Female dreaming about having male parts.

I am a 24 year old woman and since I was a teenager I've wondered what it'd be like to have male parts. The dreams have been odd. Usually when my husband and I haven't had intimacy for a while. It starts out with me looking down into my underwear and seeing a bulge. When I see it at first I'm ashamed and try to hide it. When it goes away I think really hard and it starts to come back. Now I still have female parts under. It's like the sensitive part expands. And I rub it with my hands and it ends up being a regular erection. I can masturbate with it but I can never have an orgasm in my dream. Anyone have an idea why these dreams happen?

Dreams are about wishes, and you wish to know what it would be like. That simple.

^ Zactly - though I'd call it curosity rather than a wish, but the way lds puts it, it amounts t the same thing. People tend to attach too much importance to weird dreams - in dreams we have no inhibitions and we explore all kinds of things we literally wouldn't dream of in waking life (hah!) - murder, torture, destruction, the end of the world, being attacked by monsters or raped etc... all entirely free from guilt shame or remorse (until we wake up anyway). Unfortunatley in the west most people take dreams too literally and would be very ashamed afterwards. No need - it's just your unconscious exploring and trying things out that you might be afraid to think of when awake.