Which slave can take the most abuse by Goddess Brooke

Superior Goddess Brooke and Princess Chanel are hanging out and relaxing while using their naked slaves as foot rests. The subject of conversation turns to who has the most devoted slave. Princess Chanel is 100% convinced that her slave is the most devoted because he will do anything for her and can really take a beating. Superior Goddess Brooke thinks her slave is the most devoted and that he can take even more abuse than Princess Chanel's slave. Superior Goddess Brooke suggests they find out which slave can take the most abuse and last the longest by kicking them in the balls and seeing which one falls to his knees first.