Recently, my mother has suddenly become more beautiful. I was sure she had gotten a boyfriend, but I wanted to celebrate if it would make my mother, who raised me alone, happy. But I never thought that the person she wanted to remarry would be my best friend. And so, as my mother, my best friend, and I started living together, I heard my mother moan, something I had never heard before. I never knew she would make such an erotic sound. When my best friend's dick penetrated my gentle mother, she turned into a raw woman...