I found some pantyhose in a bathroom when I was 4 or 5... I didn't even know what they were called but for some reason I tried them on and I was hooked. That went on for years until I was old enough to be a latch key kid. From there I tried, panties, bras, skirts, blouses, dresses, and heels. I can't explain why I did the the first time or any time after that except that it just felt good. It took me years to unpack all of this and accept this about myself. I thought maybe I wanted to become a girl, but as life progressed I realized I liked being a guy too.
Once the dust settled I realized I wanted both... I wanted to be able to feel masculine and feminine. For me its about balance.. I need to express both sides in order to feel complete.