The house was silent except for the low hum of the air conditioner and the creak of the old wooden floors under heavy footsteps. Mom and Dad stood in the doorway of the living room, arms crossed, faces set like stone.
"Both of you, strip," Dad said, his voice flat and final. "Now."
Jake, twenty-three and built from years of gym work, froze on the couch. His sister Lena, twenty-one with long legs and full curves, sat beside him, her eyes wide. They had both turned legal years ago, but this was the first time their parents had ever spoken like this.
Mom stepped forward. "We raised you two to share everything. Tonight you're sharing each other. No arguments. Clothes off."
Lena's hands shook as she pulled her tank top over her head. Her full breasts spilled free, nipples already tight from the tension in the room. Jake followed, yanking his shirt off, then shoving his jeans and boxers down in one motion. His cock hung heavy, already half-hard from the forbidden command.
Dad pointed at the rug in the center of the room. "On your knees, Lena. Suck your brother's cock like you mean it."
Lena crawled forward on all fours, her round ass swaying. She wrapped her fingers around Jake's thickening shaft and opened her mouth. The first lick was tentative, but Dad's voice cut through. "Deeper. Take it all."
She obeyed, sliding her lips down until her nose brushed his stomach. Jake groaned, hips twitching as his sister's warm throat squeezed him. Mom watched with a small smile, one hand resting between her own thighs.
"Good girl," Mom murmured. "Now Jake, fuck her face. Show us you can take control."
Jake gripped Lena's hair and thrust, driving his cock into her mouth again and again. Spit ran down her chin and dripped onto her tits. The wet sounds filled the room. Lena gagged but didn't pull back; her eyes watered yet stayed locked on his.
After several minutes Dad snapped his fingers. "Enough. Bend her over the arm of the couch."
Lena stood on shaky legs and leaned forward, presenting her soaked pussy. Jake moved behind her, rubbing the head of his cock along her slick folds before pushing inside in one long stroke. She cried out, the stretch burning in the best way. He gripped her hips and started pounding, skin slapping skin with every thrust.
Mom walked closer, voice low and commanding. "Reach around and rub her clit while you fuck her. Make your sister come on your cock."
Jake's fingers found Lena's swollen nub and circled hard. She moaned louder, pushing back to meet every thrust. The forced act was shifting; heat built fast between them. Lena's walls clenched tight around him, her orgasm hitting sudden and sharp. She shook, juices coating Jake's balls.
Dad nodded approval. "Switch. Lena on top. Ride him."
They moved to the couch. Jake lay back, cock glistening. Lena straddled him and sank down, taking every inch. She braced her hands on his chest and rolled her hips, grinding her clit against him with each movement. Jake reached up and squeezed her bouncing tits, thumbs flicking her nipples.
Mom and Dad stayed close, watching every detail. "Harder," Mom ordered. "Make it rough."
Lena leaned down and kissed Jake hard, tongues sliding together as she bounced faster. The kiss turned messy, teeth clicking. Jake thrust up to meet her, driving deep. Sweat slicked their bodies. Lena came again, crying out into his mouth, her pussy pulsing around him.
Dad's voice cut in once more. "Fill her. Now."
Jake flipped them, pinning Lena on her back. He hooked her legs over his shoulders and slammed into her with short, brutal strokes. The couch creaked. Lena's nails raked his back as she came a third time, screaming his name. Jake followed seconds later, burying himself to the hilt and pumping thick ropes of cum deep inside his sister.
They stayed locked together, breathing hard. Mom and Dad exchanged a satisfied look.
"Clean each other up," Mom said quietly. "With your mouths."
Lena slid down Jake's body and licked their mixed fluids from his softening cock. Jake pulled her hips to his face and buried his tongue in her cum-filled pussy, sucking and swallowing everything that leaked out. The taste of each other mixed with the heavy silence of the room.
When they finally separated, the parents nodded once.
"Next weekend," Dad said, already turning away. "Same time."
Lena and Jake looked at each other, flushed and trembling. The forced command had cracked something open between them that neither wanted to close.
