Honestly, I thought that my mother-in-law, Reiko-san, was prettier and more charming than my wife. So, when my wife was away on a trip and Reiko-san was taking care of me, I was so excited that I couldn't think straight. Maybe because I was feeling so giddy, I accidentally peeked at Reiko-san changing. Her seductive body, which I had never seen before, and her bewildered expression... I just couldn't hold back anymore.
