"Hideomi, can you show me your grandchild soon?" I couldn't hide my shock at my father-in-law's words. It was supposed to be a fun hot spring trip for the whole family, but he took advantage of the situation and asked me to make a baby with my wife. After a month of abstinence, the day of the hot spring trip arrived, but perhaps because it had been so long, my wife's vagina became tight and painful, and she got angry. While wandering around the inn to try to distract myself from my frustration, I happened to see my mother-in-law taking a bath...