Description
Allison was fast asleep in her cozy bedroom, the soft glow of her bedside lamp still on. She lay on her back under the warm blankets, wearing only a loose tank top and a pair of simple black panties. Her breathing was slow and peaceful after a long day. She didn’t notice the small, almost invisible creature that had slipped under the covers earlier that evening. It moved silently across her thigh, drawn by the warmth of her body. When it reached the crotch of her panties, it paused for a moment… then struck. A sharp, sudden sting pierced directly into her clit. Allison’s eyes flew open with a gasp. Her hips jerked upward instinctively as a hot, burning sensation bloomed between her legs. “Ah—!” she cried out softly, still half-dazed from sleep. She threw the covers back and sat up quickly, her hand flying down to her panties. Her clit was throbbing intensely where the sting had landed. At first she thought it was just a bug bite, but the sensation was growing stranger by the second — a deep, warm pulsing that made her clit feel swollen and hypersensitive. “What the hell was that…?” she whispered, breathing heavily. She hooked her fingers into the waistband of her panties and pulled them down just enough to expose herself. Her clit looked slightly puffy and was visibly pulsing. A strange, tingling heat was spreading through her pussy, making her squirm against the sheets. Allison touched it gently with her fingertip and immediately moaned. The sensitivity was off the charts. Her clit throbbed harder under her touch, sending sparks of unwanted pleasure through her core. She had no idea that the sting was only the beginning. Allison’s eyes widened as the strange tingling in her clit intensified. What started as a sharp sting quickly turned into something far more intense. Her clit began to throb. It pulsed heavily, swelling with every heartbeat. Each powerful throb sent waves of electric pleasure shooting through her core. Allison’s mouth fell open as a helpless moan escaped her lips. “Ahh… what’s… happening…?” The throbbing grew stronger. Her clit spasmed visibly, twitching and jerking under the thin fabric of her panties. It felt like it was alive — pulsing, swelling, and growing warmer by the second. Another spasm hit her, harder this time, making her hips buck involuntarily off the bed. “Mmmh—! Oh fuck…” she moaned, her voice breathy and shaky. She yanked her panties down to her thighs, exposing her bare pussy. Her clit was visibly swollen, red, and throbbing wildly. It twitched and spasmed on its own, growing slightly thicker with every pulse. The sensation was overwhelming — a deep, insistent pleasure mixed with something alien and frightening. Allison couldn’t stop moaning. Soft, needy sounds poured from her mouth as her clit continued to throb and spasm uncontrollably. Every twitch sent sparks of pleasure radiating through her body, making her thighs tremble and her toes curl. “It won’t stop… it keeps throbbing…” she gasped, one hand hovering hesitantly over her swollen clit. Another powerful spasm hit her. Her clit jerked visibly, swelling even more as it pulsed with life. Allison’s back arched off the bed as a long, drawn-out moan escaped her. “Ahhh—! It feels so… intense…” She was breathing heavily now, legs spread, staring down in a mixture of fear and arousal as her clit continued to throb and spasm wildly between her legs, clearly beginning its transformation. Allison lay on her bed, legs spread, breathing heavily as her swollen clit continued to throb and spasm uncontrollably. Each powerful pulse made her moan louder, her hips twitching against the sheets. “Ahh… mmmh—! It won’t stop pulsing…” she whimpered, her voice growing more desperate. Suddenly, the bedroom door creaked open. “Allison? Are you okay? I heard you moaning from the hallway…” Sara, her stepsister, stepped inside, concern clear on her face. Allison’s eyes snapped open in panic, but it was too late to hide. The moment Sara entered and saw her lying there with her panties pulled down and her visibly swollen, twitching clit on full display, something inside Allison intensified dramatically. Her clit throbbed violently — harder than before. It spasmed wildly, jerking and swelling even more noticeably right in front of Sara’s eyes. A loud, wet throb pulsed through it, making Allison cry out sharply as fresh waves of intense pleasure crashed through her body. “Ahhh—! Sara… don’t look—!” Allison moaned, but her words dissolved into another helpless, guttural sound as her clit spasmed again, growing thicker and twitching uncontrollably. Sara froze in the doorway, eyes wide with shock as she stared at her stepsister’s pussy. Allison’s clit was visibly pulsing and spasming, swelling larger with every heavy throb, the sensitive nub now almost the size of a small fingertip and twitching like it had a mind of its own. “Allison… what the hell is happening to you?” Sara whispered, unable to tear her eyes away from the obscene, erotic sight. Allison’s clit throbbed even harder in response to being watched. It spasmed sharply, jerking upward as another powerful pulse ran through it, forcing a long, needy moan from Allison’s lips. Her hips bucked involuntarily as clear arousal leaked from her pussy, dripping down onto the sheets. “I don’t know… it stings… it keeps throbbing and growing…” Allison gasped, her voice breaking as her clit continued to pulse and spasm wildly under Sara’s stunned gaze. Here's the continuation: Allison’s clit continued to throb and spasm wildly under her stepsister’s shocked gaze. It was visibly swelling larger now, pulsing and twitching with every heartbeat. Sara’s eyes were locked between Allison’s legs, unable to look away. Slowly, she took a step closer, then another, drawn in by the bizarre and strangely arousing sight. “Allison… it’s getting bigger,” Sara whispered, leaning in for a closer look. She was now standing right beside the bed, staring intently at her stepsister’s swollen, throbbing clit. Allison moaned helplessly, her hips twitching. “Sara… please… it won’t stop…” Suddenly, the swollen clit pulsed hard. A small, clear stream of fluid shot out from the tip in a thin arc, splattering lightly onto Allison’s stomach and the sheets. The unexpected release made Allison cry out in pleasure. “Ahh—!” The moment the clear cum sprayed out, her clit swelled even more dramatically. It thickened noticeably, growing longer and fatter right before Sara’s eyes. The sensitive nub was now almost two inches long, flushed dark pink, and twitching uncontrollably as it continued to throb and pulse with life. Sara’s breath hitched. She was close enough now to see every detail — the way the swollen clit glistened, the way it jerked and pulsed, and the fresh bead of clear fluid forming at the tip again. “It just… came a little,” Sara murmured, voice soft with awe and arousal. “And it’s still growing…” Allison’s head fell back against the pillow as another powerful throb ran through her swollen clit. She moaned loudly, unable to control the sounds escaping her lips as the transformation continued. Allison’s swollen clit throbbed violently, now nearly two and a half inches long and thick as her thumb. She was panting, her hips twitching uncontrollably as the intense pleasure built to a breaking point. Suddenly, her body tensed. “Ahhh—! Sara— I’m—!” A powerful squirt erupted from her pussy. Clear girl-cum sprayed out in a long, forceful jet, splashing across Sara’s hand and forearm. Another gush followed, then another, soaking the sheets beneath her as her swollen clit spasmed wildly. Sara’s breathing grew heavy. Her cheeks flushed deep red and her thighs pressed together as a rush of heat flooded between her legs. Watching her stepsister’s clit throb and leak like this — transforming right in front of her — had made her incredibly wet. Her own pussy was aching, soaking through her panties. “Fuck… Allison…” Sara whispered, voice thick with arousal. “You look so hot like this…” She leaned in closer, unable to resist. Her fingers gently flicked the tip of Allison’s swollen, twitching clit. Allison cried out sharply, her hips jerking. Sara smiled and continued teasing — flicking the sensitive head again and again, then rubbing her fingers slowly up and down Allison’s slick, puffy pussy lips. Every touch made Allison moan louder, her swollen clit pulsing and leaking more clear fluid. Sara lowered her head and pressed a soft, lingering kiss directly onto the throbbing head of Allison’s clit. Her lips wrapped around it gently, sucking lightly for a moment before pulling back with a wet pop. Then, without warning, Sara plunged two fingers deep into Allison’s soaked pussy. Allison’s back arched off the bed with a loud, broken moan as Sara’s fingers curled inside her, stroking her inner walls while her thumb continued rubbing circles around the swollen, hypersensitive clit. Sara’s eyes were dark with lust as she fingered her stepsister, watching in fascination as Allison’s clit continued to throb and swell under her touch. Sara couldn’t hold back any longer. She leaned down and wrapped her soft, warm lips around Allison’s swollen, throbbing clit. She began sucking gently at first, then more eagerly, her tongue swirling around the sensitive head while she pumped two fingers steadily in and out of Allison’s soaked pussy. Allison let out a loud, broken moan, her hips bucking upward into Sara’s mouth. The moment Sara’s lips sealed around her clit, the swollen nub pulsed violently. Allison’s body tensed as another wave of clear fluid built up inside her. “Ahhh—! Sara— I’m—!” A powerful spurt of clear cum shot directly into Sara’s mouth. Sara moaned around the throbbing clit and swallowed hungrily, not pulling away even for a second. She sucked harder, her fingers curling upward to press firmly against Allison’s G-spot with every thrust. Allison cried out, her hands gripping the sheets tightly as her clit continued to bulge and grow in Sara’s mouth. It swelled thicker and longer with every heavy throb, stretching Sara’s lips wider as it transformed. Another strong spurt of clear cum flooded Sara’s mouth, then another, and another. Sara swallowed greedily, her eyes half-lidded with lust as she drank down every drop while her fingers relentlessly massaged Allison’s G-spot. “Mmmph… it keeps growing…” Sara moaned around the expanding clit, her voice muffled. She sucked harder, flicking her tongue across the sensitive head while her fingers curled and stroked faster inside Allison’s dripping pussy. Allison was moaning uncontrollably now, her body writhing on the bed as her clit continued to bulge and lengthen in Sara’s eager mouth. The combination of Sara’s warm, wet sucking and her fingers hitting her G-spot perfectly was driving her insane with pleasure. Sara kept sucking hungrily, swallowing every fresh spurt of clear cum as Allison’s clit throbbed and grew bigger between her lips, clearly on its way to becoming a full cock. Sara moaned loudly around Allison’s swollen clit as her own orgasm suddenly hit her. While furiously fingering Allison’s dripping pussy, Sara’s body tensed. Her pussy clenched hard around nothing, and she released a powerful squirt that soaked her own thighs and the bedsheets beneath her. She kept her fingers buried deep inside Allison, curling them relentlessly against her G-spot even as she came. Pulling back slightly, Sara looked down with lust-drunk eyes at the throbbing clit in front of her. It had grown even larger — now a full three inches long, thick and heavy, the head fully formed and leaking clear fluid. “Fuck… it’s three inches already…” Sara whispered, a hungry smile spreading across her face. She flicked her tongue teasingly across the sensitive tip, making Allison cry out and buck her hips. Sara grinned wider, clearly enjoying the power she had over her stepsister, then hungrily slurped the swollen clit back into her warm, wet mouth. “Mmmph—!” Sara moaned deeply as she took it in again, sucking harder this time. Her tongue swirled around the thick head while her fingers continued plunging in and out of Allison’s pussy, stroking her G-spot with perfect rhythm. Allison’s hands flew to Sara’s head, fingers tangling in her hair as she moaned uncontrollably. “Sara—! It’s getting even bigger in your mouth— ahhh!” Sara sucked greedily, bobbing her head as the clit-cock throbbed and pulsed between her lips. She could feel it growing even more, stretching her mouth wider as she hungrily worshipped it, her fingers never stopping their relentless assault on Allison’s dripping cunt. Sara was sucking hungrily on Allison’s swollen three-inch clit, her tongue swirling around the sensitive head, when she suddenly froze. She pulled her mouth off with a wet pop, eyes widening. “Wait… something’s happening deeper inside you,” Sara whispered, her fingers still buried in Allison’s soaked pussy. Allison moaned loudly, her hips twitching. “I feel it… oh god, it’s moving…” Sara curled her fingers and felt something heavy shifting inside. A moment later, the first swollen ball pushed its way out. With a wet, fleshy schlorp, the first heavy testicle plopped out of Allison’s stretched pussy, dropping between her legs. It was large, smooth, and already full, hanging low and churning visibly. Allison cried out in shock and pleasure. Then the second one followed right after — another loud, obscene schlorp as the second ball slid out and joined the first, both of them now hanging heavily beneath her throbbing clit-cock. Sara stared in awe, her fingers still inside Allison. “You… you just grew balls…” Allison’s clit — now unmistakably becoming a cock — reacted instantly. It swelled dramatically with every powerful throb. Gulp… gulp… gulp… Wet, fleshy pulsing sounds filled the room as it thickened and lengthened rapidly. It surged from three inches to four, then five inches in just a few heartbeats, growing visibly thicker with every heavy pulse. “Ahhh—! It’s getting so much bigger!” Allison moaned, her voice breaking as her new cock throbbed wildly in the open air, the head flaring and leaking precum while her heavy balls churned beneath it. Sara licked her lips, eyes dark with lust as she watched the dramatic transformation. She gently stroked the rapidly growing shaft with one hand while her other hand cradled Allison’s new, swollen balls, feeling them pulse and slosh with fresh cum. Sara could not resist any longer. Her eyes were locked on Allison’s throbbing, growing cock — now over five inches long, thick, and pulsing with need. Without a word, Sara climbed onto the bed and straddled Allison’s hips, her blue bikini bottom still pulled to the side, her soaked pussy dripping with arousal. “I need it inside me…” Sara whispered breathlessly. She reached down, wrapped her fingers around the thick, hot shaft, and lined up the swollen head with her dripping entrance. The fat tip pressed against her slick folds and slid in effortlessly — her pussy was so wet and ready that it swallowed the head with almost no resistance. Both girls moaned loudly at the same time. Sara slowly sank down, taking more of Allison’s growing cock inside her. Inch after thick inch disappeared into her tight, velvety heat until she was fully seated, her ass resting against Allison’s heavy balls. “Fuck… it’s so deep already,” Sara gasped, her hands resting on Allison’s chest for balance. She began to ride. Sara rolled her hips in slow, sensual circles at first, then gradually picked up speed, bouncing up and down on Allison’s throbbing cock. Her soaked pussy gripped the thick shaft tightly, milking it with every rise and fall. Wet, obscene schlick-schlick-schlick sounds filled the room as she rode faster, her breasts bouncing inside her bikini top. Allison’s hands flew up to grip Sara’s hips, moaning uncontrollably as her stepsister fucked herself on her growing cock. “ Sara… your pussy feels incredible…” Allison whimpered, her own hips thrusting up to meet every downward bounce. Sara leaned forward, pressing her chest against Allison’s as she continued riding harder, her moans growing louder and more desperate with every thrust. The growing cock throbbed and pulsed inside her, stretching her walls perfectly as she lost herself in the pleasure. Sara moaned deeply as she rode Allison, her hips grinding in slow, sensual circles. She could feel it happening — Allison’s cock was still growing inside her. “Oh my god… it’s getting bigger…” Sara whimpered, her eyes fluttering. With every roll of her hips, she felt the thick shaft swelling, stretching her inner walls further. It pulsed and lengthened deep inside her soaking wet cunt, making her gasp and grind harder, chasing the incredible sensation. She suddenly shifted positions, turning around into reverse cowgirl. She lay on her side, still impaled on Allison’s cock, and pressed her back against Allison’s front. Allison didn’t hesitate. She hooked her arm under Sara’s left leg and lifted it high, spreading her wide open. In this new position, Allison began humping into her with raw, lustful desire. Her hips snapped forward, driving her growing cock deep into Sara’s dripping pussy with powerful, needy thrusts. Plap… plap… plap… plap… Sara cried out in pleasure, her head falling back against Allison’s shoulder. “Yes… fuck me like that…!” Allison’s cock was swelling thicker inside her with every thrust. It throbbed and pulsed, growing even girthier as it stretched Sara’s tight walls to their limit. The wet, obscene sounds of their fucking filled the room as Allison humped harder, driven by pure animalistic need, her heavy balls slapping against Sara’s ass with every deep stroke. Sara’s moans grew louder and more desperate, her pussy clenching and fluttering wildly around the thickening cock buried inside her. Sara and Allison gave in completely to their depraved lust. Sara turned her head back toward Allison, their eyes meeting for a heated second before their mouths crashed together in a desperate, filthy kiss. Their lips parted hungrily, tongues sliding and tangling sloppily as they moaned into each other’s mouths. The kiss was messy, wet, and full of raw need — nothing gentle about it. Allison’s hips snapped forward harder, fucking Sara with wild, untamed thrusts. Her thick cock drove deep into Sara’s soaked pussy again and again, the wet plap-plap-plap sounds growing louder and more obscene. Sara pushed back against her, grinding her ass into every powerful thrust while their tongues continued to dance wildly. “Mmmph— fuck me harder,” Sara moaned into Allison’s mouth, biting her lower lip before diving back into the messy kiss. Allison growled against Sara’s lips, her hand gripping Sara’s lifted leg tighter as she pounded into her with savage intensity. Their bodies slapped together rhythmically, sweat-slicked skin gliding against skin. The kiss never broke for long — only for desperate gasps of air before their mouths slammed together again, tongues fucking each other just as eagerly as their bodies. Sara’s pussy clenched and fluttered wildly around Allison’s thick, throbbing cock, milking her with every deep, brutal thrust. Allison’s heavy balls slapped against Sara’s ass as she fucked her stepsister harder, completely lost in lust. Their desperate, depraved makeout session continued as the thrusts grew even wilder — faster, deeper, and more untamed. Moans vibrated into each other’s mouths while their bodies moved together in perfect, filthy harmony. Sara was still trembling from her orgasm, her pussy fluttering and clenching around Allison’s thick cock, when Allison’s hips began moving again. Allison kept pumping into her with deep, powerful strokes, her hands gripping Sara’s waist tightly. Their mouths stayed locked in a messy, desperate kiss — tongues sliding hungrily against each other as wet, heated moans vibrated between them. The pressure inside Allison was building fast. Every thrust made her cock throb harder inside Sara’s soaked, cum-slick pussy. She could feel the hot cum rushing up her shaft, the intense pressure growing at the base of her cock with every deep plunge. “Mmmph—!” Allison moaned into Sara’s mouth, kissing her even harder as her hips snapped forward faster and deeper. She drove her cock as far as it would go, grinding against Sara’s cervix with every thrust. The kiss grew sloppy and wild, their tongues fucking each other as Allison’s breathing turned into desperate, ragged gasps. The pressure became unbearable — her heavy balls tightened, her cock swelled even thicker inside Sara’s clenching heat. “I’m gonna cum…” Allison whimpered against Sara’s lips. “I’m so fucking close…” She thrust deeper and harder, pounding into Sara with pure animalistic need. Their bodies slapped together loudly as Allison chased her release, her cock pulsing violently inside her stepsister’s pussy. Then it hit. With a deep, guttural moan into Sara’s mouth, Allison buried herself to the hilt and exploded. Hot, thick ropes of cum blasted deep into Sara’s womb in powerful, heavy spurts. Allison’s cock throbbed wildly with every pulse, pumping load after load of warm cum into her. The sheer volume was overwhelming — thick jets flooding Sara’s insides until it began leaking out around Allison’s shaft with every deep thrust. Allison kept kissing Sara desperately through her orgasm, their tongues tangled as she continued to pump every last drop deep inside her. Her hips jerked with each powerful spurt, grinding her cock as deep as possible while her heavy balls emptied themselves completely. By the time the final thick spurts faded, both girls were panting into each other’s mouths, bodies slick with sweat, Allison’s cock still buried deep inside Sara’s cum-filled pussy. Allison and Sara stayed locked together in the afterglow, breathing slowly and deeply. Allison’s cock remained buried deep inside Sara’s throbbing pussy, still twitching weakly as the last remnants of her orgasm faded. Thick, warm cum slowly leaked out from where they were joined, dripping down Sara’s thighs and onto the sheets in lazy rivulets. Sara let out a soft, content sigh and gently rocked her hips once more, savoring the feeling of being so full. She turned her head slightly, pressing a tender kiss to Allison’s lips. “I can still feel you pulsing inside me…” Sara whispered lovingly, brushing a strand of hair from Allison’s face. “It feels so good… so right.” Allison smiled softly, wrapping her arms around Sara from behind and pulling her closer. Their bodies fit together perfectly — skin warm and slick with sweat, hearts beating in sync. Allison kissed the back of Sara’s neck, then her shoulder, her hands gently caressing Sara’s breasts and stomach with slow, affectionate touches. “I don’t want to pull out,” Allison murmured against her skin. “I want to stay like this… with you.” Sara hummed happily, reaching back to stroke Allison’s thigh. “Then stay. I love feeling you inside me like this.” They stayed connected, Allison’s spent but still-throbbing cock nestled deep in Sara’s warm, cum-filled pussy. The two stepsisters held each other tightly, exchanging soft, lazy kisses and gentle caresses as their breathing slowly evened out. Exhaustion and contentment washed over them. Sara’s eyes fluttered closed first, a peaceful smile on her lips. Allison followed soon after, pressing one final kiss to Sara’s shoulder before drifting off, her cock still warmly nestled inside her. They fell asleep together like that — bodies intertwined, hearts full, and joined as one in the most intimate way possible.
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