My brother's wife with a strong sex drive. Days spent being toyed with by my tsundere sister-in-law who tempts me every day. As soon as my brother leaves for work, she starts playing tricks on me. Sometimes she deliberately shows me her masturbation, other times she flaunts her 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.
