Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/1718159.
  Rating:
      Explicit
  Archive Warning:
      Choose_Not_To_Use_Archive_Warnings, Underage
  Category:
      M/M
  Fandom:
      One_Direction_(Band)
  Relationship:
      Zayn_Malik/Louis_Tomlinson, Zayn_Malik/Harry_Styles
  Character:
      Zayn_Malik, Harry_Styles, Louis_Tomlinson
  Additional Tags:
      Underage_-_Freeform, Step-Brothers, Siblings, Incest, Dirty_Talk,
      Voyeurism, kind_of, Bottom_Louis, Top_Zayn, louis_is_15, Zayn_is_19,
      doesn't_really_have_a_plot, PWP, Plot_What_Plot/Porn_Without_Plot,
      Masturbation, Rimming
  Stats:
      Published: 2014-05-31 Words: 2134
****** These Walls are Paper Thin ******
by walking_travesty
Summary
     Zayn's younger step-brother, Louis, can hear every single thing he
     does with his boyfriend, Harry.
Notes
     Have fun, kiddo.
See the end of the work for more notes
Louis has had enough of this. Three months. Three months of headboards banging
against the wall, of choked off moans, and throaty groans. Along with squeaky
spring mattresses and shouting matches of “Zayn!” and “Harry!” Louis was done.
Not necessarily because it bothered him (much), but mostly because he wished he
was a part of it, more specifically-he wish he was a part of it with Zayn-just
Zayn.
Louis knew it was wrong, wrong to fantasize about your older brother –STEP-
Brother, he would remind himself, just so it could make him feel better about
it. From the very first time Louis laid eyes on Zayn, he was sort of infatuated
by the dark haired boy and five years later, things haven’t changed much.
Except for the fact that Louis wanted Zayn to fuck him-badly.
From around the time Zayn started dating Harry, his fantasizes of Zayn fucking
him had increased dramatically. He’d imagine Zayn crawling into his bed in the
middle of the night and thrusting inside of him until he was literally
screaming.
That wasn’t exactly a normal thing to think of your brother. STEP-Brother.
The fact that his bedroom is directly next to Zayn’s didn’t help at all, not to
mention that he can hear literally everything he and Harry got up to when they
were alone. At first Louis tried to ignore it, tried to argue with Zayn over
the fact that “I can literally hear you fucking Harry into the mattress”
without blushing after he said it. Zayn had taken Louis’s words into
consideration; Louis could hear Zayn shushing Harry whenever he got
particularly loud. Recently however, they’ve been louder than ever. Louis is
lying on his bed, doing homework on a Friday night (such a party animal he is)
when he hears the first moan. It catches him off guard for a minute before he
looks up to the wall in front of him and sighs.
“Fuck, Zayn.” He hears Harry moan, followed by a squeak of Zayn’s mattress.
“Oh for fuck’s sake.” Louis huffs as he rolls onto his back, staring at the
ceiling.
“You like that, slut? Huh?” Zayn huffs, followed by the bang of a headboard and
the distant crack of a spank. An involuntary moan jumps for Louis’s throat. He
quickly presses a hand to his mouth; feeling his dick begin to thicken in his
pants. There’s a string of curses followed by the rhythmic pattern of the
headboard banging against the wall. Louis hears another loud groan, followed by
another crack of a spank.
“You like that, baby?” Zayn groans loudly, voice gruff. There’s heavy panting
(presumably from Harry) and a breathy reply. Before Louis even notices, his
hand is under the waistband of his pants and he has a hand wrapped firmly
around himself. He keeps his other hand clamped on his mouth as he pumps
desperately at his hard cock; precum dripping messily into his boxers. A high
squeak is muffled around his hand as he hears Zayn moan loudly. Louis starts to
wither as the pressure of his orgasm pushes at the pit of his stomach.
“Dirty fucking whore.” Zayn growls; that’s all it takes for Louis’s back to
arch off of his bed as he comes into his hand, some landing on his lower
stomach. His eyes nearly roll back in his head as he tries to keep his voice
quiet. There’s a high pitched moan (probably from Harry) and then silence.
Louis tries to even out his breathing as he strains to hear more. When he hears
them start to get dressed, Louis figures it’s a good time to go to the bathroom
and wash up.
By the time Louis’s hands are cum free and he’s rounding the corner to his
bedroom, he bumps into Harry who (attempts) to sneak out of the house.
“Oh! Um, hiya boobear.” Harry whispers, a light blush on his cheeks.
“Hi, Harry.” Louis mutters as he tries to walk past him. Harry intercepts him,
putting a hand on his shoulder.
“Listen, did you uh,hear me and Zayn uh-“
“Are you asking me if I heard you guys fucking? Because the answer is yes.”
Louis says simply, pushing past Harry to his room.
“Sorry.” He hears Harry mumble before Louis shuts his door. Fucking idiot.
Louis flops on his back, hands placed behind his head. He was going to fuck
Zayn.
Soon.
The following night, when he knows that it’s just going to be him and Zayn in
the house all night, he puts his plan into action. It’s around midnight when
Louis creaks open the door to Zayn’s bedroom, the only light coming from the
lamp in the hallway. Louis steps in all the way, shutting the door behind him
quietly. He can see Zayn stretched out on top of his blankets, wearing nothing
but a pair of tight black boxers. Louis crawls into the bed next to him,
curling up to his side.
“L-Lou? What are you doing in here, love?” Zayn whispers, wrapping an arm
around Louis’s thin waist.
“Couldn’t sleep, wanted to come in here with you.” Louis sighs, nuzzling his
nose into the crook of Zayn’s neck. Zayn hums as he scoots closer to Louis,
putting a leg on top of Louis’.
“Good, I needed a cuddle buddy.” Zayn murmurs into Louis hair. Louis waits
until Zayn’s breath has evened out before he slides one of his hands down,
rubbing lightly over the bulge of Zayn’s underwear. Zayn shifts slightly,
sighing heavily into Louis’s hair. Louis pushes more firmly on Zayn’s crotch,
squeezing lightly as he kisses Zayn’s neck tentatively.
“Lou, what are you doing?” Zayn moans lightly.
“I’m not doing anything, Z.” Louis replies innocently, licking a strip up
Zayn’s neck. He rubs Zayn’s dick through is boxers as he starts to suck on
Zayn’s neck. Zayn groans, thrusting lightly into Louis’s hand before stopping.
“I-I don’ t think we should be doing this, Louis. I mean we’re-“ Zayn starts
but stops when the tips of Louis’s fingers slide under the waist band of his
boxers.
“We’re not really related Zayn, it’s okay.” Louis whispers, leaning up to kiss
the corner of Zayn’s mouth. “I know you want it.” He adds teasingly as he grabs
onto Zayn’s half-hard dick, pumping slowly. Zayn groans lowly, resting his head
in the crook of Louis’ neck. Louis grips harder, his own dick hardening as he
Zayn grinds into his hand; his breath coming out in short puffs on the side of
his neck.
“Fucking Hell, Lou.” Zayn moans as he presses his lips into Louis’. Louis hums
happily into the kiss, leaning up further into Zayn’s lips. Zayn tugs filthily
at Louis’ bottom lip, growling as he does so. He places a hand on the back of
Louis’s head, bringing him closer. Louis moans as Zayn tugs on the back of his
head, forcing his tongue into his mouth. A high pitched moan escapes Louis’s
throat as he rolls his body into Zayn’s.
“I fucking love that sound.” Zayn groan, rolling his tongue against Louis’
after.
“Fuck me.” Louis whines, grabbing greedily at Zayn’s arms. “Please.”
“The little slut wants to get fucked, yea?” Zayn breathes into Louis’ mouth,
his other hand sliding down Louis’ chest, his fingers stopping at his left
nipple.
“Yea, I need it.” Louis breathes, moaning as Zayn rolls his nipple between his
fingers.
“I’ve got you, princess.” Zayn mumbles against Louis’s lips. Zayn sits up,
flipping over so that he’s hovering over Louis; knee between his legs and hands
wrapped firmly around Louis’ wrists. Zayn attaches his lips to Louis’s neck,
sucking purpling bruises into his neck and collar bones. Louis moans as he
rolls his hips against Zayn’s. He travels down the smooth, tanned skin of
Louis’ chest; leaving purpling bruises as he goes. Louis is squirming and
whining as Zayn’s lips meet the top of Louis’ boxers. An evil smirk grazes
Zayn’s features as he teasingly flicks the tip of his tongue against Louis’
growing erection.
“Shit.” Louis groans, frustrated. He lifts his hips off of the bed, thrusting
his crotch against Zayn’s face. He laughs, taking the hint as he dips his
fingers past the waistband of his boxers. Louis’ erection hits the bottom of
Zayn’s chin as it springs up, lying against Louis’ stomach after. Zayn pulls
his boxers the rest of the way down, pulling them off his body before he grabs
at Louis’ thighs hungrily. He sucks purpling bruises against Louis’ inner
thigh, the squeaks Louis makes going straight to his hardening dick. Zayn
trails lingering kisses up the side of Louis’ thigh, inches away from Louis’
entrance.
“Touch me,please.” Louis whines, voice raspy and high-pitched. Zayn kisses the
underside of Louis’ arse, spreading his legs wider.
“Do you want me to eat you out?” Zayn mumbles, relishing in the way Louis’
thighs shake.
“Oh fuck yea.” Louis groans loudly, hooking his ankles behind Zayn’s head. Zayn
wastes no time; teasingly licking a stripe against Louis’s rim, pushing in
slightly. Louis flinches, his hands grabbing at the covers below him tightly.
Zayn smiles wickedly as he pushes his tongue in all at once, his hands gripping
Louis’ hips to keep him down. One of Louis’ hands flies down to grip tightly at
the older boys hair; pushing his tongue further in. He starts to fuck Louis
with his tongue; relishing in the sounds Louis makes as he squirms above him.
He adds a finger along with his tongue which causes Louis’ thighs to quiver and
the grip on his hair to tighten. He arches his finger inside of him, moaning
when Louis pulls roughly at his hair. “Please.” Louis whispers, a chill running
down his spine after. Zayn takes out his tongue and smiles sweetly at Louis.
“Please what,babe.” He says, kissing the underside of his arse, “Tell me what
you want.”
“Fuck me.” Louis whimpers, his hips straining against Zayn’s grasp. Zayn hums,
dipping his tongue back inside of Louis. The younger boy squeaks in surprise as
his whole body tenses. “Zayn. Fuck me, now.” Louis demands with the slightest
tremor to his voice.
“Fine, bossy.” Zayn mumbles as he sits up. He pulls off his boxers, opening his
drawer in the side table, pulling on a half empty bottle of lube and a condom.
Louis spreads his legs, his feet flat against the soft surface of the mattress.
Zayn makes quick work of pulling on the condom and lubing himself. He gently
smears lube around Louis’ rim before he lines his dick up with it. Without any
pretense, he guides himself in, his other hand buried in Louis’ soft hair.
Louis lets out a sob when Zayn finally bottoms out, his nails digging into the
skin of Zayn’s back. Zayn nearly blacks out with how good Louis feels below
him. He was impossibly tight to the point where it almost hurt. Zayn buries his
head in the crook of Louis’ neck as he pulls out, pushing himself back in
roughly. Louis yelps at that, his ankles hooking behind Zayn’s lower back as he
brings the older boy closer to him, his nails digging even harder into his
back. Zayn bites harshly into the meat of Louis’ neck as he continues to pound
into him, the bed creaking with the force of it.
“D-Don’t stop.” Louis moans loudly, head thrown back in pleasure. Zayn smiles
wickedly, forcing his tongue into the younger boy’s mouth. Zayn grabs ahold of
his hips, gripping tightly as he rams into Louis harder, the headboard tapping
against the wall as he does so. Louis squeaks involuntarily when Zayn hits his
prostate in just the right angle, sending the boy’s mind in dizzying circles.
Tears begin to form at the corners of his eyes as the familiar pull in his
lower abdomen becomes stronger.
“I’m gonna’ cum.” Louis mumbles against Zayn’s shoulder, his cheeks flushed.
Zayn grunts in response, grabbing ahold of his thigh. It doesn’t take long for
Louis’ to come after that, surprising him after a particularly hard thrust from
Zayn. He comes with a loud shout, his lifting off the bed in a painful looking
arch. Zayn groans against Louis’ parted lips as he comes, spilling into the
condom. He kisses Louis softly as he pulls out of him, rolling onto his back.
He takes off the condom, tying it off and throwing it somewhere near the bin.
He looks at Louis, throwing his arm around his smaller boy’s shoulders.
“That was good.” Louis purrs into the side of Zayn’s neck, curling closer to
his big brother. Zayn hums in agreement.
“It was, maybe we could do it again sometime,” Zayn suggest, pinching Louis’
bum, “our little secret.” Louis sighs, his eyes drooping with sleepiness.
“Yea, our little secret.”
End Notes
     Thanks for reading!
     Comments (good and bad) are accepted
     Kudos are appreciated!
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