Bound and at her mercy, the submissive is made to endure the exquisite torture of his mistress's foot. She presses it firmly against his ass, rubbing it along his crack, making him squirm. His cock, hard and leaking, is denied release, his balls aching from the intense pressure. The mistress, enjoying the power, orders him to worship her foot, to lick and kiss it, to show his devotion. She switches, now using her heel to grind against his cock, making him beg for more, yet never allowing him to find solace in orgasm.