When I was 9, I was helping my father sand a door. He was using a vibrating sander, and I was helping by hold one end of the door that was lying on saw horses. While holding the door, I was pressing my penis against the edge of the door, and the vibrations of the sander caused me to become hard as a rock. The next thing I new, I was starting to have an orgasm. Having never experienced this before, it was a little scary, as well as a pleasurable new feeling. He finished sanding, and my fun was over. Later that day, after my father went to work, I went back to the shop and got the sander. This time, I put it directly on my crotch, outside of my pants, and turned it on. Instantly my penis got erect, and the feelings started again. This time, I got to finish the job. I had probably the most intense orgasm of my young life, and it scared the hell out of me.
I continued to use the sander whenever I had the chance. Being new at masturbation, I was not yet ejaculating, so I could orgasm in my pants with no mess.
I later on decided that I would share my new found experience with my older brother who was 12 at the time. He informed me that I didn't have to use a sander, but could do it with my hand. He showed me several ways that he masturbated, and I now had a new hobby. My brother and I masturbated together quite frequently, and sometimes we masturbated each other, but that's a story for another day.
Over the years, I have masturbated in every conceivable way, and in many different places. My wife an I masturbate together quite often, but if I want a hard, intense, quick orgasm, I head off to my shop and break out the sander.
I am 54 years old now, and still masturbate almost every day. It is one of life's little pleasures that can be enjoyed almost anytime and anywhere.
This site is one of the greatest places I have found on the web. It's nice to know that I am not alone in my fascination with masturbation.
I masturbate now as I write.