My brother's wife with a strong sex drive. Every day, my tsundere sister-in-law tempts me, making my life miserable. As soon as my brother leaves for work, she starts playing tricks on me. Sometimes she deliberately shows me her masturbation, other times she displays their marital acts. And finally, it happened. When I was about to go to sleep, she sneaked in... and we crossed the line that should not be crossed.
