I remember back when I was in 5th grade my sister was in 8th grade when we were alone we would get naked and she would always tell me to lick and kiss her pussy. But at the time I had no idea what I was doing I just liked my sister to be happy. She would also touch my penis until it got hard then she would put it in her pussy and move it around, I didn't really understand what was going on but she always loved it. We would also touch each others private parts, now that I think about it I wonder why she made me do that. I asked her about it a couple weeks ago and she ignored me saying that never happened. I know it did.