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Step Daddy's Pet

Thomas Spencer

Cover

Step Daddy's Pet

Thomas Spencer

Published by Thomas Spencer, 2025.

Table of Contents

Title Page

Copyright Page

Chapter One

Chapter Two

Chapter Three

Chapter Four

Chapter Five

Chapter One

The Lamborghini's leather seats creaked under them as Kayla arched her back, her blonde hair spilling over the headrest like golden silk. The college athlete—Jake, some star quarterback with a trust fund and a body carved from endless gym hours—had her bent over in the backseat, his 6'4" frame dominating the cramped space. He was ripped, every muscle flexing as he gripped her hips, slamming into her ass with rough, relentless thrusts. Kayla's round buttocks jiggled with each impact, her decent thighs trembling as she pushed back against him, loving the burn, the stretch.

"Fuck, yeah... harder," she gasped, her voice breathy and raw. Her D-cup breasts swayed heavily beneath her, nipples hard against the cool leather. Jake grunted, one hand tangling in her hair, yanking her head back just enough to make her moan louder. "Ahh... oh god, yes..." The car rocked slightly on its suspension, parked in some dark alley behind the campus party they'd ditched hours ago.

He pounded deeper, his cock thick and unyielding in her tight ass, the lube from earlier making everything slick and filthy. Kayla's fingers dug into the seat, her body coiling tighter. She could feel it building—that intense pressure deep inside. "Don't stop... uhm, fuck, I'm gonna..." Her words dissolved into a sharp cry as she squirted, her pussy clenching and gushing over his balls, soaking the seat beneath them. Jake growled in approval, his pace turning brutal, hips slapping against her cheeks.

"Take it, you little slut," he muttered, voice low and cocky. Kayla just whimpered, riding the waves, her body shaking. Moments later, he buried himself deep and came hard, flooding her ass with hot spurts. She felt every pulse, the warmth spreading inside her as he held her there, grinding slowly until he was spent.

He pulled out with a wet pop, smirking as he zipped up. Cum leaked from her stretched hole, trickling down her thighs. Kayla slumped against the seat, breathless, a satisfied grin on her lips. "Damn, that was good," she murmured, but Jake was already starting the engine, dropping her off at her house like it was nothing—just another conquest for him.

She slipped out of the Lambo in a messy state, her short skirt hiked up, thighs sticky with her own juices and his load seeping out. The cool night air hit her flushed skin as she quietly unlocked the front door, tiptoeing upstairs to avoid waking anyone. Her mom worked late shifts sometimes, but better safe. In her room, Kayla stripped off her clothes, glancing at herself in the mirror—blonde waves tousled, blue eyes bright with post-fuck glow, her curvy body marked with faint red handprints on her ass.

She headed to the bathroom, turning the shower on hot. The water cascaded over her, washing away the sweat and cum. She lathered up, fingers sliding between her cheeks to clean thoroughly, rinsing the sticky trails from her thighs. It felt good, almost soothing after the roughness, but her mind was already drifting to the next thrill. At 18, she'd fucked more guys than most girls her age even kissed—college boys, older men, anyone who caught her eye. Sex was her escape, her power. She toweled off, slipped into a loose tank top and shorts, and crashed onto her bed for a bit, scrolling her phone until she dozed lightly.

A couple hours later, her mom's voice called up the stairs. "Kayla? Honey, come down for a minute!"

Groaning softly, Kayla rolled out of bed, running a brush through her hair. She padded downstairs in her casual outfit—no bra, the tank clinging to her full breasts—and froze at the bottom step.

Her mom, Lisa, stood in the kitchen with a man. No—a god. He was 6'5", built like he owned the world, broad shoulders straining against a fitted shirt, arms thick with muscle. His jaw was sharp, dark hair tousled just right, and those eyes... piercing green, holding a quiet intensity that made her stomach flip. Even flaccid, the outline in his jeans was impossible to miss—a heavy, thick bulge that promised something massive.

"This is Ryan," her mom said brightly, beaming up at him with that new-relationship glow. "My boyfriend. Ryan, this is my daughter, Kayla."

Kayla's heart slammed against her ribs. She'd just been fucked senseless, ass still a little sore, but the sight of him hit her like a fresh wave of heat. There was something about him—an aura, raw and magnetic, that made every other guy she'd been with feel like boys. He exuded control, quiet dominance, and fuck, he was gorgeous. Her pussy clenched involuntarily, a subtle throb starting up again.

"Nice to meet you, Kayla," Ryan said, his voice deep and smooth, extending a large hand. His grip was firm, warm, lingering just a second too long as their eyes locked.

She swallowed, forcing a sweet smile, playing the innocent daughter. "Hi... nice to meet you too." Her voice came out steady, polite, but inside she was on fire. She shifted her weight, crossing her arms under her breasts to hide how her nipples had hardened instantly. Don't stare, don't stare...

Her mom chattered on about how they met at the gym—Ryan was some kind of fitness consultant or something successful—and suggested they all have a late lunch together. Sandwiches, nothing fancy. Kayla nodded along, helping set the table, her movements deliberate to keep composed.

At the table, she sat across from Ryan, legs pressed together under the surface as she felt a slow wetness building between her thighs. He was charming, asking her about school, her interests—genuine, but with that underlying strength. "So, senior year?" he asked, taking a bite, his forearms flexing.

"Yeah, just turned 18 a few months ago," she replied lightly, laughing softly at something her mom said. She kept her tone casual, eyes meeting his briefly before darting away, cheeks warming. Every time he shifted, that bulge in his jeans caught her peripheral vision, and she had to fight the urge to squirm in her seat. Her skin felt too hot, breath a little shallow. God, what would he feel like? The thought flashed unbidden, making her bite her lip subtly.

Lunch dragged on with small talk—her mom's work, Ryan's travels—but Kayla played it cool, smiling, nodding, the perfect daughter. Inside, though, she was aching, imagining those big hands on her, that presence overwhelming her completely.

Night fell, and Kayla lay in bed, staring at the ceiling. Sleep wouldn't come. The house was quiet at first, but then... faint sounds. Rhythmic thumps, muffled moans drifting from down the hall—her mom's room.

Curiosity burned hotter than caution. She slipped out of bed, barefoot on the carpet, heart pounding as she crept toward the door. It was cracked open just a sliver, soft light spilling into the hallway. Peeking through, Kayla's breath caught.

There he was—Ryan, naked and magnificent, his 6'5" body towering over her mom on the bed. Muscles rippled as he thrust into her from behind, slow at first but building to powerful, rough strokes. And his cock... oh fuck, it was a monster. Nine inches of thick, veined perfection—6.5 inches around, easily—stretching her mom's pussy wide, glistening with her juices.

Lisa was on all fours, ass up, moaning into the pillow. "Oh god, Ryan... yes, deeper... ahh..." Her body jolted with each slam, breasts swinging.

Ryan's hand gripped her hip firmly, the other reaching around to rub her clit. "Like that, baby? You take it so well," he murmured, voice husky and commanding—sensual, not over-the-top filthy, but enough to make Kayla's knees weak. He picked up speed, hips snapping forward, the wet sounds of skin on skin filling the room. His balls slapped against her with every deep plunge, that massive shaft disappearing inside over and over.

Kayla's hand slipped into her shorts without thinking, fingers finding her slick folds. She was soaked already, clit throbbing as she watched him dominate—flipping her mom onto her back now, legs spread wide as he drove in missionary, one hand pinning her wrists above her head.

"Uhm... fuck, you're so big," Lisa whimpered, arching up to meet him. Ryan leaned down, kissing her neck, thrusting harder, the bed creaking under his power. "Gonna make you come again," he growled softly, grinding deep.

Kayla circled her clit faster, biting her lip to stay silent, her free hand pressing over her mouth. Drool escaped the corner of her lips as she stared, mesmerized by that cock—pistoning relentlessly, veins pulsing, head flaring with each withdraw. Her mom's cries grew louder: "Ahh... yes, right there... oh god!"

Ryan shifted again, pulling out to straddle her chest, stroking that glistening monster over her face. "Open up," he said, voice low and intense. Lisa obeyed eagerly, tongue out as he pumped faster, muscles tensing.

Kayla's fingers plunged inside herself now, two at once, mimicking the rhythm—rough, urgent. Her thighs quivered, breath hitching behind her hand. Fuck, he was perfect... so much bigger, better than Jake or anyone.

With a deep groan, Ryan came—thick ropes erupting across her mom's face, painting her cheeks, lips, tongue. Lisa moaned in delight, licking what she could, as he milked every drop.

The sight pushed Kayla over. Her body tensed, pussy clenching around her fingers as she came hard—waves crashing silently, muffled whimpers into her palm. She shuddered, knees nearly buckling, juices coating her hand.

Ryan collapsed beside her mom, pulling her close for lazy kisses, both spent and glowing.

Kayla backed away carefully, slipping back to her room undetected. She shut the door softly, sliding into bed with her heart racing. That cock... that man. She needed him. Craved him. And she'd find a way to make him hers.

 

 

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