In their new, echoing home, the siblings find themselves alone, the weight of familial boundaries lifting. The brother, restless and horny, starts to stroke his growing erection, his mind filled with thoughts of his sister's luscious body. She hears his muffled moans and, intrigued, follows the sound to his room. Catching him in the act, she's initially shocked but quickly becomes aroused, her nipples hardening beneath her top. She joins him on the bed, their hands tangling as they explore each other's bodies, their breaths ragged with anticipation. Their new home becomes a playground for their taboo desires, their bodies entwined, their moans echoing through the empty halls.