My StepSister wants to be my sex doll during Day long

Title: The StepSister’s Sex Doll fantasy

The sun had barely peeked through the curtains when Mikey woke up to the sound of his step-sister Lily thumping around in the kitchen, the aroma of freshly brewed coffee wafting in from below. He groaned, stretching as he took in the light filtering in from the window, and wondered what sort of frivolous whim would entail Lily barging into his room and rolling him out of bed.

“Rise and shine, squirt!” Lily trumpeted, bursting through the door. “Big day ahead of us!” She wore nothing but a skimpy pair of Daisy Dukes that barely contained her ample ass and a tight tank top that did little to obscure the lacy demi-bra underneath. “I’ve been dying to get my hands all over you, little bro. Hope you’re ready for a full day of lascivious fun!”

Shock jolted through Mikey at the unexpected announcement. “Huh?”

“I’m going to play with my new toy all day,” Lily giggled, running a finger along the waistband of her shorts. “You know how much I love an interactive experience.” She sauntered up to Mikey, whose jaw had gone slack in disbelief, and leaned over to plant a long, lingering kiss on his lips, her tongue darting past to brush his teeth. When she pulled back, she had him in a headlock and planted a hand firmly on his still-flaccid cock under the sheets. “Mmm, ready to be my pretty little fuck toy indeed!”

Mikey yelped as Lily’s fingers wrapped around his shaft, squeezing none too gently. He looked around, eyes darting here and there as if searching for a way out. “But Lils…we can’t! Mom and Dad-”

“Mom, my ass. I put their sedative in the coffee,” Lily snorted, thumbing over his cockhead and smearing the bead of pre-cum that had formed at the tip. “We’re all alone, baby brother. I’ve been waiting for this all week, and now I’m going to give you maximum pleasure all day long.” She winked salaciously. “Starting with a nice wet blowjob.”

She tugged the covers off, exposing Mikey to the chill morning air, and licked her lips hungrily at the sight of his morning wood poking skyward. “Goodness, little brother, how did I not realize how big your cock had gotten? Are you even eighteen yet?” She shook her head, hand wrapping around his dick. “Doesn’t matter. You’re gonna help me celebrate my birthday church mouse style.”

Lily dropped to her knees on the floor in a flash, pushing Mikey’s legs apart and grabbing his thighs in a vice grip. She stuck her tongue out to lap at the fluid leaking from his slit, her hot breath wafting over the sensitive head. “Mmm…my treat.” She fastened her full lips tightly around the head and started sucking, rubbing her cheeks against it for maximum effect.

She bobbed her head up and down his length, taking more of him into her mouth with each thrust. Mikey groaned, surprised at how rough Lily was being. He half expected to feel her teeth or hear her start gagging, but instead she was slurping and sucking him like a pro, tongue flicking over the underside.

“Fuck…Lily!” He grunted as she deep throated him, her tiny nose pressing against his pelvis. She held him there a moment before slurping back up, tongue lashing his shaft the whole way.

Up and down, up and down she went. Mikey’s cock throbbed, blood pumping into it now that he was fully awake. Lily’s lips felt good and tight around him, her wet tongue working all sorts of magic to make him nearly delirious with pleasure. He thrust into her mouth, fucked her hot little mouth, his balls clenching tight as he felt his orgasm fast approaching.

“F-Fuuuck! I’m gonna cum!” Mikey yelled, voice cracking. For a second he thought she would pull off and finish him with her hand instead, but she kept sucking, took him even deeper. He detonated, semen shooting directly down her eager throat. He could feel her swallowing frantically, gulping down his thick seed like she was starved for it. “Ffffuck!” He panted, head thrown back, cumming harder than he ever had in his life.

When he finished spurting, Lily kept him in her mouth, calming breathing while she suckled, helping him stay hard despite having just cum. “Mmm…My favorite snack,” she said after popping off, face shiny with spit and cum, eyes hooded. “Get your clothes on, baby brothers, you’ve got a busy day ahead of you climaxing for your naughty sis!”