Returning to my hometown after a long time living in Tokyo. Because my parents were away, only my younger brother was at home to welcome me. I didn't expect that in just a few years, my older sister would become an extremely attractive woman! I couldn't take my eyes off her hot body. Knowing that my older sister was extremely naive and gullible, I decided to trick Mary so I could fuck her! He lied that women who don't have sex for three years will have their hymens close and become virgins again, this is called "second virginity". Because I was afraid of the feeling of losing my virginity for the first time, I asked my older sister to check. Just waiting for the opportunity, I continued to commit my wrongdoings with my innocent older sister...