Technically, there are three holes: the vagina, the anus and the urinary opening. However, the urinary opening is barely visible, and the vagina and the anus are pretty easy to tell apart.
Stephanie, the G-spot and the clitoris are not the same thing. The term "G-spot" is often misused to refer to any area of a woman's body that is especially sensitive, but it actually refers to a specific area inside the vagina. You can read more about it here:
the G-spot