The rain hammered the windshield as we pulled off the highway into the empty rest stop. My mom killed the engine and turned to me with that look she got when she was done pretending.
"Backseat. Now."
I didn't argue. We climbed over the seats, clothes already half off. She shoved me down on the leather and straddled my lap, her skirt hiked up around her waist. No panties. She grabbed my cock, already hard, and rubbed the head against her wet slit.
"Fuck, you're dripping," I said.
She sank down in one motion, taking every inch. Her pussy was tight and hot, gripping me as she started riding. The car rocked with every bounce. Her tits spilled out of her top and I grabbed them, squeezing hard while she ground her clit against me.
"Harder, son. Fuck your mom like you mean it."
I thrust up to meet her, slapping her ass with each stroke. The windows fogged fast. She leaned forward, moaning loud, her breath hot on my neck. I reached between us and rubbed her clit while she fucked me.
She came first, pussy clenching and soaking my cock. I kept pounding through it until I flipped her onto her back across the seat. Legs over my shoulders, I drove in deep, balls slapping against her ass. The car smelled like sex and rain.
"Don't stop," she begged. "Fill me up."
I slammed into her until I exploded, pumping cum deep inside. She milked every drop, holding me there while we caught our breath. We stayed tangled like that, my cock still twitching inside her, listening to the rain.
She smiled, lazy and satisfied. "Round two when we get home?"
