My Aunt Barb has been the subject of most of my masturbation fantasies even before I was able to cum. Actually she's my mother's best friend since childhood. She is 5'6', about 140lbs, glasses, short hairstyle which she never seemed to change, b cup breasts, big nipples, and a great round sexy ass, always wore earrings, and her wedding rings which she never removed.
I can remember even at an earlier age getting excited when she came over and getting erections. The first time I ever came I was thinking of her naked while stroking my cock. As the years wore on she seemed to get sexier. When I was about 12 I began to collect photos my parents took that Aunt Barb was in to jerk off to in private. At about 16 years of age I began taking my own pics of her. I got pictures of her at a wedding wearing nylons and a sexy dress which had me leaking precum while I was at the wedding. Our families always vacationed together and I always made sure I got a lot of pics of Aunt Barb on the beach in her lounge chair covered in tanning oil. I would run up to the cabin to jerk off thinking about how great the pic would turn out.
Now that I'm in my 40s Aunt Barb is a grandmother in her late 60s and still looks great. The only thing that really ever changed on Aunt Barb was her style of frames for her glasses. Same bod, same hair, earings, and her engagement and wedding ring which is now stuck on her finger permanently.
I now have over 400 photos spanning over 30 years that have Aunt Barb included in them which I still masturbate to even though I'm married and have a great sex life. I always put them on a shelf in the closet in a shoebox. My wife never caught on because other people were usually included in the photos also.
Recently Aunt Barb came over to the house at my wife's request to give her decorating ideas for the upstairs. She went into the bedroom, pushed back the hangers in the closet and down goes the shoebox spilling 30 years of photos of her all over the floor. I thought I was going to die right there. My secret was out after all these years. I think I turned 100 shades of red. We were both speechless and I'm glad my wife wasn't home to see this. She said, 'You have a lot of photos of me don't you?' I just said, 'That's right.' Then she asked, 'Do you think of me when you masturbate?' I never heard her say masturbate before. I answered her, 'Only every day, trying to break up the tension.' She smiled and seemed to be very flattered by the whole thing. 'You still think I'm sexy at 66?' she asked. I told her she was better than ever. She helped pick up the photos and we went downstairs and I asked her if we could keep this between us she said, 'Of course dear, but don't think that I'm going to pose nude for you anytime soon' as she laughed.
We never spoke of it since, and after she left I had the best masturbation session of all time.