A magnetically coupled slider sex toy apparatus. The apparatus includes a shaft having an interior and an elongated screw having first and second ends. The elongated screw is located within the interior of the shaft. The sex toy apparatus also includes a motor for rotating the elongated screw and an inner magnet coupled to the screw. The inner magnet moves longitudinally between the first and second ends of the screw. An outer magnetic ring is positioned over the shaft and is magnetically attracted to the inner magnet. Limits are located on either end of the shaft to send a signal to the elector motor of the position of the magnets. The electric motor is configured to reverse a direction of rotation of the elongated screw upon receipt of a signal from one of the limits which cause the inner magnet and outer magnet ring to move in an opposite direction.
