Yuriko was pleasuring herself alone tonight because her husband was away on a business trip. Then, when her excitement reached a climax, she went to her son's room, who was sleeping next to her... Yuriko kissed her son tenderly, and, forgetting that she was a mother, sucked his penis in a daze... Then, she climbed on top of her son and rubbed her crotch against him, but her sleeping son woke up...