When I was in my teens, I accidentally walked in on my mother as she was in a state of undress. Yes, it really was accidental-that time. My mother had large breasts with large nipples and areola. She had fiery red hair and a full, natural bush. I acted embarrassed, said I was sorry and immediately left the room. I proceeded to go to my room and furiously masturbate myself to an intense orgasm while picturing in my minds eye, what I had just seen.
After that, I figured out a way to spy on her when she prepared for bed in the evening. When she went into the bathroom to shower or bathe, I would slip into the master bedroom, where the bathroom was located and re-arrange the curtains on her bedroom windows, which she had previously closed. I would then slip out my bedroom window and sneak around to her bedroom to wait for her to come out of the bathroom. The central air conditioning unit also was located near enough to the bathroom window that I could stand on it and see clearly into the bathroom. This was, however, much more risky. It was well worth it the couple of times that I chose to try it. I had to be incredibly stealthy so as not to make any noise to attract her attention. The view provided from that window was incredible as I watched her towel off. It was really hard not to make any noise as I held myself in position with one arm and masturbated myself with the other.
The master bedroom had windows at two outside corners and one where the bedroom wall met the house at ninety degrees. This allowed me to take different viewpoints on different nights. One corner window was my favorite as it provided me with a splendid view of her beautiful bottom, furry vagina and hanging breasts as she bent down to get her nightie out of the bottom dresser drawer. By the time she was doing that, I had already been "edging" so at that moment, I could ejaculate while fantasizing that I was standing behind her, cupping her breasts in my hands while thrusting into either her vagina or anus, depending on the mood of that day.
I would also masturbate into her panties and ejaculate into them in the area where they would be between her legs, hoping she would put them on and my sperm would be between her legs.
I fantasized and masturbated to her almost daily for nearly five years. Even dating and after having sex with girls my own age, I would still masturbate while fantasizing about having sex with my mother.