My brother's wife with a strong sex drive. Every day, my tsundere sister-in-law tempts me, making my days miserable. When my brother goes to work, she starts playing tricks on me. Sometimes she deliberately masturbates in front of me, and other times she shows me their marital acts. Then it finally happened. As I was about to go to sleep, she sneaked into my room...and we crossed the line that should not be crossed.
