I never imagined my girlfriend's elegant sister would be this erotic...! I went to help her move into the house she shares with her sister so we could start living together with marriage in mind... and there I met her sister, Kana-san, a gentle former announcer. I thought she was just a refined and beautiful woman, but while my girlfriend was away on a trip, she seduced me, whispering, "Just for now, let's keep this our little secret, okay...?" Unable to resist, I ended up having cheating creampie sex with her. After discovering our incredible chemistry, we spent the next morning with deep French kissing and intense creampies, gave each other blowjobs in the bath, and had continuous creampies in cowgirl position, our bodies entwined over and over... For three days, I drowned in the irresistible gap of this sister who transforms into a total slut the moment sex starts.