Mistress Yan asked the slave to take off his pants and wear only his underwear. She began to his cock with her feet. The slave could not bear the pain, He cried and begged Yan. But Yan looked at him coldly and did not stop. At last, she used her feet to remove the slave's cock from his underwear and put some glycerin on it, Then she continued to rub it hard, Until he Cum shot.