The heavy click of the front door echoing through the quiet hallway signaled their mother's departure.
Before the sound could even fully fade into the morning silence, Ren stood up from the dining table, grabbed Kikyo by her delicate wrist, and began pulling her upstairs toward his bedroom.
"Ren, wait... let go of me!" Kikyo hissed under her breath, trying to dig her heels into the wooden steps.
Her small, desperate struggles were entirely useless against his unyielding grip.
"Mother just left! What if she forgot something and came back..."
Ren didn't say a word.
He dragged her through his bedroom doorway, shut the door, and locked it with a sharp, decisive click that sealed the room off from the rest of the world.
He pushed her back onto the edge of his bed. Kikyo glared up at him, her chest heaving as she tried to pull her posture together, but her dark, angry front was already trembling under the sheer weight of his presence.
With slow, deliberate movements, Ren reached down and began stripping her clothing off piece by piece.
She tried to swat his hands away, but every time her fingers made contact with his, her body hesitated, conditioned to yield under his touch.
Soon, her clothing pooled uselessly on the floor, leaving her smooth, pale skin completely bare against his crisp sheets.
Ren leaned over her, pinning her wrists gently above her head as he brought his face down to the side of her neck.
He began with her earlobe, taking the soft, tender flesh between his lips and slowly licking it with warm, wet strokes that made her draw in a sharp, shuddering breath.
"Nngh... Ren, stop..." she whimpered, turning her face away, though her neck arched slightly into his touch despite her words.
He dragged his tongue down from her ear, tracing the delicate, sensitive curve of her neck.
He paused near her collarbone, digging his teeth into her pale skin with a firm, sharp bite that drew a gasped moan from her lips, immediately following it with a soothing, wet lick.
He repeated the motion along the sensitive column of her throat, leaving behind a series of dark, blooming crimson hickeys that marked her soft skin as his absolute property.
"Ah... ahh... don't leave marks..." she pleaded weakly, her knuckles twitching where he held them pinned above her head.
'Is he insane?' Kikyo thought wildly, her mind spinning as his warm mouth dragged across her sensitive skin.
'He was just licking between my legs before breakfast... he literally just ate... and now he's right back at it? He's tasting every inch of me like I'm some endless feast, like he can't ever get full...'
Ignoring her feeble protests, Ren trailed his lips lower, moving onto the full curve of her D-cup breasts.
He buried his face between the soft, pale mounds, breathing in her sweet scent before zeroing in on one hardened, pink peak.
He clamped his teeth around her nipple, biting down just hard enough to elicit a loud, needy squeak from her chest, before swirling his wet tongue around the sensitive circle in fast, relentless flicks.
He switched to the other side, punishing and pleasuring her nipples until her back arched completely off the mattress.
His path down her body didn't stop there.
Ren dragged his mouth down across her ribs, pressing slow, hot kisses into her soft abdomen.
He reached her navel, dipping the sharp tip of his wet tongue directly into the small, clean hole, swirling it inside while his warm breath fanned across her stomach.
Kikyo gasped, her stomach muscles quivering reflexively at the intense, ticklish heat spreading straight down to her core.
With slow, deliberate intent, Ren shifted his focus to the side.
He took her bare arm and extended it upward, placing his tongue at her clean, hairless armpit.
He pressed a firm, long stroke from her pale underarm, dragging his tongue all the way down the smooth contour of her ribs to the curve of her waist.
He repeated the long, wet lick, lapping at her skin like a hungry predator taking his sweet time with his prey, leaving a glistening trail of moisture along her side while Kikyo lay completely open and trembling beneath him.
Ren shifted his position again, moving down between her trembling legs while keeping his heavy hands firmly planted higher up on her body.
He reached up, taking full, possessive holds of her large, soft breasts, digging his fingers deep into the plump sides of her D-cup chest.
His big hands kneaded the soft mounds roughly, squeezing and reshaping her pale flesh without a trace of gentleness, forcing her chest to swell upward with every heavy press.
Below, his mouth made contact with her inner thighs.
He pressed warm, wet kisses against the sensitive skin close to her knee, trailing his tongue upward in slow, agonizingly deliberate licks.
He dragged his tongue high up the soft slope of her thigh, heading straight toward the wet, throbbing heat radiating from her center.
Every time his warm breath hit her swollen slit and Kikyo held her breath in desperate anticipation, Ren abruptly altered his course.
Instead of granting her the contact her hyper-sensitive body craved, he swerved his mouth outward, licking along her hip bone or tracing back down the opposite leg.
"Ah... hnngh..." Kikyo whimpered, her hips twitching uncontrollably off the sheets.
She squirmed beneath his heavy frame, her body instinctively attempting to push her center against his mouth.
But Ren held her firm, continuing to roughly squeeze and knead her breasts while denying her the one thing her trembling lower body was practically begging for.
Ren shifted his weight further down the bed, his mouth trailing away from her inner thighs to trace the smooth line of her lower legs.
He pressed slow, teasing licks across the soft skin of her calves and the back of her knees, making Kikyo's breath hitch as every light brush of his tongue sent electric shivers back up her spine.
"R-Ren... please..." she choked out, her voice barely a whisper as her fingers tangled into the bedsheets beneath her.
He offered no verbal reply.
Instead, his mouth traveled back up the tender length of her thighs, his hot breath fanning across her hyper-sensitive skin.
The slick, wet trails left by his tongue heightened every sensation, driving her mind into a dizzying fog of anticipation.
He dragged his lips upward, tracing the high curve where her thigh met her pelvis, leaning in so close that she could feel the heat radiating directly from his mouth right over her throbbing center.
Yet, just as before, he bypassed her wet folds entirely.
He swerved to the opposite thigh, lapping at the pale skin in slow, torturous strokes.
Above her waist, his large hands remained utterly relentless.
He squeezed the full, heavy flesh of her breasts with firm, deliberate pressure, using his thumbs and forefingers to sharply pinch her hardened nipples.
"Ahhn...!" Kikyo gasped, her back arching sharply off the mattress.
The double assault, the sharp, piercing ache at her chest combined with the maddening, unsatisfied heat aching between her legs, was driving her to the brink of madness.
Her hips twitched and lifted helplessly off the bed, trying to chase his mouth, trying to force contact with his lips.
But Ren held her firm, maintaining his cruel pace, keeping her suspended in an agonizing loop of heightened arousal without a single drop of relief.
Ren paused, lifting his head slightly to look down at the warm, trembling space between her thighs.
The torture of his teasing had worked with ruthless efficiency.
Her sensitive pink folds were swollen and glistening, coating her inner thighs in a clear, slick wetness that shimmered under the bedroom light.
Her pussy twitched violently in rhythmic, desperate spasms, practically pulsing with open anticipation as her body begged for the touch he was withholding.
Ren stared down at her drenched center, his dark eyes gleaming with unfiltered desire as he took in the sight of her complete, involuntary surrender.
"Look at you," Ren murmured, his breath hot against her wet skin.
"Your pussy is practically weeping for my tongue."
"N-No... it's not..." Kikyo stammered weakly, her cheeks burning a deep, furious crimson.
She turned her head away into the pillow, refusing to meet his eyes.
"I'm not... I don't want this... You're just... forcing me..."
Her verbal denials sounded hollow, entirely betrayed by the way her hips twitched upward again, silently begging his mouth to bridge the tiny distance remaining between them.
Ren leaned down, finally closing the agonizing gap between his lips and her throbbing center.
He pressed a long, deep, and impossibly wet stroke of his tongue straight up her swollen slit, lapping up the sweet, slick moisture that had pooled along her entrance.
"Mmmph...!"
Kikyo buried her face deep into the pillow, biting her lower lip until it almost bled as she tried with everything she had to suppress the explosive moan rising from her throat.
Her knuckles turned stark white against the sheets, her entire body rigid as she fought a losing battle against the sheer physical euphoria ripping through her nervous system.
Every flick of his relentless tongue against her clit made her hips jerk reflexively, her toes curling tight as her body surrendered completely to his touch once again.
Above her twitching thighs, Ren worked his tongue with dark, greedy satisfaction, drinking in every drop of her reaction.
'My sister's pussy tastes delicious,' Ren thought, a cold, predatory thrill running through his mind as he lapped at her sensitive folds.
'Now I just have to see how my mom's pussy tastes...'
As he continued to feast on Kikyo's weeping flesh, the vivid memory of the previous night flashed brightly in his mind.
He recalled slipping silently through the dark hallway, catching his mother through the cracked bedroom door as she lay entirely unclothed, her voluptuous body shivering while her hand worked frantically between her plump thighs.
He remembered every detail of her heavy, rising chest and the desperate, muffled gasps she made in the dark, completely unaware that her son was watching her from the shadows.
A dark, dangerous smile formed against Kikyo's wet skin.
He had almost broken his sister into a helpless, addicted toy to his touch.
Soon enough, it would be time to turn his sights toward the woman who raised them.
With their mother out of the house for the day, the quiet residence became the isolated stage for the twin brother and sister's taboo debauchery.
Untamed and relentless, Ren continued to taste every inch of his sister's body, drinking her in like a thirsty pervert devouring a forbidden feast, while Kikyo's silent struggle dissolved beneath his lips.