In the dimly lit dungeon, King Calvin and King Mark, the Ballbusting Kings, begin their Preview sesh. Mark, the sub, is bound and gagged, his stress balls already aching. Calvin, the Dom, teases Mark's vulnerable manhood with a crop, making it twitch and swell. He commands, "Show me your stress, boy." Mark obeys, clenching his muscles, making his balls bulge and redden. Calvin grins, delighted, as he brings out the CBT toys, ready to push Mark's limits in their intense, preview bondage session.