Abstract: An apparatus for engaging the glans of a user to provide sexual stimulation includes an electric motor situated within a box-like, sound insulated container, an elongated arm extending through a container aperture and having a first end coupled to a drive shaft turned by the motor, and a glans engaging attachment fixed to a second end of the elongated arm. A drive wheel having a plurality of apertures therethrough is attached to the drive shaft, and an intermediate arm is pivotally attached at one end to the elongated arm and at the other end to the drive wheel. This has the effect of translating the rotational motion of the drive shaft into reciprocating and substantially linear motion of the elongated arm along its longitudinal axis. In one preferred form, the glans engaging attachment comprises a dildo member having a projecting shaft held securely adjacent the second end of the elongated arm.