NSFS-293 I had sex with my wife's sister who came to take care of the plays for three days while my wife was away. 2 Rena Munakata

The husband had completely forgotten that his wife would be away for three days to renew her qualifications. He was confused when he was forced to take care of their newborn child. Then his wife's older sister, Rena, came to help out. And while his wife was away, he ended up living under the same roof as his sister-in-law...