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Taro's father remarried and he now lives with his mother and sister-in-law. I thought that my sister-in-law "Rena", who was one year younger, was a gentle girl who never stopped smiling, but when we met, she gave me a footjob under the table even though my parents were right next to me, and I even ejaculated. I'm forced to. From that time on, my older brother Taro was destined to become the "sex slave" of my younger sister "Rena".