From the day I was caught masturbating with my sister-in-law Asuka's underwear, our relationship began… As soon as my brother leaves for work, we have sex with him inside me, or during chores, I tease her to give me a blowjob… I know this relationship is wrong. Yet every time I see my sister-in-law passionately making love to my brother after so long, I can't control myself and end up having sex with him inside me again…
