Michelle and her brother huddle in the closet, their hearts pounding. She's in her panties, he's in boxers, both semi-clothed, yet fully exposed. Her fingers trace the outline of his cock through the cotton, feeling it twitch and grow. He mirrors her, rubbing her pussy through her damp underwear. They're on the edge, their breaths ragged, when Michelle suddenly pulls away. "We can't," she whispers, eyes wide. But her brother, driven by primal instinct, grabs her hips and turns her around. He pulls down her panties, revealing her glistening pussy. He enters her from behind, making her gasp. She grabs the closet wall, bracing herself as he fucks her, their bodies slapping together in a rhythm that drowns out the world outside.