Several years ago I worked with a lovely girl who became my girlfriend. Her only physical flaw was crooked teeth. As I was getting to know her, she started to wear braces on her teeth. At first she only had a hardly noticeable removable brace on her upper teeth but she later had full metal bands on her lower teeth and a more noticeable upper removable brace. It was unusual at that time for an adult to wear braces and I admired her for doing so.
By the time she became my girlfriend, she only had the bottom brace which I could hardly feel when we kissed.
I think I now like braces on women because of this girlfriend, but I never told her that I actually liked her braces.