My horny sister won't leave me alone unless I stretch her pussy out and ass

Ever since my sister moved into my house, my life has become unbearable. I’m late for work every morning because she takes forever in the bathroom. One time I started banging on the door to make her get out, and once the door opened, I saw her brushing her teeth half naked. Not going to lie, seeing her petite nude body was a big turn-on. She had a cute little ass and a juicy little cunt.