I went to the city for a friend's birthday and I stayed at my sister's apartment for the weekend. In the morning when I wake up she was already in the kitchen doing some cleaning. I guess she didn't remember she wasn't alone in her apartment. She never let me see her walking around the house in panties before, only in the bedroom. This really turn me on. Maybe she did it on purpose, maybe not. I don't really care because she let me fuck right there in the kitchen.