How old were you, when you (KH) heard the first time from male chastity and cockcages and when did you locked up a penis the first time?
When I was in university and in the early days of the internet (circa 1995/96) there were some people posting stories on the web (Akasha's web was one such site). Then pics came along like the one below in 1999. What you can find today is infinitely better but there was something about the effort of finding a pic or a story back in the day that made it so rewarding.
I remember Akasha's site well -- used to print her stories and masturbate to them when I'd be in a hotel away on business.
12 years old... I was looking through ways to stop me from masturbating, and came across the chastity belt. Then after more research I found out a chastity tube will fit me more, and bought a ripped off holy trainer from wish.