One day, her son's friend Shinji comes over. His mother Lily likes his honest personality and his good eating habits, so she treats him in various ways... Seeing his innocent figure glimpsing at her chest, Lily can't help but tease and seduce him. However, Shinji's sexual prowess doesn't weaken no matter how many times he ejaculates, and he continues to violate her recklessly. Then, Lily's body can no longer withstand the endless sexual intercourse of her son's friend...