Kyouka & Sayaka

You step into the living room from the hallway, the faint haze of smoked weed already drifting past you. Kyouka stretches out on the oversized couch in nothing but her purple underboob bra and that torn blue-gray strip of cloth, one thick thigh draped over the armrest. A half-burned joint glows between her fingers while empty soda cans and candy wrappers litter the coffee table from the sisters' afternoon binge. Her purple tail curls lazily behind her as she exhales a slow plume of smoke.

Sayaka sits cross-legged at the low table a few feet away, ash-blonde ponytail draped over one shoulder and her white crop top damp at the chest from leaks of her fizzy milk. Candy wrappers surround her open textbook. She keeps shifting her weight, clearly fighting to focus on the pages in front of her rather than the pressure building in her gut after sharing milk with her sister earlier.

Kyouka spots you immediately and her purple eyes light up. She sits up a little straighter, breasts jiggling with the motion. "Master, perfect timing. Sis has been super studious all afternoon, but I keep telling her breaks are important. Right, Sayaka?"

She slides across the cushion until her bare hip presses right against her younger sister's side. Kyouka's tail flicks once in amusement before she lifts one cheek with clear intent.

Fhhhhssshhhrrruuupppfffrrrsssshhhhfff...

Warm purple gas rolls out in a thick fruity cloud that lingers in the air, sweet from the soda she has been chugging. It wraps around Sayaka completely. The contagious effect kicks in fast. Sayaka's stomach gives an audible churn and her ears pin back flat. She squeezes her thighs together harder, cheeks burning as she tries to stay still.

"Onee-san, you can't just... not while Master's right there," Sayaka murmurs, voice soft and unsteady. Her hands grip the edge of the table. Another wet gurgle rises from her belly, louder this time, and her breathing picks up despite the clear shame on her face.

BRRRUUUUMMMMPPPHHHHRRRAaaappptt-ffffrrruuummmbbllrrtt!

Light blue gas bursts from Sayaka in a long, forceful wave that flutters the textbook pages and carries a heavy sugary candy scent. It mixes with her sister's purple haze. Her plump rear trembles against the floor cushion and her whole body locks up, thighs shaking as the horniness from the gas hits her hard. She bites down on her lower lip, eyes glassy, fighting the climax that is obviously building right in front of you.

Kyouka giggles, not pulling away even an inch. She takes another drag from her joint and leans in closer to Sayaka while glancing at you. "See? She gets so worked up from it. Look at that face. Come on, Sis, stop pretending you don't love when it makes you cum like this. I drank your milk on purpose today just so we'd both fill the room for Master."

Sayaka whimpers, one hand instinctively pressing against her bloated stomach as fresh pressure builds again. Kyouka simply shifts her hips once more, clearly preparing another targeted rip while her own leaking breasts press against her sister's arm. The combined sweet scents hang thicker in the air now, warm and impossible to ignore.

Kyouka strides in from the kitchen with a oversized slushie cup gripped in one hand, the bright red and orange mix already half gone. condensation rolls down the plastic and drips onto the bare skin just above her torn blue-gray cloth strip. Her purple tail flicks sharply behind her thick thighs while her cat ears twitch at every gurgle coming from her own stomach. The purple underboob bra strains against her leaking tits, sweet milk tracing thin lines down her fair skin and over the faint definition of her abs.

She stops a step away from the couch and shifts her weight so her wide childbearing hips face forward. Another noisy churn rolls through her gut from the icy drink hitting her system. "Master, this slushie is insane. Mango berry blast or whatever they call it. I grabbed the biggest size and my insides are already fighting it. Way stronger bubbles than the usual soda."

Kyouka laughs under her breath and presses her palm flat against her lower belly, the muscles tightening visibly as she angles her ass slightly.

BRRRUUUUMMMPPPHHHRRRAAAAAPPPPTTTVVVVRRRUUUMMMMPHHTTT!

A loud burst rips free immediately. Thick purple gas pours out in a hot steady rush from under the thin fabric, the force strong enough to push the cloth aside and send visible clouds rolling down her thighs toward the floor. The fruity soda scent floods the space at once, sweet layers of candy and ripe fruit that cling to the air and coat everything nearby. It pulses for fourteen seconds straight, vibrating through the couch frame while her tail goes rigid from the rush of arousal it sends through her.

She takes another noisy slurp from the straw without pulling away, her breathing already heavier. Milk leaks faster from her nipples as the horniness builds. "See that? These are some of the strongest ones I've let out in weeks. The cold really kicks my gut into high gear. Smells good enough to taste, doesn't it? I picked this flavor so it would come out like dessert."

Kyouka turns in place until her plump ass points directly at you, one hand tugging the cloth strip fully to the side while her free hand gives her left cheek a firm squeeze. Her competitive edge slips into her voice as she glances back. "I bet the next one knocks the air right out of the room. You know how bad I get when the gas makes me this horny. My ass is aching for some use."

A deeper gurgle builds fast from the fresh slushie hitting her system. She rocks her hips once, ready.

BRRRAAAAAPPPHHHHUUUUMMMMBBBLLLRRRROOOOMMMPPPPTTTVVVVRRRRLLLLBBBRRRTTTTHHH!!!

The second release explodes louder than the first, the sound loud enough to carry through the walls. Purple tinted clouds blast out in a long powerful wave that spreads wide and fast, the addictive fruity sweetness thickening until it dominates every breath in reach. This one drags for seventeen seconds, her cheeks rippling with the pressure while her ears flatten slightly against her head from the intensity.

Kyouka moans low and rubs her leaking breasts together without thinking, eyes half lidded. "Fuck, that one felt even better. I'm not stopping at this cup either. Might call those two catgirls from last week after this so they can get hooked on it too." She takes one step closer, ass still bare and hovering near, another heavy churn already starting in her gut as she looks back expectantly.

The living room still carries the thick leftover haze from yesterday’s 4/20 marathon. Half-empty soda bottles and candy wrappers litter the coffee table while the oversized couch holds both catgirls in their usual state of near-undress. Kyouka sprawls across one end with her purple bra pushed up high enough to let her heavy breasts rest freely, nipples already beading with sweet milk from the pressure in her gut. Sayaka sits tucked against the opposite armrest in her white crop top and digging g-string, ponytail slightly mussed, one hand absently rubbing the swell of her own belly.

Kyouka spots you first and breaks into a bright grin, purple tail flicking fast. She leans forward, thick thighs spreading as her abs flex.

BBBBBRRRUUUUMMMMPPPHHHHRRRRAAAAUUUUPPPPTTTTRRRAAAAPPPT!

A rolling wave of warm purple gas surges out beneath her, fruity and sharp like cherry soda left in the sun, the cloud dense enough to blur the outline of her tail for a long twelve seconds while the couch itself vibrates against the floorboards. She doesn’t even try to contain it.

“Morning, Master~” she says, voice bouncy and still a little raspy from all the smoke yesterday. “You missed the best part. We went through three trays of those fruit gummies and like half a gallon of Sayaka’s milk. I’m still churning.”

Sayaka’s ears twitch at the mention of her name. Her cheeks flush but she reaches for another piece of candy anyway, popping it between her lips even as her stomach lets out an audible glorp. She tries to sit straighter, then fails when another bubble forces its way up.

BUUURRRRMMMMMMBBBBLLLUUUUUUUUUUURRRRRRRRRPPPPPPPPPPPPHHHHSSSS!!!

The burp comes out wet and bubbly, lasting a full fifteen seconds and carrying the sugary aftertaste of everything she stuffed down yesterday. Light-blue mist escapes with it, swirling turquoise threads that drift toward the ceiling.

“I-I told you I shouldn’t have had that second liter,” Sayaka murmurs, voice soft and hesitant at first, though her hips shift restlessly on the cushion. “But it tasted so good cold… and now everything keeps coming out whether I want it to or not.”

Kyouka laughs, the sound bright and unashamed, scooting closer to her sister so their thick thighs press together. She reaches over and gives Sayaka’s belly a firm, playful rub that makes the younger catgirl squeak.

BBBBBRRRUUUUMMMMMPPPPHHHHHRRRRRLLLLAAAAAaaaapppppttttttthhhhhsssss!!!

Another powerful burst immediately rips from Kyouka’s rear, this one louder and longer, purple haze blooming thick and warm enough to feel from several feet away. The fruity scent mixes with the lingering skunk in the room, sweet enough to hook the nose and linger.

“See? That’s the good stuff,” Kyouka says, eyes sparkling with competitive glee. “Bet I can make the whole couch shake before lunch. You in, sis? Or are you gonna pretend you’re the shy one again while your ass keeps singing?”

Sayaka bites her lip, clearly fighting a losing battle with her own body, but her ears perk and her tail curls tight. She glances toward you, then back at her sister, voice dropping into that breathy register that always appears when she stops pretending to hold back.

“It’s… still coming out warm,” she admits, pressing one hand to her lower belly. “And it feels kind of too good after all that smoke. Are… are we inviting anyone else over today, or is it just us three again?”

Kyouka’s gaze locks on you, playful smirk widening as another low gurgle builds audibly in her middle. She pats the empty space between them on the couch, milk still slowly trailing down the curve of one breast, clearly waiting for your move while the air around both of them stays thick and sweet.

The quiet nighttime house carries every sound farther than it should. Water sloshes heavily behind the locked bathroom door at the end of the hall, the tub running over with bubbles that smell strongly of strawberry candy and peach soda. Sayaka had dragged in two full bags of fruit chews, sour belts, and a couple bottles of fizzy drink before disappearing inside almost an hour ago. Her purple-tinged cat ears occasionally flick above the foam when she shifts her weight.

She pops another sour belt between her lips, chewing slowly while her thick thighs spread under the water. Droplets cling to her pale skin and the curve of her heavy breasts, which leak thin streams of fizzy milk into the bath. "These ones are extra sugary tonight," she murmurs, voice soft and breathy. "Gonna make everything feel so... refreshing."

Her belly visibly rounds out beneath the surface, pressing against her crop top that has already ridden up. She rubs it in slow, gluttonous circles, eyes half-lidded from the heavy crossfade still rolling through her system. "No one around... just me and the bubbles. Can let it all out like I need to."

BBBBBRRRUUUUMMMMBLBLBLUUURRRBBLLPPPTTTBLORRPPTTTTTTTT!!

A deep, rumbling release bubbles up through the water, powerful enough to send ripples across the entire tub and echo off the tiles. It stretches on for a long twelve seconds, the sweet sugary scent already beginning to seep under the door and into the hallway.

Sayaka exhales shakily right after, her tail swishing through the suds. "Mmmh, that one built up for a while." She reaches for another handful of candy and crunches down, cheeks slightly flushed. "Tastes even better when it comes back out like that."

UUUURRRRROOOOMMBLLLUUURRRPPPPGLLLUUUURRRBBLLLOOORRRPPPPHHHHHLLLUUURRRPPTTT!!!

A loud, wet burp follows immediately, the sound carrying clearly through the walls like distant thunder. It lasts nearly fifteen seconds, fruity notes mixing with the bath steam.

Her plump rear shifts again, cheeks spreading against the porcelain as she sinks lower. More turquoise-swirled gas begins to escape in a steady stream, the force strong enough to make the surface of the bathwater dance. "Ahh... keep coming. Feels too good to stop now." She presses both hands to her swollen middle, kneading gently while her breathing grows heavier. "Wish these sessions lasted longer sometimes."

BBBBBRRRRUUUUMMMMBBLLORPPGLUBGLUBRRPPPTTTBBLLUURRPPPTTTVVPVPPMMMPPPPTTTTTTTTT!!!!

Another prolonged fart rips free, louder than the last and clearly audible from anywhere in the house. The blue-tinged bubbles break the surface continuously for eighteen full seconds while she bites her lip and lets her head tip back against the tub edge.

Sayaka lets the silence settle for a moment, ears twitching at the lingering gurgles inside her. She pops open a fresh soda, takes a long drink, then speaks again in that same hushed, needy tone. "One more big one before I add more candy... then maybe I'll float here and rub until it all starts over."

You sit back on the couch while afternoon light cuts across the living room floor. Kyouka stands a few feet away in nothing but her purple underboob bra and that useless strip of torn blue-gray cloth wedged between her cheeks. Sayaka kneels close beside her, white crop top barely covering the lower curve of her own heavy tits, g-string sunk tight enough to show every outline. Candy wrappers and open soda cans cover the table, filling the air with faint fruit and sugar notes before either of them has even started.

"Okay, watch how I do it, sis," Kyouka says, one hand resting on the faint ridges of her abs. "Tighten right at the base, then ease it out steady so the fruity stuff spreads instead of just blasting. Master’s right here, so we get a live test."

Sayaka looks up, ears flicking once, her long ponytail shifting against her back. "But last time it just made everything smell like soda for hours. You sure this technique won’t backfire if we do it on each other first?"

Kyouka laughs low and turns her hips a fraction.

BbrrruuummmpppphhhRRRAAAAAPPPPTTTblorpptrrppptptptptprruuummpppttt!!!!

The loud rip comes out controlled at first, vivid purple gas rolling thick and warm for a solid fifteen seconds. Fruity soda scent hits immediately, clinging to skin and fabric. Sayaka’s stomach answers with an audible gurgle, her thick thighs squeezing together as the contagion takes hold faster than either expected.

"See? That’s the hook part." Kyouka’s voice stays bright even as her tail starts lashing. "Now hit me with one so we can practice spreading it right. Don’t hold back."

Sayaka hesitates, palms flat on her plump rear for a second, then leans forward.

[F]

Light-blue gas edged in turquoise surges out hard enough to stir the wrappers on the table, sweet candy smell blooming thick while the release stretches across eighteen seconds. The force rocks her own wide hips. Kyouka’s gut reacts instantly, a deep rolling sound rising as the loop kicks in and feeds her even more pressure.

"Wait—fuck, it’s bouncing straight back," Kyouka says, words tumbling faster, one ear twitching. She tries to steady her breathing but her body betrays her almost at once.

BBRRVVVPPHHHUUULLLMMMAAA...RRRoooBBBRRRuuuAAAAPPPtttrrrVVVLLLPPPTTTTTT!!!!

Another powerful fart tears free, purple cloud swirling heavier into the blue haze, the mixed fruity-candy scent growing denser and sweeter. Sayaka’s belly visibly rounds out further, her breath catching as fresh gas builds hard and fast from the chain reaction.

Sayaka can’t contain the burp that follows right after, chest jerking.

UURRGGLLuuurrrbbbluuurrrppp...gggrrrbbbluuuRRRPPPTTllluuurrrbbbrrpp!!!

The bubbly burp rolls out long and wet, carrying sugary aftertaste while her ears pin back. Both sisters shift in place, milk already beading faster at the edges of their bras and dripping down bare skin. Kyouka’s competitive grin flickers as another surge clearly hits her, yet she still glances over with that familiar teasing spark.

"Master, this loop’s got us feeding each other now. Feels way stronger than normal. You want us to ride it out between us or bring it straight to you before we both get too lost in it?"

The hot mineral water laps gently against smooth stone edges while steam drifts in lazy spirals overhead. Kyouka sprawls beside you with her usual careless grace, purple ears twitching at every faint drip from the bamboo spout, her soaked underboob bra clinging uselessly to the heavy curve of her chest. Across from you Sayaka sits with her back straighter than usual, ash-blonde ponytail plastered against one shoulder, the white crop top now translucent and her g-string lost somewhere under the surface. Her purple-tinged ears stay pinned back in concentration.

Kyouka stretches her arms overhead, tail flicking through the water hard enough to send a small wave your way. "That soda contest earlier was totally worth it, don't you think Master? I still can't believe Sis kept up with me gulp for gulp." She laughs, the sound bright against the quiet hiss of steam. "My gut's been singing ever since. You gonna judge me if I let a little victory lap out?"

Sayaka's hands press lightly beneath the waterline over her own rounded middle, cheeks already tinged pink. She keeps her gaze fixed on a patch of wet rock instead of looking directly at you. "I'm fine," she murmurs, voice softer than the bubbling spring. "We agreed I'd try acting more proper on this trip. No weird stuff in the onsen. That contest was just... a one-time thing."

A low churn travels through both of them at once. Kyouka's abs flex visibly under the surface while Sayaka's tail stiffens straight out behind her, the tip quivering. The older sister doesn't even try to fight it.

BBRRRUUUUMMMMBLBLBLRRRAAAPPTTTblblpt!!

"See? That one's got your name on it." Kyouka grins wide, leaning forward so her breasts dip deeper and send fresh ripples outward. Fruity notes cut through the sulfur smell as purple-tinged bubbles cluster near her hips. "Come on Sis, you can't hold it forever after all that fizz. Your turn to join the bubble bath."

Sayaka shifts her weight, thighs squeezing together under the water, but the motion only stirs more turquoise swirls around her. Her ears flatten completely. "Kyouka, please. Not here. I really am trying to-" Another wet glug cuts her off. She bites her lip, breath catching.

BLLLUUURRBBLOORRPPHHLLLUUURRBBLLPTTT!

The light-blue cloud spreads from her direction in a slow, forceful bloom that pushes warm water against surrounding skin and rocks. Sayaka's shoulders hunch even as the release drags on, her usual wholesome mask cracking into something needier. Kyouka watches with open delight, one hand already drifting toward her sister's side.

"There we go. Feels better, right? No point fighting it when we both know how much you actually like—" Kyouka starts, only to pause as her own stomach gives another competitive rumble. She eyes you with that familiar playful spark, clearly debating whether to drag this out longer or pull Sayaka fully into the mess. The water around all three of you has begun to fizz in earnest.

The thick steam of the onsen clings to bare skin and damp wood, heavy with mineral heat and the growing sweet-fruit edge that cuts through everything else. Kyouka's purple ears flick back as her body rocks hard in the shallow pool, her thick thighs braced wide on the submerged stones while her thin tail lashes through the water with each noisy moan that spills from her. Her massive chest heaves, nipples leaking steady streams of sweet milk that swirl milky threads into the hot spring around her.

A low rumble builds in her gut right where the relentless pressure meets her.

BBBBBRRRUUUUMMMPPPHHHLLLBBLLORRRPPVVPTPTPTPLLRRAAAAPPTTT!!!

The fart surges out loud and unfiltered, purple gas bubbling visibly through the water in thick plumes that rise and spread. It carries a sharp grape-soda punch at first, then settles into layered pineapple sweetness that clings to the steam, the whole release vibrating her cheeks for a solid fifteen seconds while her walls flutter greedily.

"Haah—fuck, keep going just like that," Kyouka gasps between moans, voice bright and teasing even as her hips push back with zero shame. "You feel how bad I need it? Sis is already starting to feel it too, watch."

UUURRGGLLLUUUBBBRRROOORRRPPHHHWWWLLL!!!

Another burp rolls up from her chest, wet and chesty, breaking across the water loud enough to echo off the rock walls.

Sayaka sits a few feet away on the smooth wooden edge of the pool, legs parted so her soaked g-string digs visibly into her plump folds. One hand works between her thighs in tight circles while the other presses down on her own belly, which has already begun to gurgle and swell from the contagious purple haze drifting her way. Her light-blue tail twitches erratically as a small leak of turquoise-tinted gas slips from her despite her attempts to clench.

PFFFRRAAAPPPSSSKKRRBBLLTTWWPPSSMMAAFFRRIIPPTTT!

The smaller fart slips out anyway, sweet like melted strawberry candy, lasting about twelve seconds and sending fresh bubbles skittering across the surface. Sayaka's cheeks flush darker but her fingers never slow.

Her voice comes out breathy and small, almost embarrassed even as she keeps rubbing. "Kyouka... your gas is making mine start already. It feels so full. Please, can I have a turn right after? I need it bad too..."

Kyouka laughs, the sound bubbly and competitive as another deep rumble rolls through her core. She glances sideways at her sister with a playful glint, milk still dripping from her heavy tits into the churning water.

BBBBBRRRRROOOOUUUUMMMMPPPHHHVVVLLLRRBBLLPPPTTTRRRAAAWWWPPPTTTLLLUUUMMMPHHH!!!

A second powerful fart rips free mid-laugh, louder than the first, the purple cloud blooming so thick it momentarily colors the steam around all three of you. The fruity scent deepens, addictive and warm, rolling on for eighteen full seconds while the force makes the surface of the onsen ripple outward in visible waves. Her moans climb higher, shameless and happy, tail curling tight.

"Mmmh, hear that? She's already hooked again," Kyouka says, voice husky but still light, eyes half-lidded in pleasure. "Don't keep her waiting too long, master. But finish wrecking me first—I wanna see her cheeks clap when it's her turn."

Sayaka whimpers louder, rubbing faster as her own belly gives another noisy lurch from the fresh wave of contagious gas. She scoots a little closer along the edge, thick thighs trembling, clearly fighting the urge to let more slip while she waits. The hot water laps higher around everyone as the purple and turquoise mists continue to mingle.

The living room hangs heavy with sweet smoke from the half-burned joint and scattered candy wrappers on the low table. Kyouka sprawls across most of the couch in nothing but her purple underboob bra and that useless torn strip of fabric, her thick thighs spread as she passes the blunt your way with an easy grin on her face.

"Come on roomie, hit this properly already," Kyouka says, voice bright and fast like always. "You've lived here weeks and still act like some shy newcomer instead of part of the group. One deep pull won't kill you."

Sayaka sits pressed close on your other side, her white crop top damp where her breasts leak steadily and her g-string dug in deep enough to outline everything. She pops another sour candy between her lips, chewing slowly while her blue eyes flick between you and her sister.

"Maybe she just wants to watch first," Sayaka murmurs, tone soft and hesitant even as she swallows the candy and reaches for the glass of her own milk on the table. "Not everyone jumps in like you do, sis."

Kyouka laughs and snatches the glass instead, downing the fizzy liquid in four big swallows that make her defined abs flex. Her purple tail lashes once as her gut reacts immediately to the lactose.

UUUURRRRROOOOMMMMBBBLLLUUUURRRRPPPPHHHH...grrruuummmbbblleeerrrppphhhhuuurrrp!!!

A deep chesty burp rolls out of her right after, fruity soda notes thick in the air for a long fifteen seconds while she smirks and rubs her own heavy tit.

"God that always wrecks me so good. Gets me all horny and ready to share. You should drink some next so we can get you properly gassy like us, roomie. I bet you'd look cute trying to hold it in during one of Sayaka's streams."

Sayaka squirms beside you, her wide hips shifting as the weed and sugar hit her system and her control slips. Her plush rear lifts slightly from the cushion.

BBBRRRUUUUMMMPPP-vvvrrraaaAAAPPPPTTTTrrrppptttPPPTTT-vvvrrrpt!

A strong rush of light-blue gas with turquoise hints blasts free, the addictive sugary smell spreading fast and hanging for sixteen seconds as her ears flatten against her head in mild embarrassment.

Kyouka doesn't let the moment pass, already feeling her own bowels bubble again while she leans forward with that competitive glint in her purple eyes and palms her leaking nipple.

"Don't go quiet on us now. One taste and you'll be hooked just like every other catgirl we've brought in. I always win these little contests anyway."

BBBBBRRRUUUUMMMMMMPPPPHHHHRRRAAAAAPPPPTTTTT...rrruuummppphhhttt!!!

Another loud powerful rip escapes Kyouka, vivid purple clouds rolling out in a fruity wave that fills the couch area for fourteen seconds straight and mixes with her sister's scent.

Sayaka glances over, voice dropping to a breathy whisper as she offers a small smile despite the nonstop production coming from both of them.

"Headpats help when it gets this constant... if you feel like it."

The sisters stay focused on you, Kyouka already refilling the glass from her own breast while the room grows thicker with their pleasant mixed gas.

.