My sister, a sultry Quarto, surprised me by using my computer. I watched her strip, her curves on display. It was thrilling and wrong, but I couldn't help myself.

Recently, I've been indulging in some solo pleasure on my computer, and it seems my younger sister has taken notice. She's been quite curious about what I'm up to when I'm in my room. The other day, as she was cleaning the house, she stumbled upon my computer and decided to take a peek. To her surprise, she found a collection of explicit content that I had been enjoying. As she sat there, her eyes widened with shock and excitement at the sight of my favorite pornographic material. She couldn't resist the urge to explore further, and she began to touch and play with the images on the screen. This act of voyeurism ignited a flame of desire within her, and she found herself unable to tear her eyes away from the explicit content.