In a steamy, forbidden interlude, siblings Mia and Lucas each retreat to their rooms for private pleasures. Mia, sprawled on her bed, slides her fingers into her wet panties, rubbing her clit furiously. Meanwhile, Lucas, in his room, strokes his hard cock, imagining his naughty sister. Caught up in their fantasies, they don't hear each other's moans. Suddenly, Lucas bursts into Mia's room, catching her mid-orgasm. Shock turns to lust as they realize they've both been thinking of each other.