The plane went down hard but the island was soft sand and thick jungle. Me, my sister Lisa, our mom and dad all made it out alive. We were the only ones. Twenty-four hours later the heat had us stripping off our clothes just to breathe. Lisa's tits were full and heavy, nipples dark from the sun. Dad's cock hung thick between his legs even soft. Mom kept catching me staring at her shaved pussy lips.
By the second night nobody pretended anymore. Lisa crawled over to me on the beach while the waves slapped the shore. "Fuck me, big brother," she said, grabbing my dick and stroking it hard. "I've wanted this since we were kids." She spit on the head and shoved it in her mouth, sucking loud and sloppy. I grabbed her hair and fucked her throat until she gagged.
Mom watched from a few feet away, fingers buried in her own cunt. Dad moved behind her, shoved his cock into her ass without warning, and started pounding. "Watch your son fuck his sister," he growled. Mom moaned louder, juices running down her thighs.
Lisa pulled off my cock and climbed on top. She sank down on it in one wet slide, pussy gripping tight. "Goddamn, your dick feels so good," she grunted, riding fast and hard. Her ass slapped against my thighs. I reached up and squeezed her tits, pinching the nipples until she yelped. "Harder, fuck me harder."
Dad pulled out of Mom's ass and walked over. "Open your mouth, Lisa." She did, and he fed her his cock still slick from Mom's asshole. Lisa sucked him while bouncing on me. Mom came over and sat on my face, grinding her dripping pussy on my tongue. I licked her clit and shoved two fingers up her cunt while she rode my mouth.
We switched. Dad laid Lisa on her back and drove his cock into her pussy. I got behind Mom and slammed into her from behind, watching her heavy tits swing. "That's it, fuck your mother," she panted. "Fill me up." I slapped her ass red and pounded deeper. Lisa was screaming as Dad stretched her, her legs locked around his waist.
Mom came first, pussy clenching around my cock. I pulled out and sprayed thick ropes across her ass and lower back. Dad grunted and unloaded deep in Lisa's cunt. Cum leaked out around his shaft as he kept thrusting through it.
We didn't stop. The whole night was a blur of bodies. Lisa sucked my cock clean while Mom licked Dad's cum from her own daughter's pussy. Dad fucked Lisa's ass while she ate Mom out. I took Mom's pussy again, then slid into Lisa right after, mixing everyone's cum inside her.
By morning we were all sticky and sore, lying in a pile on the sand. Lisa reached over and stroked my half-hard cock again.
"Round two, brother?" Mom smiled and spread her legs. Dad was already hard again. The sun was barely up and none of us wanted to leave the island. We had everything we needed right here: raw family fucking with no rules left.
