ROE-506 My beloved mother and older brother were having sex behind my back. I relentlessly fuck my mother, who now has a womanly side to her, not wanting to be outdone by my brother—a codependent mother-son incestuous relationship. (Isshiki Momoko)

Five years ago, after my father died, my mother raised my brother and me all by herself, and she was the most important person to me. But before my brother, who had moved to Tokyo for work, came home for a visit, I always felt like she wasn't her usual self. "I bought better meat than usual today. You like beef stew, don't you, big brother?" She didn't seem to care about me at all. There was something strange about how she was interacting with my brother. And then I saw it. I saw my mother happily sucking on my brother's penis in the bathroom...