As I walked into the room, I stumbled upon my sis and Reyna Delacruz, the hottest chick in town, getting it on. My first thought was to cool things down, but then I realized that this was the kind of shit that would get my blood pumping. I couldn't help but watch as they continued their steamy encounter, their bodies entwined in a passionate embrace. The sight of my sis, a vision of pure beauty, riding Reyna's throbbing member was enough to make my pants bulge with anticipation. I knew I couldn't join in, but I didn't mind watching. After all, this was the kind of fantasy that every young man dreams of - a chance to see his sister in the throes of passionate lovemaking. As I watched, I couldn't help but imagine what it would feel like to be buried deep inside my sis, to taste her sweet pussy and to feel her moans of pleasure echoing through the room. But for now, I had to content myself with just watching, enjoying the sight of my sis and Reyna enjoying each other's company.