King Calvin, a master of gay BDSM, takes charge in this intense dungeon session. He commands King Mark, his submissive, to worship his feet, a prequel to the dominant ballbusting to come. Mark, in chastity, eagerly licks Calvin's soles, anticipating the CBT he craves. Calvin, hard as stone, orders Mark to his knees, presenting his caged balls. With a sadistic smile, Calvin grinds his heel into Mark's vulnerable orbs, causing the sub to groan in pain and pleasure. The session escalates, Calvin's dominance unyielding, Mark's endurance impressive.