The rain hammered the windshield like it wanted in. Jake pulled the old sedan onto the shoulder, wipers slapping uselessly. At twenty-two he was old enough to drive but the storm had turned the highway into a river. His mother, Linda, sat in the passenger seat, soaked blouse clinging to her big tits, nipples poking hard through the thin fabric.
"Fuck, we're not going anywhere," she muttered, voice low and rough. She was forty-five, still thick in the hips and ass, the kind of body that had always made Jake's cock twitch when he caught her changing.
He killed the engine. The car went dark except for the occasional flash of lightning. Water drummed on the roof. Linda shifted, skirt riding up her thighs. No panties. She never wore them on long drives. Jake smelled her, that warm, musky scent of a woman who'd been sitting wet for hours.
"Jake," she said, turning toward him. "You keep staring at my legs like you want to bury your face between them."
He didn't deny it. His cock was already straining against his jeans. "Been thinking about it since we left the motel this morning."
Linda laughed, short and dirty. She reached over and grabbed his bulge, squeezing hard. "Then stop thinking." She unzipped him, pulled his thick cock out, and stroked it once, twice, thumb smearing the precum over the head. "Jesus, you're hard as fuck."
Jake groaned and shoved his seat back. Linda climbed over the console, skirt hiked to her waist, and straddled him. Her pussy was shaved smooth and already dripping. She rubbed her wet slit along his shaft, coating him in her juices.
"Put it in," she ordered.
He grabbed her hips and thrust up. Her cunt swallowed him in one slick push, tight and hot. Linda moaned loud, head thrown back, tits bouncing as she started riding him.

The car rocked with every slam of her ass against his thighs.
"Fuck, Mom, your pussy's so wet," Jake growled, hands full of her ass, spreading her cheeks so he could watch his cock disappear inside her.
"Been wet all day thinking about this," she panted. "Thinking about my son stretching my cunt in the car like a filthy whore." She leaned down, tongue in his mouth, kissing him hard while her hips rolled in tight circles, grinding her clit against his pubic bone.
Lightning lit the interior. Jake yanked her blouse open, buttons popping, and sucked a nipple into his mouth, biting just enough to make her yelp and clench around him. Linda rode faster, the wet slap of skin on skin filling the car.
"Harder," she demanded. "Fuck your mother harder."
He planted his feet and drove up into her, pounding her pussy with short, brutal strokes. Linda's moans turned into sharp cries. Her juices ran down his balls, soaking the seat. She reached between them and rubbed her clit fast, coming with a guttural "Fuck yes, fill me up."
Jake didn't stop. He flipped them, pinning her on the passenger seat, one leg hooked over his shoulder. He fucked her deep, balls slapping her ass, the car windows fogging completely. Linda clawed his back, begging for more, telling him exactly how she wanted her son's cock wrecking her.
"Want your cum," she gasped. "Shoot it in Mommy's cunt. Breed me right here."
He slammed in one last time and unloaded, thick ropes of cum pumping deep inside her. Linda came again, pussy milking him, body shaking. They stayed locked together, breathing hard, rain still pounding the roof.
After a minute she smiled, lazy and satisfied, and squeezed his softening cock with her inner muscles. "Storm's not letting up. Guess we're stuck here a while."
Jake was already getting hard again inside her. "Good. I want that ass next."
Linda licked her lips. "Then flip me over and take it, baby. The night's young."