Divorce with her husband six years ago, Moa had to raise her beloved son alone, Satoshi. She was always pampered and considered her son as a boy. One day, when she came to wake up Satoshi, she discovered his big dick was erecting! Unexpectedly, his son was so big, the dick was so big. Long time no see dick, the hornyness in the moa arose again. Although she knew it was wrong, Moa was like a dementia, she could not stop thinking about Satoshi's dick. Unable to control it anymore, she immediately put sleeping pills in fruit juice, luring him to drink. After his son was fast asleep, Moa immediately made his incest and wrong conspiracy ...