The house was quiet when Lisa got home from college for the summer. She was twenty, tall and curvy, with the same full tits and round ass her mother had passed down to her. Karen, her mom, was in the kitchen wearing nothing but a thin tank top and panties. Her nipples poked hard through the fabric. Lisa dropped her bag and walked straight up to her.
"Mom, I've been thinking about this all semester," Lisa said, voice low and rough. "I want to fuck you. Right now."
Karen didn't hesitate. She pulled her daughter in and kissed her hard, tongues sliding wet and deep. Her hands went straight to Lisa's ass, squeezing and spreading the cheeks through her shorts. "I've wanted your pussy since you turned eighteen," Karen growled. "Get naked."
Clothes hit the floor fast. Lisa's big tits bounced free, nipples stiff. Karen's shaved cunt was already glistening. They moved to the couch without another word. Karen pushed her daughter down on her back and climbed on top, straddling Lisa's face.
"Eat Mommy's cunt," Karen ordered, grinding her wet slit against Lisa's mouth. Lisa moaned and licked hard, sucking on her mother's swollen clit while Karen reached back and fingered her daughter's dripping hole. Two fingers slid in easy, then three, pumping rough and fast.
Lisa's tongue worked deeper, lapping up every drop of her mother's juice. Karen rode her face harder, tits swinging, ass flexing. "That's it, baby girl. Suck Mommy's clit like a good little slut." She leaned forward and buried her face between Lisa's thighs, returning the favor with long, filthy licks from asshole to clit.
They stayed locked like that, sixty-nine, moaning loud and nasty into each other's cunts. Karen came first, flooding Lisa's mouth with hot cream. Lisa swallowed it down and kept licking until Karen's thighs shook. Then Karen flipped around, spread her daughter's legs wide, and slammed three fingers deep into Lisa's cunt while sucking hard on her clit.
Lisa bucked and screamed when she came, pussy clenching tight around her mother's fingers, juices squirting out over Karen's hand. Karen didn't stop. She kept finger-fucking her through the orgasm, then added her tongue again, licking up every messy drop.
They switched positions fast. Karen got on all fours and Lisa knelt behind her, spreading her mother's ass and burying her tongue in her asshole while fingering her cunt. Karen pushed back, begging for more.

"Deeper, baby. Fuck Mommy's ass with your tongue." Lisa did exactly that, getting it sloppy and wet before sliding two fingers into her mother's tight hole.
Karen reached back and rubbed her own clit, coming again with a string of dirty curses. Lisa pulled her fingers out, licked them clean, then lay back so her mother could straddle her thigh and grind her wet cunt against it. They humped like that, skin slapping, tits pressed together, mouths locked in a messy kiss until both of them came again, shaking and swearing.
Later they moved to the bedroom. Karen strapped on a thick dildo and fucked her daughter from behind, pounding deep while pulling Lisa's hair. Lisa begged for it harder, pushing back to take every inch. When Karen pulled out, she flipped Lisa over and rode her face again, letting her daughter drink down another load of come.
They didn't stop until both were sore and dripping. Karen pulled Lisa into her arms afterward, kissing her slow and deep. "This is just the start, baby. You're home now."
Lisa smiled against her mother's mouth. "Good. Because I want your cunt every single night."