Reiko was watching over her daughter's couple who are trying to get pregnant. I was worried when I heard that I would be abstinent for a month to increase my chances of getting pregnant. I couldn't hide my surprise and excitement in front of my son-in-law's cock, which had swollen with a month of abstinence. (I wonder what would happen if I got so big ... I wonder what would happen if that happened) Reiko desperately tried to dissipate the uncontrollable excitement with masturbation, but Reiko who couldn't stand it sucked on her son-in-law's cock ...