Sachiko：大奶子文科大学妹子 - 第1部分

I'm Sachiko, an art student. I was supposed to do a naked male sketch for a school assignment, and I asked him to be my model, but he kept asking for me in the middle and I couldn't make any progress on the assignment. When I was troubled, he said, "If that's the case, I can help you!" So I asked him to help me...