A Fetish?

I read an article in a magazine that said something is not a fetish unless you are unable to perform sexually without the item; otherwise, it's merely a preference. I love wearing nylon panties, and as soon as I slip them on, I immediately get excited. However, since they aren't necessary for me to get excited, panties are not a fetish; they are merely a preference that I enjoy immensely. I'd like to read other's opinions on this subject.

— Leo, 58