The present invention concerns apparatus (1) for applying targeted stimulation at or adjacent the base of the area of the glans (5) of the penis (2), wherein the apparatus comprises a contact portion having a first contact surface (3) conforming substantially to the longitudinal profile of the penis, the contact portion further having a second contact surface (4), raised, in use, inwardly of the first contact surface towards the penis, to project in use into positive engagement with the area at or adjacent the base of the glans of the penis.