A merciless mistress commands her lesbian slaves into a sixty-nine, their bodies entwined in a web of ropes and devices. She flogs their backs and asses, leaving red welts as they fight to please each other. The slaves' tongues dance, one licking the other's clit while their own pussy is devoured. Gagged, they can only moan and whimper, their bodies writhing in a mix of pain and pleasure. The mistress, satisfied with their performance, allows them a brutal, simultaneous orgasm before leaving them, spent and bound, in their sixty-nine embrace.