While I was home alone at my wife's parents' house, my sister-in-law Mio suddenly came home. My eyes were drawn to Mio, who exuded a sexiness that my wife didn't have. Perhaps noticing my gaze, Mio also exploded with feelings of fleeting love for me. My sister was pregnant and everything was going smoothly, but Mio's family life was not going well. With a mixture of maidenly Kokoro and jealousy, she asked for unprotected sex, and I squeezed out his sperm while on top, and her eagerness to get pregnant Mio I could only get a violent erection and ejaculate repeatedly.