Human penis
Females have a clitoris, which is like a penis, although the outside part of the clitoris is much smaller than the penis. Most of the clitoris is inside the body. Part of the shaft of the clitoris is covered by a thin layer of skin called the clitoral hood, which is similar to the foreskin of the penis, discussed below. Both the penis and the clitoris are erectile organs, meaning they can become larger and harder when touched, rubbed, or stimulated in other ways.