The narrow closet space is filled with the scent of damp cotton and the hushed breaths of the siblings huddled together. The girl, Michelle, her eyes wide with fear and desire, slowly reaches out to touch her brother's cock, now tenting his pants. He stiffens, not from fear, but from the unexpected contact. She feels it grow harder in her hand, and a surge of lust courses through her. She can't stop now, not when she's this close to feeling him inside her. She pushes her hand under his waistband, wrapping her fingers around his shaft. He groans softly, his hips bucking forward. They're both lost in their taboo lust, their minds a whirlwind of guilt and pleasure.