Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/864729.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Naruto
  Relationship:
      Uchiha_Itachi/Uchiha_Sasuke
  Character:
      Uchiha_Itachi, Uchiha_Sasuke
  Additional Tags:
      Shota, Shameless_Smut, Sibling_Incest, Oral_Sex, Hand_Jobs, First_Kiss,
      Brothers, Masturbation, Accidental_Voyeurism, Plot_What_Plot/Porn_Without
      Plot, PWP, Male_Slash, Cuddling_&_Snuggling, Pajamas_&_Sleepwear, Yaoi
  Stats:
      Published: 2013-07-01 Words: 5305
****** Aniki Knows Best ******
by orphan_account
Summary
     Little Sasuke doesn't know what he's in for when he comes pattering
     to his Aniki's room in the middle of the night...
Wide, deep grey eyes, an adoring grin, lightly tussled black spikes, and a
beautiful, melodic voice moaning such dirty, dirty things…
Itachi groaned, leaning against the wall for support, his fist a blur over his
pre-cum streaked cock. Moans fell from his mouth unhindered as he imagined
those pouty, full, pink lips wrapped around him, sucking as though he was the
tastiest treat in the world. His cock twitched at the thought and his pace over
his arousal increased, drawing yet another deep moan from the back of his
throat. His hips bucked desperately as his stomach coiled, the heat nearly
overwhelming.
“S-Sasuke…” he gasped, biting at his lip to try and keep his moans at bay. The
object of his desires lay only one room away, sleeping soundly, completely
unaware of his brother’s perverse fantasy. He probably looked so innocent, so
beautiful, his eyelashes tickling his cheeks as he cuddled underneath his
covers.
Itachi had to cover his mouth as he nearly screamed. His balls drew close to
his body and he gasped with abandon, knowing he wasn’t going to last much
longer. Why did his baby brother do this to him?
He swiped his thumb over the head of his cock, collecting the generous amount
of pre-cum there, then smeared it around his rigid length. He imagined Sasuke
doing it with less finesse, undoubtedly inexperienced, but adorable
nonetheless. Itachi found himself wondering if Sasuke touched himself yet and
if he had, what did he think about?
Sharp teeth sunk into Itachi’s bottom lip as he fought down the nearly painful
moan building in his throat. His baby brother touching himself, panting,
whining, thrusting into his own hand as he neared his climax…what a beautiful
sight that would be.
Doe eyes watched from a crack in the doorway, hazy with confusion and a foreign
feeling that had yet to be named. He heard strange noises and he, being the
curious child he was, wanted to investigate the cause, especially since their
parents were off on a mission and they were home alone. Upon discovering his
big brother, he wondered what his Aniki was doing and why it seemed to feelso
good. Cautiously, his hand drifted towards the front of his pajama pants,
lightly pressing against the small bulge there. His hips lurched and a small
gasp fell past his lips at the unexpected jolt of pleasure.
What was that?
At the sound of Sasuke’s small noise, Itachi’s heavy eyes drifted to the
doorway and he moaned loudly at the sight he was met with. He should have
responded differently, his hand should have stilled, but it didn’t. It moved
faster, gripping harder as his climax approached with dizzying speed.
Sasuke whimpered from his place, knowing he’d been spotted but unable to tear
his eyes away from the sight in front of him. He watched as Itachi’s hand moved
faster and faster over his dick. He stood in silent awe of the size of it, and
found himself wondering what it would feel like for Itachi to touch his smaller
cock like he touched his own. The thought made him whimper.
“Aniki…”
Itachi’s eyes clenched shut and his hips bucked as he gasped, his orgasm
washing over him in blinding waves. His cock spurted ropes of cum, some
splattering onto his nightshirt, but he didn’t care. He didn’t care at all.
Sasuke watched with fascination, wondering what it was that came out. His own
cock twitched at the sight and it made him cry out quietly, though he had no
idea what was happening. Why was it so hard down there? His whole body trembled
as his mind clouded over with lust.
Itachi sat on his bed, smiling lazily at the obviously flustered little raven.
He beckoned with his fingers for him to come closer, and Sasuke did so
cautiously. Something about this situation seemed naughty, a little wrong, but
he couldn’t make his feet stop until he reached his Aniki’s bed. His eyes
drifted from Itachi’s half-hard cock to the white stuff splattered all over him
and he gulped.
“I-I’m sorry for spying,” he whispered abashedly, shuffling on his feet as his
brother stared at him. Itachi’s smirk grew until it was nearly a grin, his eyes
slowly trailing down Sasuke’s small, childish body until they reached the
noticeable bulge in the front of his pajama pants. Itachi licked his lips, his
cock quickly hardening completely in his hand at the beautiful sight.
“Baby brother,” he rasped, the tone of his voice making Sasuke’s tummy feel
hot. “How does it feel?”
Sasuke’s onyx eyes widened and an even darker blush spread across his cheeks.
He bit at his lip, not quite understanding what his Aniki meant yet knowing at
the same time.
“I-I don’t know,” he said, shifting on his feet yet again. “My whole body…it’s
kind of tingling.”
Itachi groaned and gave his cock a quick jerk for good measure, making Sasuke
whimper with need.
“Do you want Aniki to make you feel good?” Sasuke’s eyes widened.
“What do you mean?” he squeaked.
Itachi smiled. The boy’s innocence was a far bigger turn on than he
anticipated. He knew he shouldn’t take advantage of his brother—he was only
eight, far too young to understand such things—but Itachi found the opportunity
too good to pass up.
“Come sit down with me,” he said. Sasuke nodded, though the deep, raspy tone of
his big brother’s voice made him nervous. He had no clue of what to expect from
Itachi, and although he was apprehensive, his curiosity won out in the end. He
pattered towards the bed and sat on the edge, staring with fascination at his
big brother’s hard dick.
“How did it get that way?” he asked. Itachi chuckled and shifted closer to the
small raven, letting go of his cock that stuck out of the fly of his boxers in
the process.
“The same way yours did,” Itachi replied, settling down next to his baby
brother.
“Why did you…touch it like that?” he asked, his eyes once again darting to the
white stuff splattered all over Itachi’s blue shirt. It was slowly soaking into
the fabric, but was still noticeable and the tiny raven found himself wondering
what it would taste like, though he had no clue why.
“Because it feels good,” Itachi said, his eyes twinkling with amusement and
arousal. “Have you ever touched yourself before?”
Sasuke shook his head with wide eyes, causing a smirk to pull at Itachi’s thin
lips. He was so adorably innocent. A dark, hidden part of Itachi found himself
craving to steal that innocence away from the boy in the most pleasurably
sinful way. He wanted him moaning, screaming, begging for more…
“Will you let me touch it for you?”
Sasuke’s eyes widened even further, his cock jumping appreciatively in his
pajama pants. He gave a tentative nod, his cheeks heating up to the point where
they felt as though they were burning as Itachi inched closer.
Hardly able to believe his luck, Itachi took a shaky breath before popping the
first button on Sasuke’s nightshirt. The tiny raven jumped a little in
surprise.
“What are you doing, Aniki?” he asked, blinking nervously.
“It’ll feel better if you’re naked.”
“N-Naked?” Sasuke found the thought of being naked in front of his older
brother embarrassing, but nodded his assent. His Aniki always knew best, so it
would be pointless to protest.
 With what he hoped was a reassuring smile, Itachi continued to the second
button of his brother’s shirt, his shaking hands making it more difficult than
it needed to be. After some minor fumbling, Itachi managed in getting his
Otouto’s shirt completely unbuttoned and helped him slide it off his shoulders.
 Itachi groaned at the sight, his cock throbbing painfully at his little
brother’s perfect, pale upper body on display for him. His eyes drifted to two
pert, pink nipples that he wanted nothing more than to lick and nip at until
Sasuke begged for more.
Sasuke squirmed under Itachi’s heated gaze, looking anywhere but at his big
brother. He was alreadyso embarrassed, and only his shirt was off. He huffed a
little bit, but reminded himself againthat Aniki knew best. But it really
wasn’t fair if he was the only one who had to take off his clothes…
“Aniki,” he whispered, gazing at Itachi with eyes so sinfully innocent they’d
be his undoing. “Will you get naked too?”
Itachi nearly bit his lip off, but nodded. He quickly slipped his soiled shirt
over his head and tossed it aside. Sasuke raked his eyes over Itachi’s bare
upper torso, finding he quite liked it. It was toned and perfect with no extra
fat in sight, though it made Sasuke even more self-conscious. The elder smirked
at the younger’s lusty gaze then leaned over until their lips were almost
touching, but not quite. Sasuke gasped at their closeness, his tummy fluttering
with every shared breath.
“Aniki…”
“Do you trust me, Sasuke?”
The tiny raven nodded quickly, gently biting at his lip as his gaze darted from
Itachi’s eyes to his mouth.
“Of course I do.”
With a pleased smile, Itachi threaded his fingers through Sasuke’s spiky raven
hair—it was so, sosoft—and leant forward until their lips barely brushed.
Sasuke gasped, the small contact causing tiny sparks to dart through his body
in every direction, though they eventually focused in on onecertain place.
Sasuke nearly whimpered as Itachi pulled back, desperately craving more. He
wasn’t sure what exactly it was he wanted; all he knew was that he needed
something more than that gentle brush of their lips.
“More,” he whispered, his voice trembling slightly and his arms looping around
Itachi’s neck. “Please?”
Itachi couldn’t resist his Otouto when he acted so damn adorable, so he leant
forward again, brushing their lips together harder this time though it still
wasn’t enough.
Just as he was about to pull away, Sasuke pressed insistently against his lips,
earning a surprised grunt from the elder. He opened his eyes to find his little
brother’s eyes squeezed tight and his face dusted scarlet, intent on keeping
their lips melded together. Itachi smiled into the kiss before deepening it,
holding Sasuke’s face against his by his grip in his hair as their kiss slowly
increased in hunger and need.
The kiss was still somewhat chaste, and Itachi, wanting things to progress,
gently swiped his tongue along Sasuke’s bottom lip. The tiny raven squeaked in
surprise, his mouth opening just wide enough for Itachi to slide his tongue
through.
Sasuke’s eyes flew open at the unexpected action and he pulled back, shock and
embarrassment written all over his face. Itachi, unable to suppress an amused
chuckle, earned an adorable glare from his baby brother.
“Wh-Why did you do that?” Sasuke asked, trying his best to keep his glare in
place but failing miserably. Itachi pecked him on the nose, a huge smile
threatening to break across his face if his brother didn’t stop being so damn
sweet.
“Didn’t you say you trusted me?” he asked, smiling softly at Sasuke’s every
cute reaction.
With a scowl, Sasuke nodded.
“Then let me kiss you.”
“B-But…” Sasuke said, shaking his head. “Y-You never said we were gonna kiss…”
“I never said we weren’t.”
Sasuke scowled again but the expression was soon wiped off his face as Itachi’s
lips pressed against his again, this time followed closely by his tongue. As he
opened his mouth to let it through, Sasuke tried to ignore the oddness of the
sensation and instead focused on poking at Itachi’s tongue with his own. At
first he wasn’t sure if he really liked it, but once they got into it and their
tongues and lips established a rhythm, Sasuke found the feeling made his
ochinchin throb almost painfully.
He gasped into Itachi’s mouth as his big brother palmed him over his pants. The
tiny raven gently thrust his hips upwards, desperate for more of that sharp
pleasure he felt whenever Itachi rubbed him just the right way. He moaned when
he finally got it and the sound was music to Itachi’s ears. The elder knew he
wasn’t going to last much longer like this, so he pulled away, earning a
dejected whimper from his baby brother.
“You still need to get naked,” Itachi rasped, his own exposed cock twitching at
his words. With a nod and a small whimper, Sasuke slipped his pajama pants over
his hips, lifting his butt off the bed to help him along, then kicked them
away.
Itachi never had something push harder at his self-control before in his life.
After two long, torturous years of wanting,yearning to have his baby brother
like this, Itachi could barely find it in himself to take things slow with
Sasuke completely bare in front of him. All Itachi wanted to do was pin his
baby brother down and fuck him hard and raw until he couldn’t do anything but
moan and scream and beg for Itachi to fuck him harder. Unfortunately, Sasuke
was a tiny boy. Itachi would probably tear him if he tried to fuck him so
young, but that didn’t mean they couldn’t do other things.
Sasuke shifted on the bed, slowly bringing his knees to his chest for modesty’s
sake as his cheeks burned. The way Itachi looked at him made him feel funny,
like his entire body was on fire. He couldn’t tell if he liked the feeling or
not, but didn’t have much more time to think it over before Itachi pushed his
legs back down.
“Let me see all of you,” he purred, deepening the blush on Sasuke’s already
crimson cheeks. He leant forward and softly nuzzled the boy’s neck, placing a
gentle kiss there followed by a small, careful nip. “You’re so beautiful,
Otouto.”
Sasuke shivered as Itachi’s warm breath puffed over his neck. Why was his body
hot all over? And when Itachi bit down a little harder, a violent shiver passed
through his entire frame, causing goose bumps to form all over his arms and
legs. He cried out softly, twisting his neck to the side so Itachi could bite
and suck his neck more. That delightful shiver passed through his body in
differing levels of intensity as Itachi licked and nipped at various parts of
his Otouto’s pale, beautiful neck. Itachi found the sweet flavor of Sasuke’s
skin completely addictive; he couldn’t wait to taste him everywhere.
Sasuke whimpered as Itachi gently shoved his head forward so he had better
access to the nape of his neck. With a small smirk, Itachi leant forward and
sucked hard, earning a delightful mewl and jerk of Sasuke’s body.
“A-Aniki!”
Itachi released the pale, beautiful skin, silently wishing he could mark Sasuke
as his own but knowing there was no way he could get away with it. He turned
back to his little brother and smirked at the shivering mess he’d become after
only a few short minutes of his big brother playing with him. Just the way the
boy looked at him was enough to dispel any thoughts of stopping from Itachi’s
lust-clouded mind. He neededthis. He couldn’t stop at this point even if Sasuke
begged him to. He was too far gone.
“You still want Aniki to make you feel good, right?”
Sasuke nodded fervently. He didn’t know exactly what Itachi meant, but
everything they did felt good so far and he just wanted more. He felt like he
was going to go insane if he didn’t get relief from this…this thing, this way
he felt. Confusion flooded his young mind, but he knew Itachi would make
everything better. He always did.
“Please…” he said, looking at his big brother with the most unintentionally
fuckable expression imaginable. “Big brother...please make me feel good?”
Itachi groaned, his eyes slipping shut as the sheer wrongness of the entire
situation truly sunk in. A shudder wracked his partially-clothed body as his
cock pumped more pre-cum that dribbled down his shaft, courtesy of Sasuke’s
words. The tiny raven swallowed, watching intently as this happened, his eyes
following the small bead all the way down until it disappeared into the fabric
of Itachi’s boxers.
“What is that stuff?” Sasuke asked in a whisper. Itachi gently smiled at his
little brother’s childish innocence and opened his eyes.  
“You’ll understand when you’re older.” Sasuke frowned.
“I’m not a little kid!” he whined, his voice betraying how young and immature
he really was. Itachi smiled and couldn’t resist ruffling his sweet baby
brother’s hair, which only earned him an even bigger pout.
With a small chuckle, Itachi leaned over and kissed that cute pout right off
his Otouto’s rose-petal lips, but pulled back quickly. He smirked in amusement
at Sasuke’s dazed expression, before lightly pushing him onto his back.
“I’m going to touch you now, alright?”
Sasuke’s blush darkened but he nodded his assent. His tiny body trembled in
anticipation of his Aniki’s fiery touch, and he nearly whimpered when his big
brother crawled on top of him. With a smile that could bring anyone to their
knees, Itachi lightly ran his thumb over his Otouto’s nipple. Sasuke’s eyes
widened and he gasped in surprise at the little jolt that went straight to his
cock, and moaned when Itachi did it again. Pleased with this reaction, Itachi
lightly twisted the nub between his thumb and forefinger, eliciting the cutest
little mewls from the responsive body beneath him.
“Do you like that?”
Sasuke nodded and bit his lip.
“Y-Yeah,” he whispered, followed by a tiny moan as Itachi began playing with
the other one.  Itachi wet his lips and bent down, replacing the work of one of
his hands with his mouth. He sucked harshly and Sasuke cried out louder than he
had all night with a small buck of his hips.
“Nngh~ Aniki,” he moaned, tossing his head from side to side and lacing his
fingers through his big brother’s hair to hold his mouth there. Never once
stopping the work of his hand, Itachi repeatedly flicked his tongue over the
sensitive nub, pleased when he earned a mewl and a shudder every time.
So wonderfully responsive…
He soon pulled back, though Sasuke tried desperately to keep him there, and
smiled at the lusty look on his little brother’s face.
“Wh-Why did you stop?” Sasuke whined, tugging lightly on Itachi’s hair.
“Because I promised I’d touch you ‘down there,’ didn’t I?”
With a small gulp, Sasuke nodded. Itachi lightly ghosted his lips down, kissing
every area of skin he could. He playfully licked at one of Sasuke’s small
nipples, but soon turned his attention elsewhere. He kissed downwards until he
reached his belly button, then lightly traced it with his tongue. Sasuke
shuddered at the unusual feeling and his cock jumped a little, which Itachi
didn’t fail to notice. Deciding that he simply couldn’t take anymore, Itachi
moved down farther.
He nearly moaned when he came face-to-face with Sasuke’s hard little cock,
sticking straight up and just begging to be touched. Itachi blew lightly at the
tip, earning a small yelp and a trembling of Sasuke’s thighs.
“Nii-san, what are you doing?” Sasuke asked, his onyx eyes hazy with lust.
Itachi smiled secretively, a small gleam in his eye.
“You’ll see.”
Then he lapped at the head of Sasuke’s cock. He couldn’t help but moan at the
sweetness of his innocent skin, but his moan was drowned out by Sasuke’s
screams of pleasure.
“Aniki! Aniki!” he cried, lacing his fingers through Itachi’s hair and bucking
his hips closer to his mouth. A part of him wanted to protest—isn’t that
dirty?—but it just felt so good.
Itachi used his hands to lightly hold down Sasuke’s frantic hips, earning a
small whimper from the boy. But before he had a chance to verbally protest,
Itachi swallowed him whole. With a loud scream, Sasuke tried his hardest to
buck his hips and moaned in pleasured defeat when he couldn’t.
While he lay as still as he could, letting Itachi taste him as he pleased, the
elder couldn’t help but trail his hand up to play with Sasuke’s nipples again.
He earned a moan drenched in lust from the innocent angel that went straight to
his rock-hard cock.
Without detaching his mouth from its treat, he positioned himself so his cock
brushed against the bedspread, and lightly grinded against it. He nearly cried
out in relief; he was so hard it was painful.
He bobbed his head on his Otouto’s little cock, sucking as hard as he could and
silently wishing he could taste Sasuke’s pre-cum. But he couldn’t, as the boy
was only eight. The thought nearly made him sad, but then fantasies of other
nights to come clouded his mind and he grinded harder against his bed.
He tongued at the underside of Sasuke’s cock while dragging his mouth over the
entirety of it. The chorus of high-pitched little whines he earned were a
pleasant melody to his ears, and he couldn’t help the total adoration rising in
his chest. He loved Sasuke, and he was honestly happy he was making him feel
good, even if it wasn’t exactly…morally correct.
“Aniki! I-I feel weird! I think I’m gonna, I’m gonna-“
Sasuke screamed so loudly Itachi was sure their neighbors probably heard, but
he couldn’t find it in himself to care as he sucked on the twitching little
cock in his mouth. He watched Sasuke’s blissful expression and humped the bed
harder, unable to help himself as Sasuke pulled at his hair so hard his scalp
stung.
A couple seconds later, and it finally ended. Sasuke was a panting, tired mess
below his big brother as he tried to recover from the first orgasm of his young
life. Itachi pulled back with a triumphant smirk, just looking at his
disheveled little brother and feeling pretty damn proud of himself.
“Wh-What was that?” the tiny raven asked, his voice higher and breathier than
usual.
“You came,” Itachi said, though the gravelly tone of his voice made Sasuke’s
eyes dart towards him. He crinkled his brows, unsure of what Itachi meant.
“What does that mean?”
“You remember when you saw the white stuff come out of me earlier?”
Sasuke nodded, blushing slightly at the recent memory. He was suddenly reminded
of how he wondered what it tasted like…
“That’s what happened to you,” Itachi finished, smirking lustfully at his
innocent kid brother. Sasuke’s face scrunched up in confusion.
“But…did white stuff come out of me?”
Itachi shook his head, his loose raven hair swaying slightly with the movement.
“You aren’t old enough yet,” he said, though he frowned just slightly as he
said it.”Once you’re around my age it’ll start happening.”
Sasuke nodded, his mouth a small ‘o’ at this new discovery. So his body would
make that white stuff too?
“Will you do me a favor now, Sasuke?” Itachi asked as he slowly sat up.
The small boy nodded again, though he didn’t know exactly the favor Itachi had
in mind. But he did have a decent idea of what it could possibly be…
“Will you use your mouth on mine?”
“O-On your…ochinchin?” Sasuke whispered, his seemingly permanent blush
darkening once again. His tummy fluttered and heated up once more when he
thought of doing such a thing. It had felt sogood for him…could he make it feel
as good for Itachi?
Itachi chuckled at his brother’s childish choice of vocabulary, and nodded.
“Yes, that’s right.”
With a determined look stretching across his chubby face, Sasuke nodded his
head. Itachi moved back a little and positioned himself so he leant against the
headboard, just waiting for his precious little brother’s mouth where he craved
it most. His cock was practically soaked in pre-cum at this point just from
getting his baby brother off, and all he could barely contain his excitement.
Sasuke huffed resolutely and crawled closer to his Aniki. There was a lot of
that clear stuff smeared over his ochinchin, baffling the tiny raven with its
presence. Sasuke still wondered what it was, but he figured then wasn’t a good
time to ask. His Nii-san’s ochinchin was so hard it almost looked like it hurt,
and he really, reallywanted to make him feel as good as he just felt, so after
taking a deep breath, he reached his small hand forward and wrapped his fingers
around it.
A jolt shot through Itachi’s body just from that first touch, and he watched
carefully, unable to drag his eyes away from the sight of his little brother
touching his cock.
“It’s really slippery,” Sasuke muttered, his eyes wide with fascination as he
stroked it slowly. That clear stuff spread around more the harder he rubbed at
it, helping his hand slide over it with ease. His curiosity soon got the best
of him; he just had to know what it was! “What is this stuff, Aniki?” he asked
again.
“I-It’s pre-cum,” Itachi gasped, bucking slightly into Sasuke’s small hand. “It
m-means I’m aroused.”
“Aroused?” Sasuke tilted his head in confusion. He’d never heard that word
before.
“I want to be touched,” Itachi moaned, throwing his head back as Sasuke’s
teasing strokes continued.
“Oh,” Sasuke said, smiling slightly to himself. He rubbed his Aniki faster,
silently reveling in every little moan and pant and grunt he earned as he did
so. Itachi was being even louder than when Sasuke accidentally spied on him,
which caused a sense of pride to blossom in the tiny raven’s chest.
Remembering Itachi’s earlier request, he darted his little pink tongue out and
licked at the tip. His face scrunched up a little at the odd taste of the clear
stuff and he let it sit on his tongue for a moment, though his hand never
stilled. Itachi watched the bewilderment stretch across his Otouto’s face and
couldn’t stop a chuckle from spilling out. Would he ever stop being adorable?
“You don’t like the taste?”
Sasuke shook his head quickly, his eyes darting to Itachi’s as he stroked him
again.
“It’s not that,” he said. “It just tastes…sweet.”
Ah, Sasuke never did like sweet foods.
“I’m sorry, baby brother,” Itachi said with an amused smirk. Sasuke shrugged
with a small, embarrassed smile.
“I actually kinda like it,” he mumbled, blushing adorably. Without giving
Itachi a chance to respond, he latched his mouth onto the leaking tip. He
sucked on it, trying to get more of that sweetness to flow onto his tongue. He
really liked the taste of his Aniki, even though he wasn’t one for sweets, and
he wanted more.
“Shit, Sasuke,” Itachi groaned, gently lacing his fingers through Sasuke’s
unruly raven hair. He didn’t want to hurt him, but it was difficult not to buck
when he sucked that hard. He may have been inexperienced, but his enthusiasm
more than made up for it; he acted as though he was starved for Itachi’s cum.
The thought made the elder’s cock twitch almost violently.
Choosing to ignore his Aniki’s use of a swear word, Sasuke suckled fervently at
the tip, swirling his tongue around and mewling quietly every time he tasted
more sweetness. When he felt Itachi’s ochinchin twitch, it surprised him, but
he was rewarded with even more pre-cum so he figured it was good.
He rubbed the shaft of Itachi’s cock with both small hands while he pulled back
and tongued at the tip. Itachi watched his baby brother’s tongue lewdly swirl
around the head of his cock and held his breath in an attempt to ward off his
orgasm. He really didn’t want it to end just yet, but he was slipping closer
and closer to bliss with every small jerk of Sasuke’s hands or flick of his
tongue.
“S-Sasuke,” he choked, his hips thrusting slightly without his explicit
consent. “Will you b-be okay with swallowing the wh-white stuff?”
Sasuke sucked harder in response, and gazed at his Aniki with half-lidded eyes.
He felt excitement bubbling up in his chest at the thought of finally being
able to taste it, and redoubled his efforts. He twisted his hands faster and
faster and tried to take more of Itachi’s cock into his small mouth. Loud
slurping sounds could be heard as Sasuke worked his hardest to push his big
brother to completion, his strokes and sucks having taken on a nearly frantic
nature.
Itachi tried to control the desperate humping of his hips, but it became
increasingly difficult as his climax neared to the point he could almost taste
it. He never imagined that having his baby brother do this could feel so
amazing, but here he was, a panting, whining, moaning mess under the hands of
an eight-year-old.
“I-I’m gonna cum, Sasuke,” he whined, pushing Sasuke’s head down to meet the
frenzied thrusts of his hips. Sasuke choked a little bit but allowed his
brother to use him as he pleased. He felt so proud of himself in that moment;
just knowing he could make his Aniki go crazy like this was a definite boost to
his little ego.
A few more sucks, a few more thrusts, and Itachi came.
“Sasuke!” he moaned, loud and long. His entire body shook and his hands
tightened in Sasuke’s hair with the force of his orgasm. Never before had he
felt such mind-numbing pleasure course through his veins, and it was all thanks
to his adorable baby brother and his surprisingly talented mouth and tongue.
Sasuke mewled happily as Itachi’s cum flowed into his mouth. The taste was far
sweeter than he’d expected, but he honestly loved it. He drank down every
single drop and sucked at Itachi’s softening length until he was sure he’d
gotten all of it. After he finished this, he pulled back, a proud grin on his
angelic face. He pulled his hands back from Itachi’s cock, and the elder tucked
himself back into his boxers, smiling down at the little bundle of adorable
below him.
“Did I do okay, Aniki?” Sasuke asked, bouncing slightly. Itachi chuckled with a
nod and petted the tiny raven.
“You did absolutely amazing,” he muttered, exhausted from the force of his
release. Sasuke giggled, but that soon turned into a yawn. His bouncing slowed
a little and he held a small fist over his mouth until his yawn finally passed.
“Are you sleepy?” Itachi chuckled. Sasuke nodded in response as he lowered his
hand. Then his eyes widened and he shifted a little while his mouth opened and
closed a couple of times. He obviously wanted to ask Itachi something, but was
too nervous to do so. Itachi, sensing his baby brother’s unspoken question,
chuckled once more.
“You can sleep in here if you want.”
Sasuke beamed and practically tackled Itachi. He snuggled his bare chest
lovingly and tightly wrapped his arms around the bigger body.
“I love you, Nii-san,” Sasuke said, stifling another yawn. Itachi smiled
warmly, his stomach fluttering because of the small body pressed so closely
against his own. Surprisingly, he didn’t feel guilty at all for taking
advantage of his adorable baby brother.  He consoled himself with the reminder
that he didn’t do anything Sasuke didn’t enjoy.
With a smile, he gently lowered both of them down until they lay on the bed,
and his smile widened once he saw the state of his precious Otouto. The small
boy had already fallen asleep. Itachi shook his head, his smile growing as he
listened to Sasuke’s cute little snores. Itachi leant forward and lightly
pecked Sasuke on the forehead, then his gently parted lips, before laying back
and holding Sasuke as close as he could.
This was the start of something beautiful. 
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