A leather-clad dominatrix, her body a symphony of tantalizing curves, oversees her bound lesbian sub's transformation into a human gag. She slips her high heel into the sub's mouth, pushing it deep, watching with sadistic pleasure as the sub gags and struggles. The mistress, her arousal evident, commands her to switch to strapon worship, sliding the thick, veined dildo along her sub's eager mouth and into her throat, before ordering her to service her pussy, rubbing her bound hands against her own clit as she fucks her sub's face.