What is wrong with straight sex why introduce electricity create your own sparks with jolly good f*cking.
Your **** would rather have mains electric power 240 volts and your balls will light up.
If you really want to get into shock, at least do it safely. Using a car battery is NOT safe. The amperage is too high.<br />
If you want to flirt with electricity, get yourself a TENS unit and try that on your **** and nipples.<br />
If you want to get a real charge, then get an Electro-Muscular Stimulation (EMS) unit and use that. You can more than sufficiently shock someone with an EMS to achieve your desired ends unless you wish to do real damage or kill someone.