I started flashing my brother on a Tuesday afternoon when our parents were at work. I was eighteen, he was twenty, and the house felt too damn quiet. I walked into the living room wearing nothing but a short tank top and no panties, bent over the coffee table to grab the remote, and held the pose long enough for him to see everything. My shaved pussy lips parted slightly, pink and already wet from the idea of him looking.
He sat on the couch, froze, then his hand went straight to his crotch.
"Fuck, what are you doing?" he muttered, voice low and rough.
"Showing you what you want," I said, straight and filthy. I spread my legs a little wider, reached back, and pulled my ass cheeks apart so he could see my tight little hole too. "You stare at me every day. Now you get the real view."
He didn't look away. His cock pushed hard against his jeans. I stood up, turned around, and lifted the tank top to flash my tits, nipples hard and pointing right at him. Then I walked over, dropped to my knees between his legs, and unzipped him without asking. His dick sprang out thick and veined, already leaking. I wrapped my hand around it and started stroking slow and tight.
"You like your little sister flashing her cunt at you?" I asked, looking up at him with a dirty grin. "Bet you've jerked off thinking about this pussy."
He groaned and grabbed my hair. "Yeah. Every fucking night."
I leaned in and licked the head, tasting his pre-cum, then took him deep in one go. My throat opened around his shaft while I kept my eyes on his. Sloppy, wet sounds filled the room as I bobbed my head, spit running down his balls. He thrust up into my mouth, fucking my face like he'd been waiting years.
After a minute he pulled me off, stood, and bent me over the arm of the couch. He kicked my legs apart and shoved two fingers straight into my dripping cunt. "Soaked already," he growled. "You love this incest shit, don't you?"
"Love flashing it for you," I panted. "Now fuck me with that brother cock."
He lined up and slammed in deep. One thrust, balls-deep, stretching me wide. I cried out and pushed back against him, meeting every hard stroke. He grabbed my hips and pounded me, skin slapping loud and nasty. My tits bounced under the tank top. Every time he bottomed out I felt his heavy balls slap my clit.
"Harder," I begged. "Fill your sister's pussy."
He reached around and rubbed my clit in fast circles while he fucked me. I came first, cunt clenching and squirting around his dick, juices running down my thighs. He didn't stop. He flipped me onto my back on the couch, hooked my legs over his shoulders, and drilled into me even deeper. My pussy made wet, obscene noises with every thrust.
"Look at you," he said, staring down at where we connected. "Taking every inch like a filthy little slut."
I reached down and spread my lips so he could watch his cock disappear inside me. "Come in me. Fill me up."
He grunted, slammed in one last time, and unloaded. Thick ropes of cum pumped deep into my cunt, hot and heavy. He kept thrusting through it, pushing his load deeper while I milked him with my walls.
When he finally pulled out, cum leaked out of me and dripped onto the couch. I scooped some with two fingers, brought them to my mouth, and licked them clean while he watched.
"Next time," I said, "I'm flashing you in the kitchen while Mom's cooking dinner."
He smirked, already getting hard again. "Make it quick and dirty."
We spent the rest of the afternoon fucking in every room, me flashing and teasing until he couldn't take it anymore. By the time our parents came home we were back in our own beds, but the secret was out and we both knew it wouldn't stop. Every look across the dinner table turned into another promise of raw, filthy incest the next time we were alone.
