
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2649728.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      弱虫ペダル_|_Yowamushi_Pedal
  Relationship:
      Shinkai_Hayato/Shinkai_Yuuto
  Character:
      Shinkai_Hayato, Shinkai_Yuuto
  Additional Tags:
      Anal_Sex, Anal_Fingering, Incest
  Stats:
      Published: 2014-11-21 Words: 2755
****** The Sacred and Profane ******
by orphan_account
Summary
     Yuuto had gotten cake and his fork is in his mouth, when a girl that
     looks about his aniki's age walks by their table. Hayato glances at
     her, and then doesn't stop until she's out the door. The bit of cake
     in Yuuto's mouth suddenly tastes like sand.
Notes
     recently descended from the 8th layer of yuhaya hell to the 9th
See the end of the work for more notes
It's when Yuuto notices his aniki's gaze linger on a girl for a little too
long. They are at the fast food joint his aniki usually hangs out at with the
rest of his team. Yuuto had gotten cake and his fork is in his mouth, when a
girl that looks about his aniki's age walks by their table. Hayato glances at
her, and then doesn't stop until she's out the door. The bit of cake in Yuuto's
mouth suddenly tastes like sand.

Hayato looks back at his chocobanana and his mouth is full when he looks at
Yuuto.
"You okay?" he asks, because he notices that Yuuto's just been staring at him
with his fork in his mouth this whole time.

Yuuto blinks rapidly a few times, takes the fork from his mouth.
"Mmhm," is all he says and he digs it back into his cake. He feels like a
child. That girl was taller than him and was wearing a sweater that draped off
her shoulders and a miniskirt. Yuuto was wearing a hoodie with a bunny on it
and boy shorts and he suddenly felt like he was being babysat.

He shoves cake into his mouth and chews angrily. He needs to up his game. And
he can start by not getting cake for lunch. Only kids like cake.
===============================================================================


Yuuto leaves in a different direction when school is let out on Thursday.
Hayato's coming back for the weekend and he doesn't want to look like a little
kid to him anymore. He heads downtown.

When Yuuto comes back, he hurriedly goes to his room to don the outfit he's
bought. It's an oversized sweater and a miniskirt, just like the outfit that
girl had been wearing. When he realizes it looks absolutely ridiculous to wear
his boxers under the skirt, he takes them off. 

Yuuto smiles and sits on the edge of his bed. He feels super cute. He's got to
buy some panties or something tomorrow though. And then he can wear the outfit
for his aniki when he comes back. 

Yuuto lies back on his bed, feeling tired but accomplished. Aniki's going to be
so impressed, he thinks to himself before he starts drifting off.

Hayato gets off his bike in front of the Shinkai residence. He was told that
his class tomorrow would be cancelled, so he decided he'd come home early and
surprise everyone, especially Yuuto. He had looked mildly upset when they had
lunch together the last weekend, and he wondered if it had anything to do with
him checking out that girl. Either way, Hayato wanted to make it up to him. On
the bike trip home, he'd stopped at a convenience store and bought him a little
cake.

Hayato enters the house and it's very quiet. He knows that at this time both
his parents are still at work, but he can't detect a trace of Yuuto. He glances
at the shoe rack and Yuuto's shoes are still there, so he's still home.

After taking his shoes off, Hayato calls out "Yuuto?" but there's no reply.
With the bag with the cake in it in hand, he curiously goes upstairs.

Yuuto's bedroom door is closed, and Hayato already suspects the obvious so he
turns the knob gently and quietly.

He opens the door and freezes.

Yuuto is asleep diagonal on his bed, like he didn't mean to fall asleep there.
He's wearing an effeminate-looking sweater that Hayato doesn't think he's ever
seen before, and a miniskirt that is DEFINITELY new. The skirt is riding up a
little and he can tell Yuuto isn't wearing anything under it.

Hayato sets the cake on Yuuto's sidetable drawer and slowly goes to nudge his
little brother awake.

Yuuto stirs and his eyes crack open into slits, that once register who's
standing before him, widen.

"Aniki! You're here early!" Yuuto says in surprise, sitting up and rubbing his
eye.

Hayato sits on the edge of the bed.
"I thought I'd surprise you. But looks like I was in for a surprise myself.
Your new clothes are cute," he says.

Yuuto stops rubbing his eyes when he realizes he's still wearing his new
outfit. He feels kind of bummed. He wanted to first show it to his aniki in a
better way, not being waken up by him while grossly wearing it in bed.

"Thanks," Yuuto mumbles, and notices Hayato reaching towards his skirt. He
stiffens but Hayato just grabs the hem and gives a futile tug down.

"This is too short. You can wear what you want but I don't like the idea of
random men on the streets ogling at you in this," Hayato says, his hand still
tugging at the fabric to get the message across, but all Yuuto feels is the
ghost of his hand dangerously close to his thighs and crotch.

Yuuto pouts, "You were okay with ogling at that girl at the cafe though."

Shinkai's eyelids lower like he knew that that was going to be brought up. "Why
does that bother you? Is that why you went out and bought a similar outfit?" he
asks, taking his hand back. Yuuto feels a little disappointed.

Yuuto doesn't want to make eye contact, "You were having lunch with me, so you
should just pay attention to me...I thought, maybe you thought I was too
childish so...this outfit...since you liked it on the girl..." he trails off
but Hayato gets the picture.

"Well I'm here with you now, and you're wearing this. You've got my attention,"
Hayato says. Yuuto is blushing and can't look away from Hayato.

"What kind of attention did you want from me?" Hayato asks when Yuuto says
nothing.

Yuuto is playing with the hem of his skirt, but looks up at Hayato and through
his long eyelashes his pupils are already dilated.

"Was that girl at the restaurant attractive to you? Did you want to have sex
with her?" Yuuto asks with raw innocence and a little bit of hopelessness.

Shinkai blinks. He's not sure what to say. 

"She was good looking I guess, but...I don't know about having sex with her,"
he says finally, and Yuuto has his hands pressed against his chest now.

"How about me?" Yuuto demands.

Hayato sputters, "Yuuto, I already told you your new clothes are cute. You're
my cute little brother. Don't worry."

Yuuto is unblinking, "And what about sex."

Hayato's eyes widen, and suddenly he's aware that Yuuto's sitting on his lap in
this skirt with nothing underneath. He can feel the heat between his legs
radiating and it's going straight to his own dick.

Truthfully, Hayato had had the occasional perverted thought about his brother.
Just due to his cute style of clothing, full lips, and his clingy brother
complex personality, it was impossible for Hayato not to. It had always made
him feel a little guilty.

"Look, Yuuto, you're a cute little brother. Really. Maybe you should get off
me; I got you a cake. It's got strawberries, just like how you-"

"'Cause I wanna have sex with aniki"

Hayato freezes. Shit.

Without warning, Yuuto starts palming at Hayato's bulge in his pants. Hayato
didn't even realize he was so hard and now he can't move because he can't
believe this is happening.

"If you don't wanna..." Yuuto says but it seems he already knows his aniki is
teetering on the edge of if this was a good idea or not.

Yuuto leans over to reach under his pillow and pulls out lube. Hayato's eyes
widen.

"I've been practising," Yuuto says with a hint of pride. He opens it but looks
at his brother for a moment, like he's waiting for him to tell him no. When
Hayato says nothing but just stares, Yuuto feels like it's okay to continue.

He squirts a liberal amount onto his fingers and spreads his legs over his
brother's lap a little more, reaching behind. Hayato can tell when he's put it
inside by he shuts his eyes and whimpers.

Hayato sits up a little when his brotherly instincts take over for a moment,
"Easy. You don't wanna hurt yourself. I can do it-" and he realizes what he's
saying and what he's talking about.

"You wanna finger my ass, aniki?" Yuuto says with a smile, "It's ok, I wanna
show you I can do it."

Hayato is hard as fuck now and he's not sure why he's just been sitting here
baffled when his cute little brother that he fantasized about, was now
preparing his own ass for him.

Yuuto starts "You said you don't want men ogling at me but what if that's what
I want? I let them ogle at me and then I go with them to a hotel and-"

"Yuuto," Hayato says firmly, and something is smoldering in his eyes, "don't
you dare."

Yuuto has three fingers inside him now, "Then make me yours. Take me
everywhere, so men that have perverted thoughts about me won't dare to try to
realize them."

Hayato knows his brother is completely bluffing out of his ass about fucking
strangers and it's all a trick to get Hayato jealous, and it's totally working.

Hayato reaches around to grab his little brother's butt, "You watch your mouth
around your aniki."

Yuuto is apprehended but also a bit excited, "I said bad things; punish me."

Hayato runs his hands up under Yuuto's sweater to rub against his little pink
nipples and pulls it over his head. Yuuto is already undoing Hayato's flying
and trying to pull down his pants with his boxers.

When Hayato's throbbing erection is free and out in open air, Yuuto gets the
lube. He slicks it up and Hayato resists the urge to ask for Yuuto to just jerk
him off right here and now.

Yuuto pushes his aniki back on the bed. He lifts his skirt and positions his
entrance against the head of Hayato's dick.

Yuuto lowers himself and gasps when he feels himself being stretched, filling
him. "Aniki," he sighs, as he sinks onto his brother's cock and finally fully
sheathes it in his ass.

He sits there, letting himself adjust.

He wiggles a little, and raises himself and falls back onto his dick. He
whimpers. And repeats.

Yuuto rides his dick. Hayato watches his dick disappear again and again into
the smaller body of his little brother. Clearly he's never done this before and
his rise and fall is little slow. Hayato also doubts he's hitting his prostate.

"Yuuto, do you want me to-", but Yuuto shakes his head, "I wanna make aniki
feel good by myself."

It feels good but if Hayato could be honest, the slow pace Yuuto is going at is
doing more teasing and torturing than anything, and he knows he'd be into that
possibly at another point in time, but not right now. Especially when his boner
is weeping so hard. He's also pretty sure Yuuto doesn't feel even half as good
as Hayato could make him.

Hayato starts to sit up, and Yuuto looks at him quizzically through his
halflidded eyes. Hayato caresses his waist, drawing small circles into his
hipbone with his thumbs. Yuuto stills.

Hayato levels a gaze at him, "Yuuto," he murmurs lowly, and he can feel his
little brother shiver through their connected bodies, "I want you to feel good
too."

He leans so he can nip at Yuuto's ear, at which he jumps a little and whimpers,
but Hayato whispers into it, "I want to fuck you."

Yuuto makes a noise and then goes red. Hayato goes back to looking at him,
"You'll let me, right? Pretty please, Yuuto-kun?"

Yuuto suddenly seems way more aroused (as it should've been) and he nods, still
blushing. Hayato kisses him, and lowers him backwards to lie on the bed.

Hayato, still inside him, experimentally moves slowly inside him. Yuuto blinks.

"Aniki? What are you doing?" Yuuto asks under him as his brother slowly prods
inside him.

Hayato winks, "Looking for something."

Yuuto makes a confused face but if this is what aniki wants to do that's fine.
The fact that it's his aniki moving dick inside his ass is also really hot and
he could get off just from-

"Ahn!", Yuuto hears himself yelp. And then wonders why. He looks to his aniki
for an answer, but his brother is just smiling coyly down at him.

Hayato thrusts once inside him again, a little harder this time, and Yuuto
moans high pitched again. Oh, shit. Suddenly his aniki's dick feels so much
better inside him. Like he's hitting something that makes him feel good
everywhere.

"Aniki," Yuuto pants, not knowing what to do. This felt really good. He didn't
know it felt so good for the receiving end.

Hayato grabs his legs and hook his hands under his knees to push them up
against Yuuto, giving Hayato better access and a sure as hell better fucking
view.

The feeling of his aniki's strong hands on his smaller legs goes straight to
his already dripping dick.

Hayato starts slowly thrusting, and Yuuto grips the sheets.

"Go faster," Yuuto says quietly. Hayato built him up and he should own up to it
now.

Hayato chuckles low and deep at his little brother, but complies and goes
faster. It's starting to feel so good. Like a little pressure inside Yuuto is
building up. 

Yuuto is starting to make little whimpering noises that Hayato finds cute, but
he wants a little more than that.

Hayato suddenly grinds down into Yuuto's ass, directly at his prostate, and
Yuuto gasps and shuts his eyes, and moans loud. His hand flies onto his own
mouth, like he's embarrassed at the sound he just made. Hayato keeps grinding
into him and Yuuto is clearly trying to stifle the sounds that are bubbling in
his throat, muffling the choked sounds that escape.

Hayato unhands one of Yuuto's legs to grab his hand in front of his mouth by
the wrist and pin it to the bed. As soon as it's away and his noises are
muffled no more Yuuto turns his head to look away in embarrassment.

"I want to hear you," Hayato says, above Yuuto's small moans and gasps he's
still trying to keep down, biting his lip hard.

"Please," he says, and moves his hand to wrap around Yuuto's dick that's
forming a small puddle in the dip of his stomach. Yuuto's eyes open at the
sensation and he looks down at his aniki fucking his ass and now about to jerk
him off.

Hayato spreads some of the precum on his dick and starts pumping in time with
his thrusts. Yuuto gasps loudly and is overwhelmed with sensation. The noises
he was keeping back come out in full.

"Aniki!" he chokes out while panting, "It's so much!", and tries to clumsily
move his hand against his brother's arm that's jerking him off but he only has
enough control to barely hold his bicep as he pumps his dick.

"Are you close?" Hayato asks, quickening his thrusts and his hand.

Yuuto is starting to thrash, "Aniki, I'm going to explode!"

Hayato leans down to kiss his brother. He swallows Yuuto's growing moans and
when he breaks the kiss he says, a little strained, "Gonna cum too."

Hayato starts thrusting quick and deep into his brother, his hand movements
growing erratic.

He sucks in a breath, "A-ah! I'm cumm- ah! Yuuto!", shooting his seed inside
his brother. He continues thrusting to milk it out, letting out a long groan.
His hand stills for a moment on his brother's dick.

Yuuto watches with halflidded eyes and tries to grasp that he's just been
filled with his cool mature older brother's cum. Yuuto's breath is coming out
in short gasps and he's starting to tremble, "Aniki! Aniki, I'm-! I'm going to
too!!"

Hayato pumps Yuuto a total of two more times and the trembling boy arches his
back and lets out a high pitched yelp, his seed shooting out and leaving ropes
on his body and his brother's hand. 

Yuuto shakes for a moment longer, and then reverts to jelly under his brother,
breathing hard.

Hayato, being older and responsible, pulls out and takes a kleenex from the
sidetable and cleans up his little brother's stomach. When he lies down next to
Yuuto, his little brother snuggles into the warmth of his chest.

Hayato sighs contentedly, "Seriously though, I bought you cake."
Yuuto smiles because he loves cake.
End Notes
     i think this is the first yuhaya on ao3 that explicitly has the dick
     in the butt so you're welcome
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