On the day my wife left for a trip, my stepmother made a special trip to Tokyo and stayed over at my place. For the few days my wife was away, I took care of my stepmother. I asked to touch her big tits, and at the doorstep, she passionately begged me not to leave. Alone together in my small house, our physical relationship crossed the line. I secretly shot my cum inside my stepmother, deepening our bond. My stepmother's big tits made my heart race. It was a special day, enjoying time with my stepmother.