Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2696105.
  Rating:
      Explicit
  Archive Warning:
      Choose_Not_To_Use_Archive_Warnings, Underage
  Category:
      M/M
  Fandom:
      Hidashi_-_Fandom, Big_Hero_6_(2014)
  Relationship:
      Hiro_Hamada/Tadashi_Hamada
  Character:
      Hiro_Hamada, Tadashi_Hamada, Aunt_Cass
  Additional Tags:
      Sibling_Incest, Smut, Fluff, Lemon, Yaoi, Male_Slash, My_First_Fic/Worst
      Fic, Porn_Without_Plot
  Stats:
      Published: 2014-11-30 Chapters: 2/2 Words: 2812
****** Probably for Protective Purposes ******
by Gellie45
Summary
     Tadashi Hamada is noticing major differences within his younger
     brother As Hiro enters Puberty. Tadashi can't decide if he likes the
     changes or not.
Notes
     I'm new at this so I'm sorry if it's really badXD
     Constructive Criticism is APPRECIATED:D
***** Blush *****
His cheekbones were more sharp & handsome.
His chest, broader and muscular.
His body, more toned.
His height nearly exceeded Tadashi's own.
Hiro was growing up and Tadashi didn't like it.
It's not that Tadashi minded Hiro's adolescent look. It was that Tadashi liked
to appear like the stronger elder. Someone who looked like he could protect his
loved ones, especially Hiro. Though he was not competitive about it, Hiro
continued to grow as Tadashi didn't and he didn't like that.
"Wanna go to the café across the block with me?" Hiro asked, interrupting
Tadashi's thoughts.
Aunt Cass began to groan. "Why on Earth would you want to go to a café RIGHT
ACROSS THE STREET when you are currently standing in one that you get free
meals from?! Also, I hear that their food is disgusting."
"I'm going because it's new and there is nothing else on my agenda for today."
Hiro Responded with a cocky attitude. A cocky attitude that deserved ass
whoopings, that of course Hiro never receives. Aunt Cass just shrugged and
returned to serving customers.
"So... ya wanna go?" Hiro asked again, directing towards his brother. Tadashi
took a minute, he knew what he was going to say already, but he wanted to stall
time just to piss Hiro off. Or was it to see Hiro's begging face?
"Why not." Tadashi smirked, after a moment of 'making up his mind'.
As they walked, Tadashi couldn't keep his eyes off of his supposedly "younger"
brother. Tadashi noticed some similarities to the baby brother that once stood
before him. Like how Hiro still had a cocky grin on his face or that canyon of
a gap between his teeth (which Aunt Cass told him to get fixed but he refused
because he said it gave him 'character') Which it did, but more of a goofy one
than what Hiro was thinking of, whatever he was thinking of. That also brought
Tadashi new wonders. What did his brother think about? Robots? Inventions,
ideas? Girl crushes, boy crushes? Tadashi also noted that Hiro was never really
open about his sexuality with others. No one really minded that, except of
course Tadashi.
"Well, we're here Knuckles!" Hiro had always nicknamed Tadashi that because of
his tendency to clench his fists as he walked. Tadashi never really knew why he
did this, he just did. Maybe it was for protective purposes? Too bad that
didn't matter now, Hiro was just as strong as he was.
Atop the Café stood a sign that read: "Leeb's Nuts". Hiro couldn't suppress his
laughter. Tadashi grinned, more so towards his brother's squealing pig laughter
but also at the sign.
"I guess 'nuts' isn't the best abbreviation for donuts huh?" Tadashi joked.
"The interior looks nice." The elder brother stated as they walked into the
café.
"Yeah" Hiro agreed. Much nicer than Aunt Casses shop. This place makes hers
look like a dump! I guess she has some competition." Hiro joked.
"Nah" Tadashi argued. "It's the food that really matters!"
"Then let's try some!" Hiro bounced, obviously enthusiastic. They both ordered
glazed donuts. After one bite, they knew they were never returning to "Leeb's
Nuts" again.
"Jesus fucking Christ!" Hiro spat. "Are you sure 'nuts' was an abbreviation for
donuts? Or Leeb's ACTUAL NUTS?!" Tadashi laughed, standing close to his brother
as they walked home, his hands unconsciously clenched into fists. Probably for
protective purposes.
"Back so soon? How was the café?" Aunt Cass smirked as if she was already aware
of how dreadful her nephews tastebuds felt after eating the other café's food.
"It was terrible." Tadashi admitted.
"Yep figured that." Aunt Cass proudly stated, with a hint of 'I told you so' in
her voice.
After their little chats, the two brothers returned to their rooms. Their was a
bit of an awkward silence between them, until Tadashi finally spoke.
"So, uh... What's new?" Tadashi said, sounding as if he was questioning his own
question.
"Nothin' much, haven't had time to book myself in any botfights, hadn't had any
time for friends. Only inventions." Hiro sighed.
"Hey, friends as just as important as inventing, maybe even more so. Human
interaction is better than robotic." Tadashi appeared disappointed and a bit
sad for his brother.
"Kinda funny to hear that coming out of someone who created a robotic nurse for
me." Hiro smirked.
"Baymax isn't here to socialize with us Hiro, he's here to take care of us when
others can't." Tadashi was serious now, he didn't like people to try and prove
him wrongly. He just guessed that it was just one of his many flaws.
"Ok, ok. Chill dude, I wasn't trying to bash on your latest creation, I was
just messing with you." Tadashi then calmed himself and grinned, a grin that
Hiro loved to see. One that could put someone out of misery and into happiness.
At least that's how he felt when Tadashi smiled at him. Suddenly Hiro's cheeks
felt warm, he was blushing. The blush was very faint, as Tadashi didn't notice,
Right? But Hiro began to feel awkward in his current position. Why was he
blushing at his own brother? Especially if all he did was smile?
"Listen, I gotta work on upgrading... Uh something? Ok bye!" Hiro terribly
lied, with a worried face.
"Ok?" Tadashi answered curiously.
As he left Tadashi's room and into the work-room, he tried to shake off the
feeling he was feeling but he just couldn't. His "Pubescent mood-swings" (As
Baymax liked to call it) were acting up along with his hormones. Hiro thought
about the situation he was in. "Puberty isn't supposed to make
someone...someone lust for their brother! So why the fuck is this happening to
me?!" Hiro said in his mind.
While Hiro argued with his brain, Tadashi pondered as well. He thought about
what had just occured. "Hiro blushed at me." Tadashi said aloud.
***** Lust *****
Chapter Summary
     Hiro can't hold back his hidden feelings for Tadashi anymore.
Chapter Notes
     The story is COMPLETE
Tadashi heard a loud thud coming from the room beneath him. What in the world
is Hiro doing? Throwing bricks?! Tadashi was trying to keep concentrated on his
studying, a new test was coming up on robotic anatomy and he didn't want to get
a bad grade (Even though he knew that wasn't going to happen)
"Hand me the screw driver." Hiro commanded. Baymax obliged, handing Hiro the
tool. He was upgrading Baymax, hoping to extend the life of his battery before
recharging again. The task was difficult, but what made it even more impossible
was the fact that Hiro couldn't keep his brothers face out of his mind. Soon,
he stopped his work as he was dazed within his thoughts. He began to imagine
what Tadashi would look like undressed. All muscular and handsome...
"STOP!" A buzzing noise within Hiro's head told him that this was beyond wrong,
but another part of him said to go along with it to see what'll happen. He then
began to hear foot steps nearing towards the work-room. He knew it was Tadashi.
Quickly he pulled out the Futon mattress in the room (Thinking only of what
could be if his thoughts went according to plan) and pretended to be "Passed
out" on his working desk. Still thinking about Tadashi and his body,as his skin
began to feel hot, blindsighted to the fact that Baymax was still in the stance
of when he was being 'operated' on.
Tadashi walked into the work room, only to see his younger brother with his
face implanted into his working desk.
"You ok?" Tadashi asked, concerned.
Hiro lifted his head and stared head on at Tadashi. Eyes half lidded and
completely fogged with lust. Cheeks burning red as his hot skin could've been
mistaken for a terrible fever. Tadashi looked shocked, he could've sworn he was
dreaming, ...about his brother?
"H...Hiro?" Tadashi stuttered, but was suddenly interrupted by a huge, talking
marshmallow
"Baymax? What, why are you activated?"
"Hiro was upgrading my Battery LifeSpan." Baymax plainly responded.
Before Tadashi asked anymore questions to Baymax, he glanced at Hiro. The
closest thing Hiro resembled right now was a dog in heat. Hiro just stared at
Tadashi, looking needy for him as if he was sick and his brother was the cure.
"Baymax, scan Hiro." Tadashi commanded.
With a quick glance, Baymax responded. "Scan complete. Hiro appears to have no
physical injuries, but his hormonal level is very unstable. Common in male
adolescence. Diagnosis; Puberty."
So to sum it up, Hiro was going through one of his teenage mood swings?! Or was
he just horny? In Tadashi's mind he was blushing a deep red, but on the outside
he appeared confused. (Tadashi knew how to keep his true emotions inside) So
zoned out in thought, Tadashi nearly forgot that his hormonal brother was right
infront of him. Literally. While Tadashi was deep in thought, Hiro had leaned
closer towards his brother, unnoticed. Tadashi was about to speak up again, but
was interrupted once more, this time by Hiro's lips.
Hiro was kissing his own brother, the brother that had raised him, and Hiro
loved it. Tadashi couldn't believe how needy his brother really was or the fact
that he was kissing his own brother! He tried gasping for air but Hiro did not
permit it. Swirling his tounge inside Tadashi's mouth and locking lips with him
did not lighten Hiro's craving for Tadashi's body. As they kissed, Hiro began
to pull on Tadashi's shirt at an attept to take it off. At first Tadashi was
hesitant, restraining Hiro's hand from traveling any further. To this, Hiro
stopped kissing Tadashi, both gasping for air.
"Stop holding me back Tadashi. All these years I've only been able to fantasize
about what this could be like. I need this." Hiro said, trembling with lust
over his brother. Tadashi looked at his brother with wide eyes, seeing how much
Hiro really did need this and how much Tadashi secretly wanted this to happen
as well. He then let go of the grasp he had on his younger brother's arm,
letting hands run free and remove his clothing to reveal a very muscular form.
Hiro then planted small kisses all over Tadashi's stomach as a faint moan
escaped Tadashi's lips. Hiro smirked, feeling accomplished from making his
brother feel pleasure, then went back to working on his brothers body.
Suddenly, Tadashi pushed Hiro up towards his face and lured him into a heated
kiss. Tadashi now accepted what he was about to do, no going back. Hiro then
broke the kiss and began to unbuckle Tadashi's belt. Once his jeans were
removed, the only article of clothing holding Hiro away from Tadashi was the
thin black fabric of boxers, covering the part of Tadashi that Hiro craved.
Hiro then teased his brother by sucking at the fabric where a bulging manhood
could be detected underneath. Hiro looked into Tadashi's eyes hungrily,as the
friction driove his brother insane.
"You little bastard." Tadashi groaned, wanting more, so much more.
"Patience Tadashi." Hiro smirked. (While Secretly taking off Tadashi's boxers)
"You're one to talk!" Tadashi laughed, "You got me into this m- Ahh!" Suddenly
Tadashi was gasping and moaning. Hiro was sucking on Tadashi's cock, taking it
as far in his mouth as it would allow. Hiro was gagging on the organ with
pleasure. Tadashi thought Hiro was hurting himself so he shot him a look of
concern. Yet in reply, Hiro sucked even faster AND deeper on Tadashi's member
and winked at him, giving Tadashi reassurance as well as driving him crazy.
Hiro hummed with Tadashi's cock in his throat, the vibration tingling Tadashi
as he moaned. Suddenly Tadashi cluched his hands into Hiro's hair, as he arched
his back and gave one thrust into Hiro's mouth. Tadashi came within his
brother's mouth and Hiro was happy to swallow. The taste was unfamiliar, but it
wasn't a bad taste, especially when he remembered that it came from his
brother... Literally. Tadashi and Hiro both panted, eager for more.
Tadashi randomly began to hoist himself up and flip Hiro over so that he was
now on top. He preferred this position, it gave him a better view of his
brother and of his surroundings. With this, he realized that they were on a
futon couch that was already in the form of a bed. Had Hiro been expecting all
this to happen from the start? Was Tadashi really that predictable? Going back
into reality, he began to kiss Hiro. Taking in his lips and tounge in a sort of
tug-of-war, while passionately taking off all articles of clothing on him.
Tadashi began to touch Hiro's developing body, it was truly beautiful to see
his younger brother like this, as well as finally being able to touch him in
ways he only dreamed about. Hiro's stomach was surprisingly muscular and toned,
this was odd to be so fit for a 15 (And a 1/2) year old. Not that Tadashi
minded this, he found it quite sexy, actually. Slowly, Tadashi began to inch
towards Hiro's private area. Planting kisses on his lower stomach. Now Tadashi
was eye to 'eye' with Hiro's cock. What Tadashi saw shocked him, Hiro was huge!
For his age, he shouldn't have been that large. Tadashi felt a tinge of
jealousy, but dismissed it.
"Jeez Hiro!" Tadashi joked, "What in the world is Aunt Cass feeding you?!" Hiro
smiled in response. Instead of using his mouth the whole time, Tadashi decided
to use his hands on his brother. Pumping his member slowly in the beginning but
faster as time progressed. Hiro let out loud moans and grunts of passion as
Tadashi began to use his mouth as well as his hands. Tadashi had to admit, Hiro
tasted damn good. As he continued to suck, Hiro's moans only became louder and
filled with lust. While doing this, Tadashi glanced at Hiro, seeing his gaping
mouth moan and his cheeks flushed. Finally, with one quick pump, Hiro yelled
with pleasure as he came in Tadashi's hand (Luckly no one was nearby to hear
it). Tadashi then took his cum-filled hand and licked it clean.
"Tastes like candy." Tadashi joked. Sounding very sexual in his voice, a voice
that Hiro had never heard before but immediately adored.
"I want more!" Hiro whined. "I want to feel you inside me." That last sentence
sounded almost like a whisper or a purr, either way, to hear those kind of
words come from his little brothers mouth, drove Tadashi insane.
"Are you sure?" Tadashi asked, worried of potentially hurting his younger
brother.
"Yes I'm sure! Now fuck my brains out." Hiro said, as if it was an order.
Tadashi applied a liberal amount of lubricant onto his cock, before rubbing
himself against Hiro's opening. Both the brothers cheeks burned red at this.
Hiro began to moan, which made Tadashi extremely hard. Slowly, he entered his
brother. Hiro was so tight, it felt like the best feeling in the world for
Tadashi, but for Hiro... not so much.
"Agh!" Hiro squeaked at the wince of pain he felt. Tadashi would've stopped but
Hiro didn't give him any other sign to, so he didn't. Tadashi softly moaned as
he went in and out of his sibling. As time went by, Tadashi began to move
faster, hoping that Hiro didn't feel any pain (or could at least bear with it
for a bit longer). At first, all Tadashi heard were grunts of displeasure and
pain, but soon the sounds were of lust, moans and love.
"Ha-.. Harder." Hiro pleaded. Tadashi obliged, thrusting into his brother
deeper and harder than before. Happy to hear that his brother was enjoying this
as much as he was. To help cope, Tadashi began to touch Hiro's member. Rubbing
it. Stroking it, until it became hard. By now, Tadashi was thrusting into his
brother at full power. He was nearly positive that he was hitting Hiro's
prostate. Hiro gasped and moaned, before yelling Tadashi's names as he came
into his older brothers hand once more, and soon after Tadashi did too, with a
great thrust, deep into his little brother. Cum oozed out of Hiro's tight hole.
"Aww, look at the mess you made!" Hiro giggled. Tadashi leaned forward and
began to passionately kiss Hiro, tounge swirving inside. Tadashi then broke the
kiss to plant more on Hiro's shoulder, and promptly sucking on one particular
part of his neck. Hiro knew what Tadashi was trying to do. Yet Hiro allowed it,
he was proud that he was now owned by someone, especially owned by Tadashi.
Tadashi gave the hickey to Hiro out of love and to show that Hiro was his and
his only.
From that day on, things were different between the two siblings, yet all still
the same. The days were just as productive, but the nights weren't as quiet;)
Please drop_by_the_archive_and_comment to let the author know if you enjoyed
their work!