I do it because of an indescribable urge. I have no desire to transition to being a woman, or living full time en femme. I do have a desire to wear female clothes, especially pantyhose, and almost to the same extent heels and skirts/dresses.
I feel good wearing female clothes, I am happy doing it, my wife approves and encourages, I'm hurting no one, and it satisfies the indescribable urge.
Some psychologist might be able to answer why I have this urge. I don't really care why anymore. It isn't going away, so the why I have it doesn't matter. I've learned to accept that it is part of me. That's more important. I don't know why two identifcal cells differentiated into one being a mouth and the other an anus on my body. I am not less complete for not having this knowledge. It doesn't matter. The fact is I have these two orifices. Same for crossdressing. I don't know how I got here. I know that I am here, and there's no undoing it. That's all I need to know.