Nagahara Natsuki, the wife of my big brother who loves to lick

My brother and I celebrated me when I finally got a job. The three of us were having fun drinking, but my brother's wife, Natsuki, was completely finished. When my brother went to the bath and was alone with the two of us, Natsuki, who had a bad habit of drinking, tried to force me to drink. He then said, "I'll cleanse it," and began licking the alcohol that had spilled on his mouth. From the mouth to the breasts...