Every morning, Yuko went to wake up her son Manabu, a university student who didn't like mornings. Perhaps it was because of his strong libido or his Sana, but Manabu, her only son, had morning wood every morning. It was a familiar sight to Yuko, but that day, when she woke him up, Manabu was fast asleep and began to masturbate with a look of pleasure. Yuko looked at Manabu with a smile, but thinking about it, it had been a long time since she had seen Manabu's penis in person. Yuko swallowed her saliva as she looked at Manabu's long penis. Manabu was masturbating while sleeping with a look of pleasure. Yuko's hand naturally went to Manabu's penis...