JUX-348 Sunburned Temptation of the Sister-in-Law Yuko Shiraki

My brother and his wife went on a trip abroad, and I, Takashi, returned to my hometown from Tokyo to keep house. After a week passed, I was shocked to see my brother and his wife back from their overseas trip. My sister-in-law, Yuko, who used to be fair-skinned and beautiful, had tanned so much that the marks from her swimsuit were visible. Although I knew I shouldn't look, I couldn't help but follow the tan lines on Yuko with my eyes. 'Do you want to see the tan lines under my clothes too?' Yuko smiled. Desperately trying to suppress my desires, I decided to return to Tokyo, but my brother suddenly had to go on a business trip, leaving me alone with my sister-in-law…