For me, its a definite need to be fulfilled, and I know it is being fulfilled when I have fun, excitement, companionship of others who feel as I do, and a lof of other things.
Part of the "guilt" you feel is actually the good feeling of fulfillment, since it comes in a way that you and I and most other "boys" were taught was wrong. "Why do I feel so great when I do something bad?" I posted in my own thread a few days ago that recently I lost the feeling I was a "guy in a dress" when I put on my female clothing, and that it was a revelation that ALL the clothing in my closet is for me, and is appropriate for me to wear as I please.

As long as you don't upset the fashion police too badly, and are found guilty of bad taste, the little bit of guilty conscience is part of the fun. I feel so great this must be bad!!! Stuff and nonsense!! Humph!!