A dogâs purpose
Submissive! Naoya Zennin x dom! fem reader. FYI, itâs a bit dark. Mentions of abuse, bondage, peeing, mindbreak, a little bit of pain infliction. Heâs wearing a bitchsuit and is on piddlefours. Iâd recommend searching this up if you want a better idea on his position during this story. Also, based on the few stories on my page, you can tell I have something for puppy boys đ
The room smells of stale sweat and desperation.
It's a small, windowless space. A former storage closet, perhaps a servant's quarters in some forgotten wing of the Zenin estate. The only light comes from a single bare bulb overhead that flickers every few seconds. It's been hours, but feels like days. Time has become a slippery thing, measured not in hours but in the erosion of his spirit.
The mattress on the floor is thin and sagging. Naoya Zenin lies on his side, legs tucked slightly toward his chest, the same position he's held for what feels like an eternity. His dyed blonde hair which is more so just green hair, once meticulously styled to perfection, now lies lank and greasy against his forehead. The sharp, aristocratic angles of his face are hollowed by exhaustion, his brown eyes dulled.
In the corner sits a chipped ceramic bowl filled with water. Beside it, another bowl contains something that might generously be called foodâa greyish, mushed-up paste that smells faintly of meat and grain. It's been there since morning. He ate some of it. On all fours. Face-first. The memory makes his stomach turn.
And then, the final piece of humiliation. Spread across the floor near the door, a rectangular dog peeing mat. Disposable. Absorbent. Printed with little paw prints around the border as if that somehow makes it less dehumanizing. He hasn't needed it yet. He's been holding, fighting his own body with the last shreds of his Zenin discipline. But the pressure in his bladder is becoming impossible to ignore, and the realization that he will eventually have to crawl over to that mat, squat over it like some housebroken mongrelâ
The door opens.
No knock. No warning. Just the sudden intrusion of light from the hallway, cutting a harsh white wedge across the grimy floor. Naoya flinches, instinctively curling tighter into himself. The bare bulb above seems to dim in deference to the brightness spilling in.
You stand in the doorway, silhouetted against the polished wood corridor beyond. You don't step inside. You don't need to.
He looks up at you from his mattress on the floor. His cracked lips part. A sound tries to escapeâperhaps a plea, perhaps a curse, perhaps just her nameâbut nothing comes except a dry, rasping exhale. The heir of the Zenin clan has been reduced to this: a creature who waits, who endures, who has learned that survival means silence until spoken to.
Ever since that nightâthe night you walked through the estate gates and painted the Zenin compound red with the blood of his familyâhe has been unmade. Piece by piece. Layer by layer. You killed them all. Every sorcerer, every elder, every cousin. Everyone except him. He still doesn't know why. Probably because of the way he treated you back when you were just a helpless girl. Before you surpassed him, something he still isnât willing to admit.
Your gaze sweeps over the roomâthe mattress, the bowls, the peeing matâwith clinical detachment. If you feel satisfaction at how thoroughly you've broken him, it doesn't show on your face.
"Get up," you say. Your voice is calm. Absolute. It leaves no room for anything but obedience. "You're going to follow me."
You step back from the doorway, making space. Naoya's body moves before his mind has even finished processing the command. His muscles, sore from hours of stillness, scream in protest as he pushes himself up onto all fours.
You begin walking away and he follows.
The hallway stretches endlessly before him. Each shuffling movement showcases his restriction. Naoya Zenin, heir to a name that once commanded fear and respect, now exists solely within the confines of his bondage. The bitchsuit is a masterwork of gleaming black leather, locking his knees and elbows into an acute, permanent bend. He cannot stand. He cannot straighten his limbs. His world is reduced to the fifteen inches between his padded knees and elbows, the polished floor, and you.
The gag stretches his jaw wide. A thin strand of drool has already begun to escape the corner of his mouth, a glistening thread that sways with his laborious crawl. His pride, once a towering inferno, is now a tiny, sputtering ember.
You walk ahead of him, a vision of casual dominance.
Click, click, click, is the sound your heels make. In your hand, you carry a slender, elegant riding crop.
Naoya tries to match his rhythm to yoursâleft knee, right elbow, right knee, left elbowâa humiliating, rocking motion. The muscles in his thighs and shoulders burn. Heâs a Zenin, crawling like a common dog. His cock, traitorously, hangs heavy and half-hard beneath him, swaying with every lurching step like a slab of meat on a butcherâs hook.
He grunts against the gag as one of his knee pads slips slightly on a wooden plank out of place. The tiny misstep jolts through his locked joints, causing a sharp jarring pain. His rhythm falters. He pauses for a fraction of a second, just to breathe, just to steady himself.
Thwack.
A sharp, focused sting blooms across the lower curve of his right buttock. It's not a brutal blow, but it's perfectly placed, a mark that makes him flinch and whimper against the gag.
"Did I say you could stop?" Your voice is calm, devoid of anger, yet it cuts through him more effectively than any cursed technique. He can feel your gaze on him now.
Naoya's head jerks up at the sound of your voice, his hair falling messily across his wide eyes locked onto you. He shakes his head quickly, franticallyâno, no you didn't, you didn't say I could stopâthe motion desperate and jerky, like a dog trying to appease its master. The gag makes the movement clumsy, ungraceful. A thin strand of drool flicks from the corner of his mouth, catching the light before it splatters against the floor.
A hot wave of shame washes over Naoya. He looks back down and renews his efforts, his movements becoming more frantic, more eager. The sound of his knees and elbows scuffing against the floor fills the hallway. Heâs panting now, short, sharp breaths forced through his nose around the gag. The drool drips onto the marble, leaving a faint, shameful trail in his wake. He crawls faster, fixated on the sight of your heels, on the hem of your attire.
With a surge of desperate energy, he closes the small gap heâd created. Heâs right behind you now, his head almost level with the back of your knees. He can smell youâa faint, clean perfume mixed with the intoxicating scent of power. He lets out a small, involuntary whine from deep in his throat, muffled by the gag. Itâs a sound of pure, pathetic canine need. He wants to nuzzle your leg, to feel the fabric of your clothing against his hair, a silent, doggish plea for acknowledgment despite all the abuse youâve put him through. All he has is you now. Youâve made sure of that.
You stop without warning. Naoya, so focused on chasing you, nearly bumps his snout into your calf. He freezes, every trembling muscle locked tight, his back a sloping line of submission. His heart jackhammers against his ribs. The silence is thick, heavy. He hears the subtle shift of the riding crop in your hand. He braces for the sting, a punishment for his earlier hesitation, for his presumptuousness in getting so close without permission.
Instead, the silence stretches. One heartbeat. Two. Three.
You turn slowly, and Naoya squeezes his eyes shut, bracing. The crop. The scolding. The cold disappointment. He knows these things now. He's learned the shape of your displeasure.
But nothing comes.
He dares to crack his eyes open and finds you looking down at him. Not with the clinical detachment from before, not with the sharp edge of command. Your expression is unreadable for a moment, and thenâ
You smile.
It's not a cruel smile. It's not predatory or mocking. It's sweet. Bright. The kind of smile someone gives a beloved pet who's just done something impossibly endearing. Your eyes crinkle at the corners. Your whole demeanor shifts, the crop hanging loose and forgotten at your side.
"Good boy," you say, and the words hit him like a physical blow. "Such a good boy, Naoya."
He makes a sound against the gag. Something strangled. Something breaking.
You tilt your head, that radiant smile still in place, and your voice drops to something soft and warmâthe voice someone uses to coo at a puppy. "Do you want a belly rub? Hmm? Does my good boy want a belly rub?"
Something inside Naoya Zenin shatters.
It's not a crack. It's not a slow crumbling. It's an absolute, catastrophic demolition of everything he was, everything he tried to hold onto. The last wall, the final brick of pride he'd kept clutched to his chest in the dark of that storage room doesn't just fall. It explodes.
A sound rips out of him. High-pitched. Desperate. A keening whine that starts deep in his chest and punches its way past the bone gag, filling the marble hallway with raw, animal need. His eyes, those sharp brown eyes that once looked down on everyone, are wide and wet and begging.
He doesn't think. Thinking is gone. There is only the need, obliterating everything else.
Naoya flops onto his back with all the grace of a dog throwing itself at its owner's feet. His bound limbs stick up awkwardly, knees and elbows bent, but he doesn't care, can't care, because you're still smiling and he needsâhe needsâ
He writhes. That's the only word for it. He arches his spine and wriggles on his back, presenting his bellyâhis vulnerable, exposed stomach and chestâto you with utter, shameless desperation. His bound arms flail uselessly. His hips buck against nothing. The gag muffles his frantic whining, but it can't silence it entirely. The sound echoes off the marble walls, a continuous, pitiful cry of please, please, please.
He's going to die. If your hand doesn't touch him in the next five seconds, his heart will simply stop. He knows this with the same certainty he once knew his own superiority. He will die right here, NOW, on this cold marble floor, a bound and broken thing, because you smiled at him and he needsâ
You crouch down.
The sight of you descending to his level, the rustle of your clothing, the way your smile softens into something almost fondâit pulls another desperate whine from his throat. His hips buck harder. His cock, already hard, bobs against his stomach, leaking a thin trail of precum onto his own skin.
"There we go," you murmur, and then your hand makes contact with his belly.
The touch is gentle. That's what destroys him completely. Not painâhe's learned to take pain. Not commandâhe's learned to obey. But this soft, affectionate touch, your palm pressing flat against the planes of his stomach and then rubbing in slow, warm circles?
He's never felt anything like it. No one has ever touched him like this. Like he was precious. Like he was good.
Naoya screams against the gag. It comes out as a muffled, high-pitched wail, his entire body convulsing. The pressure that's been building for hours, for days, for his entire miserable lifeâit crests, crashes, and then his cock jerks violently and erupts.
The first rope of cum splatters across his own chest, hot and thick and startlingly white. Another follows, painting a stripe up toward his collarbone. And another. And another. His hips pump uselessly into the air, his bound limbs trembling, as wave after wave of release tears through him. He can't stop. He can't control it. He's coming apart, literally and figuratively, and your hand never stops movingâgentle, circular rubs across his belly as he coats himself in his own release.
The whining doesn't stop. It might be his voice now, permanently. The sound of a dog who's finally, finally been told he's good.
When the last spasm fades, Naoya goes limp. His chest heaves. His limbs, still locked in their permanent bend, fall slack against the marble. Cum pools in the dips of his collarbone, drips down his sides, sticks to your fingers where they still rest on his belly.
He's floating. Somewhere far away. Somewhere soft.
And then, because his body is no longer his ownâbecause it's yours, all yoursâthe muscles he's been clenching for hours finally give out.
A warm wetness spreads beneath him, pooling on the polished marble. The sharp smell of urine cuts through the air. Naoya doesn't even have the strength to be mortified. He just lies there, in a puddle of his own making, covered in his own spend, while you crouch beside him with that gentle smile still playing at your lips.
The heir of the Zenin clan is gone. In his place is only this: a panting, trembling, emptied thing, staring up at you with hazy brown eyes that hold nothing but devotion.
You give his belly one final pat.
"Good boy," you say again, and Naoya's eyes flutter closed.
He is fully, irreversibly, yours.















