One day, my stepmother Mao was masturbating in the living room as usual. Then her stepson Akio came home earlier than expected. Mao hurriedly put on her clothes, but accidentally forgot to put on her panties... Akio noticed that Mao was without panties, and as he stared at Mao's voluptuous hips peeking out from time to time, he forgot that he was his stepmother and became aroused and lustful.