In the dimly lit living room, the mother's eyes linger on her son's crotch, his bulge evident. She licks her lips, her pussy aching. She straddles him, grinding on his lap, feeling his hardness. He grabs her ass, pulling her closer, their breaths ragged. She unzips his pants, freeing his cock, and guides it inside her. They fuck furiously, their taboo passion consuming them, the risk of discovery only heightening their pleasure. She rides him, her tits bouncing, until they both climax, their bodies slick with sweat and sin.