Ever since Kouta found out that his stepmother Nana was secretly masturbating in the bath, he couldn't help but peek, despite knowing it was wrong. One day, while cleaning the bath with Nana, Kouta accidentally sprayed her with water from the hose. Kouta panicked for a moment, but upon closer inspection, he saw that Nana's breasts were clearly visible through her soaked, bra-less shirt... Kouta could no longer contain his excitement and pushed Nana down...
