Honestly, I thought that my mother-in-law Reiko was prettier and sexier than my wife. So when my wife went on a trip and left the house empty, and Reiko took care of me during that time, I was so excited that I couldn't think straight. Maybe it was because of that restless state, but I accidentally... peeked at Reiko changing her clothes. Seeing Reiko's disgusting body for the first time... and her confused expression... I couldn't hold back any longer.
