I used to play chess frequently as a child so I’ve got the idea that how awesome it would be to play bdsm chess duels against my girls. Especially that I know they are much worse players than me so I can defeat them easily. So I made up the rules.

I need only a cattle prod in my hands and the girls beat the shit out of each other lol. Finally I did not have to use it to motivate them because they were so afraid of it that they rather chose to hit their duel partner as hard as they could, just