The three girls attending an all-girls school were starved for men. They got heated up discussing masturbation, just like male ● students would. Shiori has a brother, right? They got excited about wanting to see Brother's dick and asked him to be the model for their art homework, then made him strip naked, but it was surprisingly big! My lust escalated, and I became a live sex toy for my sister's friends… 'Huh? My sister?' After the two left, my aroused sister attacked me too?!
