1. A lead assembly for stimulating tissue comprising: a first lead body comprising a first slot arranged in a first orientation; a second lead body comprising a second slot corresponding to the first slot and having a second orientation, the first lead body slid ably coupled to the second lead body; a moveable contact disposed in the first slot and the corresponding second slot; an energy source connected to the contact to provide energy to stimulate the tissue; and an actuator in operable communication with at least one of the first lead body and the second lead body to cause sliding relative movement between the lead bodies, which results in movement of the moveable contact.