I'm the only man in my family. My sisters, who came back to their parents' house for the first time in a while, are strangely sexy and show me their panties while I'm not at all Kokoro. Although we're not supposed to touch each other, the pheromones of my four sisters hit my dick, which is easy to get hard during puberty. My sisters, who are staring at my hard dick with passionate eyes, must be feeling aroused. I've done it secretly so that my family won't find out.