When I was around the age of 10-11 I used to sleep with my sister sometimes who was about 6-7. At one point my privates touched her butt. It was a good feeling and I started to do it on purpose. I think she enjoyed it as well as she would push her butt against my privates. This led on to much worse things. It turned into me pulling her knickers off and rubbing my penis up and down her butt. Then a bit later on I would go into her room or my parents room when they were down stairs and I would try to insert my privates into her butt.
Also at one point I tried to get her to do things with me orally by pushing her head towards my privates but she kept pulled away. Sometimes we would play husband and wife and would do sexual things. These things went on for quite a while but eventually stopped and years later have come to haunt me. I felt guilty and sick and depression was killing me, I told my parents and they were very understanding and told me not to do it again and they said it was just experimentation.
After talking to my parents I felt a lot better but recently the pain has come back again and is killing me. Sometimes I question life. The main reason being that this is not normal and isn't common. If anyone found out about this my life would be over. No friends or family. I want the pain to go away. Someone help me. Btw how can I tell if my penis entered the butt because I would put my penis in between the cheeks. I was young and didn't have a clue what I was doing.