[The angle of insertion inside the skirt is too erotic…] A junior who wears a long skirt sits innocently on her senior. From the outside, it seems like an ordinary day. But actually, she was doing cowgirl sex under the skirt… It sounds like a lie, but this taboo situation is not zero in reality. In front of her, a junior who is as cute as an idol says, "If you do this, you won't be found out?" and eventually inserts it secretly… Can you resist the temptation?