The wife's younger sister, whom I hadn't seen in a while, had grown into an insatiable girl with a pure face. Moreover, she hid inside the house, almost getting caught by my wife, and many times went wild on my dick like a sex monster. In the living room, kotatsu, closet, bathroom, marital bedroom—she sneaked into every corner of the house, appearing out of nowhere. My sister-in-law was solely focused on extracting married man's semen using her hands... Even though I should have felt guilty towards my wife, I ended up ejaculating.
