uniden980, what color is your hair? If your hair is really dark, then that is probably contributing to why the hair on your legs look so "thick." If you're fine with optical illusion as a solution, then I suggest you just dye your leg hair to a lighter color (still the same color as your natural hair, but a lighter shade). This way, they won't appear as "thick."
The natural way of going about this is lemon juice, but since I don't know what your natural hair color is, I really can't say. Lemon juice is a natural bleach.