
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2785376.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Big_Hero_6_(2014)
  Relationship:
      Hiro_Hamada/Tadashi_Hamada
  Character:
      Hiro_Hamada, Tadashi_Hamada
  Additional Tags:
      Masturbation, Trans_Male_Character, Implied/Referenced_Underage_Sex,
      Shameless_Smut, trans_boy!Hiro, sexy!tadashi, I_Don't_Even_Know
  Stats:
      Published: 2014-12-16 Words: 1593
****** A Guide to Exploring Your Desire ******
by InkStainsOnMyHands
Summary
     Hiro comes home throbbing. Since his brother had walked into their
     room that morning, dripping wet and wearing only a loose towel around
     his middle, the space between his legs ached terribly. He silently
     blames Tadashi, and his utterly perfect abdominal muscles, for the
     day-long distraction he had suffered through, even though he knows
     that the image of his half-naked brother should not have had this
     kind of effect on him.
Notes
     Guys, I don't even know. Just - don't judge me okay. Please excuse
     the weird present-tense this was written in. This was originally just
     supposed to be a detailed head canon that ran away from me.
Hiro comes home throbbing. Since his brother had walked into their room that
morning, dripping wet and wearing only a loose towel around his middle, the
space between his legs ached terribly. He silently blames Tadashi, and his
utterly perfect abdominal muscles, for the day-long distraction he had suffered
through, even though he knows that the image of his half-naked brother should
not have had this kind of effect on him.
He doesn't even lock the door to their bedroom, much too impatient for polite
precaution. As soon as the door behind him closes with a soft click, he
immediately strips himself of his cargo shorts and soaking boxers. Normally, he
wouldn't do this in their bedroom. Normally, he would wait until he was in the
shower, where a locked door and the sounds of running water gave him enough
privacy to release his inhabitants. But, this wasn't a normal time.
Hiro is utterly frustrated in a way he had never been before. While he has had
urges to explore the changes puberty has horrifyingly brought about, they had
never been this strong before. In a haze of sexual fervor, his brain
brilliantly decides that relieving himself on Tadashi's bed would have the
desired effect, although what that effect was he had little clue.
He lays upon his brother's bed, using his pillows to comfort his head as he
settles himself on the familiar comforter. His hand boldly searches for the
spot just above his entrance that sends a quick jolt through his pelvis. He
uses his index finger to give the nub gentle, languid strokes, which sends a
rolling wave of soft pleasure to course through him. But, it isn't enough.
Hiro nearly whines from the continued dissatisfaction. He knows he needs
something, but he's unsure as to what that is. In a fit, he turns his head
sharply into his brother's pillow. The incredible smell of his shampoo, musky
and masculine, permeates through his nose. All at once, as though the very
lingering presence of his older brother could physically touch him, he feels an
electric shock of bliss radiate outwards from his center to his fingertips and
toes.
The epiphany is sudden and mortifying, but he decides to have a crisis about it
later when he isn't so charged with sensual energy. Instead, he allows his
brain to conjure the image of his brother's head between his legs. In his mind,
Tadashi gives his younger brother a knowing smirk, which betrays the
satisfaction he feels from knowing that it was him to make Hiro tremble with
unadulterated want. As Hiro’s fingers work over his nether regions, he imagines
his older brother using his tongue to trace exquisite patterns over his moist
flesh while he looks up at his younger brother with adoring eyes. It doesn't
take much more than a few more touches over his excited clit for the pleasure
to mount and mount until it crescendos beautifully. The levee breaks, and as
his orgasm quakes through him, a small gush of liquid escapes from him.
Hiro gasps. The bliss, much like his earlier frustration, was unlike anything
he had ever felt before. It was so strong and so forceful that it caused him to
bolt upright into a sitting position, even as his legs convulsed. Wave after
wave of pure ecstasy pulls him into an undertow of warm comfort, which was
enough to make him lethargic, but not unaware. With a deep shame, he stared at
the small puddle that formed between his spread legs. Had he really just - ?
Without thinking much further, too ashamed to analyze the fact that he may have
just urinated on his brother’s bed in the throes of passion, he jumps out of
bed and collects the soiled comforter. But, before Hiro could retrieve his
clothing and run down the stairs discretely, the door to his bedroom opens to
reveal the object of his desires.
A hot flash of embarrassment burns through him. He notices, far too acutely,
how Tadashi’s sweat-soaked, translucent-white workout shirt clings wonderfully
to his broad chest and how tightly his black bike shorts wrap around his
powerful legs. He doesn’t need to see himself to know that his cheeks are
painted blood-red. He quickly hides himself in the comforter in a vain attempt
at modesty.
Tadashi pulls the headphones out of his ears, music still audible in the
silence of the room. He glances over at his little brother. His eyebrow quirks
while he tilts his head slightly. “What are you doing with my sheets?” he asks
softly and without the accusation Hiro fearfully thought would be dripping from
his words.
Hiro begins to stammer on, but before he can even finish a sentence, Tadashi
walks towards him. He stops when he is but a step away from his little brother,
whose eyes are darting around the taller man in an attempt to look for an
escape route. Hiro assesses, to his dismay, that there is no way to escape his
brother, whose gaze has fallen to the discarded clothing on the floor.
Tadashi looks back up at Hiro. The softness in his eyes did not dissipate, but
the edges sharpen slightly. His mouth sets itself in the same knowing smirk
Hiro had previously fantasized about, which causes his center to tingle
pleasantly. Tadashi's head hovers over him, and somehow the action adds a level
of heat to their interaction.
"Were you - ?" he asks; an amusement lingers in his unspoken words.
Hiro, with no way out, comes clean with a nod of his head.
“In my bed? Why?” His words express his curiosity, but they also seem probing,
as though he were reaching for something.
Hiro bites his lip. He looks away from his brother. He racks his mind for some
sort of excuse, but his brain is still fogged from his afterglow, preventing
any productive thoughts from penetrating through.
"Were you thinking about me?" His elder brother’s question cuts through the
cloud.
Hiro’s awareness comes back to him sharply, making everything prickle nearly
painfully. He searches Tadashi’s face for any sign of malcontent in a panic,
but to his relief, he doesn’t appear angry or upset. In fact, he looks pleased.
Hiro’s eyes widen, and his mouth hangs agape. Did Tadashi -?
Tadashi reaches out and takes the blue comforter in his hands. He tugs on it
gently. “You don’t need to hide,” he nearly purrs, “Come out from the covers,
okay?”
Hiro holds on tighter to the covering. He could feel his cheeks flush even more
brilliantly. Even if Tadashi was able to deduce his prior actions, there was no
need for him to know about the wet spot.
Tadashi chuckles lightly. “It’s okay, I won't look if you don’t want me to, but
you need to get dressed so we can talk about this.”
“It’s not that, it’s just -” Hiro says indignantly, but can’t bring himself to
continue. He feels himself shake slightly.
“What is it? You can tell me.”
And Hiro feels like he truly can. His brother looks at him so kindly. Although
there is a sharpness to his expression, the hard lines don’t convey cruelty,
but an odd sense of accomplishment, like he took pride from Hiro’s pleasure.
From just the last few minutes alone, Hiro knew that, if anything, Tadashi
would at least act sympathetic to his plight rather than be judgmental.
Hiro unfolds himself from the fabric. Although he is nude from the waist down,
it’s the puddle of wetness that was now evident on Tadashi’s sheets that leaves
him feeling exposed.
Tadashi doesn’t say anything. There is a strange look in his eyes. The earlier
softness that Hiro had counted on is gone and replaced with something
predatory. Although Tadashi doesn’t look quite angry, his expression is
dangerous. Hiro feels a bubbling cauldron of dread boiling over in his stomach.
“I-I d-don’t know w-what happened, I just - and then,” Hiro stutters as he
tries to explain, cutting through the silence that grips his lungs in a vice
grip. Tadashi remains quiet, although his gaze flickers back and forth between
his younger brother and the bedspread. Hiro feels his fluttering heart beat
mercilessly against his ribcage. To alleviate the suffocating feeling his
brother’s unresponsiveness leaves him, he mutters, “I’m sorry, I didn’t mean to
wet your bed.”
Tadashi’s lips, once again, curve into a mockery of a smile. It’s enough to
make Hiro’s breath catch in his throat. The taller man tears the comforter from
his hands. He pulls the wet fabric near his nose before inhaling the scent of
Hiro’s gratification. Once the aroma seemingly fills his lungs to his
satisfaction, Tadashi bunches the comforter in his hands and tosses it on the
bed.
He takes the final step towards Hiro. He gently puts his hands on his shoulders
and gives a light push. Hiro stumbles back until the back of his knees hit the
edge of the bed, causing him to lose his balance and fall back onto the
mattress. Tadashi stalks over him, looking as though he were a wild animal
about to devour his prey.
Once he is fully suspended over his younger brother, he leans down to press his
lips against the shell of his ear. “You didn’t wet the bed, it’s called
‘squirting’” he assures with a low voice filled with nothing but absolute
desire, “That happens when someone is especially excited, and I’m going to make
you do it over and over again.”
 
Hiro shivered at the promise, wanting nothing but for Tadashi to fulfill it.
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