This is kind of weird. Sometimes when I'm lucid, I am talking to somebody. I say something along the lines of "Holy crap, you're not even real" And they say "What are you talking about?" Then I'm like "Wait! Do a reality check! You're dreaming too!" So basically I believe that if they become concsious of themselves dreaming, we will both be dreaming in the same dream.
A few times though I have said to myself "Wait a minute. You can't be dreaming. This is all in my mind", but not always.

So am I not fully lucid dreaming? Am I not lucid enough to realize 100% of everything that's going on. I certainly feel really lucid. Maybe I'm like 95% lucid.

I don't know if I'm explaining it right, so tell me if you get it or not.