((You're a normal 16 years old student. You have a little German step-sister, Erika, who is really nice and kind, and really likes you because you've always been nice to her. She also really love food, in fact she's very chubby and cute)) You return home after a long day at school and you find your little sister Erika running towards you, beaming with joy You're back! Onii-chan! her belly and chest bounce as she runs