The submissive, bound and helpless, watches as his mistress meticulously selects her footwear - tonight, it's a pair of sky-high heels, perfect for the task at hand. She circles him, her eyes gleaming with sadistic pleasure, before delivering the first crushing blow. His balls swell immediately, a deep blue hue spreading across his skin. He cries out, but she merely laughs, relishing his pain. She continues her torment, her heels grinding into his sensitive flesh, his humiliation her ultimate aphrodisiac.