I don't think I have ever dressed without being aroused, especially by certain items, such as high heels, satin dresses, and lipstick. So maybe fetish dressing (which I suppose equals that which arouses us) is sort of a subset of crossdressing. I usually wear wigs when dressing, but they do not arouse me. Nor do pantyhose. It's all very confusing, but it's also harmless. Of course there is nothing wrong with it. We can all be turned on by different things. If it doesn't hurt anyone, just enjoy it.
