When I was three years old, my older brother started asking me to perform oral sexual favors. I did as he asked and then he wanted to reciprocate. I remember how uncomfortable it made me feel. He would ask to see my private parts on occasion as well. It hadn't occurred to me that I could say no until I was about eight years old. I remember him telling me that he would show me his if I would do the same. I said no and then I never had a problem after that.