My daughter and her husband are living with us for a while, until their new place near ours is finished. Hayato, my son-in-law, works from home, so we spend a lot of time together — and one day he called me over with a serious face, saying he had something to discuss. It turned out that his is so big that he and my daughter have stopped having sex at all. I promised to help him, knowing he was under constant pressure from his own father about having children — and then found myself faced with a cock that went far beyond anything I'd imagined.