The Holland Heater
When you take apart the wiring for a space heater and clamp the exposed wires to the females nipples. You then proceed to have sex with her while flipping the switch for the heater randomly causing a jolt of electricity to run through her and arousing her until climax.
This woman claimed I couldn't get her to climax, so i introduced her to The Holland Heater... She still can't walk right. Even her speech is slurred now.