This is not intended as a general question on how your CDing started but very few relate to to way mine started, I'm either in the minority or members may not wish to talk about it for whatever reason.
After fifty years I now look back and see it with unashamed acceptance, it's at the core of my being and will never change or go away.
I apologise for repeating myself if some have read this before.
From the age of about 4 I had a regular GF until the start of secondary school at about 10 -11, it was just holding hands and kissing. It's hard to say when testosterone kicked in but it was early, I knew nothing about sex and what masturbation was so when I started getting erections I was totally embarrassed by them, why does something that you pee out of suddenly start poking you in your navel ? At about 8-9 I wasn't drawn to panties or stockings but I was attracted to a very shapely swimsuit with a halter strap and padded bust, I felt I didn't want wear it because of the material or I wanted to be a girl, it suggested it was my GF's body. I know I don't have to describe the feeling when I managed to squeeze into it ! With in a few minutes I experienced an involuntary orgasm, which really scared me because I didn't know what had happened ! I immediately stripped off and tried to clean up the strange mess.
That's how it started, I knew I didn't want to be a girl but it was locked in that I wanted to share it with a girl. After that I just wanted to wear anything and enjoy how the clothes felt but at the end it was always sexual.
I've never had to dress to achieve sex, I suppose you could relate dressing with it as taking Viagra, it's a different level !
I've hit my sixties now but my testosterone hasn't realised it yet, so when the feelings will finally go away is hard to say !
This is not intended to be crude or boastful, it's saying where and how my Cding started and what makes me tick ! I haven't read many accounts that experienced it in this way.