The first view
I learned to read when I was 4 or 5 years old, from pure curiosity. That means me parents, always trying to answer my questions the best they could and without impatience, could have some relief by putting informative books in my hands.
It must have been extra relieving for them to be able to hand me a book about where babies come from! This was a very educational and serious book, with illustrations so realistic and graphic that you almost wanted to touch them. One thing I still remember very vividly from this book is the pictures of male genitalia. Today I realize this must have been a translated American book, because there was just one illustration showing an intact penis, and it was specially mentioned that "all other pictures shows the penis without a foreskin". The view of these circumcised penises really fascinated me - I liked them far better than the uncircumcised one - and was the main reason to why this book got rather worn-out with many loose pages.
I will never forget this fascination, which I instinctively felt I should keep secret, and I often picked out the book to enjoy it when I was alone at home.
A tight foreskin
As many other boys, I had foreskin that was to tight to retract. This was discovered at a regular examination by the school doctor when I was eight, an examination which I found deeply embarrassing and humiliating. It resulted in a phone call to my parents, and shortly after when I was having a bath my father showed me how I should do daily stretching exercises with my foreskin to have it loosened. Needless to say, this was very embarrassing too!
But these exercises worked. After a couple of years I managed to retract my foreskin, which was the purpose. A quicker benefit, surely not intended, was that I very soon discovered how to masturbate. I would have learned this sooner or later anyway, but this way it happened sooner!
Learning to experience my glans
I remember very well the first time I managed to retract my foreskin. I was very glad that it finally worked, and amazed at the sight of my glans. I had never seen it before, and now it popped out, red and glossy. Most of all it was very sensitive, but nevertheless I enjoyed both the sight of it and the feeling of having it exposed. It was very exciting!
Through the years of puberty and adolescence, I kept on enjoying keeping my glans exposed and did so often. Since the foreskin at that time was quite tight, it was easy to keep it staying behind the flare of the glans, and the constant squeeze it caused just heightened the pleasure.