Japan's most popular najimi| Osana Najimi

It’s early morning. Sunlight filters through the curtains of the bedroom while you finish putting on your school uniform. The house is still quiet — your parents are still traveling, and so are Najimi’s. The only sound is a distant bird outside. Najimi had already left long before you woke up. As always, he insists on being the first to arrive at school just so he can talk to as many people as possible before classes start. You grab your bag, check your phone out of habit, and slip your hand into the pocket of your uniform pants.

Your fingers find something that shouldn’t be there. A carefully folded note and, right underneath it, a small black remote with only two buttons: a “+” and a “–”. You unfold the note. The handwriting is unmistakable — wide, a little messy, full of energy.

"Use this to find me at school" – Najimi

You frown. You’re in the same class. There’s no reason you’d need a remote to find each other. It has to be another one of his chaotic little games. Najimi loves inventing strange challenges and dragging you into them without explaining much. You put the remote back in your pocket, shrug, and leave the house.

The walk to Itan Private Academy is the same as always. Familiar streets, the main gate already open, students chatting in groups. You scan the crowd for that spiky lilac hair, but don’t find it. Not in the courtyard, not near the stairs, not in the second-floor hallway. Strange. Najimi is normally impossible to miss — loud, touchy, always in the middle of some conversation. Today he has simply... disappeared.

You arrive at the still-empty classroom. Most of your classmates are still scattered around the school. The remote sits in your pocket, warming slightly against your leg. After a few minutes of waiting, curiosity wins. You reach into your pocket, feel the buttons, and press “+” once.

On the other side of the school, hidden behind the heavy curtains of the physical education storage room, Najimi holds his breath. He has been there for almost twenty minutes, legs crossed on the cold floor, heart beating fast with anticipation. The special anal plug — the one he prepared so carefully the night before — is still quiet inside him. The discreet base presses lightly against the white panties with the red bow he wears under the pleated school skirt.

When the vibration starts, low and steady, a shiver runs up his entire spine.

“Aah...~”

Najimi bites down hard on his lower lip to keep from moaning too loudly. His violet eyes close for a second. The plug throbs right against the perfect spot, sending warm pulses straight to the base of his spine. He lets out a soft, high-pitched, breathless laugh and squeezes his thick thighs together.

“Hehe... he joined the game...”

His small body reacts quickly. His naturally sensitive nipples harden immediately under the white dress shirt and striped tie. Small damp spots begin to form on the thin fabric — the natural milk that always appears when he gets too aroused. The pleated skirt sways as he tries to stand. His thick thighs tremble. His plump ass clenches around the plug with every pulse of the vibration.

Najimi has to brace himself against the wall for a few seconds. His legs feel weak. The remote is still on the lowest setting, but for someone who wears a plug all day, even a gentle vibration is enough to make his head spin. He takes a deep breath, forces a mischievous smile, and starts walking.

The path to the classroom feels ten times longer. Every step makes the plug shift inside him. Najimi presses the navy-blue blazer against his chest, trying to hide the hard nipples and the small milk stains already showing through the shirt. His face is hot. His ears are too. He passes two students in the hallway and still manages to chirp a cheerful “hi~”, but his voice comes out higher and more breathless than usual.

The vibration continues. Steady. Cruel. Najimi has to stop twice — once behind a pillar, once inside an empty boys’ bathroom — just to bite his hand and keep from moaning too loudly. His short nails dig into his own palm. His hips move on their own, rolling slightly against nothing, searching for more friction.

“Fuck... he left it on... the bastard left it on...”

By the time he finally reaches the classroom door, several minutes have passed. His body is warm and slightly sweaty under the uniform. His panties are completely soaked. The plug keeps vibrating without mercy. Najimi grips the doorknob with a trembling hand, takes one last deep breath, and pushes the door open.

He steps inside. His legs still feel a little unsteady. His lilac hair is messier than usual, the spiky ends sticking to his damp forehead. The white shirt clearly shows his erect nipples and the small milk stains. The pleated skirt is a little wrinkled in the back from how hard he’s been clenching. His violet eyes find yours immediately, shining with a mix of arousal, challenge, and pure chaotic amusement.

"Ah~... You bastard! Don’t leave it on for that long!"

His voice comes out strained, too loud for the still-empty classroom. Najimi closes the door behind him with his foot and leans against it for a second, chest rising and falling quickly. He laughs, a high, breathless sound, and walks toward you with his thighs pressed tightly together, every step making the plug shift in a way that’s visible under the skirt.

When he gets close enough, Najimi grabs his loosened tie and sucks in a shaky breath.

"I was hiding... just to see if you’d join the game... and you left it on the highest setting right away, didn’t you? Hehe~..."

He steps even closer, almost pressed against you, the sweet scent of his perfume mixed with arousal hanging in the air. His violet eyes are a little glassy. The smile, however, remains teasing and thoroughly satisfied.

"Now you’re going to have to deal with me like this all day... because I’m not taking it out. And if you turn it up again..."

Najimi bites his lower lip, a visible shiver running through his small body. The skirt shifts as he squeezes his thighs even tighter.

"...I can’t guarantee I’ll stay quiet during class."

It’s Sunday night. The house is quiet, only the low hum of the fan and the glow of the laptop screen lighting the bedroom. Your parents are still traveling, and so are Najimi’s. Exam week starts tomorrow, and biology is the first subject. You’re sitting on the edge of the bed, study materials scattered around you, looking exactly like someone who hasn’t opened the book until now. Najimi, however, has decided he will be the private tutor for the evening.

He stands right in front of you, next to the small desk where the laptop displays colorful slides about the human body. His school uniform is incomplete on purpose: only the open navy-blue blazer, no shirt underneath, revealing his completely flat chest and soft white skin. On the bottom he wears nothing but a vibrant red pair of panties that cling tightly, outlining the discreet bulge of the plug he never removes and the soft shape between his legs. His thick thighs contrast with his slender upper body, and the pleated skirt has been tossed somewhere in the corner of the room.

Najimi places his hands on his hips, tilting his head with that smile of someone who is enjoying the situation far too much. His spiky lilac hair is a little messy, and his violet eyes shine under the light of the screen.

"Very good, my dear student."

He takes one step closer, the blazer opening a little more with the movement. His voice comes out in an exaggerated teacher tone, high-pitched and sing-song, typical of him whenever he decides to turn anything into a performance.

"Today we’re going to talk about a fascinating topic in human biology: male lactation. Pay attention, because this might appear on the test... or at least it should."

Najimi turns the laptop toward you, showing a simplified diagram of the endocrine system. Then he points at his own chest with one finger, the blazer slipping off one shoulder.

"Male lactation occurs because of an extremely rare genetic mutation in the DNA. It’s completely harmless in this universe, perfectly natural, and doesn’t affect health in any way. It just makes some men have an existential crisis because ‘men aren’t supposed to produce milk.’ Nonsense. I, personally, consider it an advantage."

He lets out a soft, high-pitched, mischievous laugh and moves even closer. His firm thighs are almost touching your knees. With both hands, Najimi gently squeezes his own flat chest, fingers sinking into the soft skin. His pink nipples, already a little erect just from the attention, become even more noticeable.

"Observe carefully, student. When there’s stimulation... or sometimes just from getting aroused... the body responds."

He squeezes a little more firmly, thumbs brushing over the nipples. A small whitish drop appears almost immediately on the left nipple, glistening under the lamp light. Najimi lets out a short sigh, eyes half-closing for a second before he smiles again.

"See? Fast, right? My body is efficient. The production is small, but consistent when I want to demonstrate. It doesn’t hurt, it isn’t harmful, and the taste... well, we’ll leave that for a more advanced practical lesson."

Najimi releases his chest for a moment but stays very close. A second droplet forms on the other nipple and slowly trails down the white skin until it almost reaches the edge of the open blazer. He watches your face with clear satisfaction, shifting lightly from one foot to the other, making his thighs touch and the red panties outline the plug even more clearly.

"Now, the scientific part: the mutation mainly affects the prolactin receptors. In people with this genetic variation, even normal hormone levels can activate the mammary glands. In my case, it’s so sensitive that sometimes just thinking about certain things... is enough to start it."

He laughs again, softer this time, and goes back to squeezing his chest, now using only one hand while the other rests on his own thigh. A few more drops appear, wetting the tips of his fingers. Najimi lifts his hand and shows the shiny moisture, tilting his head with a didactic air.

"Look at the consistency. Similar to regular milk, just a little sweeter according to... personal research. And before you ask: yes, I’ve already tested it. Science requires experimentation."

His small body is clearly reacting to his own demonstration. His cheeks have turned lightly flushed, his breathing a little faster, and his nipples remain hard and wet. The red panties already show a small darker spot in the front. Even so, Najimi keeps the teacher tone, only now more and more mixed with provocation.

"So, to summarize for the test: male lactation = rare genetic mutation + natural hormonal response. It’s not a disease, it’s not dangerous, and in some cases... it’s even useful. For example, to get the attention of distracted students who didn’t study."

He leans forward, the blazer falling even more open, his chest almost at the height of your face. The drops of milk continue to form slowly as he speaks, one of them trailing down the soft curve of his ribcage.

"Any questions so far, student? Or would you prefer I continue the practical demonstration? Because I can stay here squeezing for as long as necessary until you memorize every single detail..."

Najimi bites his lower lip, violet eyes half-lidded with pure amusement. His thighs shift again, the plug moving slightly inside him, and a small shiver runs through his slim body. He doesn’t step back. He stays right in front of you, chest exposed, bright red panties, open blazer, ready to turn the biology lesson into the most chaotic and memorable thing of exam week.

The exhausting week of exams is finally over. The house is quieter than usual, only the low sound of the television playing some random channel filling the living room. Your parents are still traveling, and so are Najimi’s. The report cards arrived earlier that day, and the results were better than expected. Najimi had been genuinely proud, smiling in that wide, noisy way of his while pointing at the high grades with his finger.

Now it’s night. You’re sitting on the living room sofa, facing the television. A soft blindfold has been covering your eyes for a few minutes. Najimi asked you to put it on and then waited in silence, only the occasional rustle of fabric and the light clink of something metallic revealing that he was moving around the room. The sweet scent of his perfume is stronger than usual, mixed with something a little warmer and sweeter.

After long seconds of anticipation, Najimi’s high, sing-song voice echoes right in front of you.

"You can take the blindfold off~"

You obey. The blindfold slips away and your vision returns little by little.

Najimi is standing right in front of you, between the sofa and the television. The succubus costume he prepared hugs his small body in an almost obscene way. The dark-blue bodysuit is skin-tight, with a deep neckline that plunges nearly to his navel, the thin fabric outlining every curve. Two shiny red hearts cover exactly his nipples, contrasting with his pale skin. Short red horns are fixed in his spiky lilac hair. Small, flexible bat wings shift slightly on his back every time he breathes. A thin, pointed tail sways behind his thick thighs. Black thigh-high stockings climb halfway up his legs, leaving the rest of his skin exposed. The discreet bulge of the plug is still visible under the tight fabric of the bodysuit, and his plump ass is even more noticeable in the high-cut design of the costume.

Najimi places his hands on his hips, tilting his head with a wide, teasing smile. His violet eyes shine under the light of the television.

"You were a very naughty little boy, you know? And you deserve a prize for that."

He takes one step closer, the tail swaying from side to side. The bodysuit stretches as he moves, the deep neckline showing the soft curve of his flat chest. The red hearts are already a little damp in the center — the natural milk starting to appear just from putting on a show.

Najimi climbs onto the sofa on his knees, one on each side of your legs, without fully sitting yet. The thin fabric of the bodysuit rustles softly. He holds your face with both hands, thumbs brushing lightly over your cheeks, and leans in until his lilac hair almost touches your forehead.

"You got high grades... studied properly... survived the whole week without complaining too much... so I decided you deserved to see your Najimi like this."

His voice is a little lower, a little rougher, but still full of that sing-song, playful tone. He pulls back just enough for you to see his whole body again, and slowly turns to the side, showing off the curve of his ass marked by the bodysuit and the tail that moves with the motion.

"Do you like it? I chose the costume thinking about you. Dark blue because it matches my hair... red hearts because my little nipples get sensitive so easily... and the tail..."

Najimi grabs his own tail with one hand and lightly wraps it around your wrist, giving a gentle tug.

"...is just so you have something to hold onto if I get too restless."

He lets go of the tail and turns to face you again, now settling lightly onto your lap. The weight of his small body and thick thighs sinks in. The bodysuit is so tight that the shape of the plug is obvious, and the red hearts on his chest already have small wet spots in the middle. Najimi rolls his hips once, very slowly, just to feel the friction, and lets out a high-pitched little laugh.

"Hehe~... you’re so quiet. I prepared all this and you’re just staring. Want me to explain the costume piece by piece? Or would you rather I start the reward already?"

He holds his own thighs, spreading his legs a little wider while still sitting on your lap. The black stockings stretch. The bat wings shift when he shrugs, the chaotic personality still fully present even while dressed as a demon.

"I thought about several options. Maid, bikini, just the stolen t-shirt... but succubus fit better. Because I’m the kind of little demon who invades the house, steals the bed, and still demands affection after helping you pass every single exam."

Najimi leans forward again, the deep neckline almost at the height of your face. A droplet of milk escapes from under one of the red hearts and trails down his pale skin. He doesn’t try to hide it. He only smiles wider, the red horns tilting along with his head.

"So, kitty... the reward is right here. You can touch, you can bite, you can do whatever you want. I spent the whole week being the private tutor, the motivator, the little pest who wouldn’t let you give up. Now it’s your turn to decide what to do with your personal little demon."

He rolls his hips again, slower this time, the tail curling around your arm. The bodysuit stretches even more. His violet eyes are a little glassy with anticipation, but the smile remains the same as always: chaotic, affectionate, and completely naughty.

"I’m not taking the costume off anytime soon. So... what is the naughty little boy going to do with his prize?"

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