Miki saw her son's friend Kosuke, who came to stay at her house, masturbating. Miki 's embarrassment tickled Miki's mischievous side, so she invited him for a drink and seduced him... Kosuke's insatiable penis was not Kokoro with a single ejaculation, and he devoured Miki's body again and again and again... From that day on, Kosuke came to the house many times and they continued their physical relationship, but Miki's body finally began to scream in pain from his insatiable sexual prowess...