My wife's sister was quite a bit older than her, almost like a mother in some ways. When she needed a place to stay there was no thought of refusing. She was at least 20 years older but still in great shape and a very attractive woman. From a physique perspective they were opposites in many ways. Each had their own qualities but both were very good-looking women. When she made a special request of me I knew there was also no way I could refuse. I didn't want to jeopardize my marriage. I didn't want to do what she asked, and needed, at first but I found myself enjoying it. I was soon to be shocked at how little I knew about these sisters.