The backyard was quiet except for the distant hum of a lawnmower two houses down. It was mid-afternoon, the sun blazing hot, and I had come home early from work. I wasn’t expecting to see my 22-year-old stepsister, Mia, lying on a towel in the grass completely topless, her perky 32A tits fully exposed to the sun, tiny pink nipples hard from the breeze.
She had on the smallest red thong I had ever seen. The thin string disappeared between her firm ass cheeks, leaving almost nothing to the imagination. Her smooth, tanned skin glistened with coconut oil. She looked like a little slut who thought no one was home.
I stood at the kitchen window for a long minute, my cock already thickening in my shorts. Mia had always been a teasing little bitch — prancing around the house in tiny shorts, “accidentally” brushing her ass against me, leaving her dirty panties on the bathroom floor. But this was too far.
I stepped outside quietly. The sliding door clicked shut behind me.
Mia’s eyes flew open. “Oh shit— Jake!”
She scrambled to cover her small tits with her arms, but it was too late. I had already seen everything.
“What the fuck do you think you’re doing?” I growled, towering over her.
“I… I thought you were at work all day,” she stammered, face turning bright red. “Please don’t tell Dad.”
I grabbed her wrist and yanked her up. Her little tits bounced as she stood, oil-slick and shiny. “You’re sunbathing like a whore in our backyard and you’re worried about Dad? Bend over the lounge chair. Now.”
“Jake, no— I’m sorry—”
I didn’t wait. I pushed her forward over the padded lounge chair, her ass up high, that pathetic red thong barely covering her pussy. Her cheeks were already trembling.
“You’ve been asking for this for years, Mia.”
SMACK!
My palm cracked hard across her right ass cheek. The sound echoed loud in the backyard. She yelped, her body jerking.
SMACK! SMACK! SMACK!
I spanked her fast and merciless, watching her pale ass turn pink, then red. The coconut oil made every slap louder and sting more. Her little thong was soaked through the front.
“Ow! Jake— fuck, that hurts!” she cried, kicking her legs.
“Good. It’s supposed to hurt, you little slut.”
I hooked my fingers in her thong and ripped it down her thighs in one motion, exposing her completely shaved pussy. She was dripping wet. A long string of her juices stretched down her inner thigh.
“Look at this messy cunt,” I laughed darkly. “Getting spanked turns you on?”
SMACK! SMACK! SMACK! SMACK!
I rained down harder, covering every inch of her round ass until both cheeks glowed bright crimson. Mia was sobbing now, but her hips kept pushing back toward my hand like a bitch in heat.
I spread her cheeks roughly, exposing her tight pink asshole and dripping slit.
“You’re going to learn your lesson today.”
I brought my hand down directly on her wet pussy — SLAP! — making her scream. Her knees buckled but I held her in place.
Again and again I spanked her soaked cunt, the wet sounds obscene. Her juices splattered with every strike. She was shaking, crying, and moaning all at once.
When her ass and pussy were burning red, I finally stopped. Mia was a whimpering mess, ass high in the air, tears running down her face.
I unzipped my shorts and pulled out my thick, rock-hard cock. Pre-cum was already leaking from the tip.
Mia looked back, eyes wide. “Jake… we can’t…”
“Too late, little sister.”
I rubbed my swollen cockhead up and down her soaked slit, coating myself in her cream. Then I pushed forward in one brutal thrust, burying every inch inside her tight pussy.
“Fuuuuck!” she screamed.
Her walls clenched around me like a vice. I grabbed her oiled hips and started pounding her hard, the sound of my balls slapping her clit mixing with the wet squelching of her cunt.
I spanked her bright red ass while I fucked her, making her cry out with every thrust.
“You like getting fucked by your brother while your ass is still burning?” I growled.
“Yes— oh god, yes!” she moaned, completely broken.
I fucked her faster, deeper, using her like a toy. Her small tits swung beneath her as I railed her from behind. I reached around and pinched her hard nipples, twisting them until she squealed.
After a few minutes I pulled out, spun her around, and shoved her onto her back on the lounge chair. I pushed her legs wide open, her red spanked ass and dripping pussy on full display.
I slammed back inside her in missionary, leaning over so I could watch her face while I destroyed her cunt. Her eyes rolled back, mouth open in a silent scream of pleasure and pain.
I fucked her so hard the lounge chair scraped across the concrete. Her juices ran down my balls and onto the towel.
“Beg me to cum inside you,” I demanded.
“Please… please cum inside your sister’s pussy,” she sobbed. “Fill me up, Jake. I want your cum.”
I pounded her mercilessly, feeling her pussy start to flutter. She came hard, screaming my name, her walls milking my cock. That pushed me over the edge.
With a deep groan I buried myself to the hilt and exploded, pumping thick ropes of hot cum deep into her womb. I kept thrusting through my orgasm, forcing every drop inside her.
When I finally pulled out, her pussy was gaping, red, and overflowing with my cum. It leaked down over her spanked ass and onto the towel.
Mia lay there panting, legs still spread, looking thoroughly used.
But I wasn’t done.
I flipped her over again, pushed her face down into the cushion, and spread her cheeks. My cum dripped from her pussy onto her asshole.
I pressed my still-hard cock against her tight little rosebud.
“No— Jake, not there, I’ve never—”
Too late.
I pushed forward, forcing my thick cock into her virgin ass. She screamed into the cushion as I slowly but relentlessly buried every inch inside her tightest hole.
Once I was balls-deep, I started fucking her ass with long, deep strokes. The feeling was incredible — so much tighter than her pussy.
I spanked her sore cheeks while I sodomized her, turning her cries into broken moans of filthy pleasure.
“You’re my little anal slut now,” I growled, pounding harder.
Mia came again, this time from her ass, her whole body shaking violently. I kept fucking her through it until I exploded a second time, flooding her bowels with even more cum.
I pulled out and watched my seed leak from both her holes.
Mia collapsed, a sweaty, spanked, cum-filled mess.
From that day on, whenever the sun was shining, Mia would “accidentally” sunbathe topless in the backyard… knowing exactly what punishment — and reward — waited for her when I got home.
