One night and two days of 1 night and left alone by my wife's sister who suddenly came over

While my wife was returning to her parents' house to give birth, my sister-in-law Mine came to help with housework. Instead of Kenji, who can't clean at all, Mine cleans the room. Every time I vacuum, I was able to see my breasts and the unprotected panties from the wipes, which made me look away. Mine, who was so pleased by Kenji's innocent reaction, reached out to her crotch, saying, "I'll not only take care of my housework, but also take care of me."