i haven't actually met another ENXP, but there's one person i have met who comes really close to that. i'd have to say, as far as that goes, yes. if we talk about either ENFPs or ENTPs, the answer is no.
i hunt INXPs for bounty
FUNCTION ORDER FOR THOSE THAT CANNOT UNDERSTAND WHAT ENXP MEANS: Ne > Ni > Fi=Ti > *
Hard to say, my sister tested as ENFJ but I doubt it as she tends to be selfish and a shut in. And in any case siblings are different, but still, if she is I think no, I would probably like her less if we weren't related at this point. However, if we assume she isnt as I do, and then work from theory, I think ENFJs would get a long really well because we both want the other person to be happy and to be coddled. Perfect match as friends. But theory rarely stands up to reality....
-There is nothing either good nor ill but thinking makes it so.