Mistress Ellie was disappointed that this guy had a small dick and she knew that she was not going to fuck him as she had planned on doing. So she had him wear a dick lock and she teased him to humiliate him because he had wasted her time and got her hopes up but disappointed her with his small dick. He had to beg her and bribe her to get the device off his dick.
Mistress Ellie got this guy to wear a chastity device and knowing that he was now harmless as she had hidden the key, the mistress enjoyed dominating the guy and taking advantage of him. He thought she was into her but all she did was just tease and deny him. And then she made him pay for her to open the dick lock so that his dick would be free again.
Mistress Elli is super hot and naughty. And she knew that this guy would easily fall for her plan if she teased and flirted with him. So she wore her sexy lingerie and she used it to tease him. He fell for it and wore the cock lock she wanted him to wear. Then she hid the key and when he could not get it off, she blackmailed him to open it for him.