Hidden from prying eyes, a brother and sister explore their burgeoning desires. She timidly touches herself, him unaware, until he catches her reflection in the mirror. They freeze, then whisper, their bodies aching with newfound longing. They dance around each other, backs pressed, breaths heavy, before she guides his hand to her warmth, and he discovers her slickness. They're amateur explorers, learning each other's bodies, their moans echoing through the empty house.