My friend invited me over to his house where we would play games together. His younger sister, Kaori-chan, was also there. We decided that if someone lost, they had to do whatever the winner said. Nervous about the potential consequences, I ended up losing. To my surprise, she smiled sweetly and told me to strip naked... What? She seemed so innocent but turned out to be a super perverted J-girl dominatrix! Using proper language, she continued making lewd demands until I found myself being milked like a cow on a daily basis.