
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/3584148.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Big_Hero_6_(2014)
  Relationship:
      Hiro_Hamada/Tadashi_Hamada
  Character:
      Hiro_Hamada, Tadashi_Hamada, Aunt_Cass_(Mentioned)
  Additional Tags:
      First_Time_Blow_Jobs, PWP, Sibling_Incest, I'm_Not_Ashamed, ok, maybe_a
      little, Hiro_is_whatever_age_you_want_him_to_be, I_don't_specify, But_I
      put_the_warning_anyway, Just_to_be_safe, This_is_not_how_you_tag, oh
      well, There_is_literally_zero_plot_here
  Series:
      Part 2 of Porn_for_Porn's_Sake
  Stats:
      Published: 2015-03-21 Words: 2628
****** Today, Something New ******
by a_noni_mouse_(Blargnaught)
Summary
     Aunt Cass is away visiting relatives for a few days and Hiro wants to
     try something new with his big brother.
     Written for #46 Sexual Themes Challenge.
Notes
     I wrote this during finals week last semester (writing porn is a
     great way to de-stress, who knew?) and I've edited it about sixty
     kajillion times already. That being said, I'm not a very good writer,
     so I apologize for that in advance....but, maybe someone will get a
     kick out of this? I had fun writing it, anyway.
Today is a good day; Today, rule Number Ten (no fooling around while Aunt Cass
is home) does not apply. Aunt Cass is out of town visiting some cousins,
leaving Hiro and Tadashi in charge of the bakery. They had both begged out of
going with her, claiming research and deadlines and time restraints; They
weren’t lying- they both need to turn in their end of semester projects pretty
soon or face dire consequences to their grades-but right now, with Tadashi’s
lips wandering down his throat and Hiro’s fingers fumbling for the button of
his brother’s jeans, mechanical parts and chemical solvents are the furthest
things from their minds.
Tadashi’s hands slip under his shirt, whispering over every rib as he hikes the
material up under Hiro’s armpits. His teeth graze the delicate skin at his
pulse. Hiro shivers and whimpers and feels Tadashi’s breathing stutter against
his neck. He wishes Tadashi would bite him- the harder the better, sink his
teeth into the muscle where his neck meets his shoulder and Hiro moans just
thinking about it. But of course, that will never happen. That would be
breaking rule number sixty kajillion, or whatever- no marks on Hiro. (The
reverse isn’t true, of course; Aunt Cass thinks Tadashi has a girlfriend or
something, so Hiro can leave all of the marks he wants. Or he would if Tadashi
even liked that kind of stuff. But he doesn’t so Hiro’s biting fetish remains
unsatisfied…for now.)
His shaking fingers finally manage to push the stupid tricky button through the
button hole and he may or may not give a victory shout as he shoves Tadashi’s
jeans over the swell of his ass. His boxers half go with them but the front
catches on Tadashi’s erection and Hiro’s not at a good angle to push them down
the rest of the way. Tadashi laughs, kissing back up the other side of his neck
to his ear where he runs his teeth feather-light over the shell. Hiro twitches
away because he doesn’t want to cum at the heavy petting stage like their first
couple of times together. His ears are sensitive, damnit, and Tadashi knows
that.
“Someone’s eager.” His brother mumbles. His voice is pitched lower than usual
and raspy with arousal. “Aunt Cass won’t be back for three days. We have time.”
It’s true…Aunt Cass had only left a few hour ago and they have the whole long
weekend to do whatever they want (within the purview of Tadashi’s stupid rules,
of course)but Hiro has a plan and that plan involves getting Tadashi out of his
pants first. Surprisingly- and probably because it’s not very comfortable-
Tadashi obliges by pushing his jeans and underwear further down his hips before
turning his attention back to Hiro, palming him through his cargo shorts with
one hand and pinching lightly at a nipple with the other. He moans, catching
Tadashi’s self-satisfied grin as he kisses down Hiro’s chest. He can see his
brother’s cock bobbing between his legs, hard and curved and flushed with
blood. He reaches forward and takes it in hand as best he can, reveling in the
firmness, the heat, the silky glide of the skin beneath his fingers. Tadashi
rocks forward into his grip and his fingers pinch a little harder. His mouth is
suddenly at Hiro’s ear again so Hiro can hear his harsh swallow and the way he
breaths sharply through his nose. “Hiro…” he whispers. He sounds so needy and
Hiro can’t stop himself from grinding up into Tadashi’s palm. His wrist is
twisted at an awkward angle but he ignores the dull ache and keeps stoking
Tadashi’s cock because those noises Tadashi keeps making? Those are going to
fuel his fantasies forever.
“Tadashi….”Hiro starts and it is now or never…Tadashi pulls back a little to
look at him in askance as Hiro takes a deep breath but the words stick in his
throat. “Can I…” he starts again, but stops, heat rising to his face. He's more
flustered than he had thought he would be. How do you ask your big brother if
you can suck him off? They don’t teach this stuff in high school (probably for
good reason) and what if Tadashi says no and this moment is ruined? Tadashi has
a million and one rules that they follow and while he is always more than happy
to do whatever Hiro needs to get off- within reason- he has always been
skittish about Hiro returning the favor. Hiro licks his lips nervously. It’s
like a crossroads- he can either tell Tadashi to forget it and go back to what
they were doing, or he can ask to try something new and risk getting shut down
completely. “I want…” the words stutter to a halt in his mouth and he makes a
small noise of dissatisfaction I. Want. To. Suck. Your. Dick. shouldn’t be that
hard to say, but he can’t quite spit it out.
“Hiro?” Tadashi is hovering above him, propped on his elbow, close enough to
kiss but far enough for breathing room. His eyes are hazy with lust and
concern, pupils blown wide, the brown a thin ring around a pool of black. Hiro
feels his cock twitch because oh God that look should be illegal.
Tadashi tries for a smile but it’s a little crooked. Uncertain. “Do you want to
stop?” He asks. Hiro blinks, shaking his head. That is the exact opposite of
what he wants, but Tadashi leans back as if to move away anyway, gently
removing Hiro’s hand from his cock. Hiro scrambles up after him, kisses him so
hard their teeth clack together. He pushes into Tadashi’s lap and they both tip
backwards with the force of his enthusiasm. “Ok, no stopping, I get it.”
Tadashi mutters between kisses. “Then what’s wrong?” His hands slide up to
Hiro’s hips but before he can get a good grip Hiro is sliding out of his lap
because it is now or never. Tadashi is left grabbing at air for a moment like
he isn’t quite sure why Hiro isn’t in his lap anymore. He makes a noise of
disappointed confusion that dies a strangled death when Hiro sinks to his knees
between his brother’s thighs. From this angle Tadashi’s cock is kind of
intimidating, but Hiro is already wetting his lips because he read somewhere
that that is a good idea and oh wow, he’s really going to do this. Deep
breaths.
What if Tadashi doesn’t like it?
What if he’s really, really bad at it?
Hiro strokes his brother a couple of times, fast and maybe a little too rough,
gathering up his nerves because by god, he is going to give Tadashi the best
damn blowjob ever. Period. Yeah. Great.
He runs his lips up the underside of Tadashi’s penis and this close he can
smell his brother’s arousal, a heady mix of the soap sitting in their bathroom
and sweat and warmth and it’s just so Tadashi, but with the added edge of sex.
He breaths deeply, memorizes this smell in case he never gets this chance again
and yeah, this is going to be one of his new favorite things. He flicks his
tongue out when he gets to the head and tastes salt and then a hand is in his
hair, gently pulling his head back so that he is looking Tadashi in the face.
“-oh.” Tadashi’s voice breaks awkwardly, and for a moment his eyes are trained
on Hiro’s lips. Hunger and something like guilt war on his face. “You don’t
have to do that, c’mon.” He says, tugging carefully to indicate that his
brother should rejoin him on the bed. Hiro resists, turning his head aside to
disentangle the fingers.
“I want to.” He says. He runs his thumb over the head of Tadashi’s cock and
presses at the base where the swell of the glands taper off to the shaft.
Tadashi’s hips twitch and he licks his lips. “I never…you never let me get you
off. It’s always about me and I…” almost lost you in that fire could still lose
you some other way wouldn’t have this chance otherwise don’t think I could live
without you want to do this because I love you, Oni-san but he doesn’t say any
of those things. He’s pretty sure Tadashi knows anyway. His brother still looks
torn between stopping Hiro and letting him suck him off, so Hiro holds his gaze
and leans forward, very slowly, and wraps his lips around the head of Tadashi’s
penis, using his tongue to swipe that spot instead of his thumb. He can see the
exact moment Tadashi says ‘fuck it’ and yes, victory for Hiro Hamada!
Licking Tadashi’s cock doesn’t taste that much different than licking his neck-
skin and a little bit of salt- but the texture is new. Hiro explores the
sensation, pulling as much of the shaft into his mouth as he can handle and
letting his tongue wander, pressing flat against the underside, rubbing the
thick vein, dragging over the spongy head again as he pulls back. He lets the
tip of his tongue dip into the slit. The salty taste is stronger there and
Tadashi makes a mewling noise in the back of his throat so Hiro does it again
before sliding back down the shaft.
“Here…” Tadashi takes his hand (his fingers are trembling, Hiro notes with smug
satisfaction) and wraps it around the part of his shaft that Hiro’s mouth can’t
take. His other hand is back in Hiro’s hair, gently guiding his head. “Stroke
the shaft while you move your head like- yeah, like that, that’s it you’re
doing good.” Hiro does as he is told, and it’s a little more difficult because
now he has to coordinate the motion of his hand and his tongue and his head,
but he falls into a rhythm and Tadashi continues to mutter praise and
encouragement. His hand remains cupping the back of Hiro’s skull, occasionally
adding gentle pressure to encourage Hiro to take just a little bit more of him
into his mouth but never forcing.
It doesn’t take long for Hiro’s jaw to start aching, so he concentrates on the
smooth drag of skin over his tongue, the soft give of the head between his lips
and the way Tadashi’s thigh muscles twitch and jump under his free hand. He can
feel saliva gathering at the corners of his mouth and running down his chin and
he resists the urge to reach up and wipe it away.
After a minute he chances a break in concentration to glance at his brother’s
face. Tadashi’s gaze is laser focused on Hiro. It sends an electric thrill down
his spine and an explosion of heat in his gut and he’s so hard. His unoccupied
hand leaves Tadashi’s leg and fumbles with the zipper of his cargo shorts. He
fishes his erection out of his boxers and he moans around Tadashi’s cock as he
strokes himself in time with his other hand. Tadashi’s fingers tighten
spastically in his hair for a moment and he breaths “Hiro…” like a prayer.
“God, Hiro, you’re doing so well, just like that, you’re such a fast learner.”
Hiro wants to stroke himself faster but doesn’t want to risk messing up his
pace on his brother’s cock but he’s just there and needs a little more…
“Hiro” Tadashi says again, more urgently. His fingers are tugging at his hair
again, trying to move his head back. Hiro regretfully lets go of his own cock
to knock Tadashi’s hand away. His brother tries again, groaning “Hiro I’m about
to cum, just…” Hiro knocks his hand away a second time because he said he’d do
this and he will. When he bobs his head up this time he lets his tongue dip
briefly back into the slit, since Tadashi seemed to like it so much the first
time and suddenly his mouth is filling with thick, bitter liquid. Tadashi’s
fingers tighten in his hair to the point of pain and he’s groaning, low and
long and from the back of his throat and Hiro is going to be jerking off to
this moment for the rest of his life. He tries to catch all of the semen in his
mouth but he doesn’t really succeed. A lot of it slides down his chin to mingle
with his saliva and drips onto his shirt. He can even feel a bit sliding down
his neck which, ok, that’s sort of gross. He swallows what he can and tries not
to wince at the bitter after taste that clings to the back of his throat.
Tadashi’s fingers finally loosen their grip and Hiro pulls off his brother’s
cock with a wet pop. He looks at Tadashi and Tadashi looks at him. His
brother’s eyes are glazed over and his lips are parted just a little. His
cheeks are flushed bright red and his breath is stuttering out in little pants
that are far too appealing. He looks so completely wrecked that Hiro feels a
warm swell of pride balloon in his chest and yes, this is easily the best idea
he’s ever had.
His neglected cock aches, so he takes himself in hand again and runs his thumb
through the pre-cum leaking generously from the head. Tadashi’s eyes zero in on
the movement. Hiro sighs and strokes himself faster because yes, that focus is
still really, really hot.
“Hiro…” Tadashi says and even his voice sounds wrecked. He reaches down and
this time Hiro lets him pull him up off the floor and into his lap. He doesn’t
seem to care that his spunk is still dripping from Hiro’s lips as he mashes
their mouths together and takes Hiro’s erection in hand. Hiro’s so hard and
Tadashi’s calluses catch his skin in that perfect way that has Hiro whimpering
as he orgasms in one, two, three strokes. He shudders against his brother,
moaning his name into his mouth over and over in a high, breathy voice,
clinging to his broad shoulders as the waves of pleasure crashing through his
body slowly demure into a warm ripple. Tadashi’s hand only slows down when the
pleasure begins to melt into pain and oversensitivity. Hiro clings and pants
and shivers, breathing in the scent of sweat and sex and Tadashi, riding the
blissful high of satisfied hormones. He can’t even bring himself to care that
he has to do laundry now because his fly and shirt hem are slick with cum.
When Tadashi pulls back there is a translucent string of semen-saliva hanging
between their lips and if it was anyone but Tadashi Hiro thinks it might have
made him kind of nautious.
“Where-“ Tadashi has to clear his throat before he can continue “What brought
that on?” Hiro has become a boneless puddle in his lap enjoying the afterglow,
so Tadashi carefully re-arranges them so that they are lying intertwined on the
bed.
“I got tired of hogging all the orgasms.” Hiro mutters sleepily. Laundry can
wait until later. Tadashi is warm and comfortable and naps with his lover are
almost as great as sex. He feels Tadashi’s finger run through the mess drying
on his chin and groans. His brother laughs and shifts away from him, ignoring
Hiro’s muttered protests. “Stay here, I’ll get you a rag.” He says, dropping a
kiss onto Hiro’s forehead and gently ruffling his hair. Hiro mutters again in
grudging acquiescence. He watches Tadashi’s bare ass swing all the way to the
bathroom before he closes his eyes-just for a minute!- and he is asleep before
Tasashi gets back to the bed.
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