Sachiko: Liberal arts college-küken mit dicken titten - teil.1

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...