippling contractions that
urged his hips forward and back, inches at a time.
"Y-Yasu-onii-chan!" Kashuu finally squealed when Yasusada began moving, really
moving, pounding that hole with reckless abandon. He could see the tears in
those ruby eyes, but it was a relief to see that they were only watering.
Kashuu wasn't actually crying, or sobbing in agony—and that meant Yasusada was
doing a good job reigning himself in.
"You're doing great, Kiyomitsu," Yasusada huffed, slowing his rhythm down so
the boy could catch his breath. Kashuu clutched Yasusada's sleeves, and he
whimpered as the hard length in his ass slid further inside. "So great taking
my cock."
Kiyomitsu looked at him pleadingly. To stop? Yasusada couldn't now, even if he
wanted to (he didn't)—but then, he spotted the swollen erection hovering
between them. It was already fully stiff and aching after a few rough thrusts,
drooling messily with clear fluid.
"You're really feeling good, aren't you?" Yasusada teased. Kashuu refused to
answer the question, only letting out a moan when he gripped it in his fingers.
Yasusada echoed the noise the second he did so, as Kashuu's ass quivered around
him, beckoning his hips forward and his cock deeper.
How could Yasusada not oblige him? Dropping both hands to firmly hold him in
place, Yasusada rolled over onto his back, bringing Kashuu on top of him.
Kashuu's weight, though slight, only drove him further onto his cock, until
Yasusada was fully penetrating him, as deeply as he could go.
Yasusada's mind went blank. Being caught in that blistering warmth, so
unbelievably tight, surrounding every centimeter of him was incredible. When
his eyes came back into focus, Kashuu's body was tightly wound, chest taking
small and quick breaths. The tears that had been filling his eyes now spilled
down his cheeks, but even with such an expression on his face, Kashuu didn't
try to move, or pull himself free. A sliver of spit dripped down his chin, and
when Yasusada's gaze lowered, he saw something that nearly made him break out
into a grin: Kashuu's cock, twitching as it oozed rivets of thick, white cum
down its length.
The reaction was so unbelievable, so perfect that Yasusada had to question his
earlier assessment of Kashuu as a virgin. Maybe Kashuu had previously been
trained by someone... or maybe he was just born with a slutty body literally
made for cock. It didn't matter which was the case, because Yasusada would
engrave himself so deeply inside Kashuu that no other man would be able to
compare.
"Let's see if I can make you come a third time," Yasusada chuckled airily.
Kashuu was still reeling from his second orgasm, but Yasusada needed to move,
right now. His fingers dug into Kashuu's ass, pulling apart his cheeks as he
raised him up slightly, onto his knees. Yasusada's heels pressed into the futon
as he shifted, and bucked his hips. The slap of skin and thrust was enough to
bring Kashuu out of his daze. But to Yasusada's surprise, he didn't look upset
or outraged at him. Instead, Kashuu's face was strangely calm, if dazed.
"Onii-chan..." Kashuu said, sounding unsure and secretive, like he was worried
about being scolded for it. "It.. feels really good."
That made Yasusada's whole body thrum, so much so that he forgot about saying a
single thing in response. What he did respond with was pure action, a sharp
squeeze of Kashuu's ass and then the quick, powerful pistoning of his hips.
Kashuu couldn't hold back his desperate whimpers and Yasusada was glad for it,
enjoying the honest noises in combination with skin smacking, fabric rustling.
The walls wouldn't muffle many sounds. If anyone strayed remotely near their
room, it would be more than obvious that Yasusada was fucking Kashuu, fucking
him hard, and that the boy was loving it. The thought only got Yasusada more
excited.
"Tell me how much you like it," he moaned, not faltering in his thrusts for a
second.
"A-a lot," Kashuu breathed out. He was licking at his lips, eyes half-lidded
with pleasure. "Yasu-onii-chan is... so big... and going in so deep. I don't
know, it just... it feels so good!"
If Kashuu said anything else, Yasusada was sure he would fuck the boy raw,
until he couldn't even get up in the morning. Yet, no matter how relentlessly
Yasusada pounded the boy, Kashuu's ass took the punishment. He wondered how red
and sore his little hole would be the next day, and if Kashuu would let him do
it all over again—or if he'd ask for it.
His eyes are fixed on the point between their bodies, where his cock delved
into Kashuu's hungry ass, in and out, over and over again. And with a grin, he
realized that Kashuu had gotten hard once more. How had Yasusada waited so long
to do this, with Kashuu rolling into his bed so many nights, practically
begging to be taken?
Yasusada could feel his own orgasm approach, the heavy pressure building in his
balls, aching to empty his load inside of Kashuu's oh-so-receptive hole. "I'm
going to fill it up," he growled low, more to himself than the boy, but he
didn't miss the way Kashuu swallowed in anticipation. Yasusada groaned. He held
Kashuu tighter in a bruising grip and pulled his body as close as he possibly
could. Sucking in a sobbing breath, Yasusada ground their hips together, the
waves of pleasure finally crashing down on him. The pressure in his dick was
unleashed and his hips jerked almost involuntarily as he pumped Kashuu's ass
full of cum. Yasusada sagged, catching his breath, his head spinning from the
sheer force of his release.
"Y-yasu-onii-chan," Kashuu whined, rocking against him as soon as he'd stopped
moving. The action was almost painful to his over-sensitive cock, but Kashuu's
slutty expression of need was enough to erase it. Yasusada took the boy's
erection into his hand once more and rubbed at the head, stroking him firmly.
Kashuu's hips shook, and he had to press his hands against Yasusada's chest to
hold himself steady. His third climax overtook him with an anguished moan, and
this time, only a thin stream of semen drizzled forth from the tired, twitching
head. Kashuu collapsed onto his chest afterward, panting hard and letting out
little whines of exertion.
Yasusada let his cock slowly soften inside Kashuu before pulling it free. To
his satisfaction, he didn't feel the immediate drip of his cum. He'd come so
deep inside that it would take a good few minutes for it to ooze out naturally.
Soon, Kashuu's breath leveled out and he turned his cute face up to look at
him. He was frowning, like he felt he'd been tricked. "Yasu-onii-chan... You
just made it dirtier."
Yasusada pressed his ensuing grin into a reassuring smile. "Nuh-uh. It feels
that way right now, but after you wash it out in the bath, you'll feel suuuper
clean down there!"
Kashuu looked suspicious, but tentatively trusting. "Really?" he asked, getting
to his knees.
"Yeah." Yasusada nodded, and pushed himself into a sitting position. "Come on,
I'll show you how to do it." After a moment to collect himself, he stood up and
took a moment to properly tie his yukata.
Kashuu tried to get up, but staggered before he could put both feet on the
floor. Yasusada chuckled as he watched, filled with a predatory delight at
fucking the boy so hard he couldn't even stand.
He leaned over and picked Kashuu up in his arms. Whether it was due to
exhaustion or soreness, Kashuu didn't bother struggling, and only gave one
flimsy yelp of protest. Yasusada didn't bother to fix the boy's disheveled,
semen-splashed yukata as he opened the door.
If he was lucky, they'd run into someone on the way to the bath.
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