One day, my stepmom Satsuki suddenly came into my room saying, "I've put on weight recently..." Then, as if to provoke me, she showed off her voluptuous body. To begin with, Satsuki had such a great figure that she didn't need to diet, so I didn't see her as a "mother," and at that moment, I had a naughty fantasy. A few days later, she came clinging to my body, this time in a leotard, and said, "I'm going to lose weight, so help me..."