The house was quiet except for the low hum of the AC when Lisa walked into the living room wearing nothing but a thin silk robe that clung to her heavy tits and round ass. Her son Mark, twenty-two and already hard in his shorts, sat on the couch watching her. Her daughter Emily, twenty and freshly showered, stood in the doorway in just panties, nipples stiff from the cool air.
Lisa let the robe fall open. "You two have been staring at me for weeks. Tonight we stop pretending."
Mark stood first, crossing the room and grabbing his mother's waist. He pulled her close, pressing his cock against her stomach through his shorts. "Fuck, Mom, I've wanted this so bad." His hands slid up to squeeze her tits, thumbs rubbing her hard nipples. Lisa moaned and kissed him hard, tongue pushing into his mouth while Emily watched, hand already inside her panties rubbing her wet pussy.
Emily stepped closer. "Don't leave me out." She pressed against her mother's back, reaching around to cup Lisa's tits with Mark's hands. Lisa turned her head and kissed her daughter, soft lips parting as Emily's fingers found her mother's dripping cunt.
Mark dropped his shorts. His thick cock sprang free. Lisa wrapped her fingers around it and stroked slowly. "Get on the couch, baby," she told Emily. Emily lay back, legs spread. Lisa knelt between them and licked her daughter's smooth pussy in long, wet strokes. Emily gasped and grabbed her mother's hair. "Mom, that feels so good."
Mark moved behind Lisa, spreading her ass cheeks. He rubbed the head of his cock along her soaked slit before pushing inside in one deep thrust. Lisa groaned into Emily's cunt, tongue flicking faster as Mark fucked her from behind, hips slapping against her ass. "Goddamn, Mom, you're so tight," he grunted, pounding harder.
Emily pulled her mother up for another kiss, tasting herself on Lisa's lips. "I want Mark's cock too." They switched. Emily got on all fours and Mark slid into his sister while Lisa sat in front of her, legs open. Emily buried her face between her mother's thighs, licking and sucking while Mark drove into her from behind.
The three of them moved together on the couch, bodies slick with sweat. Lisa rode Mark's face while Emily straddled his cock, bouncing on it. Lisa leaned forward to suck Emily's tits, biting the nipples gently. "That's it, ride your brother's dick," she whispered.
Mark flipped them. He laid Emily on her back and fucked her deep while Lisa sat on her daughter's face. Emily licked her mother's asshole and pussy at the same time, moaning into the wet flesh. Mark reached down and rubbed Emily's clit until she came hard, legs shaking.
They switched again. Lisa on her back now, legs over Mark's shoulders as he fucked her slow and deep. Emily straddled her mother's face, grinding her pussy down while Mark leaned in to kiss his sister. Lisa came first, crying out around Emily's cunt, body arching.
Mark pulled out and stroked his cock. "Both of you, on your knees." Lisa and Emily knelt side by side, tongues out.
He came across their faces and open mouths, thick ropes of cum landing on lips and tongues. They kissed each other, swapping his load before swallowing.
Later, tangled on the couch, Lisa stroked both her children's bodies. "This is just the start," she said. Mark was already getting hard again against her thigh. Emily's fingers slipped between her mother's legs. The night stretched ahead of them, full of every filthy thing they'd been holding back.
