A secret sex movie of Eimi Fukada and her sister’s lover. One day, she thought there were only two sisters at home. She went naked to find her sister and saw her sister’s boyfriend naked. They froze for a moment to look at each other’s genitals. She kept peeking at her sister’s sex scene with her boyfriend. Her boyfriend kept thinking about her sexy body and she kept flirting with him, making him unable to resist fucking her sister. After a while, his girlfriend found out and….