Futa Parasite-Stephanie grows a cock 🍆 🥵 (Story Below 😉)
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April 11, 2026
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The warm afternoon sun filtered through the trees as Stephanie walked the quiet park trail on her way home. She was dressed casually but cute: a short pleated denim skirt that swayed teasingly around her toned thighs with every step, and a tight white tank top that clung snugly to her perky C-cup breasts, the thin fabric outlining her nipples faintly in the breeze. Underneath, she wore simple black lace panties that hugged her smooth pussy. A strange, slick parasite sensed her body heat and struck fast. The warm, writhing creature shot out and latched onto the bare skin of her inner thigh just below the hem of her short skirt. Stephanie felt the sudden, cool-wet touch and yelped. “What the—?!” She stopped walking and swatted at her leg hard with one hand, trying to brush the thing off. But the parasite was already suctioned tightly to her skin with dozens of tiny, fleshy suckers. No matter how frantically she slapped and scraped at it, it refused to release. Instead, it began climbing higher, its slippery body pulsing as it moved. “Get off me! Oh fuck—get off!” Stephanie gasped, panic rising as she used both hands now, desperately trying to peel the creature away. Her short skirt rode up with the frantic movements, exposing more of her thighs, but the parasite only gripped tighter. Its slick, tapered head wriggled upward, inching relentlessly toward the crotch of her black lace panties. She stumbled backward against a nearby tree, breathing fast, still clawing at the thing suctioned to her inner thigh. “No—no, stop! It’s moving—ahh! What the fuck is happening to me?!” A helpless moan slipped out as the parasite pressed firmly against the thin lace barrier. With a wet push, it nudged the edge of her panties aside and slid its thick, flexible head directly against her bare pussy lips. Stephanie’s eyes widened in horror. “No—don’t—please—nnngh! Make it stop!” She tried one last time to yank it away, fingers slipping on its slick surface, but it was too late. The parasite thrust forward powerfully, its slippery body parting her labia and sliding deep inside her pussy in one smooth, relentless motion. It was thick enough to stretch her walls deliciously at first, then even thicker as it burrowed deeper, pulsing and secreting a warm, tingling fluid that flooded her insides instantly. “Oh god—it’s inside me! It’s sliding so deep—fuuuck! What the fuck is happening to me?! Make it stop—ahhn!” Stephanie moaned uncontrollably even as terror filled her voice, her knees buckling as she gripped the tree for support. The parasite wriggled and swelled within her tight channel, pumping more of its transformative secretions into her core. Almost immediately the effects began: a deep, spreading heat bloomed in her belly, and her breasts started to swell rapidly. Her tight white tank top grew tighter and tighter as her tits ballooned outward, going from perky C-cups to heavy, hypersensitive DD-cups in seconds. Her nipples hardened into stiff, aching peaks, poking prominently against the stretched fabric. The parasite continued its work inside her as she staggered the rest of the way home on shaky legs, moaning and whimpering with every step. “Please… make it stop… I don’t want this… oh fuck it feels too good—nnngh!” Her swollen breasts bounced heavily in the now painfully tight tank top, and her short denim skirt swished around her thighs. By the time she reached the front door, the real changes were only beginning. Stephanie staggered through the front door of the quiet suburban house, kicking it shut behind her with one foot. The moment she stepped into the foyer, a fresh, overwhelming pressure exploded between her legs. “Ahh—fuck… what’s… happening now?” Stephanie gasped, her voice cracking into a mix of fear and desperate moans. “What the fuck is happening to me?! Make it stop!” She leaned back against the door, one hand flying down to press against the front of her short denim skirt. Unable to fight the overwhelming urge, Stephanie frantically stripped right there in the foyer, tears of panic and unwanted pleasure mixing in her eyes. She yanked the tight white tank top up and off, letting her heavy, hypersensitive DD breasts bounce free, nipples rock-hard and begging for attention. Then she shoved her short denim skirt down her legs and kicked it aside, followed by her soaked black lace panties. The only thing she kept on were her strappy black high heels, the delicate straps accentuating her long, trembling legs as she stood completely naked except for them. Her pussy lips began to bulge outward visibly, the smooth, hairless mound swelling like it was being inflated from within. The skin stretched tight and shiny as an internal pressure pushed forward in a slow, powerful wave. Stephanie’s eyes widened in terror. “Ohhh… fuuuck… it’s pushing… so hard… What the fuck is happening to me?! Make it stop—please!” she whimpered, hips jerking as her pussy lips puffed out obscenely. Instinctively, she cupped both hands tightly over her bulging mound, trying to hold it back, pressing her palms flat against the swelling flesh. “No—no, don’t grow—make it stop!” Her inner walls clenched tight around the thick presence inside her, and suddenly a sharp, overwhelming orgasm ripped through her. “Ahhn—cumming—oh my god I’m cumming already! No—no, make it stop—I don’t want this—haaaah!” Her pussy spasmed hard under her hands, juices gushing between her fingers as her body shook violently in her strappy heels. Then, just as suddenly, the bulge retracted, her lips pulling back in, leaving her dripping slit looking almost normal again for a heartbeat — though her clit was now throbbing visibly. Before she could even catch her breath, another stronger wave hit. Her pussy bulged outward even more dramatically this time, the lips parting slightly on their own. She kept her hands cupped desperately over it, feeling the terrifying growth push against her palms. “Nngh—again—oh god it’s bulging so much—haaaah! What the fuck—make it stop!” The mound throbbed visibly under her hands, stretching wider. Her walls clenched down even tighter, and another powerful orgasm crashed over her. Stephanie cried out loudly, legs trembling as fresh waves of pleasure made her heavy DD breasts bounce and her nipples ache. “I’m cumming again—fuck—make it stop—I can’t—nnngh!” It retracted once more, slower this time, her pussy lips closing under her palms, only to immediately swell again in a third, even more intense wave. Stephanie’s knees shook hard in her strappy heels. “It’s… it’s happening in waves… fuck, I can feel it getting bigger inside me every time—nnngh! Please make it stop—what the fuck is this?!” Her hands stayed pressed over her pussy, feeling every terrifying throb, but the pleasure was becoming too much. Her fingers began to tremble and slip between her swollen lips. Wave after throbbing wave continued, each one longer and more obscene than the last. Her pussy would swell hugely under her hands, lips parting wider and wider, the entrance visibly stretching as the thick head of her new cock pressed insistently against it from within… then it would retract again, teasing her mercilessly. Stephanie finally gave in with a broken sob. She spread her legs wider in her high heels and slid two fingers deep inside her bulging, retracting pussy, frantically fingering herself while feeling the throbbing head of her emerging cock pushing against her fingertips from the inside. “Oh god— I can feel it… the head is right there—throbbing so hard—ahhn! What the fuck is happening to me?! Make it stop—but don’t stop—haaaah!” Her fingers pumped faster, curling against the thick, pulsing shape inside her as orgasm after orgasm tore through her body. She was a moaning, shaking, terrified mess, breasts heaving, tears streaming down her cheeks even as she desperately fingered herself through every wave. “I’m cumming so hard every time—fuck—make it stop—I can’t take it—nnngh! The head is getting bigger… I can feel it stretching me from inside!” Finally, after what felt like an eternity of torturous bulging, retracting, and relentless orgasms while she fingered herself, the pressure crested. Her pussy lips stretched impossibly wide in one final, powerful wave and stayed that way. The flared, dark-pink head of her new cock finally pushed through, spreading her labia obscenely around her own fingers as it emerged inch by thick, veined inch. She slowly pulled her fingers out with a wet gasp, watching in horror and lust as the massive shaft slid free — seven inches… eight… nine… until a full, massive ten-inch futa cock stood proudly erect between her legs, throbbing heavily and leaking a thick bead of pre-cum that dripped onto the floor. With a wet, audible plop, her new heavy balls dropped into their smooth, swollen sac beneath the shaft, hanging full and churning. “Nngh—haaaah—my cock… it finally came out of me… look how fucking huge it is… What the fuck happened to me?!” Stephanie moaned uncontrollably, voice husky and broken with a mix of lingering terror and raw lust, staring down at her brand-new monster in horror and desperate need, her pussy still fluttering from the endless orgasms. From the hallway, soft footsteps approached. Sarah — Stephanie’s stepmother — stepped into view wearing tight black yoga pants that hugged every curve of her toned ass and long legs, paired with a loose gray tank top. Her eyes widened in pure horror as she took in the sight: her stepdaughter standing there completely naked except for strappy high heels, a massive, throbbing ten-inch futa cock now fully emerged and standing proudly erect between her legs, still dripping, while her heavy DD breasts rose and fell with desperate breaths. “Stephanie?! What the—oh my god, what is that?!” Sarah’s voice was a shocked whisper, one hand flying to her mouth. Horror and dark lust warred in her eyes as she stared at the glistening, veined shaft and the heavy balls hanging below. Stephanie’s eyes met Sarah’s, hazy with overwhelming, parasite-driven need mixed with lingering fear. Without a word she lunged forward, grabbing Sarah by the waist and slamming their bodies together. One hand slid boldly under Sarah’s tank top, squeezing a full, soft breast hard, thumb rolling over the already-hardening nipple. “Sarah… I need you,” Stephanie growled, voice low and dominant, before crashing their mouths together in a deep, filthy kiss. Their tongues tangled hot and wet as Stephanie’s other hand dropped between Sarah’s thighs, rubbing firmly over the crotch of her yoga pants. Sarah whimpered into the kiss but her body betrayed her, legs parting as Stephanie’s new cock slid hot and heavy between her thighs, rubbing right against her swelling clit. Stephanie yanked the yoga pants down roughly, exposing Sarah’s soaked black thong, then hooked a finger in the fabric and pulled it to the side, revealing her glistening, puffy pussy. Stephanie dropped to her knees in her strappy high heels, still dripping pre-cum from her massive cock, and buried her face between Sarah’s thighs. She licked hungrily along Sarah’s soaked folds, tongue swirling around her clit before pushing deep inside her dripping entrance, sucking and devouring her stepmother’s pussy with desperate hunger. Sarah moaned loudly, hands tangling in Stephanie’s hair as her hips bucked against the eager mouth. “Oh fuck—Stephanie—your tongue feels so good—ahhn!” After several minutes of intense licking that left Sarah’s pussy dripping and throbbing, Stephanie rose, spun Sarah around, and pushed her down onto all fours on the hardwood floor. She lined up her massive cock and thrust forward, burying every thick inch deep into Sarah’s sopping wet heat in one powerful stroke. Sarah cried out sharply, back arching as she was stretched wide around the massive intrusion. Stephanie fucked her hard and deep right there on the floor, hips snapping with raw need. She then grabbed Sarah’s left leg, hoisting it high into the air while continuing to pound her with long, brutal strokes. After several intense minutes, Stephanie pulled out, spun Sarah around again, and practically threw her face-down ass-up onto the living room couch. She mounted her from behind and slammed back inside in one savage thrust, fucking her wildly. Sarah moaned uncontrollably, reaching back to grip Stephanie’s heavy swinging balls and squeezing them with every thrust. The wet, obscene sounds of skin slapping and juices dripping filled the room. Stephanie’s pace turned completely savage. “I’m gonna cum—gonna fill you up, Sarah!” Stephanie snarled through gritted teeth. With a guttural cry she buried herself to the hilt and exploded. Thick, hot ropes of cum flooded Sarah’s pussy in powerful, endless pulses — so much that it immediately began leaking out around the shaft and dripping down Sarah’s thighs. Sarah came hard at the same time, screaming into the cushion as her walls clamped rhythmically around the throbbing cock. Only when Stephanie had pumped every last drop deep inside did she slowly pull out, a thick gush of cum following her cock. Sarah lay there panting, face down ass up, cum leaking steadily from her well-fucked pussy… when a sudden, familiar heat bloomed low in her own belly. “Oh no… Stephanie… I feel it too…” Sarah whimpered, her voice already turning breathy. “What the fuck… it’s happening to me now…” Sarah’s body began to tremble. A deep, spreading warmth flooded her core as the parasite awakened inside her. Her breasts started to swell rapidly beneath her gray tank top, pushing the fabric tight as they grew heavier and more sensitive. Her nipples hardened into stiff peaks, clearly visible through the thin material. “Oh god… my tits… they’re getting so big…” Sarah moaned, fear and arousal mixing in her voice. “Stephanie… make it stop—ahhn!” But the changes accelerated. Sarah’s pussy began to throb and swell. Her lips puffed outward visibly against the soaked thong still pulled to the side. Waves of pressure built deep inside her, her inner walls stretching and clenching. “What the fuck is happening to me?! It’s bulging inside—make it stop—nnngh!” Her pussy lips bulged dramatically, then retracted, then bulged again in powerful waves. Stephanie, still rock-hard and dripping, dropped back down between Sarah’s spread legs on the couch and buried her face in her stepmother’s changing pussy once more. She licked and sucked hungrily as Sarah’s mound swelled hugely against her lips, the entrance stretching and fluttering with every wave. Stephanie’s tongue flicked wildly over the bulging lips and thrusting entrance, tasting every fresh gush of arousal while Sarah’s breasts continued to swell even larger. “I can feel it growing on my tongue… fuck, your pussy is bulging so much,” Stephanie moaned between licks, never stopping as Sarah cried out in terror and pleasure. Sarah’s walls clenched tight as orgasm after orgasm ripped through her. “I’m cumming—oh fuck I’m cumming on your face again—haaaah! What the fuck—make it stop—but don’t stop licking—nnngh!” Her hands gripped Stephanie’s head tighter, grinding her bulging, retracting pussy desperately against her stepdaughter’s eager mouth. Wave after wave continued, Sarah’s pussy swelling hugely against Stephanie’s tongue until, with a broken scream, her pussy lips stretched impossibly wide. The flared, dark-pink head of her new cock pushed through, spreading her labia right against Stephanie’s lips as the thick, veined shaft emerged inch by inch until a full, massive ten-inch futa cock stood proudly erect. Her heavy balls dropped with a wet plop, hanging full and churning. Sarah stared down in shock and lust, panting hard, her body now fully transformed just like Stephanie’s, breasts heaving and newly enlarged cock throbbing. Stephanie pulled back, lips shiny with Sarah’s juices and cum, and looked up with dark hunger. She rose, pulled Sarah into a deep, messy kiss for a moment, then dropped back down between her legs. Without hesitation, Stephanie wrapped her lips around the flared head of Sarah’s brand-new cock and began sucking hungrily, taking several thick inches into her warm, wet mouth while her tongue swirled around the sensitive underside. At the same time, Stephanie reached down and wrapped her own hand around her massive, still-throbbing cock, stroking herself with firm, steady pumps. Sarah moaned loudly, hips bucking as Stephanie sucked her new cock with eager, sloppy enthusiasm. “Oh fuck—Stephanie—your mouth feels so good on my cock—ahhn!” Stephanie bobbed her head faster, sucking harder while her hand flew up and down her own shaft. She could feel Sarah’s cock throbbing and swelling in her mouth, the heavy balls tightening. With a desperate cry, Sarah came hard — thick, hot ropes of cum erupted straight down Stephanie’s throat. Stephanie swallowed greedily, gulping down every powerful spurt, not letting a single drop escape. As Sarah’s orgasm pulsed through her, Stephanie stroked herself faster and faster. The taste of her stepmother’s fresh cum pushed her over the edge. With a muffled moan around Sarah’s still-spurting cock, Stephanie came hard, her own massive cock pulsing in her hand as thick ropes of cum shot out across the floor and over her own thighs. Stephanie kept sucking gently until Sarah’s cock stopped twitching, then finally pulled off with a wet pop, a thin string of cum and saliva connecting her lips to the tip. She looked up at Sarah with lust-glazed eyes, both of them panting and covered in sweat and fluids. “Fuck… we’re perfect now,” Stephanie breathed, still slowly stroking her own spent cock.
Video by u/Additional_Fly_1106
Video by u/Additional_Fly_1106
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