Clad in black latex and fishnets, the mistress towers over her sub, bound and gagged at her feet. She attaches clamps to his sensitive flesh, making him whimper. In the dungeon's crucible, she explores his limits, inserting a urethral sound, stretching his cock and balls. She smirks, enjoying his squirming, before plunging a dildo into his urethra, fucking him slow and deep, making him beg for release.