Any part of the body with heightened sensitivity that can cause or contribute to sexual arousal. The penis and the vagina are the two most obvious examples of erogenous zones, but the term can also apply to specific parts of the genitals that are more sensitive than others (the head of the penis, for example, or the clitoris).

The term is fairly subjective, and the nipples, ears, feet, and mouth can be considered erogenous zones for some people. Many personal lubricants have stimulating ingredients that can cause sensations or enhance nerve receptivity in erogenous zones (see “”stimulating lubes”” for more information).