Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/12680991.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      僕のヒーローアカデミア_|_Boku_no_Hero_Academia_|_My_Hero_Academia
  Relationship:
      Amajiki_Tamaki/Kirishima_Eijirou
  Character:
      Amajiki_Tamaki, Kirishima_Eijirou
  Additional Tags:
      Plot_What_Plot/Porn_Without_Plot, Tentacle_Sex, Kink_Meme, Double
      Penetration, Prompt_Fill, Sex_Pollen
  Collections:
      My_Kink_Academia
  Stats:
      Published: 2017-11-10 Words: 2225
****** Get Stuffed ******
by clairesail
Summary
     kink meme fill for the prompt "Amajiki tentacling his kouhai please
     please, maybe Kiri gets hit with a lust quirk or something idk just
     stuff him full"
Notes
     for the bnha kink meme, i'm de-anoning cuz what the hell
     slightly cleaned up from the original
     there's artwork for this now by the wonderful Syblatortue!
See the end of the work for more notes
Kirishima can't wait. The front of his hero costume pants are rubbing against
his erection, the slight sensation almost painful in how it drives him crazy.
It's not enough; he needs more. He needs relief and he needs it now.
“Senpai~” He pants, voice rough and needy and high-pitched. His breath is so
hot it's vapor in the air, and Tamaki blushes. “Senpai please, I need –
anything. I need you.”
Tamaki buries his face in his hands, his complexion blossoming into a brilliant
shade of red to rival his kouhai's hair.
“Kirishima...” He mumbles, mouth twisting in shame as he looks off to the side,
“this is too embarrassing...”
“I- I won't tell anyone, I promise just ~please!” His pleas end in a sob, and
he falls forward to brace his hands against his knees, trembling. A pang of
sympathy courses through Tamaki at the sight. His kouhai is brave and strong,
and it's a pity to see him reduced to... this, over a simple aphrodisiac quirk.
 
They had been patrolling the neighborhood with Fatgum when the group of bandits
ran by, carrying a dufflebag of stolen money from a drug-deal gone bad. That
was common in these parts, but what wasn't common was the quirk one of the
villains had.
Fatgum gave chase, and as Tamaki started to take off, he noticed his kouhai
immobilized on the ground, clutching at his stomach and groaning. He stayed
back to check on him, and that's when everything spiraled out of control.
He asked him if he was hurt, what was happening to him, what he could do to
help. Kirishima was so incoherent he couldn't even answer, but when Tamaki
hefted him up by the shoulders, Kirishima groped him.
“I'm so sorry!” He apologized right after, bowing in earnest. But his cheeks
were flushed, he seemed like he was having trouble breathing, and his eyes
continued to roam Tamaki's body like he was an oasis in a desert.
 
So that's how Tamaki ended up in an empty shipping alleyway, hiding behind
stacks of crates, with a horny, aching kouhai.
“Pl-please touch me, senpai.” Kirishima moans, bringing a hand between his legs
to squeeze the bulge there. He's leaning against a large crate, his bare chest
heaving with the deep breaths he takes. Tamaki shakes his head again, hiding
his eyes behind his fingers.
He can't watch him like this. It's wrong and indecent and... really
embarrassing.
But... it's kind of...
Tamaki blushes harder, ashamed of the thoughts springing to mind. He can't take
advantage of Kirishima like this. It's wrong.
Almost as if reading his thoughts, Kirishima speaks again. “Amajiki-senpai,
please, I like you... I think you're so-so – I want you! Even before this
happened!”
“Wha-what?” Tamaki can't believe his ears. Can his kouhai be telling the truth,
that someone as bright and beautiful and pure like him wants someone pathetic
and weak like Tamaki? He shakes his head again, he can't believe it.
“I'm telling the truth!” Kirishima pleads, stares him straight in the eyes. “It
would be an honor to be with you!”
Tamaki has to look away again. It's so hard to look at him, sometimes.
Finally, he relents. If Kirishima has always wanted him, then it's not so bad,
right?
“What- what do you want me to do?” He asks barely above a whisper then, willing
his face to cool down. Kirishima cries out in relief, rubbing his cock through
his pants. Something stirs in Tamaki at the sight, so wanton and lewd. It's
like something out of an adult video, except it's happening right in front of
him.
“Touch me, anywhere, I don't care, I just-just want your hands on me.”
Kirishima groans, biting his lip. “Your mouth, your lips, your cock – fuck –
give me your tentacles, I don't care!”
Something disconnects in Tamaki's brain at that, the sheer embarrassment at
hearing those words so severe that he's no longer even sure he's alive, that
what he's seeing is real. Surely when those villains ran by, one of them killed
him, and this is just a bizarre fever dream?
“OK,” He says without thinking. He takes a couple steps forward so that he's
within arms reach of Kirishima, brings a hand up, and manifests.
He feels the tingle in his fingertips before he sees them, the octopus arms
sprouting from all five of his digits thick and long, growing longer still
until they could wrap many times around Kirishima if he wanted them to.
Kirishima rests his head against the crate, looking utterly wrecked already,
the hand on his crotch stilling as he watches in open fascination.
“Your so cool, senpai,” He sighs, smiling fondly despite the cloud of lust
hanging over him.
Tamaki gnaws on his lip, suppressing a smile at the compliment. It's hard for
him to accept them, but when Kirishima compliments him it always sounds so
genuine that he can't dislike it. He projects his tentacles out, bringing two
of them to wrap around Kirishima's waist. They're cool and slightly slimy, and
they stroke up and down his exposed torso, the suckers catching and dragging on
the dips in his abs and pecs. One curls around his nipple, gently at first and
Kirishima gasps, closing his eyes and arching his back to feel more. The quirk
is making him so sensitive all over, more than he's ever been before, to where
he wouldn't be surprised if a strong gust of wind is enough to bring him to his
knees.
As he's gasping and moaning, he feels something curve around his backside,
dipping slightly past the waistband of his pants. He scrambles to unbuckle his
belt with shaking fingers, and pulls his pants down to his thighs.
His cock springs free and a shiver runs down his spine, the cool air a relief
to his scorching skin. He hears Tamaki give a soft 'oh', and he opens his eyes.
Tamaki has his non-manifested hand by his leg, curled in a fist. He's trying
not to touch himself, instead focusing solely on relieving his kouhai of this
burden.
“Is-is this OK, Kirishima?” He asks, voice quiet and unsure.
Kirishima's eyes roll to the back of his head when he feels the tip of a
tentacle slipping between his ass crack. “More, please.” He begs. His wish is
granted, and the other two unoccupied tentacles encircle each a thigh. They rub
all along the inside, swirling and curling around the sensitive skin but never
touching the one place Kirishima is aching for.
“Don't tease me!” Kirishima cries, spreading his knees. He can't hold out any
more and he reaches to take his cock himself but the tentacles that were
stroking his nipples shoot down and restrain him by the wrists. Kirishima
groans in frustration and arousal, his arms being brought above his head and a
single tentacle squeezing them together at the wrists, while the other resumes
gliding back and forth against his pert nipples.
Suddenly his ass cheeks are being separated again, the winding tentacle
squeezing between the crevice, sliding along the seam there. Kirishima sighs in
relief, leaning his head against the crate again, and rocks back into the
touch. His cock is still hot and heavy and leaking, but the delicate touch
against his hole is enough to divert his attention.
The tentacle glides smoothly and seems to be getting wetter and wetter as it
moves, coating his ass in a slick, viscous fluid. He strains his neck back
trying to see behind him, but it's too dark, too covered in shadows to get a
good look. Whatever's happening with the tentacle, the other two around his
thighs are starting to do the same. They seep a lubricant from their suckers,
dampening his inner thighs, making the flesh prickle with goosebumps.
Then Kirishima feels himself being penetrated.
It's just the tip at first, thin and tapered and coated in lube so it slides in
easily, but it's better than any finger Kirishima's felt. He cries out
wantonly, head falling forward, and tries to fuck back on it.
“Does that feel good?” Tamaki asks. Kirishima looks at him; he had been
starting to forget he was even there, though how that was possible when he was
only a few feet in front of him, he has no idea.
He tries for a smile, but his face muscles are so slack from the overwhelming
lust that his lips only twitch, drool pooling and dripping out of the corner of
his mouth.
The tentacle on his chest hovers by his face and strokes his cheek. Kirishima
pinches his brow, craning his neck to lave at the appendage. It tastes slightly
briny but not unpleasant, and smells like the ocean. He busies himself licking
and kissing at it, relishes in the dual sensations of giving head and having
his hole played with.
But it's not enough. He wants to be fucked deeper, harder. His cock is still
untouched, his hole not nearly stretched enough.
“Senpai,” He says, pausing to suckle on the tentacle. “More, I want more.”
“Kirishima...” Tamaki is breathless. He's openly touching himself with his
unmanifested hand, cupping his groin through his clothes to curb his desires a
little. This isn't about him – it's about his kouhai. So he gives him what he
wants – he supposes Kirishima has been teased enough.
The tentacles around Kirishima's thigh unwind and take hold of his cock,
wrapping their tips around the shaft and completely enveloping it. He shudders
and bucks into the touch, simultaneously fucking himself on the one in his ass
and the two around his dick. But its still not enough.
The one in his ass pushes in farther, stretching him more and more as it gets
thicker the higher up it goes. He feels himself getting full, the stretch good
but aching. Kirishima has no idea how far up it's going, but it seems to slide
inside him past where a normal-sized cock could go and he thinks he'll burst
from the sheer fullness of it. His hole is twitching and clenching around it,
trying to clamp down on the appendage to halt its movement but it's so slicked
there's no stopping it.
Finally, the appendage stops. Kirishima is sobbing, tears of pleasure dripping
down the sides of his face. He's still mouthing absently at the tentacle by his
face, puckering his lips to taste it. It shoves itself into his mouth and gags
him. It's so good, being stuffed like this.
All at once, the tentacles start moving. The ones on his cock start to pump,
slicking him from base to tip, tugging on his length with just the right amount
of force. They tighten and twist and every now and then one of them unwinds to
pet at his balls before going back up to join its partner. The one in his ass
starts to fuck him, exiting his hole nearly completely before thrusting back
in, starting slow and gentle at first but gradually picking up pace to match
the tempo the ones around his cock. And the one in his mouth forces itself in
and out, stretching his pretty lips around it, making him taste its suckers.
Kirishima moans around it, twists and turns in the tentacle binding him,
seeking both more and less friction all at once. It's too much, it's not
enough, he's never felt so sated before and he knows he never will again, he
wants to cum but at the same time he doesn't want this to end.
He opens his eyes to catch his senpai panting and jerking himself off, his cock
pulled free of his pants. They lock eyes, and Kirishima groans around the
appendage in his mouth. Tamaki whimpers and cums, spurting thick ropes of jizz
at his kouhai's feet. When he comes down from his high, he's mortified but –
he's not stopping until Kirishima is done.
It doesn't take much longer, though. He's been fucking Kirishima in every hole
and stroking his cock nice and good the whole time, and at this point Kirishima
is crying from pleasure. He pulls the tentacle out from his mouth, giving him
reprieve.
Kirishima gasps for air. “Amajiki-senpai!” He weeps, putting all the porn stars
Tamaki's seen to shame, “You're so good, it's so good, please fuck me like this
every day, I'll do whatever you want, I-”
Kirishima chokes on his words, his pink, overworked cock squirting cum all over
himself and the tentacles. There's so much of it, the result of over-
stimulation of his prostate, and Kirishima's drenched in fluids – sweat and
tentacle lube and cum. When the tentacles slowly retract from his body, he's so
winded he collapses onto the ground and laughs.
“Are you alright?” Tamaki asks hesitantly, and withdraws his tentacles back
into his normal fingers.
Kirishima gives a lopsided smile. “Y-yeah...” The aphrodisiac quirk seems to
have worn off now that he's orgasmed, and he just had the most satisfying sex
of his young life.
“Hey! What the hell is going on over here??” Fatgum's voice echoes through the
alleyway, and Tamaki squeaks. He turns and hides his face against a crate, his
face an impressive shade of purple. Kirishima is too exhausted to move even to
cover himself, and as Fatgum approaches his expression turns from confusion to
embarrassment.
Kirishima's too blissed out to care.
End Notes
     I love comments and kudos and yeah i posted tentacle porn. It's a day
     of firsts.
     I have a tumblr
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