Is it normal to be sexually aroused and not be producing natural lubrication or "getting wet" in the genital area? is there a way to fix this?

No: When women become aroused, the body normally produce secretions in the vagina to help with lubrication and procreation. If this is a one-time occurrence, be assured. If this happens repeatedly, you should see your doctor. A visit and exam could help determine why this is occurring. Things to consider would be use of condoms, birth control, or even infection or possible emotional causes.

Natural Lubrication : Yes. It is both normal and common. Many couples find that they have to supplement the lubrication with lube that they purchase. Many couples find the variety of lubrications available to be a fun part of their sexual play.