i ended up staying at my brother's house to study for the entrance exam. however, i became worried about my brother's sexy wife and couldn't concentrate on my studies. rummaging through my brother's wife's laundry, i was masturbating quietly with her underwear in my hand, but she saw me. my brother's wife said she would pretend she didn't see it, but i, who was excited, insisted that it was my fault for being a virgin, and begged her to do something, showing her my crotch. my brother's wife, who was bewildered, but unable to resist my determination, slowly began to touch my crotch…