Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/826493.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Naruto
  Relationship:
      Uchiha_Itachi/Uchiha_Sasuke
  Character:
      Uchiha_Itachi, Uchiha_Sasuke
  Additional Tags:
      Sibling_Incest, Teasing, Anal_Sex, Anal_Fingering, Rimming, Shota, One
      Shot, French_Kissing, PWP, Plot_What_Plot/Porn_Without_Plot, Swimming
      Pools, Summer, Little_Brothers, Oral_Sex, Male_Slash, Shameless_Smut,
      Porn, Slutty!Sasuke_because_I_fucking_can, Yaoi
  Stats:
      Published: 2013-06-01 Words: 4981
****** Summertime Lovin' ******
by orphan_account
Summary
     Itachi is back for the summer and Sasuke's out to seduce him. Poor
     guy.
This was the most difficult summer of my life.
I don't know why my little brother decided to torture me in the worst way
imaginable. I don't know why my little brother was the damn sexiest thing I'd
ever set eyes on. I don't even know how he was able to pull me in the way he
did. Perhaps it was the curve of his jaw, the pink plumpness of his lips, the
coal black of his eyes, the gentle slope of his narrow hips…
And to think, he was only twelve.
My feelings for him blossomed around the time he was nine. A bit young, I know,
but it wasn't his fault. It's mine for being the depraved man that I am. I
tried my hardest to ignore this attraction, but let's be honest—my little
brother is hot, regardless of age. I tried to distance myself from him, but he,
being the clingy little shit he is, was having none of that. But thankfully
when I left for college (a year early, I might add), I was free of his terribly
adorable pleas to sleep in my bed every night—which I can honestly, without a
doubt, admit were complete and utter torture.
When I came home from University for the summer to spend time with family, I
was saddened to hear that our parents were going to be out often due to
traveling for work. They told us that Sasuke and I would have the house to
ourselves most days. I didn't really mind at first, as my brother and I have
always gotten along better than most siblings and I figured my 'feelings'
should have passed by now, but I definitely would have reconsidered if I had
even the slightest clue of what he was planning.
The first day I was home, I discovered his new tendency to swim in our backyard
pool nearly every day. I didn't read into it, seeing as swimming is something
kids do to cool off, but having a sopping wet, scantily-clad, sexy little
brother running around all day was definitely not what I needed. Especially
with all those adorable smiles he kept sending my way. I did my best to ignore
him in hopes to squash the feelings I'd been harboring for three years, but it
was so, so difficult.
"Nii-san!" He ran inside dressed only in clingy, wet, white swim-trunks. His
hair was sopping wet and little drops of water were running down his well-
sculpted, perfect torso that was only caught in the first stages of puberty.
Suppressing a shudder, I gave him my undivided attention.
"Yes, Sasuke?"
"Come swim with me," he pouted in the most adorable way imaginable. I sighed.
How was I supposed to swim with him? Swim-trunks don't leave much to the
imagination, and the noticeable erection I was sporting thanks to him wasn't
going to go down anytime soon.
"Sorry, Sasuke," I said, "maybe tomorrow."
With another heartbreakingly cute pout, he scampered back outside, leaving me
with a terrible problem. But instead of trying to take care of said problem, I
tried to focus all my energy on willing it away. I knew if I just disappeared
upstairs to my room, Sasuke would come looking for me. He never stayed in one
place for long and I really didn't need him to catch me in a compromising
situation. Locks were hardly a hindrance to him.
That was only my first day home.
The second day, I sat outside with him near the pool. It was a compromise of
sorts, since he said he was sick of swimming alone and I still refused to wear
any sort of swimwear. He glare-pouted at me for the first twenty minutes before
finally giving up and jumping into the pool. He splashed around for a while
until he got bored. Then, he sat on the chair closest to me in all his soaking-
wet glory.
Out of the blue, he shot out of his chair and ran inside. I quirked an eyebrow,
but didn't comment when he rushed back outside as though something terrible was
chasing him. He plopped back down on his chair with a huge grin stretched
across his adorable face. He held out his hand, firmly grasping a terrible,
terrible thing.
"Do you want a popsicle, Aniki?"
I felt my eyebrow twitch.
"I'm fine," I replied, my voice not betraying my inner panic. "I'm not in the
mood."
His face fell just a fraction, but he shrugged it off and got to work on
hastily unwrapping the frozen treat. I watched, transfixed, as his pretty
little lips parted to let just the tip of the popsicle through. He sucked on it
happily, and when his eyes flickered up to meet mine I swear my throat went
completely dry. He held eye contact with me as he slowly slid more and more of
the popsicle into his mouth. I was completely frozen as he practically gave the
damn thing head, but once my senses returned to me I quickly stood and mumbled
something about a term paper being due—which was stupid of me, it
was summer for Christ's sake—then rushed back inside and up to the safety of my
room.
Just what the hell was that?
I wracked my brain for any plausible explanation aside from the most obvious
one. He was twelve, for Christ's sake! Why would he be trying to, well,
seduce me? So I brushed it off and told myself I was blowing things out of
proportion, but that still didn't help get rid of my Sasuke-induced problem.
I sighed and slowly sunk onto my bed. It looked like I had some business to
take care of. I unbuttoned and kicked off my shorts with haste, eager to find
some relief. I wrapped one hand around my painful arousal and fisted it
quickly, not giving myself any time to draw things out. I knew he would be up
to check on me, but this was something that needed to be taken care of. It
simply couldn't wait.
I moved my hand in jerky movements over my heavily-leaking cock, images of my
soaking wet little brother sucking on something else running through my mind.
My hand moved faster and faster until I was teetering on the edge. So close, so
close…
Then I came so hard my vision went white.
After it passed, I was left sitting there panting, still gripping my spent
length and…still sexually frustrated. I groaned and stood to clean my hand and
put my pants back on. I grabbed a wad of tissues, wiped off my hand, disposed
of them and redressed myself, then walked to my door and opened it.
There stood my little brother, smiling so innocently it was nearly enough to
arouse me all over again.
"You know, Nii-san," he said, "if you ever need help with homework
or anything else, you can always just ask me."
My eyes widened to the size of dinner plates, I'm sure of it, but I still
wouldn't allow myself to believe he was attempting to seduce me. Really, can
you spell denial?
I mumbled a half-hearted 'thanks' and brushed past him, eager to be free of his
presence. Lord knows how that child pushed my self-control. I heard him laugh
behind me but didn't turn around to investigate. I just needed to get away from
him before I snapped.
That night, he asked to sleep in my room. Since he hadn't asked the night
before, I hoped he outgrew it, but apparently not. I said no at first but his
begging wore me down. So, I reluctantly agreed.
Apparently my queen sized bed wasn't big enough for two people to sleep
comfortably. That was the only explanation my sleep-deprived brain could
produce as to why he was practically sleeping on top of me with no thought of
the free space next to him. Needless to say, I didn't sleep very well that
night.
The next day, he had a friend over. I believe his name was Naruto. I was
thankful for this, as he would have someone to swim with and I would be free of
his incessant begging.
He and my brother splashed around innocently enough, but there were plenty of
times when they were a bit closer than necessary. Call it my overactive
imagination, but I could have sworn he was trying to make me jealous. He
practically clung to that kid.
My suspicions were only proved correct when I found them sharing a rather
heated kiss on the living room couch. They were still in their sopping-wet
swimsuits and I basically had a front-row seat to my underage brother and his
underage friend making out, so needless to say, I felt like more of a pedophile
than usual. I tried to pry my eyes away and slink away unnoticed to save both
my brother and I some unnecessary humiliation, but that's not what ended up
happening. One would think Sasuke would have been at least a little bit
embarrassed that his older brother caught him locking lips with
another male, but no.
He stared straight at me.
Naruto was clueless and his eyes were closed, but as I stood in the doorway,
mouth agape, Sasuke stared straight at me with his lips attached to that whiny
little blonde. I swear he was smiling into that kiss, and as he threaded his
fingers through Naruto's hair to pull him closer, he let out the most arousing
little moan.
I quietly excused myself from that scene.
I chalked it up to two kids experimenting and tried not to give it much more
thought. Of course, I couldn't exactly explain away the fact that he locked
eyes with me while feverishly making out with that boy, but I tried to ignore
it. I tried to ignore all of it.
He slept in my room that night as well. Personal space was obviously something
foreign to that child.
The next day, it was storming. I was silently thanking whatever god exists for
this. Finally, a day with my brother wearing some actual clothes.
I lay back on the couch watching television and didn't even notice when he
strolled into the room. I only noticed when he plopped down on top of me. I
tore my eyes away from the movie I was watching and my breath caught in my
throat.
He wasn't wearing a shirt.
He smiled cheekily and cuddled himself into my chest. His beautiful black eyes
innocently gazed up at me, framed by lush, dark lashes. How did he manage to
look so breathtaking without even trying?
"Sasuke, is there any reason why you're only partially clothed?" I asked.
"I don't like clothes," he said. "I'd be naked all the time if I could."
Now, I couldn't brush that one off. This coupled with everything else… The
little shit was definitely trying to seduce me. I gulped and tore my eyes away
from him and back towards the television. Willing away the erection that was
threatening to form for the next two hours was the hardest thing I've ever done
in my life.
That night, he once again slept in my room. He slept on top of me. I didn't
sleep.
Our parents were supposed to come home that weekend to check on us and stock up
the kitchen with more food, and I'd never been more thankful to see my mother's
face before in my life. Here I was, trying to be a good older brother
and not take advantage of my incredibly sexy baby brother, and he was trying
his hardest to get in my pants. Life just isn't fair.
Sasuke didn't have a chance to try and seduce me during our parents' stay and
he even slept in his own room, but all too soon, they were gone again. It was
almost as though he was trying to make up for lost time once they left.
"Nii-san, can you help me put on sunscreen?"
We were outside, the weather once again sunny. He lay reclined on his usual
chair, sunbathing or something. Well, it was better than him being all wet.
I lifted an eyebrow, but nodded and took the bottle he held out for me. "Where
do you need it?" I asked.
"My back."
So he lay on his stomach, his cheek resting on his arm. He smiled at me in that
way that really made it difficult for me to resist him, but I ignored it and
set about the duty of protecting my baby brother from skin cancer. I squeezed a
decent amount onto my palm, placed the bottle on the table next to us and
rubbed my hands together. I then got to work on rubbing it into his back. I
started at his shoulder blades, being careful not to miss a single spot, and
the response I earned was…unexpected, to say the least.
"Mm, that feels so good, Aniki."
I felt my cock twitch in the confines of my shorts. Did he really have to say
it like that? I shook my head to dispel all inappropriate thoughts and once
again set about applying the lotion. I rubbed it down his back, and I swear he
fucking arched into the touch. He let out a breathy little sigh and I nearly
bit my lip off in an attempt to not jump him. It seemed like an eternity until
I finally covered the entirety of his pale back, but I was never gladder for
anything once I finally finished.
"I'll be upstairs," I said, eagerly trying my hardest to leave before he
noticed my problem.
"Ahh, Aniki, why don't you swim? You look like you need to cool off."
I froze.
That little shit.
I turned my gaze towards him and saw him grinning at me. No, not a smirk, but a
fucking grin. His eyes darted down to the front of my khaki shorts then up to
my face and he licked his lips.
"I could help you cool off."
I swear my heart stopped beating for a moment.
"I-I'm fine," I choked out. Why must he push me like this? "I just need to go
inside."
So with that, I ran back into the safety of the house and collapsed onto my
bed.
He's your little brother, Itachi, I thought to myself. You cannot take
advantage of him.
Later that evening as I made us dinner, he sat on the counter, shirtless. He
smirked at me as I tried my best to not check him out, but the fact he was
wearing short shorts this time as well made that even more difficult. His ass
was practically hanging out when he stood, and when he sat, every inch of the
beautiful, pale skin of his legs was exposed.
"Where did you get shorts like that?" I asked. There was no way our parents
would have bought him something so…slutty. He was just a kid!
"Why? Do you like them, Aniki?"
I paused and took a deep breath. Damn that child to hell.
"I doubt mother or father would have bought you something so revealing."
"I do a lot of things mom and dad don't know about."
I nearly dropped the pan I was holding.
I could practically feel him smirking behind me, but I shook my head and
focused on finishing cooking for us. Once dinner was done, I sat down next to
him at the stools behind the counter. God, he was practically naked. Those
tight little shorts were a second skin. I guess what he said about not liking
clothes was true.
"So, Aniki," he said, leaning his cheek on his hand. "What did you think of
Naruto? I was thinking of having him over again soon."
I paused with my chopsticks halfway to my mouth.
"He seemed like a nice boy," I said.
Sasuke grinned.
"He's a good kisser, too."
I almost choked on the bite of food I finally took. "Don't you think you're a
bit young to be kissing?"
"Come on, Itachi-nii," he said. "I'm twelve." He leaned forward then, his
fingers dragging lightly down my arm and causing goose bumps to appear under
his feather-light touch. "I'm not a little kid anymore."
I shook my head to dispel all inappropriate thoughts. Weren't twelve-year-old
boys supposed to play with action figures and read comic books and not try to
seduce their older brothers?
"You're still young, Sasuke," I said. His face fell a little, but he retracted
his hand and started eating his dinner. We made idle chatter after that, and I
almost thought I was safe for the night.
I was wrong.
After we finished eating, I asked him to help me clean up as usual. He agreed
without a second thought. We washed dishes together, but apparently he thought
it would be fun to spray me with the detachable hose. I yelped—it was a very
manly yelp, of course—and set about the task of revenge. I stole it from his
grasp and sprayed him back.
Oh, how I wish I never did that.
After all the laughing and fun was over, I was left with a very wet,
even more naked than usual baby brother. Those little black shorts clung to his
lithe frame and I got hard so fast it almost made me dizzy. He smirked adorably
and sauntered closer to me, balling his fists in the front of my soaked shirt.
"I'm so wet, Aniki. It's all your fault."
I growled. Yes, I fucking growled.
"Sasuke…"
"Aniki," he said, moving even closer to me. "It's not nice to make people all
wet and not help them out afterwards." He smirked as his hand ran down the
front of my soaked white shirt.
Then he had the audacity to fucking rub me over my soaked pants. I couldn't
stop a moan from tearing its way from my throat. I shot daggers at him, but his
gaze locked me in.
"Aniki," he chuckled, his voice happily surprised. He palmed me once again.
"Did I do this? That wasn't very nice of me."
Everyone has a breaking point. No matter how perfect they're supposed to be,
they're still human. So that's my excuse as to why I was suddenly kissing him
so hard he was forced backwards. I grabbed his little barely-covered ass and
kneaded it so roughly I was sure I must have bruised him, but he didn't seem to
mind one bit. He moaned and looped his arms around my neck, pulling me closer.
He even managed to pull my hair out of its usual ponytail.
Soon, I'd managed to pick him up and shove him against the counter. I grinded
against him and was pleasantly surprised to feel that he was as hard as I was.
I licked along his bottom lip, asking for entrance, and he happily opened his
mouth in response. Hm. I guess he spent more time kissing that Naruto kid than
I originally thought.
I pulled my lips away from him and nibbled at his neck.
"You fucking tease." I emphasized the last word with a rough bite to his neck.
He cried out, but his hold around me tightened as though he was trying to hold
me there.
"Nii-san," he whined breathlessly, his chest rising and falling quickly. "I
don't know what you're talking about."
That little shit.
I practically yanked him towards the living room and threw him onto the couch.
I wasted no more time in crawling on top of him and pinning his wrists above
his head. I was the furthest thing from gentle.
"You know exactly what you did," I growled, my voice hardly recognizable as my
own, "and now you're going to pay."
I couldn't tell whether that delicious little whimper was out of fear or
excitement, but I'm guessing the latter. I ripped those slutty little shorts
off him and tossed them aside. The tease wasn't even wearing underwear.
I couldn't help but moan and bite my lip once my little brother, in all his
still-wet and naked glory, was finally exposed to me. God, he was so beautiful.
His pale, creamy skin was so flawless, so perfect, and with his cock jutting
proudly and leaking beads of pre-cum that were dripping down his length…all I
wanted to do was taste him.
So I did.
He screamed and threaded his fingers through my hair as I swallowed his cock
whole. He was only twelve, so he wasn't exactly big, but this only made my job
easier. I sucked with all my might, and he thrashed and screamed and moaned so
loudly I honestly wouldn't have been surprised if our neighbors heard him.
"Oh GOD, Nii-san!"
I internally smirked. Who's the one in control now?
I sucked as hard as I could, and judging by the bucking of his hips and the
fact that he was practically yanking my hair out, he was already close. So,
with an audible 'pop', I detached myself from his cock.
He tried to glare at me, though it was really quite pitiful. His eyes were so
hazy and clouded over and his cheeks so flushed that I honestly can't fathom
how I didn't just fuck him right then and there.
"You're going to have to be patient, baby brother," I teased. He pouted and
bucked his hips.
"But I'm so hard, Nii-san."
I groaned. Christ, how could a kid so young be so…whorish?
I held two fingers in front of his mouth.
"Get them wet," I said. He nodded with a smirk and took them into that eager
little mouth of his. I felt his tongue coat my digits with saliva and it only
served to make me even harder. It also made wonder what else he could do with
that tongue of his…I was suddenly very jealous of that popsicle.
I pulled my fingers back once I was sure they were wet enough.
"What are you gonna do?" He asked.
Ah, so he was still somewhat innocent. I smirked at him.
"Prepare you."
His eyebrows furrowed in confusion, but before he had a chance to say anything
else, I parted his ass-cheeks with one hand and traced around his pucker with
my middle finger. He gasped at the odd feeling and bit his lip. I chuckled
before slowly pushing my finger in to the knuckle. There was a good bit of
resistance, as expected, but he took it with a surprising amount of ease. I
chanced another look up at him, and his eyebrows were drawn even closer
together and his hair was clinging to his forehead from a combination of sweat
and playing with water.
I gently began moving the finger in and out of his virgin entrance. He didn't
show any sign of discomfort as I did this, and I soon deemed him ready for
another finger. I gently eased it in alongside the other and scissored them
slowly, stretching him. I heard a sharp intake of breath and felt him tighten
around me.
"Relax, Sasuke," I said. "It will hurt more if you're tense."
"O-Okay."
I once again pushed my fingers in and out and found it easier than before. I
did this for a while, but then decided to try and find his spot. So, I angled
my fingers in hopes of finding it and wasn't the least bit disappointed with
his reaction once I did.
He screamed so loudly my ears nearly rang.
"A-Again! Oh God, please, do that again!"
With a shiver, I began abusing his prostate with my fingers. He pushed his hips
back to meet every thrust of my digits inside his tight hole, and soon he was
nothing more than a panting, moaning, screaming, writhing mess.
He clutched at the couch cushions and threw his head from side to side, moans
spilling out of his pretty little mouth. His cock leaked so heavily now that I
was once again tempted to swallow it up, but resisted. I needed to find my own
release soon. I was nearly in pain.
But, there was one thing I still really wanted to try…
"Itachi!" He screamed, his small fingers once again finding purchase in my
hair. I tongued at his entrance alongside my fingers, never once slowing their
pace. Ah, he was so wonderfully responsive. I continued this for a few moments,
his noises increasing in volume and pitch until my cock was straining against
the front of my jeans so badly it really fucking hurt. Feeling myself reach my
limit, I removed my fingers and tongue from his hole.
"W-Why did you stop?" He panted, his eyes half-mast.
I smirked and leant back to unbutton my pants.
"You'll get something even better in a moment."
He moaned and squirmed under my gaze. "H-Hurry," he begged.
"Why should I?" I chuckled. "You teased me for days."
"Nii-san," he sobbed, "please!"
I chuckled once again. Who knew my baby brother would be so needy? I stroked my
cock a couple times, smearing the generous amount of pre-cum around in an
attempt to lubricate myself. I didn't want to hurt him. I positioned myself
over him so I could kiss him as a distraction.
"Are you ready?"
He nodded and looped his arms around my neck. I swept down and kissed him as
the head of my cock nudged at his hole. I began pushing in slowly and I felt
him freeze up. I detached our lips and swept some of his sweaty bangs off of
his face.
"Hey," I whispered, "relax. I promise it'll feel good in a minute."
He nodded and shut his eyes. I leant in to kiss him once more, and thrust
myself halfway inside. He broke away from the kiss with a whimper. I kissed
every part of his face I could, trying to calm him down.
"I'm sorry, Sasuke," I said, guilt beginning to set in. "Do you want to stop?"
He shook his head. "K-Keep going."
With a nod, I continued pushing in. I didn't stop until my thighs were touching
the back of his. I released the breath I hadn't realized I'd been holding and
gave us both a moment to adjust. God, he was so deliciously tight and hot. I'm
surprised I was able to keep myself from cumming right there. His ass felt
so perfect.
He panted and clutched at my hair for dear life, his eyes tightly screwed shut.
He was covered in sweat and obviously uncomfortable.
"Are you sure you're alright?" I asked, leaning down to kiss away the small
tears that were leaking from his eyes. He nodded.
"You can move."
I started slowly at first, gently gyrating my hips, not really pulling out
much. He didn't seem to mind this, so I slowly, slowly pulled out until I was
only halfway in then thrust back inside. The moan I earned wasn't the least bit
agonized. It sounded like pure, undiluted sex.
"Again!"
I pulled out all the way and made a careful attempt to hit his prostate every
time I plunged back inside. He screamed and brought his hips back to meet my
thrusts. I gradually increased the pace of my hips until the sound of skin
smacking against skin was so loud it was nearly deafening. Sasuke's screams, of
course, were still louder.
I suddenly sat back and pulled him with me, my cock still inside him. He looked
at me curiously and I smiled in return.
"Ride me."
The blush that spread across his face was just precious.
"I-I don't want to mess up," he mumbled, leaning forward and grasping my shirt.
"You'll be fine."
And with that, I grabbed his hips and slowly pushed him up and down on my cock.
He gasped and arched his back. After a few moments of this, he took it into his
own hands and bounced on my lap. God, just watching him ride me like that
was so incredibly hot. He was flushed such a deep, beautiful crimson from head-
to-toe. His eyes were tightly squeezed shut and his moans gradually increased
in volume until he was practically screaming again. He rode me harder and
faster until his mouth went slack and he was incapable of doing anything except
moaning. I picked up the pace of my hands on his hips, and earned a delighted
scream in response.
I captured his lips with my own. I could feel my peak approaching fast, and by
the sporadic tightening of his walls around my cock, I could tell he was close
as well. I brought my hand down to fist his cock in time with my thrusts, and
he had to break away from the kiss as he screamed his release. He coated both
of our stomachs with his cum, and at the sight of my baby brother's face
completely lost in pleasure and the feeling of his ass tightening impossibly
around my cock, I came. I came harder than I ever had before in my life. I rode
out my climax, gently bringing him down on me, until I was completely spent.
Then the tinier, barely conscious body slumped over on me, panting as though he
just ran a marathon.
We were silent for a few moments, simply trying to catch our breaths and
waiting for the initial shock of such overwhelming pleasure to ebb away. Sasuke
was the first to speak.
"So…all the teasing did work," he mumbled, running his fingers through my hair.
I laughed.
"What happened to denying it?"
He huffed. "Shut up. It still worked."
Chuckling, I gently pulled his head back until I was face-to-face with the
little nuisance.
"Yes. It worked like a charm."
Then I kissed him.
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