Mistress Ava Black knows how to use her giantess powers. She hides them and only uses them as a last resort. When this guy tried to use underhand tactics to run her out of business, she had one last weapon against him as he had more money than she did. She crushed him with her ass and she shrunk him. She threatened to leave him a tiny man and he begged her to forgive him. He never messed with her again.