Mao, the mother's best friend, came to the house earlier than the scheduled time, and the son and Mao were left alone to wait for the mother, who had just left the house. Her big breasts peek out from her wide open chest. My son can't help but get an erection when his girlfriend's thighs are exposed and her panty shots are shown to him. When Mao saw her son's state, he gave her a bewitching smile and whispered in her ear, ``I'll clean up your penis, which seems to be in pain.''