My gf used to be heavy when she was younger. She still acts different from other (hot) girls. She's willing to try pretty much anything and she doesn't mind being mistreated sexually. She also finds shame to be a huge turn on.
We were at a hotel recently and I got horny and asked her what she would do if someone broke in during the night and wanted to rape her. She started rubbing her pussy and asked "would you let them?".
