I (M)clearly recall the first time I saw my sister in a different light we spent a lot of unsupervised time with each other we 1 year apart in age me being the oldest, I slept in the basement and she slept upstairs. One morning she came down to do laundry as I was just getting up. When she bent over to put her basket down I saw she wasn't wearing panties. My eyes were locked on her big round ass and her plump pussy mound from behind. I stopped and realized I had a raging hard on created by looking at her. When she started to stand up straight she winced and grabbed the top rear of her hip. l jokingly said getting old sucks don't it. She responded go fuck yourself and we both laughed. I asked her if she wanted me to try to relax the muscle for her.she said that would be great if you could. I suggest that she stand in front of me while I sat on my couch and rubbed it softly, so there I am with her round ass right there and my hands squeezing and rubbing her hips. I don't think I could get any harder than I was so I asked if it was helping, her response was sort of but it might be better if she was laying flat so I was like my couch is a love seat that won't be comfortable and the other flat surface that is comfortable is my bed and that just seems weird. So she suggested that I take the cushions off and put them on the floor. Now I think that is to low for me to do it correctly. So I said I might have to kneel over your thighs so I can do it right. That's fine with me and maybe you should rub my shoulders, back and legs too. just watch your hands so I start squeezing her shoulder muscles and slowly working my hands over her back still kneeling over her and working my hands further down towards her hips meanwhile trying to carefully raise the bottom of her T-shirt so I can get a better view as I have to move myself lower over valves. It's working I'm exposing exactly what I was wanting to get a closer look at