I was in a school in Newport News, I think... in 6th grade. It was during PE class that I learned I was developing breasts in a most unpleasant way.
A boy, a peer of mine, told me that my shirt was see through and I should be wearing a training bra to cover my saggy boobies. I was mortified! I had no idea that I had boobies AND no idea what a training bra was. I'm not sure what I said to him.
I honestly cannot remember whether I told my Mom about this interaction or not. I think I must have, because I think it was very soon after it that I ended up wearing a training bra... much to my discomfort and embarrassment.
This experience is a blessing, though, I think. Among a few others, it has given me a burning desire to inculcate in my girls a pleasure in the process of puberty and pride in their bodies... not a bad pride, but more like a joy in being female. It also has informed my attention to the changes my girls are experiencing because I want to make sure they are prepared far ahead of changes, rather than having to deal with mean-hearted and stinging comments from others noticing what I miss. I'm sure it'll happen... just hopefully not about boobies and bras!