VENU-818 A sudden visit from my wife's sister left me unable to resist for an entire night and day

I was enjoying living alone for the first time in a while. Her wife is pregnant and has returned home. There, her sister-in-law, Miyuki, worried about me being alone and came to see how she was doing. She was fed up with her dilapidated house, and luckily, she invited her into the house, but Miyuki suddenly smiled suspiciously and said something strange. She said, "A man's cheating rate is the highest when his wife is pregnant. Maybe it's accumulated?"