With a smirk, the femdom mistress teases her sub, 'I want to see you worship your own filthy cum.' He obediently strokes his cock, his body tense with anticipation. As the first drops of cum spill onto his hand, she leans in, her voice a low purr, 'Clean it up, slut. Lick every drop.' He hesitates for a moment, then brings his cum-stained fingers to his mouth, tasting his own sin as she watches, her eyes gleaming with satisfaction.