In the dimly lit attic, a sister and brother find solace in their forbidden desires. She tentatively touches herself, her fingers sliding over her clit, while he watches, his cock hard in his hand. Their breaths sync as they pleasure themselves, their eyes locked. Her fingers dip into her wetness, drawing out her juices, while he strokes his length, imagining her tight pussy wrapping around him. Their moans fill the attic, a symphony of their shared secret, until a loud thunderclap outside startles them, bringing them back to reality.