Direct Stimulation is physical stimulation of the sexual organs, either through intercourse or masturbation.
The external and visible organs, in males and females, are the primary sex organs known as the genitals or genitalia. The internal organs are known as the secondary sex organs and are sometimes referred to as the internal genitalia. In addition to the genitalia there are other organs which can provide a great deal of sexual pleasure. These are the types of direct stimulation: