★My stepsister is turning 20, and she's having a small birthday party at my house with her best friend Natsumi-chan. My friend, who likes my stepsister, is also attending. The main goal is to get into a good atmosphere with Natsumi-chan and do something naughty. I'm already showing my intentions! We toast with champagne and move on to the king's game! Everyone gets excited and goes topless! I got excited seeing Natsumi-chan's breasts in front of me, but my erection wouldn't go away because of my stepsister's grown E-cup... I finally took the forbidden action!?
