I ended up staying at my brother's and his wife's house for the exam. However, he was so worried about his sexy brother's wife that he couldn't keep up with his studies. One day, I happened to see my brother's wife's underwear and got so excited that I couldn't help but masturbate. What's more, my brother's wife saw me doing that. The next day, I honestly consulted my brother's wife. ``I can't concentrate on studying for the entrance exam because I can't forget my sister-in-law's underwear. Please help me.'' My brother's wife was confused... But he put his hand on my hard, erect cock that wouldn't go away and said, ``Don't tell your brother about this.'' I ejaculated safely, but instead of getting better, my erection got even harder, and I wanted my brother's wife. I forgot myself and before I knew it, I had lost my virginity to my brother's wife... I felt sorry, the pressure to do my best on the exam, and my erect penis that wouldn't let up. My brother's wife kindly snuggled up to me like that...
