you were lost? do you mean he didnt include you in what was going on?
if you are feeling at all lost then you really should have talked about it more. my first time was with someone who had experience, but that just made it better coz he knew what he was doing, and that made it a lot less uncomfortable. no fumbling or confusion, lol. i didnt feel at all lost even though i hadnt done it before then.
if it was as uncomfortable as you make it out to be then my guess is that you just werent ready. all i can suggest is discuss things with the guy, and that practice makes perfect, as they say.