When he met his niece for the first time in a long time, she had hit puberty and her body was that of an adult. The uncle's reason could not be suppressed by the sex appeal of a woman who was growing into an adult, something she did not have as a child, and it exploded, leading to incest. The more the niece felt the sense of immorality, the more lewd she became. He could not stop having sex with his niece, not knowing when the relatives would come in. His niece, awakened to her first sexual experience, felt and came. His niece's appearance as she gradually became obsessed with his dick was sure to excite him!