My sister, with tremendous huge breasts, all the boys who pass each other have their eyes nailed. No matter how much my brother is, I'm always fascinated by my sister's huge breasts, and I'm always bogged down. One day, during a physics class, I mistakenly read universal gravitational force as "bannyu chin power" ... Well, I'm not an earthling but a knocker alien, so it's okay to use 10,000 milk chin power. is!