Story by Custos
(Original posting 10 November 2023 on https://inkbunny.net/Custos)

Please don’t repost this story, let it remain in my gallery on inkbunny!
This story contains material for adults only, do not read if you’re a minor.
The material presented is fictional and for adult fantasy only.
The author does not condone any of the depicted illegal activity in real life.

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ShiroTabi23 commission: Just a Prank

Waking up early as always on a Saturday morning, Hades rubbed the sleep from his eyes and looked over to the other bed in the modest bedroom. The ten-year-old Saint Bernard Shiba mix has to share a room with his older brother Zeus, a nineteen-year-old full-blood Saint Bernard, whom is currently spread out on top of his covers and snoring deeply. As you may have guessed, their father has a deep interest in Greek mythology, even going so far as calling their pet feral Saint Bernard dog Cerberus, despite the lack of three heads or a serpent for a tail. The man had thought it fitting after naming his youngest Hades, since the two of them would be spending a lot of time together.

The joined bedroom stinks of booze and cigarettes, Zeus not necessarily a smoker but spending all night with his friends out partying has left his clothes on the floor smelling like a bar. Hades giggles as he sees his brother lying on his back, the only garment he’s wearing his boxers, which are halfway down his legs. The ten-year-old finds this hilarious, knowing how deeply his brother will sleep after a night out. He had often pranked Zeus when he’s in this state, doodling penises and swears on his face fur or balancing objects all over his body, waiting for the big muscular jock to wake up well after noon only to discover his predicament. Zeus would curse and chase Hades in semi-mock anger, only to the little boy’s delight.

Technically being half brothers, sharing the same father but having different mothers, the two siblings look alike but have several key differences. Zeus for example is tall and muscular, with a slight muscle gut, a lot of fluffy fur expected from a Saint Bernard, and the typical head shape and fur patterns as well as the floppy ears. Hades on the other hand has the same fluffy fur but the brown in his patterns has been exchanged for a more golden tone typical to Shibas. He also possesses the typical curly tail, head shape, and ears of a Shiba. Hades is also a little more chubby, but this could be due to his young age and not having hit puberty yet.

Hades is sitting upright in his little bed with the cute prints of his favourite cartoon characters all over his sheets, the gears in his head turning for original ideas of what to do with his brother this time around. He could doodle more dongs on the white parts of Zeus’ fur, but he’s already done that. As he sits there pondering, suddenly the bedroom door swings open gently as a big feral Saint Bernard dog sticks his nose inside, Cerberus coming to inquire whether his usual playmate is up yet. Hades smiles happily and pats the cover of his bed, Cerberus immediately galloping into the room and jumping on top of the bed. Hades’ parents would have a fit if they knew.

As the ten-year-old is scratching the big slobbering feral dog behind the ears, a drop of Cerberus’ spittle soaks his pyjamas. The boy giggles:”Ew, Cerberus. Gross.”
The boy wipes the wet spot off on the uncaring big animal’s fur, when suddenly the proverbial lightbulb switches on above his head. Hades grins as he looks over at Zeus still snoring loudly, lost to the world, and he jumps out of his bed:”Come, Zeus! This is gonna be so gross and funny!”
The young Saint Bernard Shiba mix tiptoes over to his big brother and stands besides his bed for a second, waiting to see if there’s any reaction whatsoever. Hades pokes his brother in his pec as he whispers:”Hey, Zeus. You awake?”
More snoring is the only answer, not even a twitch from an arm or an eyebrow. Hades giggles and speaks in a normal volume now:”Zeus, you’re a big poopy head!”
The little boy darts back to his own bed and jumps under his covers next to Cerberus who is still lying there, as if that would protect Hades from his brother’s wrath. No reaction.

Once again, the boy exits his bed and walks over to his big brother, giggling excitedly as he shakes the young adult’s arm and chest:”Hey, ugly! Your girlfriend is here and she wants to make the kissy sex stuff!”
Again, not even a twitch as Zeus is sleeping off his hangover and is simply dead to the world. Hades grins his canines bare and turns to Cerberus, who is still resting comfortably on the little boy’s bed:”Cerberus, here boy!”
Lazily, the big feral dog gets up and his paws thud onto the wooden floor, his nails making audible little clicking sounds with each step as he approaches his young master with a slight wag in his tail. Cerberus’ chops are hanging low, his tongue lolling out of his big maw, and his big goofy eyes kind and inquisitive. Hades directs the big lumbering oaf of a dog towards his sleeping brother, raising his arm up with a lot of effort and exposing the nineteen-year-old’s armpit:”Go on, boy. Lick him! Haha, ew.”

Before Hades could even finish his sentence, Cerberus has already stuck his wet nose in Zeus’ armpit and starts lapping at it, to the little boy’s gross delight. There’s not even a pause in the young adult’s snoring, his eyes remaining firmly closed and his breathing steady, as Hades guides Cerberus’ head towards his brother’s firm pecs and stiff nipples. The big feral Saint Bernard dog’s broad wet tongue slides over the sensitive little nub, eagerly licking off the light sheen of salty sweat of the night, not needing any more guidance from his young master to start exploring his older master’s body in search for delicious flavours. Hades stands back and nearly falls to the floor in a fit of giggles as his pet has his front paws on the bed to reach as much of Zeus’ body as it possibly can, skilfully cleaning every nook and cranny of the handsome Saint Bernard’s torso.

And then, Cerberus’ head dips down, sniffing the drunkenly snoring nineteen-year-old’s exposed sheath as a good amount of firm red length has emerged from it. Hades gasps in both shocked surprise as well as boyish disgust and curiosity:”Ew, Cerberus. That’s his weenie! He pees from there!”
The big feral dog is not deterred in the slightest by either scent or his young master’s protests, as his slimy wet tongue starts slobbering all over the exposed teenager’s red rocket, making it swell up and slide out of its furry cover even more. Hades is entranced and taken by curiosity, his eyes big as they’re glued to his brother’s emerging erection. He’d seen his brother, and father and mother for that matter, naked many times without ever giving it another thought. He’d even seen the hint of pink start to peep out of his brother’s sheath since Zeus entered puberty, and the tip of his father was often on display in the morning without anyone giving it any attention. Hades’ sheath was still young and plump, without any sign of his pink tip unless he drew it back when he washed it, further fuelling his desire to witness more of this gross but fascinating scene.

The more of Zeus’ cock emerged from his fat sheath, the more Cerberus licked and slobbered, which in turn caused the young adult’s member to plump up even more. Hades witnesses breathlessly, his little hand instinctively reaching down to his own sheath through his pyjama bottoms and starting to squeeze it subconsciously. If Zeus woke up right now, he’d kill him for sure. Not that it deters the little boy, as he’s not thinking clearly, this excited and pleasurable tingle radiating from his young underdeveloped loins up his spine, causing Hades to shiver. The little boy’s fur stands up, as if he’s cold, quietly witnessing the big throbbing length of his big brother floating over his lower stomach and being thoroughly licked by the feral dog’s broad tongue, pulsing along with his heartbeat and flexing at the pleasurable sensations.

Zeus’ balls are big and look heavy, rolling around in their sac as the shiny red monolith above them is lapped at, the shiny sheen of saliva and precum making the length look so juicy and even inviting, though Hades doesn’t know why. Until moments ago, he considered weenies gross and just something to go to the bathroom with, but looking at his big brother’s in this state is making many confusing feelings to emerge and causing butterflies in the preteen’s stomach. Slowly, Hades lowers his own pyjama bottoms and lets them fall to the floor around his ankles, his small fist clutching his own emerging red rocket as he fiddles around with it a little clumsily. The ten-year-old boy is standing there entranced and looking so small and very vulnerable next to his big brother’s strong frame on the bed. There’s no comparison, and for the first time in his life, Hades looks at Zeus’ body through different eyes. He wants to be closer to his brother too, just like Cerberus is right now. Only, he’s scared shitless Zeus would wake up as soon as he’d touch him, and beat him to death. Hades can already imagine his brother’s wrath and the consequences, his youthful fantasy running away from himself.

Hades sniffles a little and wipes away a tear, shaking his head as focuses on Cerberus’ administrations again, wanting this moment to go on for as long as possible, since he may not ever get another chance like this again. Even if it means that he can’t touch his brother’s handsome body. His young cocklet is as hard as it has ever been, fully emerged and a good couple of inches sticking out from his sheath, the boy surprised to find a swelling bulb underneath still inside his sheath.

Upon closer inspection, he can see that his big brother also has a large bulb forming inside his sheath just underneath his impressively thick and long length, Cerberus’ tongue focusing on lapping at the black lips of his older master’s furry cover hugging the pink shaft. Hades looks down at his own cocklet for the first time, surprised at how big it looks now sticking from his sheath, and he fingers the edge of his sheath’s mouth clutching the base. He gingerly squeezes his little knot and nearly falls down as a wave of pleasure rushes over him:”Ooh…”
Hades stands there, little knees buckled as his small fingers feel all around his knotty and squeeze it rhythmically, the boy seeing stars:”Ooh, so this is sex… Now I know why Zeus likes to make sex with his girlfriend so much…”

Meanwhile, Cerberus has lowered his big snout underneath Zeus’ hefty balls, lapping all over and under them, making the teenager moan out for the very first time in his drunken sleep as he opens his legs more, inviting the big feral dog’s tongue deeper. If Hades were thinking clearly, he’d be scared shitless at his brother’s reaction, but right now for the very first time in his life the head down below is doing the thinking. The little boy shuffles up directly next to the bed as he clumsily masturbates for the first time in his life as well, trying out grips and techniques until he settles on something he likes most, combined with squeezing his little knotty:”Ungh, Zeus. Zeus…”
Even if his big brother is still soundly asleep, Hades doesn’t get the words to emerge from his lips. He wants to tell his big brother that he’s handsome and that he loves him, but he simply can’t. Still too afraid.

The big feral dog’s hefty cock is also peaking out from his own fat sheath between his hind legs, spurting thin jets of watery precum all over the floor and Zeus’ bed, the bedroom positively smelling like male musk and sex at this point. Though, Hades notices, he has mostly eyes for his brother, whom is now moaning and grunting sexily in his drunken sleep, gyrating his hips and making his cock flex in rhythmic spasms. Zeus is equally spurting many watery jets of precum all over his own stomach and chest, making Hades’ nostrils flare as his deep brown eyes focus on the beautiful spectacle, his pointy Shiba ears twitching for every little grunt of pleasure from his older brother. The ten-year-old boy licks his lips subconsciously, drawn to it so deeply, wanting to taste his big brother’s wonderfully smelling essence.

Cerberus is slowly humping the air at this point in time, his cock emerging from his fat sheath and rubbing over the side of the bed and mattress, the feral Saint Bernard hunching into the furniture in search for relief. His broad slimy tongue is worming inside Zeus’ tail hole right now, making the sleeping teenager grunt and moan, his big cock throbbing angrily and spurting more jets of precum. Hades is humping his own little fist with his eyes trained on his older brother, his small tail wagging furiously as he’s discovering the pleasures of sex through his sleeping sibling’s morning erection:”Ah, Zeus. L-look. Mine’s out, just like yours. I’m a big boy too now, Zeus. Look. Look at my weenie, Zeus…”
Hades approaches his moaning brother’s form, the drunken haze causing him to not wake up, and the little boy is fearful but unable to not take the risk as he gently and slowly places his little balls and weenie in the palm of Zeus’ hand:”L-look, Zeus. Can you see? Can you feel? Am I a big boy too, now? I love you, big bro…”

Suddenly, Cerberus dismounts the bed and withdraws his tongue from between the nineteen-year-old’s legs, humping wildly in the air and doing a happy dance as his knot swells up fully inside his sheath. The watery spurts change in viscosity and thicker streams of seed jet out all over the room. The big feral dog’s thrusts are majestic and impressive, his big heavy balls swinging back and forth between his hind legs as with each thrust a new jet of watery doggy cum is expelled over the floor. Hades is so distracted that he doesn’t even feel Zeus’ fingers twitch around his little balls, squeezing the small orbs erratically.

Hades’ eyes are twinkling in awe as he sees Cerberus cum for the very first time in his life, witnessing the majesty that is a strong male’s ejaculation at the peak of their primal need for relief. Immediately, the young boy’s mind switches back over to Zeus, aching to see his brother do the very same. His inhibitions fading in his desire to see the powerful sleeping male do the same, needing to witness his brother’s ejaculation even if it would mean waking him up and Zeus killing him.

The ten-year-old withdraws his little balls from Zeus’ palm and moves down to kneel next to the bed at eye-level with the still throbbing impressive length of cock. Jets of watery precum continue to spritz out of the pointy tip of the red rocket, Hades reaching out to his brother’s stomach and rubbing the tip of his finger in the forming pool to then sniff it gingerly. It didn’t smell gross at all, but only of his brother in a very concentrated form. The little Saint Bernard Shiba mix darts out his tongue before he realises and licks up the drop on his fingertip, his brain immediately going into sensory overload. It tastes like those very strong and special hugs his big brother used to give him when they were younger, when they would snuggle up in front of the television and Hades would nestle on Zeus’ lap and in his strong arms. Just thinking back to it makes the butterflies in his tummy flutter wildly, and a single tear of joy rolls down Hades’ cheek.

The boy looks at his sleeping brother’s face, all scrunched up in a goofy smile at the pleasure he’s experiencing in his dreams, and gently takes hold of his sibling’s hand:”Don’t worry, Zeus. I’ll make the sex for you. You’ll be as happy as Cerberus!”
Cerberus is lying in a corner of the room, licking his pulsing cock as it still jets out precum, perking his floppy ears when hearing his name.

Hades reaches out to his brother’s groin and audible gasps when his little fingers make contact with the sheath swollen with the older boy’s knot, marvelling at the heat and the softness of the fur covering the very hard bulb underneath. His other hand subconsciously grabs his own little cocklet and knotty, and immediately starts furiously jerking off. Huffing and panting, Hades starts to rhythmically slide his big brother’s sheath back and forth over the swollen knot, the opening stretching more on each downward stroke as Zeus starts to moan and lowly howl in his sleep. The massive red cock sways up and down, back and forth over Zeus’ stomach, the teenager thrashing his head back into his pillow as he starts hunching his hips upwards, a jet of precum releasing with each thrust. The watery jets are covering everything, the bed, the walls, the floor, Zeus’ face and upper body, and more. Hades doesn’t seem to notice or care, feeling this unknown sensation build up within his own loins as he masturbates his big brother’s knot faster and faster, his eyes glued and enthralled upon it as more of the red bulb is revealed with each downward stroke.

Then, suddenly, there’s a knock at the door and the voice of their father speaks up as it swings open:”Boys, are you up ye-“
Hades’ mind subconsciously registers his father’s sudden presence, his hand pulling down his big brother’s sheath and causing the big bulbous knot to pop free from its furry prison, making Zeus howl in his drunken sleep and erupt in a mind-shattering climax. Ropes upon ropes of thick viscous semen jet out from Zeus’ pointy red dog cock, all over himself and Hades’ hand as the little boy himself howls out in his first orgasm, popping his own knotty free and causing his small doggy cocklet to twitch violently in a dry orgasm.

Unable to stop himself, Hades continues to milk both his brother’s knot and his own cocklet as he slumps onto the floor on his knees, his exhausted eyes turning to his father, the sting of panic dulled by the sex-drunk haze still clouding his mind. He can see his father’s nostrils flare as he takes in the scent of male musk in the room, his eyes darting to the still ejaculating cock of his eldest son asleep on his bed with his little brother’s hand clutching both his knot and Hades’ own twitching cocklet, as well as to Cerberus licking his own exposed doggy penis in the corner. The Saint Bernard father is wearing an open bathrobe as he usually does in the morning, his own pink tip showing from his own fat sheath as it usually does in the morning as well. He takes a deep breath and looks down at his youngest son, barely ten years old and experimenting with his sleeping brother’s cock:”Son, I think it’s time we had the sex talk…”