I don’t know if there are friends like me, if not, please don’t scold me. At that time I was only 18 or 19 years old, my sister was four years younger than me. At that time I was already working {no way, rural, not much reading, did not graduate from junior high school to join the work} at that time is in the factory accommodation, about once a week back home. At that time, the rural areas were not like now, when there were no conditions for bathing in winter. Only in summer could I take a bath. My family’s solar water heater was installed on top of a small shed on the south side of the yard, so of course the bath was inside the shed. Since the shed was not used for bathing at the earliest, it was not built with shading in mind. At that time, almost all of our homes were like this. Directly opposite the bath room is a window, usually the bath is blocked with a cloth curtain. I came home from work that day, and because of the distance, it was already dark when I got home. {I was still riding my bicycle and had to walk for an hour} when I got home, my sister was already taking a bath in the bath room. Mom and dad were cooling off on the roof of the bungalow, and I was tired because I had just arrived home, so I sat in the yard to cool off. But I overheard the lights on inside the bathhouse. At that time, my mom and dad were on top of the bungalow, so the bath room could only be my sister. I was probably in my adolescence, so I got close to the window and peeked inside. And the curtain did not pull the extension when a gap was exposed. It was in this gap of a few centimeters that I first saw my sister’s body after development. To be honest I don’t know how other girls develop at the age of 14 or 15, but at that time my sister had developed very well. The breasts are not big, but they are unusually firm, and I can even see the pink nipples. The pubic hair was also so dense that I couldn’t see inside anyway. Since I usually live outside and occasionally come home so inside the house, so when I came home I slept with the family, and that night I slept next to my sister. It was easy to wait for everyone to fall asleep, I quietly put my hand to my sister’s lower body. {At that time there was no feeling for breasts, just some curiosity about female pussy} I touched it. Through the dense forest, I touched a small stream directly. It felt very wet and soft at the time. Guys you ask me again what I feel, really no more. Because it was very nervous. Just touch a moment. My sister turned around and I hurriedly retracted my hand. This is my only time. Although later also want, but never dare to practice.