When it's time, my ballbusting slave knows to assume "the position" like the good slave that he is: bend over, spread his legs and present his balls for me to kick! A painful torment for my sadistic pleasure. When he is keeled over and curling on the ground, I have no mercy and continue to squeeze his balls. When he finds it too painful to remain standing, I order him to get on all fours and we do it again!
