Mara's Vampire Stepmom
by DarkTalons
Copyright© 2025 by DarkTalons
Supernatural Sex Story: Mara and her best friend Benny are spying on her stepmom.
Caution: This Supernatural Sex Story contains strong sexual content, including Hypnosis Mind Control Reluctant Lesbian Heterosexual Fiction Horror Magic Vampires Cuckold Sharing Mother Daughter FemaleDom Humiliation Torture Group Sex White Male White Female First Masturbation Big Breasts Body Modification Foot Fetish Leg Fetish ENF Halloween Transformation Violence AI Generated .
Mara Beckett had always been the kind of girl who blended into the background without ever really fading away—blonde hair that fell in soft waves down her back, a body that turned heads in the hallways at school with perky tits that strained just right against her fitted tops and an ass that looked killer in her favorite skinny jeans, but she never played it up. She dressed stylish, sure, like those cropped sweaters and high-waisted shorts that showed off her toned legs, but nothing too wild, nothing that screamed for attention. Good grades, a tight circle of friends, and a dad who was some big-shot CEO always jetting off to meetings in cities she couldn’t pronounce. Her mom had died when she was little, leaving this massive house in the Suburbs, that felt more like a museum than a home, empty most days. And then there was Benny Whitaker, her best friend since they were kids building forts in the backyard next door. Benny was the steady one, a bit soft around the edges—chubby in that cute, huggable way, not sloppy, just carrying a little extra that made him look approachable, always cracking jokes to make her laugh. They’d grown up together, shared secrets, cried over stupid crushes, but it never crossed that line. Classic friendzone, and Mara liked it that way.
Lately, though, shit had gotten weird at home. Her dad had brought Anastasia into their lives about 10 months ago, this stunning black-haired woman with a body that could stop traffic— slim and fit, but with these massive, perfectly round tits that looked like they’d been sculpted, a round ass that swayed hypnotically, and legs that went on forever. Anastasia dressed like she owned the world: sky-high heels clicking across the marble floors, elegant outfits that hugged every curve, sometimes sheer stockings that made her legs look endless, or edgy leather skirts with tops that plunged low enough to tease. Even on lazy days around the house, she’d throw on yoga pants that clung like a second skin or oversized sweaters that somehow still looked sexy as fuck, slipping off one shoulder to show lace underneath. And those nails—always red, glossy, at least two inches long, pointy as daggers, tapping rhythmically when she was thinking or scrolling her phone. Mara’s dad spoiled her rotten: jewelry dripping off her wrists, weekend getaways to private beaches, dinners at places with waiting lists a mile long. But when he’d drag her on those business trips that were mostly him locked in conference rooms, Anastasia would beg off sometimes, saying she had a headache or just wanted to relax at home. That’s when the weirdness ramped up. She’d get distant, closed off, disappearing late at night and slipping back in quietly, heading straight to the master bedroom without a word.
Mara wasn’t stupid. She saw the signs. Anastasia played the perfect stepmom around her dad—sweet smiles, asking about school, complimenting Mara’s outfits—but Mara felt the fakeness underneath, like Anastasia was just biding her time for the money, the lifestyle. Another gold digger latching onto her dad’s wealth. If she could catch her cheating, prove it with pics or video, she could show her dad and boot the bitch out. It ate at her, this suspicion building like a slow burn in her gut, making her watch Anastasia Closer.
One night, it all clicked into place. Mara pretended to head to bed early, but she texted Benny: “Come over quiet. Need u to see this shit.” He showed up quick, sneaking through the side gate like old times, and they huddled in her room, lights off, peeking through the curtains. Sure enough, around midnight, Anastasia slipped out the front door in this sleek black dress that hugged her huge tits and ass, stockings shimmering under the porch light, heels silent somehow on the pavement—like she was gliding. No car, just walking into the night. Mara grabbed Benny’s arm, her heart pounding. “That’s it. She’s meeting some dude. We follow her.”
Benny hesitated, his face flushed in the dark. “Mara, this could be dangerous. What if—”
“Fuck that,” she whispered fiercely, already pulling him out the back. “If she’s cheating, we get proof. Come on.”
They tailed her from a distance, sticking to shadows, hearts hammering as Anastasia led them deeper into the neighborhood, past a few lawns and into a dimly lit park a few blocks over. The air was cool, crisp, carrying that late-night silence where every rustle felt amplified. They ducked behind bushes, close enough to see evrything but hidden, as Anastasia approached a bench where a young couple was tangled up, making out heavy—hands roaming, lips locked, the guy’s arm around the girl’s waist pulling her closer.
Anastasia stopped right in front of them, just standing there, staring down. The couple broke apart, noticing her. The guy looked pissed, wiping his mouth. “Can I help you?” No answer from Anastasia, just that steady gaze, her red nails catching faint light as her hand hung loose at her side. The guy shifted, annoyed. “Hey, lady, what the fuck do you want?”
Still nothing. The silence stretched, turning creepy, the girl clutching the guy’s arm now, uneasy. The guy stood up fast, all macho posturing, chest puffed. “I said—”
It happened so quick Mara almost missed it. Anastasia’s hand shot up, those long red nails flashing like blades, a swift slash across the guy’s throat. Blood sprayed hot and dark, arcing in the moonlight, and before he could even gurgle, Anastasia’s head darted forward, mouth latching onto the gash. She drank deep, gulps audible in the still night, the guy’s body jerking once, twice, then slumping lifeless in to her arms, blood pooling black on the pavement.
The girl stared, frozen in shock, mouth open in a silent scream before it ripped out as one sharp, piercing wail. Anastasia released the guy, turning with blood smeared gloss on her lips, and lunged. Fangs—Mara saw them now, sharp and real—sinking into the girl’s neck. The scream cut off wetly, body twitching as Anastasia fed, those huge tits pressing against the struggling girl, red nails digging into shoulders for leverage.
Benny freaked first, crashing backward into the bushes. “Holy shit, holy fucking shit, Mara—what the fuck—” His voice cracked, phone tumbling from his hand where he’d been filming shaky footage.
Mara’s world spun, stomach churning, but she clamped a hand over his mouth, dragging him deeper into the dark. “Shut up, Benny! Fuck, calm down!” Her own voice shook, but she forced steel into it, mind racing. Anastasia finished, wiping her mouth delicately with one nail, then just ... walked away, like nothing happened, heels clicking faintly as she vanished into the night.
They scrambled home, Benny hyperventilating the whole way, Mara gripping his sleeve tight. Back in her room, door locked, she paced while he sat on the bed, pale as hell. “That wasn’t cheating,” he muttered. “That was ... vampire shit. Real fucking vampire.”
Mara stopped, staring out the window where the park lights still glowed distant. “Yeah. But we got it on video? Your phone—”
He checked, nodding shakily. “Some of it. Blurry, but ... the slash, the drinking. Fuck, Mara, we call the cops?”
“Not yet.” She sat beside him, mind whirring. “It’s not enough. She’ll deny it. Say it’s fake, blurry deepfake bullshit. Everyone will believe her over us. We need more. Clear proof. Next time she goes out, we follow again, film better. Then we show Dad, the police, everyone.”
Benny swallowed hard, but nodded. “Okay. Yeah. Tomorrow?”
“Tomorrow.” Mara leaned into him a bit, needing the familiar comfort of her best friend, even as her skin crawled thinking about those red nails slicing flesh, the way Anastasia’s body had moved—so graceful, so deadly.
The next day dragged endless. Mara played it cool at home, chatting with Anastasia over breakfast like nothing was wrong. The stepmom looked flawless as ever—hair perfect, makeup subtle but smoky around the eyes, wearing a silk robe that gaped just enough to show cleavage from those massive fake tits, red nails wrapping around a coffee mug. “Sleep well, sweetie?” she asked, voice smooth as honey.
“Yeah, great,” Mara lied, forcing a smile. That evening, she packed an overnight bag loud enough for Anastasia to hear. “Crashing at Sarah’s tonight. Study group ran late—might just stay over.”
Anastasia’s lips curved, those pointy nails tapping the counter. “Have fun, darling. Don’t do anything I wouldn’t do.”
Mara rolled her eyes inwardly, texting Benny as she “left.” He picked her up a block away, and they parked across the street, hidden in his car, waiting as night fell.
Hours ticked by. Nothing. No movement from the house. Benny fidgeted. “Maybe she’s full. From last night.”
“Or maybe she knows,” Mara whispered, panic creeping in for the first time. Her heart thudded uneven. What if Anastasia had seen them? Smelled them? Those horror stories flashed—vampires knowing everything.
Benny reached over, squeezing her hand. “We bail if—”
Headlights cut the dark. A beat-up car pulled up, lanky guy inside—kinda skinny, awkward, climbing out with a pizza box from the backseat. Delivery dude, obviously. He rang the bell.
Door opened, and there was Anastasia—fuck, dressed to kill. Tiny black lace lingerie barely covering anything, those huge tits spilling over a push-up bra, ass cheeks peeking from thong panties, sheer stockings held by garters, sky-high red heels making her legs look infinite. Red nails gleamed as she beckoned him in with one finger.
Pizza guy stepped inside, door closing. Five minutes. Ten. No sign of him leaving.
Mara’s breath hitched. “He’s not coming out. She’s ... doing something.”
Benny’s eyes were wide, glued to the house. “We go in?”
“Fuck yes.” Adrenaline surged. They slipped out, circling through the massive garden—past the pool glowing blue in the dark, uncut hedges hiding them as they crept to the sliding glass doors left cracked open for air.
Inside was lit warm, modern open plan—kitchen flowing to living room. Pizza box sat ignored on the counter. Voices drifted from the living area: Anastasia’s low, sultry murmur, the guy’s responses weak, slurred.
They peeked from the shadows Looking for a position to see something. Pizza dude stood there, posture slumped, eyes locked on Anastasia as she circled him slow, like a predator. She wore that lingerie like armor, heels clicking soft on hardwood, red nails trailing lightly over his shoulder as she spoke words they couldn’t quite catch—seductive, rhythmic, pulling him in.
His gaze went glassy, body swaying. Anastasia smiled, lifting one hand, sweeping a single long red nail inches from his face, back and forth, slow pendulum.
He dropped to his knees instantly, lips pressing reverent kisses to her heels, tongue darting out to lick the shiny leather. Hands fumbled at his clothes—shirt off, pants down—stripping clumsy but urgent as he worshipped those shoes, crawling after her when she turned, ass swaying hypnotic as she led him toward the stairs.
Mara and Benny exchanged a look—pure shock, but something hotter twisting low in Mara’s belly watching this domination unfold. Phone out, Benny started rolling again as they crept closer, silent, following up the plush carpeted stairs.
At the master bedroom door, left ajar just a sliver, they peered in.
Pizza guy—fully naked now, cock hard and throbbing—lay splayed on the massive bed, arms out, staring up in total awe. Anastasia straddled his thigh, one hand wrapped around his shaft, stroking slow and firm, those red nails grazing teasingly close to skin without scratching. Her other hand held his wrist to her mouth, fangs sunk shallow, sipping blood in lazy pulls as she pumped him.
He moaned loud, hips bucking, completely lost. “Please ... oh fuck...”
She hummed around the bite, stroking faster, thumbnail circling the head slick with precum. He came quickly, ropes shooting high, splattering her palm as she angled it to catch every drop.
Anastasia released his wrist, licking it and the punctures closed somehow, then brought her cum-filled hand to her lips, tongue lapping it all up slow, eyes half-lidded in bliss. Last thick swallow, and she sighed, body arching as power visibly rushed through her—skin glowing, tits heaving.
Mara couldn’t look away, thighs clenching involuntary, heat building fast between her legs watching those nails, that control. Benny’s breathing was ragged beside her, phone steady but hand shaking.
Then a silent buzz. His phone vibrated in the silence—a stupid message notification.
The bedroom door swung open wide on its own, no hand touching it and there stood Anastasia, blood and cum shiny on her lips, eyes locking on them both.
“Naughty children,” she purred, voice dripping dark amusement. “Spying on Mommy?”
Mara’s heart slammed against her ribs so hard she felt it in her throat, the bedroom air thick with the metallic tang of blood and the musky scent of fresh cum. Anastasia stood framed in the doorway, naked except for those sheer black stockings and garters, her massive tits heaving slow, red glossy lips curled in a smirk that was equal parts amused and predatory. Those two-inch nails caught the low light like wet rubies as she lifted one hand, fingers splayed.
“Naughty, naughty,” she purred again, voice low and velvet, sliding straight into Mara’s spine like warm oil. “You two really thought you could sneak up on me?”
Benny made a choked sound, stumbling back a step, phone still clutched white-knuckled in his hand. Mara felt her own legs lock in place before she even realized what was happening—some invisible pressure wrapping around her ankles, her wrists, pinning her arms to her sides. Benny froze mid-step too, like someone hit pause on him. Tele-fucking-kinesis. Real. Right in front of them.
“Fuck you,” Mara spat, forcing the words out even as her body refused to move. “You murdering bitch. We saw what you did in the park. We’ve got it all on video.”
Anastasia tilted her head, black hair cascading over one bare shoulder, and took a slow step forward. Her heels didn’t make a sound on the carpet now; she was gliding, hips rolling, that perfect round ass flexing with every motion. “Do you, darling? Let’s see.”
She flicked two fingers. Benny’s phone ripped from his grip, flying across the room into her waiting palm. Those long red nails tapped the screen once, twice —unlocking it somehow without the code. Her eyes glowed faintly, a deep crimson shimmer, as she scrolled. “I can’t seem to find anything About me but ... Oh my. So many pictures of my sweet stepdaughter.” She turned the screen toward Mara.
There they were—dozens of candid shots Benny had secretly snapped over the years: Mara bending over to grab something from her locker, her ass tight in yoga pants; Mara laughing by the pool in a bikini, tits bouncing; Mara asleep on his couch during movie night, lips parted, one leg kicked out. Hundreds of them. Even some zoomed-in shots of her feet in sandals, toes painted pink, soles arched.
Benny’s face went scarlet. “I—I didn’t—”
“Shut up,” Mara hissed at him, but her voice cracked. Betrayal burned hot in her chest, mixing with the fear and the weird, unwanted heat that had been building between her thighs since she watched Anastasia milk that delivery guy dry.
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