A desperate, caged sub pleads for mercy from his stern Femdom. She smirks, enjoying his torment. She runs her fingers along the outline of his throbbing, trapped cock, whispering filthy promises. She strokes his balls, feeling them tighten with the need to unload. She brings him to the brink, only to deny him, over and over. His cries of frustration fuel her power. At last, she unlocks his chastity device, allowing him to finally, violently, come undone.