To keep the slave's willy out of my way, I first tie it to his body. That way I can get to his sensitive balls much better! His balls are now cooked with electricity. It's so much fun to see the slave dancing in pain! My overknee boots are perfect for teaseing his balls with my heels and knees. Is he about to say the safeword? In any case, his cock must think it's really horny, because it's standing to attention!