As the rain pours outside, Michelle and her brother huddle together in their shared bedroom, their bodies generating their own warmth. Their conversation turns to taboo topics, their voices hushed, eyes darting to the closed door. Michelle's hand finds her brother's thigh, her fingers tracing circles, inching closer to his growing bulge. He swallows hard, his Adam's apple bobbing, as he watches her, his own hand reaching out to touch her knee, slowly moving up her thigh. Their hearts race as they teeter on the edge of the forbidden, their bodies aching for release.