My sister and I used to fool around when we were younger. We were barely a year apart and got curious and would touch each other. This went on a couple of years then we just stopped. Grew out of it I guess. Fast forward 35 years, we are at our mother's 90th birthday celebration getting a family picture taken. She was behind me and I accidently touched her breast with my elbow (she has large breasts). I quickly moved my elbow but was surprised she pushed her breast against it and held it there. I was pretty amazed and didnt know what to do. Since then she has been asking me to visit her (she lives in another state). I'm not sure how to feel or what to do.