Akari arrived on a Friday afternoon with a pink suitcase and a smile that could melt snow.
Twenty-two, university senior, long black hair in a high ponytail, and a body that made even Reiko's generous curves look modest: tiny waist, breasts that strained every button of her cardigan, and an ass poured into skin-tight jeans. She hugged Haruki at the door so hard her tits pressed fully against his chest.
"Missed you, big cousin!" she chirped, completely oblivious to the way his cock jumped against her stomach.
Reiko greeted her in the genkan with warm eyes and a knowing little smile. Takeshi was "working late" (a lie they all silently agreed on).
Dinner was normal. Mostly.
Akari chattered about campus, exams, her useless boyfriend who "couldn't find a clit with GPS." Haruki laughed too loud. Reiko's foot found his under the table and stroked slowly up his calf.
By 10 p.m. Akari announced she was exhausted from the train and headed upstairs to shower.
The moment the bathroom door clicked shut, Reiko was on Haruki in the hallway—back against the wall, skirt hiked up, panties yanked to the side.
"Quick," she whispered, guiding his cock inside her already-soaked pussy. "Before she comes out."
Haruki fucked her hard and fast, one hand over her mouth to muffle the moans, the other squeezing her breast through her blouse. Reiko came in under two minutes, biting his palm, walls fluttering wildly around him. He followed right after, pumping her full with thick, desperate spurts.
They were just straightening clothes when the bathroom door opened.
Akari stepped out in a tiny towel—barely covering her ass, breasts spilling over the top, skin flushed pink from the heat. Water droplets slid down her cleavage.
She froze.
Reiko's face was still flushed, lips swollen. Haruki's sweatpants did nothing to hide the half-hard bulge.
Akari's eyes went wide… then hooded.
"Oh," she said softly. "So that's why Aunt Reiko always sounds so happy on the phone."
Reiko opened her mouth to explain—then closed it.
Akari let the towel drop.
Completely naked. Perfect, perky tits with pale pink nipples already hard. Smooth, hairless pussy glistening—not just from the shower.
"I broke up with that loser last month," she said, stepping closer. "Turns out I've been jealous of Aunt Reiko this whole time."
She dropped to her knees in front of Haruki, tugged his waistband down, and took his cum-slick cock into her mouth without another word.
Reiko watched, biting her lip, hand already slipping between her own thighs to rub the mess Haruki had just left inside her.
Akari sucked like she was starving—deep, sloppy, moaning around him, tasting her aunt on her cousin's dick and loving it. When Haruki groaned and threaded fingers through her wet hair, she pulled off just long enough to gasp:
"Use me like you use her."
That was all it took.
They never made it to a bed.
Haruki bent Akari over the hallway table—right under the family photo—and slid into her from behind in one thrust. She was impossibly tight, scorching hot, back arching as she pushed back to meet him.
Reiko knelt in front of her niece, spread her legs, and guided Akari's mouth to her dripping pussy.
"Clean up your cousin's mess, sweetheart," she purred.
Akari licked eagerly—tongue delving deep, swallowing every drop of Haruki's cum from her aunt's cunt while Haruki pounded her from behind, balls slapping against her clit.
The three of them moved like they'd been doing this for years.
When Takeshi came home an hour later, he found his wife riding their son on the living-room floor while their niece sat on Haruki's face, grinding shamelessly, both women kissing over his chest.
Takeshi didn't even take off his coat.
He just unbuckled his belt and joined in.
That weekend, the guest room stayed empty.
Akari slept between Reiko and Haruki—sometimes with Takeshi on the other side—waking every few hours to whichever cock was hard and ready.
By Sunday night she was walking bow-legged, pussy swollen and constantly leaking, nipples red from constant attention.
As the train pulled away from the station, Akari texted the family group chat (newly created and already full of nudes):
next break is golden week ♡
tell uncle takeshi to stock up on condoms… or don't ♡♡♡
Reiko read it aloud to Haruki and Takeshi while riding her husband on the couch, Haruki's cock already waiting its turn between her breasts.
They all agreed: Golden Week couldn't come soon enough.
The old family home in the countryside had never been so full.
Obon eve. Paper lanterns glowed along the path. The ancestors' altar flickered with candles and incense.
And in the largest room—tatami cleared, one massive futon spread wall-to-wall like a sea of white—twelve members of the extended family were very much alive.
Reiko lay in the center, naked and glowing with sweat, thighs spread wide as Haruki slowly, reverently thrust into her. Takeshi knelt by her head, cock sliding lazily between her lips while she moaned around him.
Around them, the reunion unfolded like a dream none of them wanted to wake from.
Cousin Akari was on her back beside Reiko, legs over her older brother Kenji's shoulders while he pounded into her with desperate, drunken strokes—both of them whispering "onee-chan" and "onii-chan" like prayer.
Aunt Yumi (Reiko's forty-six-year-old younger sister, the one with the legendary hips) rode her own son Daichi reverse-cowgirl, massive breasts bouncing as she taught him exactly how deep Mommy liked it.
Uncle Hiroshi (Takeshi's older brother, recently divorced) had his face buried between his niece Mei's thighs while Mei and Akari kissed messily above him, fingers tangled in each other's hair.
Cousin Rina—nineteen, shy, and deceptively innocent—knelt in front of her father (Reiko's cousin Tetsuya), taking him down her throat for the first time while her mother stroked her hair and cooed encouragement.
Every combination happened, again and again.
Haruki pulled out of his mother and was immediately pulled into Akari's arms—she wrapped her legs around him and guided him home with a filthy grin. Reiko rolled over, straddled Yumi's face, and rode her sister's tongue while Takeshi took Yumi from behind.
Someone started the train: a perfect circle on the futon—mouth to cock, cock to pussy, pussy to mouth—slowly rotating as the night deepened.
By 2 a.m. the room smelled of sex, sweat, and incense. Cum-streaked thighs, swollen lips, bite marks on every breast and shoulder.
Reiko found herself in the middle again—Haruki beneath her, Takeshi behind her, both inside her pussy at once, stretching her impossibly full while Akari and Yumi took turns licking where they joined.
She came so hard she saw stars, squirting over Haruki's stomach while her husband and son filled her to overflowing.
When the first rooster crowed at dawn, they finally collapsed in one exhausted, sticky pile—no one sure whose limb belonged to whom, only that they all belonged together now.
Reiko's voice was hoarse as she kissed Haruki's temple, then Takeshi's lips, then reached out to pull Akari and Yumi closer.
"Next year," she whispered, "we book the entire ryokan."
Twelve voices murmured sleepy agreement.
The ancestors on the altar kept their candlelit silence.
They already knew blood ran thicker than water—and tonight, thicker than cum.
(The End… until next Golden Week.)