I was invited by my wife's parents to go on a hot spring trip with my family of four. - He had been abstinent for the first month at the behest of his father-in-law in order to try to conceive, and he had decided that this day would be the day he would embrace his wife, but the couple unexpectedly got into a fight. - I lost track of my pent-up sexual desire, and was at a loss as I stared at my penis, which was erected even without touching it. - That night, I couldn't sleep, so I headed to the bathroom to try and distract myself, but I happened to witness my mother-in-law's sexy bathing appearance...