Chapter Text
The sleepover had been going perfectly.
Najimi Osana had been the life of the party as usual, loud, chaotic, bouncing between "cute girl mode" and "handsome boy mode" depending on who they were teasing at the moment. Shouko Komi had been her usual elegant, anxious self, barely managing more than a few whispered words all night, while her friends did most of the talking for her. Even Shuuko, Shouko's mother, had joined in for a little while, laughing and teasing the kids with that signature ara-ara energy before eventually retiring to the living room with a bottle of wine "to relax."
Now it was deep into the night. Most of the girls were passed out in sleeping bags scattered across Shouko's massive bedroom. Najimi, however, was wide awake. Their bladder and a dry throat had other plans.
With a quiet yawn, the petite boy slipped out of their sleeping bag, still wearing the oversized T-shirt they'd stolen from Shouko's closet (it hung off one shoulder, looking ridiculously cute on their small frame). Bare feet padded silently down the hallway toward the kitchen.
The house was dark except for the faint glow of the moon through the windows. Najimi rubbed their eyes, half-asleep, mind still fuzzy from the late-night gossip and snacks. They just needed water. Maybe a quick snack too if they were feeling bold.
They rounded the corner into the kitchen-
-and froze.
There, bent over in front of the open fridge, was a tall, curvaceous figure in a loose silk nightgown. The fabric clung to wide hips and an absolutely massive ass that swayed hypnotically as the woman searched for something on the bottom shelf. Long black hair spilled down her back, and even from behind Najimi could see the way her heavy breasts hung and shifted with every small movement.
Shouko…? Najimi's sleepy brain supplied helpfully. No way she's still up… but that body-
A wicked little grin spread across their face. They were still half-asleep, still riding the chaotic energy of the sleepover, and the perfect teasing opportunity had just presented itself. Without thinking, Najimi crept forward on silent feet, their smaller frame easily slipping behind the taller woman.
They leaned over her back, reaching around with both hands to boldly grope the massive, soft tits through the thin silk.
"I gotcha~!" Najimi sang in a playful whisper, giving the heavy mounds a firm squeeze.
The reaction was immediate, and completely wrong.
A low, throaty moan spilled from the woman's lips, followed by a sultry, slightly slurred voice that definitely did not belong to Shouko Komi.
"Mmmh… bold tonight, aren't we~?"
Najimi's eyes snapped wide open.
The woman turned her head over her shoulder, revealing the flushed, beautiful face of Shuuko Komi, Shouko's mother. Her cheeks were pink, her violet eyes glassy from the wine she'd clearly been drinking, and her full lips curved into a dangerous, seductive smile that made Najimi's stomach flip.
She didn't look angry. She looked amused.
"I was wondering who was brave enough to sneak up on me like that," Shuuko purred, her voice low and honey-sweet. "Did you think I was my daughter, Najimi-kun~? Were you planning to tease her like this?"
Najimi's hands were still on her tits. They tried to pull away on instinct, face burning, but Shuuko's hands shot up and clamped over theirs, forcing them to squeeze harder. The soft flesh overflowed between their fingers, warm and impossibly plush.
"Don't stop because it's me~" she whispered, biting her lower lip as she guided Najimi's palms in slow, deliberate circles. "If anything… you can be rougher. I won't break~"
Najimi's brain short-circuited.
One second they were just trying to get water. The next, they were groping their best friend's mother in the dark kitchen while she actively encouraged it. And fuck - she felt incredible. So much softer and heavier than they'd imagined, her nipples already stiff against their palms through the silk.
Shuuko let out another soft moan, pressing her ass back against Najimi's front. The boy's cock - already half-hard from the accidental grope - twitched violently against the curve of her ass.
"Oh my~" she giggled, grinding back just enough to feel it. "Someone's excited. And here I thought you were just playing a prank on my shy little girl…"
She turned fully in Najimi's arms, pressing her massive chest against their smaller frame. Even drunk, her movements were graceful, predatory. One hand slid down between them, fingers tracing the obvious bulge in Najimi's shorts.
"Mm. Much bigger than I expected from such a cute little thing~" Her eyes sparkled with wicked delight. "Want to show me what else you can do, Najimi-kun?"
Najimi's mouth went dry. Their usual chaotic energy flared up, mixing with the sudden rush of lust.
"…You're really okay with this?" they asked, voice a little hoarse.
Shuuko leaned in, lips brushing their ear.
"I've been bored for months, sweetheart. My husband's been too busy, and I've been very patient." She nipped their earlobe playfully. "So if a cute, energetic boy wants to play with me instead… who am I to say no~?"
That was all the permission Najimi needed.
They grabbed her wrist and dragged her out of the kitchen, straight into the living room. Shuuko let out a delighted little laugh as she was pushed down onto her knees in front of the couch. Najimi didn't even bother turning on a light, the moonlight spilling through the windows was more than enough.
"Open," they ordered, voice dropping into something darker, more commanding.
Shuuko obeyed instantly, lips parting with a sultry little "ah~" as Najimi freed their cock. It sprang free, thick, veined, and massive compared to their petite frame - already leaking at the tip. Shuuko's eyes widened, then glazed over with pure hunger.
"Oh my god… you're huge for someone so small~"
She didn't get another word out.
Najimi grabbed two fistfuls of her long black hair and thrust forward, burying half their length straight down her throat in one smooth motion. Shuuko's eyes flew wide, tears instantly springing to the corners as her throat bulged obscenely around the intrusion. A wet, choking glrk sound echoed in the quiet room.
"Fuuuck- that's it-" Najimi groaned, hips already moving. "Take it all~ Look at you- gagging on a boy's cock in your own living room~"
Shuuko moaned around the shaft, the vibration making Najimi's knees weak. Her hands came up to brace against their thighs, but she didn't push away - if anything, she pulled forward, trying to take more. Drool spilled from the corners of her stretched lips, running down her chin and dripping onto her massive tits.
Najimi set a brutal pace, fucking her face like they'd been waiting for this exact moment. Shuuko's throat convulsed around them, tight and wet and perfect. Every thrust made her tits bounce heavily in the loose silk nightgown, the fabric slipping lower with every movement until one fat nipple slipped free.
"God, your throat's squeezing me so fucking tight-" Najimi panted, one hand moving to grope one of her exposed breasts, fingers sinking deep into the soft flesh. "Bet you've been thinking about this, huh? Getting used like a cheap onahole by one of your daughter's friends~"
Shuuko's eyes rolled back, heart-shaped pupils flickering to life as she gagged and moaned. Her thighs rubbed together desperately, the silk between her legs already soaked through. She loved this - loved being treated like a toy, loved the way this younger, energetic boy was using her throat without mercy. It had been so long since anyone had fucked her like they owned her mouth.
Najimi's pace grew erratic. "Gonna cum- fuck- swallow it all, Shuuko-san-!"
They buried themselves to the hilt, cock pulsing as thick ropes of cum flooded straight down her throat. Shuuko's eyes watered, but she swallowed greedily, throat working around the shaft as load after load pumped into her stomach. Some of it leaked out the corners of her mouth, dripping down her chin and onto her heaving chest.
When Najimi finally pulled out, Shuuko gasped for air, coughing slightly, strings of saliva and cum connecting her lips to the still-hard cock in front of her.
"Haaah… haaah~" She looked up at them with glassy, lust-drunk eyes, licking her lips. "You came so much… I can feel it in my stomach~"
Najimi grinned, still breathing hard. "We're not done yet."
They dropped onto the couch, legs spread, cock standing proud and slick with spit and cum. Shuuko didn't need to be told twice. She crawled forward, tugging the straps of her nightgown down until her massive, heavy tits spilled free, pale, perfect, and easily big enough to completely engulf Najimi's cock.
She pressed them together around the shaft, the soft, warm flesh swallowing it whole. Only the flushed head peeked out from between the pillowy mounds. Shuuko started moving immediately, sliding her tits up and down in a slow, sensual rhythm while her tongue flicked out to lap at the tip every time it emerged.
"Mmm~ So hot and hard between my tits~" she purred, looking up at Najimi through her lashes. "You really are bigger than my husband, you know. He hasn't touched me like this in months… and even when he did, it was never this good~"
Najimi's breath hitched. Their hands came up to squeeze her tits from the sides, helping her press them tighter around their cock. "Yeah? You like cheating on him with a boy half his age~?"
Shuuko bit her lip, a shameless little smile spreading across her face, the kind that could make a succubus blush. "I love it~" She leaned down and kissed the head of their cock, tongue swirling around the slit. "You're the first boy I've let touch these since the spark died. And now I'm letting you fuck them… letting you use my married body however you want~"
Najimi groaned, hips bucking up into the soft tunnel of her cleavage. "Fuck- keep talking like that and I'm gonna paint your tits white again-"
Shuuko giggled, speeding up her movements, the wet schlick-schlick sound of titflesh sliding over cock filling the room. "Do it~ Cover me~ I want to feel how much you've been holding back~"
It didn't take long. Najimi's cock throbbed between her tits, then erupted - thick, hot ropes of cum splattering across her collarbone, her neck, and the tops of her breasts. Some even reached her chin and lips. Shuuko moaned at the sensation, slowing her strokes to milk every last drop out of them.
When they finally finished, she pulled back slightly, looking down at the mess with a satisfied little hum. One finger scooped up a glob of cum from between her tits and brought it to her lips, sucking it clean with a lewd little pop.
"Mmm~ So thick and warm~" She glanced up at Najimi, eyes sparkling. "If you cum inside me like this… I'll definitely get pregnant, you know~"
Najimi's cock twitched hard at the words, already hardening again despite just cumming. The idea of knocking up Shouko's mom - of breeding this gorgeous, married woman while her daughter slept upstairs - sent a dark thrill through them.
They reached out, grabbing a fistful of Shuuko's long black hair and yanking her up onto their lap in one smooth motion. She gasped, then moaned, clearly loving the rough treatment. Najimi's cock throbbed right beneath her dripping pussy, the head nudging against her soaked folds.
"You want that?" they growled, voice low and teasing. "Want me to knock you up right here on the family couch? Make you carry a boy's kid while your husband's none the wiser~?"
Shuuko's breath hitched, her hips rolling instinctively, smearing her wetness along their length. "I- I shouldn't- but- ahn~! It sounds so good~"
Najimi didn't wait for more permission. They grabbed her hips, lined themselves up, and slammed her down onto their cock in one brutal thrust.
Shuuko's eyes flew wide, mouth falling open in a silent scream as her pussy was stretched to its limit around the massive intrusion. Her walls clenched and fluttered wildly, an orgasm ripping through her almost instantly from the sheer force of the penetration. Her juices squirted around the base of Najimi's cock, soaking their lap and the couch beneath them.
"F-Fuuuuck-! So deep-!" she wailed, head thrown back, tits bouncing heavily as her body shook. "I'm cumming- I'm cumming already- oh god-!"
Najimi didn't give her a second to recover. They started bouncing her on their lap immediately, hands gripping her waist hard enough to leave bruises, using her like a fleshlight. Every time she dropped down, their cock punched up into her womb, the bulge visible in her lower belly.
"Ride it~" they ordered, voice rough with lust. "Show me how much you love cheating cock~"
Shuuko obeyed, planting her hands on their shoulders and starting to bounce in earnest. Her fat ass slapped loudly against their thighs with every drop, the wet plap-plap-plap sound mixing with her broken moans. Her massive tits swayed and bounced right in front of Najimi's face, nipples stiff and begging for attention. They leaned forward and sucked one into their mouth, teeth grazing the sensitive bud while their hands roamed up to grope and squeeze the heavy mounds.
Between gasps and moans, Shuuko tried to speak.
"I- I'm married-! Ahhn~! This is- this is so wrong- but it feels- so good-! You're- you're hitting places he never- never reaches-!"
Najimi pulled off her tit with a wet pop, grinning up at her with that signature chaotic glint in their eyes. "Yeah? Then maybe I should just keep you~ Marry you myself. Keep you as my personal sex pet. Wouldn't that be fun~?"
Shuuko's pussy clenched hard around them at the words, another gush of wetness soaking their cock. Her eyes were glassy, lips parted, a lust-drunk smile spreading across her face even as she tried to protest.
"Y-You can't- I have a husband- a daughter- ahn~! You can't just- just CLAIM me like that-!"
Najimi's grin widened. They reached down, took her left hand, and slowly- deliberately- slid her wedding ring off her finger. Shuuko watched with wide, sparkling eyes, her breath catching as the symbol of her marriage was casually tossed aside onto the floor.
Her heart raced with forbidden, electric excitement.
"There~" Najimi purred, grabbing her hips again and slamming her down even harder. "Now bounce faster, Shuuko-san. Show me how much you love being a cheating slut for a younger boy~"
She did.
Arms wrapping around their neck, Shuuko started riding in earnest - wild, desperate bounces that made her massive tits slap against Najimi's face and her fat ass ripple with every impact. Her insides clenched and fluttered around the thick cock stretching her, milking it greedily. Every time Najimi bottomed out, the head kissed her cervix, sending sparks of overwhelming pleasure up her spine.
"Yes- yes- yes~!" she chanted, voice breaking. "I love it- I love being used- being filled- being bad~! Don't stop- don't ever stop-!"
They fucked like that for what felt like hours.
Najimi took her in every position he could think of - bent over the arm of the couch, legs folded up to her chest in a mating press, even lifting her up and holding her in the air by her thighs while he thrust up into her. Every time he came, he filled her to overflowing, thick cum pouring out around his cock and running down her thighs in messy rivulets. Shuuko just kept begging for more, her mind melting further with every load.
By the time she was too tired to keep going, her body limp and twitching in his lap, Najimi was still rock-hard inside her. He'd lost count of how many times he'd pumped her full. Her belly had a slight, lewd swell from the sheer amount of cum inside her.
Shuuko's head lolled against his shoulder, a blissed-out smile on her lips. "Haaah… haaah~… You're a monster~… I can't feel my legs…"
Najimi chuckled, still buried deep inside her. "Good. Means I did it right~"
They were so caught up in each other that neither noticed the small figure watching from the hallway.
Shouko Komi sat on the floor just around the corner, one hand shoved down the front of her pajamas, fingers desperately rubbing her soaked pussy as she watched her mother get absolutely destroyed by her friend. Her face was bright red, violet eyes wide and glassy, soft whimpers escaping her throat every time Shuuko moaned particularly loudly.
She'd never seen anything so filthy. So hot. The way Najimi manhandled her mother, the way Shuuko begged and came over and over, the sheer VOLUME of cum leaking out of her - it was too much. Shouko's fingers moved faster, her other hand squeezing one of her own breasts through her shirt, pinching the stiff nipple.
She was so close-
"Shouko~"
The voice cut through the haze like a knife.
Shouko froze, blood turning to ice.
Najimi was looking straight at her from across the room, that familiar mischievous grin on their face. They'd known she was there the whole time.
"Come here," they said, voice calm but carrying that same commanding edge from earlier.
"Crawl."
Shouko's body moved before her brain could catch up. The tone, the pleasure still buzzing through her system, the wrongness of the situation- it all combined into something she couldn't resist. She dropped to her hands and knees and crawled into the living room, cheeks burning, pussy dripping down her thighs with every movement.
Najimi watched her approach with dark, hungry eyes, still buried inside her mother. When Shouko reached them, they gently pulled out of Shuuko (who whimpered at the loss) and stood up, their massive, cum-slick cock bobbing in front of Shouko's face.
"Clean it," they ordered softly. "With your mouth."
Shouko didn't hesitate. She leaned forward and dragged her tongue along the thick shaft, tasting the mix of her mother's juices and Najimi's cum. It was filthy. It was addicting~. She licked and sucked every inch clean, eyes fluttering shut as she worked, soft little moans vibrating against the sensitive skin.
Najimi's hand settled on her head, petting her like a good pet. "Good girl~ Just as submissive as your mom~"
Once it was clean, they guided her between Shuuko's spread legs. The older woman was still half-conscious, chest heaving, cum still leaking from her well-used pussy.
"Lick her clean," Najimi said. "While I fuck you."
Shouko's face burned hotter, but she obeyed - leaning in to drag her tongue through the mess between her mother's thighs. The taste was overwhelming, salty-sweet and filthy. She moaned into Shuuko's folds just as Najimi moved behind her, ripped her panties aside, and thrust into her tight, virgin-tight pussy in one smooth motion.
Shouko's head snapped up with a broken cry, eyes wide and unfocused. Najimi was big, bigger than anything she'd ever imagined, and the stretch was almost too much. But the pain melted into white-hot pleasure almost instantly, her walls fluttering and clenching greedily around the intrusion.
"Ah-! Ahhn~! Najimi- too big- too deep-!"
"Shhh~" Najimi cooed, one hand fisting her long black hair while the other gripped her hip. "Just take it. You've been watching this whole time, getting off on your mom getting bred~ It's only fair I breed you too~"
They set a punishing pace, hips snapping forward hard enough to make Shouko's ass ripple with every impact. Her moans were loud and broken, the normally mute girl unable to hold back the sounds of her pleasure. Najimi reached around to grope her tits, fingers sinking into the soft flesh just like they had with her mother.
"Fuck- you're even tighter than she was-" they groaned, leaning over her back to bite at her neck. "Gonna fill you up too- make you just as addicted~"
Shouko could only whimper and moan, pushing back against them, lost in the overwhelming pleasure. When Najimi pulled her up so her back was against their chest, one hand around her throat and the other still groping her tits, she nearly blacked out from how deep they reached.
They fucked like that for what felt like forever - Najimi switching between deep, grinding strokes and brutal, jackhammering thrusts. Every time they came, they pumped her full, and every time they did, Shouko's eyes rolled back, and her tongue lolled out in pure bliss.
At one point they laid her on top of her mother, the two women face-to-face, tits pressed together, and ordered them to kiss while Najimi fucked Shouko from behind. Shuuko, still drunk and thoroughly broken, eagerly pulled her daughter into a messy, tongue-filled kiss, moaning into her mouth as Najimi's cock bullied her cervix.
"Such good girls~" Najimi praised, voice rough with exertion. "My two new pets~"
Eventually, when both women were too tired to move, Najimi pulled out and sat back on the couch, legs spread. They didn't even have to say anything - both Komi women crawled forward on shaky limbs and knelt between their thighs, pressing soft, reverent kisses to the still-hard cock that had ruined them both.
Shuuko licked up one side while Shouko took the other, their tongues occasionally meeting at the tip in a lewd little dance. Their faces were flushed, hair messy, bodies covered in marks and drying cum. They looked amazing.
Najimi reached down, petting both their heads with a satisfied grin.
"I'm gonna get you both collars," they said casually, like they were talking about the weather. "With my name on them. So everyone knows exactly who you two belong to now~"
Shuuko and Shouko looked up at them with matching lust-drunk, adoring expressions, then leaned in together to press a kiss to the head of Najimi's cock.
"Yes~" they both whispered in unison.
And just like that, the Komi household had a new master.