'Electric Eel' digital condom promises to make sparks fly in the bedroom.
— The Independent
I know that it's possible to make sparks fly by inducing arcs between a conductive thing of some sort and a ground, but I don't understand the way 'to make sparks fly' using a condom.
Can anyone explain what precisely it means and whether there are expressions that fit better that situation?
References cited by The Free Dictionary say that 'if sparks fly between two or more people, they argue angrily', thus I don't understand how this applies to the situation evoked by The Independent.