For me it was a Penthouse Forum or some other such collection of stories that I pilfered from my friends dad's collection that sent me into my first 'O'. And the first time it started happening it felt so weird that I stopped immediately and didn't cum, then the next night I decided to let it go. I think I was 12.

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Put me on wheels and I'll turn tricks.

Clever? Nah, I ran out of that years ago. But if you find this, let me know, k?
"The road goes ever on..." ~ Tolkien

In memory of my friend skip...
Go then, there are other worlds than these