Lady Velvet knew her ex well and she knew all his weaknesses. She wanted something from him so she exploited that knowledge to get what she wanted. The mistress wore her sexy pantyhose and she used it to tease him. He was turned on and did all that she wanted before she mistress found a way to make him jerk off instead of sleeping with him. He did not realize what she did to him.
Lady Velvet looked sexy in her pantyhose and she wanted this guy to know it and to see it. So she teased him while she wore it and nothing else. He loved what he saw and he was turned on. He wanted more but she did not have more to show him. Instead, she left him high and dry. He had to go and jerk off at home for him to feel better.