Recently, my old man remarried and I got a stepsister named Himari. I was happy to have a cute little sister, but it turns out Himari is a dick-loving slut who flashes her panties to seduce me when mom isn't looking, which is fucking annoying. One day, my mother-in-law went on an overnight trip with a friend, leaving the house with only men. Himari saw this as her chance and came onto me...
