It was already late at night when my cousin Momoka, who had just come to Tokyo, contacted me and said, "I missed the last train because I went out drinking," and said, "Let me stay over." I was excited to see my cousin, who had become so cute after a long time, but it was late at night, so I just went to bed. When I woke up in the morning, Momoka was in bed, with her nipples exposed and her panties showing, looking extremely erotic. I didn't know where to look, but when I woke her up, she still had the same defenseless look. I was wondering what to do when Momoka asked me to have sex! Huh? Is that the kind of character Momoka is? I was confused by Momoka's slutty appearance, which was far from what I remembered, but we started having sex without thinking... and we ended up having sex all day long... A documentary video of a man suddenly appearing as a slut and having sex with his cousin.