[ROE-506] My beloved mom and brother were having sex without telling me. A mother with a woman's face, determined not to lose to her brother, is by the 'codependent' mother-son incest

Five years ago, after my father passed away, my mother, who raised my brother and me on her own, was the most important person to me. But before my brother, who had just started working and moved to Tokyo, returned home, I always felt that my mother wasn't the same as before. "Today, I bought better meat than usual. Big brother likes beef stew, right?" She doesn't seem to care about me at all. Somehow, she interacts with her brother in a strange atmosphere. And then I saw it. In the bathroom, I saw my mother happily taking my brother's thing into her mouth...