John slammed the door behind him and grabbed his sister by the hips the second she turned around in the kitchen. "I've been thinking about your cunt all day," he growled, yanking her shorts down. Lisa was twenty-four, same as him, and she didn't fight it. She never did anymore. Her pussy was already wet when his fingers shoved between her legs.
"Fuck, John, just do it," she hissed, bending over the counter. He dropped his pants and drove his cock straight into her. No teasing. He pounded her hard from behind, balls slapping against her ass with every thrust. Lisa moaned loud and dirty, pushing back to take every inch. "That's it, fuck your sister's pussy like you own it."
He grabbed her hair and pulled, making her arch. Her tits bounced under her tank top until he ripped it up and squeezed them hard. Her nipples were stiff, and he pinched them while he kept slamming into her wet hole. Lisa reached down and rubbed her clit fast, her juices running down his shaft. "Deeper, you bastard. Fill me up."
They moved to the couch without pulling out. She climbed on top, sinking down on his cock and riding him rough. Her ass cheeks clapped against his thighs as she bounced. John smacked her ass red and told her exactly what he thought of her tight little cunt. "This is the best pussy I've ever had. My own sister's slut hole." She came hard on him, clenching and shaking, but he didn't stop. He flipped her onto her back and fucked her missionary, legs spread wide, watching his dick disappear into her again and again.
Lisa begged for his load.
"Cum in me, John. Breed your sister's cunt." He grunted and buried himself balls-deep, pumping thick ropes of cum straight into her. They stayed locked together, panting, his cock still twitching inside her flooded pussy.
Later that night they went at it again in her bed. She sucked him clean first, taking his cock down her throat until spit ran down her chin. Then he ate her out, tongue buried in her creampied slit, tasting his own cum mixed with her juices. She came on his face before he flipped her over and took her ass for the first time, working his cock into her tight hole while she fingered herself and begged for more.
By morning they were sore and sticky, but neither one wanted to stop. They both knew this was their secret now, raw and filthy, and it was only getting started.
