Have you ever practiced visualizing fantasies that every man thinks about at least once? My niece, whom I hadn't seen in a long time, had become a stunning beauty. She approached me with the same innocent manner as before, dressed without any defense. Yet her body was so alluring that it naturally caused an erection, which one would usually follow instinctively. However, the relationship between an uncle and a niece, and with a wife nearby... So, what should I do?