The house was quiet except for the low hum of the old laptop on the kitchen table. Mark clicked the link again, watching the progress bar crawl. "Free download sex film long story family" had been the exact search that popped up the file, and now the thing was finally opening.
His sister Lisa leaned over his shoulder, her breath warm on his neck. "You really gonna watch that shit with me here?" she asked, voice low and teasing. She was twenty-three, same as him, and had been home from college for two weeks already. Their parents were out of town until Sunday.
"Shut up and sit down," Mark said. He hit play. The video started with a woman who looked a lot like their mom walking into a bedroom where two younger guys waited. The title card flashed the same stupid keywords. Lisa laughed once, short and dirty, then pulled her chair closer.
On screen the woman stripped slow, letting the camera linger on her tits and the curve of her ass. Lisa's hand drifted to Mark's thigh under the table. "This is fucked up," she muttered, but her fingers kept moving, squeezing higher until she cupped his cock through his jeans. It was already hard.
Mark didn't stop her. He unzipped, pulled his dick out, and let her wrap her fingers around it. The video cut to the woman on her knees, sucking both guys in turn, spit dripping down her chin. Lisa stroked him in time with the sloppy sounds coming from the speakers. "You like watching that?" she asked. "Family shit. Makes you twitch every time she calls them her boys."
He grunted and reached under her shirt, finding her bare breast. Her nipple was stiff. He pinched it and she moaned, pumping his cock faster. The video switched angles, showing the woman bent over the bed while one guy fucked her from behind and the other fed her his dick.
Lisa stood, shoved her shorts down, and climbed onto Mark's lap facing the screen. She sank onto him in one wet slide, both of them breathing hard.
They fucked like that for a while, slow and grinding, watching the long scene play out. The woman on screen came loud, shaking, and Lisa echoed her, grinding down harder until her pussy clenched around Mark's cock. He held her hips and thrust up, filling her while the video kept going into another round.
Later they moved to the couch, replaying sections. Lisa sucked him clean, then let him eat her out while the next scene loaded. The "long story" part turned out to be a whole hour of the same family pretending to be strangers who kept ending up naked together. Mark came on Lisa's tits while she fingered herself to the final creampie shot.
When the file ended they stayed tangled, breathing heavy. Lisa grinned up at him. "We should download the sequel." Mark just laughed and pulled her closer, already thinking about the next search.
