Abstract: A sexual stimulator for providing sexual stimulation to a user comprises a housing (1), a moving part (7) housed within the housing so as to cause motion of at least part of the housing (1) so as, in use, to provide a user with sexual stimulation, and a control circuit (8) for the moving part in which the control circuit (8) is arranged so as to control the strength of the motion caused by the moving part (7), the control circuit being arranged so that, at a first moment of time, the control circuit (8) causes the moving part (7) to commence the motion at a first strength, and then causes the strength of the motion to increase over a first period of time in which the first strength is insufficient to wake a user. Thus, a user can be gently roused from sleep such that sexual stimulation can take place before the moment of waking, with a user waking up sexually stimulated.