Quite a few years ago, my sister came home from school. In those days, girls worw skirts or dresses. She came home and I followed her into her bedroom. She had a red dress on that just just above her knees. I wanted to either lift her dress up or put her head between my legs and lift her so her legs were in the air. I chose to put her head between my legs and lift her up so her legs were in the air. So when I did that, her legs were in the air and her dress went down and her white panty cladded ass was right near my face. She screamed that she was wearing a dress. She was shaking her body and I lost my balance and fell backwards onto her bed. Her panty covered ass landed right on my face. With her ass on my face, she raised up in a sitting position on my face. She raised her ass up a little and pulled her panties down and she sat back down on my face with her bare ass. I was struggling to get her off my face but I couldn't. She was too strong for me. She bounced up and down on my face and she was laughing her ass off. After 2 minutes of being on my face, she got off. She called me a jackoff and told me that I suck dick. I think she was mean to me.