Shall we make a child soon ... One day, my wife's sister, Fumino, stayed at home for five days, one day when I was working hard to make a child with my wife.If I was careful, I continued to work on the couple, but it seemed that my voice was leaking, and Fumino seemed to be unable to sleep.Then we became aware of each other, and we began to have a relationship where our wives did not know.The number of times gradually increased, and all sperm for making children with my wife was used for my wife's sister, Fumino.
