A dominant mistress, unseen, commands her submissive to strip and present himself. She binds his wrists, exposing his vulnerable sack. She teases his cock, denying release, before focusing on his balls. With expert precision, she ties them, pulling taut, eliciting groans from her bound toy. She admires her handiwork, slapping his sack, making him wince. She milks his cock, bringing him to the edge, but denies him climax, leaving him aching and yearning for more.