Which Ball Hurts More: Extreme Ballbusting

This stupid Slave is always begging me for more. He can't get enough of me, punishing his huge balls every day. This time, we decided to play his favorite game? Which Ball Hurts More? It's a fun game, where I separate his balls and beat the fuck out of them, individually. And when I am done, I ask him: Which Ball Hurts more, Dumb ass?