In the quiet of the night, a brother and sister, driven by their secret longing, sneak into each other's room. She's already naked, her body illuminated by the soft moonlight streaming through the window. He joins her on the bed, his hands exploring her curves, his mouth finding hers in a hungry kiss. She guides his hand to her pussy, already wet with anticipation. He fingers her, his thumb rubbing circles on her clit, making her whimper. When she can't take it anymore, she straddles him, impaling herself on his hard cock. She rides him slowly at first, then faster, her tits bouncing with each thrust. He grabs her hips, pulling her down as he thrusts up, their bodies slapping together. They come together, their bodies convulsing, their voices mingling in a chorus of ecstasy.