My first experience with anything sexual occurred when I was 8. My parents were going out overnight for their anniversary and they had my uncle stay overnight to watch me. He was 14 at the time and my mom's youngest brother.
Anyway, it got to be late and he said it was time for my bath. I didn't think anything of it, so got undressed and got in the tub. I hadn't been in there long when he came in. He told me I had to hurry and wash because he let me stay up too late. He then proceeded to wash me, and I just let him.
He took longer then he really needed to, washing between my legs, but it felt good. I asked him to it again and he looked at me funny, but did. I started feeling really funny but in a good way. He stopped and I immediately said wash it more! He did and I begin to squirm against his hand. He lost the washcloth and I felt his fingers rubbing me. Soon I experienced my first orgasm. It was small I admit, but it was my first. He looked flushed too.
He told me I could dry, get dressed and watch TV. He got up to leave and I noticed a wet spot in the front of his pants. We never did anything like that again and in fact when I was 19 he apologized to me for it. I told him not to be sorry, that I had really enjoyed it and it got me started on many years of pleasuring myself. I also said that I wouldn't recommend he did anything like that again.
He turned red and said that that was the only time it had happened. He said he felt guilty for years after and was relieved to hear that I enjoyed the experience. I got him to admit that he had cum in his pants and we left both smiling.