Erogenous zone
An erogenous zone is a part of the body that can react especially strongly to pleasurable stimulation through touch, friction, or other sexual contact. The best-known erogenous zones are the genitals, but areas such as the earlobes, neck, nipples, navel, or inner thighs can also be sensitive, depending on the person. Which areas feel especially arousing varies greatly from one individual to another.
Erogenous zones are not equally pronounced in everyone, and preferences can change over time. In sexual or BDSM contexts, it is important to pay attention to reactions and boundaries rather than assuming that a commonly “erogenous” area is pleasant for every person.