That's just stupid old theory and it's discredited.
That's not true. Herr Freud made mistake with that.
Why would we envy you? It's not like penis is better then vagina. And it owuld be verry veryy bad, and really really wrong if all of us would have penises.
I don't envy guys penises, but they interest me. I dont know if anyone has ever NOT thought about what it would be like to be the opposite sex at one time or another. I was talking about this with a friend the other day, and we both agreed that the first thing we'd do if we were able to be boys for an hour is to masturbate. lol