My sister was hot, and I wanted to fuck her. I could occasionally flirt with her, spank her ass telling her she was hot. Then one night I was super horny while taking a shower, so I walked out naked. When she saw me she asked me why I naked. I told her I needed a tight pussy to fuck. At first she stormed out of the room expressing disgust, but then she came into my room wearing only these black panties. I touched her breast then wrapped my arms around her. All she told me was to go slow and not hurt her.