My neighbor Clara is a 44 year old naïve hypochondriac and lives directly across the hall from my apartment. I'm 73 years old, retired, never married and living alone once again. I have known her for over three years and we are sort of friends visiting each other often for snacks and dinners sometimes. She has always complained of medical problems but never seemed seriously ill or sick. Over the last year she has gotten much worse with her complaints of illness or just aches and pains. About ten months ago she began showing me areas of her body that hurt often exposing herself showing me areas of her breasts and often her hip and even the cheeks of her but. At the time I'm sure she did it innocently trusting my old age I presume. One night in particular I guess about 5 months ago she asked me to rub the thigh of her left leg baring the entire left cheek of her butt which I also took advantage to rub for her. With my prostrate problems I hardly ever masturbate anymore but that night aroused me enough to do so. I began to realize how naïve Clara truly is and began taking advantage of her buy offering to ease her pains regardless of where they might be. I started visiting her more often and instead of waiting for her to complain about something I began asking her where she was hurting. I got bold enough after a week or so to suggest she only wear a bathrobe or night gown when I come over which to my surprise she began doing. The first few times she had a bra and panties on which was fine with me since it had been years since I had seen a women in underwear. She unashamedly had me rub her legs, shoulders and allowed me to rub her inner thighs which had me achieve erections a few times. I got up the nerve one night and suggested to Clara that if she really wanted me to sooth her aches and pains she should not have underwear on. I did say I didn't want to embarrass her but mentioned my age and told her I didn't want to offend her either and that I had already seen parts of her private areas anyhow. Instead of being offended by what I said she only asked if it would bother me. That's the first time I ever told her I had a prostate problem telling her I was impotent and no longer interested in sex which was a boldface lie. The next night was the first time I saw her naked and although she doesn't have a perfect body she is still built well at her age. I controlled myself for a few weeks only touching her breasts briefly and letting the back of my hands touch her pubic hair. Little by little I took more liberties and finally the one night noticed how she was becoming aroused. This had me aroused also and I simply asked her if it was ok to touch her vagina and with that she only shook her head yes. I didn't finger her right away but without asking did fondle her breasts. By then I knew she was aroused and that was when I began masturbating her telling her she needed it to help stress and forget about aches. I know for a fact she had 2 orgasms that night and since then have been masturbating her twice or three times a week. Each time I'm with her like that I am able to masturbate myself when I get back to my apartment. I try to masturbate other times but have difficulty getting an erection. Even when I can get an erection its not nearly as hard as it was years ago but I am able to ejaculate. Clara is oblivious to how excited I get or the fact I am aroused by her. I never penetrated her anally yet but I do rub lotion on her anus and she seems to enjoy when I do. She allows me to bend up and open her legs apart and seems to have no embarrassment the way I position her. There have been times when she told me it humiliates her but if I ask if she wants me to stop she always says no. I only have to ask how she feels and if she wants me to come over at night. I have never exposed myself to her and think its best if she doesn't find out how aroused I get doing all these things with her.