My rationality collapses and I fucked her over and over again with my step-sister seducing me with her demonic smile and beautiful butt, and she has sex with me all seven days on my way home.

During summer vacation, I went back to my hometown. The person greeted me was my sister-in-law Kana... My eyes were glued to the adult smile and the panty lines that were clearly visible through the maxi dress. That night, when I looked into the sliding doors of Kana and the others' bedrooms, Kana found her flushed face and fixed her messy clothes. I was captivated by her lewd appearance, and the next day I saw Kana comforting her body. My crotch swells at the sight, and I was so passionate about Kana-san's dick was screwed from behind...