Step Daddy's Pet
Copyright© 2026 by Thomas Spencer
Chapter 5
Incest Sex Story: Chapter 5 - 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’s tongue still tingled with the thick, salty residue of Ryan’s cum. After he’d finished unloading down her throat in the bedroom, he hadn’t let her simply swallow and be done. He’d gripped the base of his still-throbbing shaft and slowly dragged the glistening head across her lips, painting them with the last beads of semen before pushing back inside her mouth.
“Clean every inch, pet,” he’d ordered, voice low and velvet-smooth. “Master doesn’t like mess.”
She’d obeyed instantly—lips sealing tight around him, tongue swirling in long, worshipful strokes. She licked the underside, tracing every bulging vein, then sucked gently on the sensitive crown until he was spotless. When he finally pulled out with a wet pop, a thick string of saliva and cum connected her lower lip to his tip. It snapped and fell to the hardwood floor in a small, pearly puddle.
Ryan glanced down. “That too.”
Kayla lowered her face to the floor without a word, ass high, breasts pressed to the cool wood. She extended her tongue and lapped the sticky mixture—salty, warm, faintly bitter—swallowing it down while her cheeks burned with humiliation. The act should have disgusted her. Instead, it made her clit throb harder, fresh wetness seeping between her thighs. Pleasing him had become her only priority.
Ryan stepped to the closet, retrieving the tail plug she’d seen on her mother days earlier: glossy black silicone base, fluffy white fur tail, and a small but powerful vibrating motor in the tip. He held it up, letting her see the faint sheen still clinging to the shaft—evidence of where it had been.
“Downstairs. Now.”
He tugged the leash. Kayla dropped to all fours and crawled after him, knees padding softly across the carpet, then the harder tile of the hallway and stairs. Each step made her heavy D-cups sway pendulously, nipples brushing the floor, sending little jolts straight to her core. The collar tugged rhythmically against her throat, a constant reminder of who owned her now.
In the dining room he stopped beside the long oak table. “Up.”
Kayla climbed onto the polished surface, palms and knees sinking slightly into the wood, back arched, ass presented like an offering. Ryan circled behind her, fingers hooking the waistband of her skirt and panties. He peeled both down together in one slow, deliberate motion, leaving her completely bare from the waist down. Cool air kissed her soaked folds and puckered hole.
He brought the tail plug to her mouth. “Clean it first. Thoroughly.”
Kayla’s stomach flipped. She could smell it—faint, musky traces of her mother’s ass still clinging to the silicone. The thought was revolting ... and yet the command burned hotter than any shame. Master wanted this. Nothing else mattered.
She parted her lips, tongue flicking out tentatively at first. The taste hit her—earthy, slightly tangy, unmistakably intimate. She wrinkled her nose but kept going, circling the tip, then taking more into her mouth. She sucked gently, tongue sliding along the length, cleaning every inch until the plug shone with only her saliva.
Ryan hummed approval. “Good girl. That’s how pets earn their place.”
He knelt behind her, spreading her cheeks wide with strong hands. The plug pressed cold against her tight ring. He twisted it slowly, letting her feel the stretch, then pushed—steady, unrelenting—until the flared base seated flush against her skin. The fluffy tail settled between her round buttocks, swaying gently.
Then he flicked the switch.
A deep, powerful buzz erupted inside her ass—low at first, then ramping up, vibrating right against her sensitive walls and sending shockwaves through her pussy.
“Ahhh ... uhm, fuck—Master!” Kayla moaned, hips jerking involuntarily. The humiliation crashed over her like a wave: tailed like an animal, plugged with something that had been inside her own mother, vibrating relentlessly while she dripped onto the table. She was so wet it was obscene—clear strings of arousal stretching from her clit to the wood below.
Ryan watched her tremble for a long moment, enjoying the sight. “Down. Knees.”
She slid off the table carefully, dropping to the floor. Ryan produced soft black rope from a drawer, binding her wrists tightly behind her back—elbows pulled close, shoulders straining, chest thrust forward. Next came the red ball gag, forcing her jaw wide; drool immediately began to pool at the corners of her lips. Finally, the nipple clamps—cold steel teeth biting down on her already swollen peaks, the short chain swaying between them with every shaky breath.
He clipped the leash to the table leg, gave it a testing tug, then looked down at her.
“Stay,” he ordered, voice firm and final. “Don’t move a muscle until I return. Understand?”
Kayla nodded frantically, muffled whimper escaping around the gag.
He left the room.
The vibrator never stopped. It buzzed inside her ass in maddening patterns—steady hums, sudden pulses, long waves that made her inner walls flutter. The clamps tugged with every tiny movement. Drool poured from her stretched mouth, dripping onto her clamped tits, then the floor. She moaned continuously—deep, garbled sounds behind the gag—body trembling on the edge.