I came from the countryside to Tokyo for a company training session and stayed at my sister's house for about a week. It's been 12 years since we last met, but I'm excited to be so close to her like a lover! Her boobs and ass have become erotic since we last saw each other, and I can't control my excitement even though I know it's no good! When I ran into the bathroom to try to suppress my lower body's excitement, my sister followed me and found out I was erect. "Hey, why are you getting hard! Did you get hard because you saw my sister's boobs? You were imagining something erotic lol" This was the trigger for us to have sex morning, noon and night. Titty fuck, blowjob, first time sex, slippery play, etc. What? Isn't her technique amazing? In fact, my sister was a prostitute working at a soapland. But that doesn't matter! Because my sister is warm, soft, and wraps around my dick and everything, she is the best prostitute in the world, just for me!