In a dominance and submission dynamic, a mistress takes her sub's penis in her hand, her long nails digging into his flesh. She strokes him slowly, torturing him with her touch. Her gaze locks onto his urethra, and she inserts a sound, stretching it wide. She works him expertly, bringing him to the edge of climax only to deny him, leaving him begging for release. She continues this cycle of tease and denial, ruining his orgasm, all while maintaining control, her domination complete.