I remember my first orgasm was some time in middle school, probably about 11 or 12 years old. Before this time, I knew it felt pretty good to feel myself but never thought much about it.
One day while taking a bath, I decided to rinse my privates by laying down and letting the water from the faucet fall on me. I guess it felt pretty good because the next time I took a bath, I had every intention of trying that again. So I turned on the faucet just to a steady but light stream of warm water. I laid down in the tub, propped up my legs and positioned myself under the stream of water to hit my clit (had no idea what that was at the time, just knew it felt nice) and I lay there letting the sensations fill me. While I lay there, I knew something was going to happen because there was such an intense feeling building inside of me that I knew couldn't continue forever. There had to be an end to it and I wanted to find out what would happen. I just waited and waited and then the sensation was so intense, I was a little freaked out but BAM, I came and came. My clit was so sensitive, I had to move quickly out of the stream of water. I definitely liked it but had no idea what had just happened.
Just then my sister (about 18 or 19 at the time) walked in to the bathroom to brush her teeth. The curtain was drawn so she didn't know anything. She asked me how I was and I said, 'I just had a really big chill that freaked me out.' I still wonder today if she wondered what I was really talking about. Anyway, that very night, I lay in bed thinking about how I could do that again. I started tapping on my clit and after a very long time, I came again! I continued that tapping and water stream for awhile until I figured out I could just wiggle my finger on my clit to get faster results. Ah, what fun I've had since then learning new ways too enjoy my body!