Sister has to come home to take care of sixteen year old brother while mom is away. (I would say that this is somewhere between Much Sex and Some Sex.)
Fiona feels that life has passed her by during her 45 year marriage to her disinterested spouse. Her still attractive body is starting to come alive again and she is ready for almost any adventure if it is something she has not done before or something that makes her pussy juices flow nicely.
My sister caught me masturbating and couldn't understand why I did it. "I tried it and it just doesn't work. It was nothing," she told me. Then I showed her she was wrong. Things haven't been the same since.