Lube isn't necessary most of the time if you're not cut although, I've never had to use itShe's never seen a penis before and has no lube, somehow I doubt she is doing it correctly. Also, in the end even the best handjob has no appreciable difference between masturbation, except with no physical feedback from your dick she is unable to get adjust to target the best spots. Sorry, but fapping>handjob
The only time it gets "better" is when you put it in an orifice because that is a sensation you can't emulate with your own far more practiced hand.