After a few years studying at university in Tokyo, my younger sister took the opportunity of the New Year holiday to return home and visit the family. I truly did not expect that after such a long time apart, the little girl I once knew had grown into a beautiful, graceful young woman. However...
I couldn't believe my eyes; my sister no longer had the innocence of her younger days but instead had something very womanly, very provocative about her. This was evident in her way of dressing (her dresses were too short, clearly showcasing her underwear, she wore very thin tops that revealed her large, firm breasts).
This made me very uncomfortable; the thought of incest always crossed my mind whenever I saw her. What am I supposed to do???