My girlfriend's older sister is always quiet and I have no idea what she's thinking. That's why I don't really like her. But she's beautiful, and on top of that, she's always braless at home and her nipples are always erect, which is strangely erotic and makes me look forward to going to her house. But it seemed like her older sister had had a fight with her sex friend and she seemed to be in a bad mood. I was thinking how nice it would be to have such a beautiful sex friend, but it seems she was looking at me as a potential new sex friend...