Sarah had always been the one in charge, even when we were kids. At twenty-five she still ran the house we shared after Mom moved out, and I was the twenty-two-year-old little brother who paid rent by doing whatever she said. One humid Friday night she called me into her bedroom wearing nothing but a black silk robe that barely covered her ass.
"Strip," she ordered, voice flat and hard. I pulled off my shirt and jeans without a word. My cock was already half-hard from the way she looked at me. She let the robe fall open, showing heavy tits and a trimmed strip of dark hair between her thighs. "On your knees, little brother. You know the drill."
I dropped. She stepped forward and grabbed my hair, yanking my face straight into her cunt. "Lick. And don't you dare stop until I say." Her taste flooded my tongue, sharp and musky. I dragged it up and down her slit the way she liked, slow then fast, sucking her clit between my lips. Sarah moaned low and ground down harder, riding my face until my nose was buried in her and I could barely breathe.
"Good boy," she growled. "Keep that tongue working while I tell you what a filthy incest slut you are." She rocked faster, juices coating my chin. "You love eating your big sister's pussy, don't you? Say it."
I mumbled the words against her folds, tongue never stopping. "Yes, Sarah. I love eating your pussy."
She came hard, thighs clamping my head, flooding my mouth. When she pulled back her eyes were dark. "Bed. Face down.
Ass up."
I climbed onto the mattress. She strapped on the thick black dildo she kept in the drawer and slicked it with lube. No warm-up. She lined up and shoved the head straight into my ass, one rough thrust that made me grunt. "Take it," she hissed, gripping my hips. "This is what happens when little brothers get hard for their sisters." She fucked me deep and steady, each stroke hitting the spot that made my cock leak onto the sheets. Her free hand reached under and stroked me in time with her thrusts.
"Don't come yet," she warned. "I want that load somewhere else."
She pulled out, flipped me onto my back, and climbed on top. She sank down on my cock in one slick motion, her cunt tight and hot around me. "Hands above your head. Don't touch." She rode me hard, tits bouncing, one hand pinning my wrists while the other slapped my chest. "Look at you, letting your sister use your dick like a toy. You were made for this."
Every time I got close she slowed down, squeezing me inside her until the urge backed off. She did it again and again until I was shaking and begging. "Please, Sarah. Let me come."
She leaned down, lips at my ear. "Beg properly. Tell me whose cock this is."
"Yours. My sister's. Please let your little brother come in your cunt."
Sarah grinned, wicked and satisfied, then slammed down fast and tight. "Come for me." I exploded inside her, pulse after pulse, while she kept riding through it, milking every drop. When I was empty she stayed seated, letting my softening cock slip out only when she was ready. She swung a leg over my face again. "Clean it up. Every drop you put in me."
I licked my own cum from her pussy, swallowing obediently while she sighed and stroked my hair. Later she pulled me into her arms, still naked, and kissed the top of my head. "Good boy. Same time tomorrow."
I closed my eyes, already half-hard again at the promise. In this house, my sister always got exactly what she wanted.
