My cd'ing started somewhere around age 5.I was aroused by my sister's dress and on impulse put it on.Was caught wearing it too.
Later in 1st grade,i was transfixed by my teacher and the dress she was wearing.I was turned on all day looking at her,and get this.Sooo stupid what i did.After school hours,i snuck back into the school thinking teachers changed back into their own clothes and went home,believing that dress was hanging in the closet so i tiptoed down the hall to the classroom,heard a noise and darted out the door.
That was it until grade 6 when cd'ing began in earnest.
What Reine mentioned in her post(#6) is almost exactly how it happened with me. I think this is simply the way we are hardwired.
