Nao Kiritani: nana étudiante avec un gros cul - partie 1

My name is Nao, and I am an art student. For a school assignment, I was supposed to do a drawing of a naked man, so I asked my boyfriend to be the model. But, halfway through the assignment, it just working out with him. As I was worrying about what to do, he said, "If that's the case, my father will help you"! So we asked him to do it and he agreed. But, when he finally got naked, he was so hot that I.......