[HUNTB-651] A brother and sister who have lived close to each other since they were children. I had special feelings, but I was holding back... However, the truth revealed by my parents on my brother's birthday ... The two were brother-in-law and sister-in-law

They are brother and sister, but for some reason, they have always been instinctively attracted to each other. However, this is a faint love that cannot be fulfilled. At some point, they are conscious that they are a man and a woman, but they put up with each other's reason. However, on his brother's 20th birthday, his parents reveal that the two are actually brother-in-law. My sister happened to hear about it. In the middle of the night when I fell asleep that day, my sister came to the room alone ... - Each other's emotions that have been suppressed until now explode! - Seek each other violently with rich sex that exposes each other's romantic feelings!