"Stop it! It's abnormal to get excited about an old woman like your mother! Do you know that if you do such indecent things as a parent and child, it will become incest?" On a certain day when her father was not home, only the mother and son were inside the house... The son, who loves mature woman AV so much, cannot suppress his lust for his mature mother's body and attacks her. Even though he knows it's wrong, his erect penis enters his mother's dripping honey pot...