Lady Dark Angel and Mistress Athena are testing the endurance of their ballbusting slaves. Who can take the heaviest punishment for their perfect ballbusting? Our Mistresses visit their dungeon and pick two or their four captured slaves for some boot fetish and heavy ballbusting. The two "lucky guys" are dragged out of their cage, so that the fun can begin. It all starts with a little boot worship and general torment. Quickly, however, the Mistresses turns into ballbusting and not the soft type...