ROYD-096 I became a convenient sex friend for my big-breasted brother's wife who was tired of boring married couple sex. - Mitsumi An

A serious brother and his wife decide to live at their parents' house for a few days! - My brother and his wife are trying to conceive, and at night I hear gasps coming from their room! - When I imagine myself masturbating, my brother's wife sees me and it's the worst situation! - However, my brother's wife seems different than usual, saying, "Is it me who got you excited?" - The instinct of a former slut who can't be satisfied with just his brother explodes! - From that day on, I was asked to cum inside my cock over and over again without my parents or older brother watching...! - ?