Step Daddy's Pet
Copyright© 2026 by Thomas Spencer
Chapter 4
Incest Sex Story: Chapter 4 - Kayla, an 18-year-old blonde college student with a highly active sex life, becomes fixated on her mother’s new boyfriend, Ryan—a tall, dominant man with an impressive physique and endowment. After spying on their intense, kinky encounters, Kayla’s desire leads her to cross the line. Ryan quickly collars and trains her as his submissive “pet,” just as he has her mother. The household shifts into a consensual pet-play dynamic, with both women leashed, plugged, and eagerly serving him. What began
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Ma/ft Fa/ft Ma Fa ft Mult Teenagers Coercion Consensual Drunk/Drugged Reluctant Romantic Slavery Lesbian BiSexual Heterosexual Fiction Cheating Sharing Slut Wife Incest Mother Father Daughter BDSM DomSub MaleDom Humiliation Light Bond Rough Spanking Group Sex Harem Orgy Polygamy/Polyamory Interracial Black Male White Male White Female Anal Sex Cream Pie Double Penetration Facial Masturbation Oral Sex Sex Toys Squirting Voyeurism AI Generated
Kayla was on all fours, the cold floor pressing against her knees and palms. A bowl sat in front of her, filled with bland, mushy dog food—kibble soaked in some gravy that tasted like nothing, humiliating in its plainness. She lapped at it obediently, tongue dipping in, scooping up mouthfuls that made her stomach turn even as heat pooled between her legs. The collar around her neck was tight, the leash attached dangling loose for now.
Suddenly, a sharp tug—strong, unyielding—yanked her head back, the collar choking her throat for a breathless second. She gasped, eyes watering, looking up at him. Master. Ryan towered over her, his 6’5” frame naked and powerful, muscles flexing as he held the leash firm. That piercing green gaze bored into her, commanding total submission.
“Bark for Master,” he said, voice deep and smooth, laced with that sensual authority that made her shiver.
“Woof ... woof,” she barked softly at first, then louder, desperate to please. Her cheeks burned with shame, but her pussy throbbed, wetness dripping down her thighs.
“Good girl,” he murmured, stepping closer. His cock hung heavy in front of her—already semi-hard, that monstrous 9 inches thick with 6.5 inches of girth, veins tracing along the shaft like roads on a map. He stroked it lazily, making it swell fully erect, the head flaring purple and glistening.
Kayla’s mouth watered. She leaned forward eagerly as he guided it to her lips, the leash still taut in his other hand. “Open,” he commanded softly.
She did, lips parting wide as he slid in—slow at first, letting her feel every inch stretching her mouth. The taste of him—salty skin, faint musk—flooded her senses. She moaned around him, “Mmm ... uhm,” tongue swirling the underside, tracing those thick veins.
Ryan tugged the leash lightly, pulling her deeper. “That’s it ... suck Master’s cock like a good pet.” His voice was husky, encouraging but firm.
Kayla bobbed her head, taking more—halfway, then deeper, gagging softly as the head hit her throat. Drool escaped the corners of her mouth, spilling down her chin, onto her full DDs swaying beneath her. She hollowed her cheeks, sucking hard, one hand instinctively reaching to cup his heavy balls—rolling them gently, feeling their weight.
“Fuck ... yes,” he groaned, hips rocking forward now, feeding her more. She took it, eyes locked up at him, tears pricking from the stretch but loving every second. He thrust deeper, throat-fucking her steadily—wet, sloppy sounds filling the air as she gurgled around him.
“Ahh ... Master,” she mumbled when he pulled back for a breath, strings of saliva connecting her lips to his shaft. Then she dove back, licking hungrily—long strokes from base to tip, swirling the head, sucking the precum beading there.
He gripped her hair now, leash wrapped around his fist, controlling the pace. Faster, rougher—pistoning into her mouth, balls slapping her chin. “Take it all, pet ... worship it.”
She did, lost in it—gagging, drooling, humming vibrations around him. Her free hand slipped between her legs, rubbing frantically as the humiliation and dominance pushed her higher.
Ryan’s breaths grew ragged, muscles tensing. “Gonna feed you ... swallow every drop, good girl.”
She nodded frantically, sucking harder—
And exploded awake.
Kayla’s body arched off the bed, clutching the sheets in white-knuckled fists. Her pussy clenched hard, squirting through her soaked panties—hot juices flooding the fabric, soaking the sheets beneath her. “Yes ... Master!” she moaned loudly, voice echoing in the empty room, waves crashing as she shook, thighs trembling.
Fuck. She collapsed back, panting, heart racing. The dream lingered—his taste, the tug, the fullness. Guilt flickered, but lust drowned it. She needed it. Needed him.
Morning came too slow. Kayla dragged herself downstairs, still buzzing. Her mom was at the table, sipping coffee, wearing a delicate necklace—a thin silver chain with a small O-ring pendant. It looked elegant, normal enough for work, but now ... Kayla’s eyes narrowed. She’d asked about it weeks ago when it first appeared. “Just a gift,” her mom had said vaguely, changing the subject.
Day collar. It had to be.
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