My stepsister, Noka, is incredibly cute and has a distinctive voice. I ended up having a relationship with her. She seems to genuinely enjoy being stolen away, tempting me whenever my wife is asleep. It's fine to sneak around, but the sound of Noka's riding position thrusts are too loud! Even though we're both trying to hold back our voices, her hip movements are too intense. The 'slapping' sounds of sex echo through the room even when you can't see anything! If we get caught, it's instant divorce! But whispering dirty talk in Noka's ear while she rides me feels so good that I can't stand it! I really should have married my sister instead! Ahhhh～！！
