Voyeuristic brother watches sister shower and pleasure herself

In the privacy of his room, our young German protagonist harbors a guilty pleasure - watching his sister shower. On this particular day, he's once again drawn to the allure of her steamy ritual, positioning himself behind the bathroom door for a clandestine view. As the water cascades over her petite frame, he can't help but be captivated by the sight of her, her body glistening under the shower's warm embrace. His forbidden desire intensifies as she begins to explore her own body, her hands roaming over her curves, her fingers finding their way to her most intimate area. He's gripped by the sight, his breath hitching as she brings herself to the brink of ecstasy. But as the intensity of her pleasure reaches its peak, so does the risk of discovery. The thought of getting caught sends a shiver down his spine, adding an extra layer of excitement to his voyeuristic fantasy.