My sister and I were at our mom’s house. It’s was early afternoon and the rest of the family were home. They all packed up for a Sunday outing. My sister Pam and I didn’t go because I had to go home and study, and she was working later that evening. I am 23 and she is 33. She’s a model and very sexy looking. She is around 5.9, 125 pounds, skinny figure with c36 breasts and a really great ass. Brown eyes, black hair and lo...