I can't manage to get wet.. -.- HELP.?

This happens once you grow more experienced with sex. Not everything turns you on anymore because you've gotten used to it, and it takes bigger, better things to really get the job done now. Let him know atleast that it's not him at all and spice things up a little! Try some new positions, do anything you can and if still nothing then stick to the lube, you never know it might grow on you.