Busted by Girlfriend

This happened a number of years ago. I called this woman I was dating and told her I would like to come over. She said to come on over. On the way I saw this nice looking young woman turn into a local shopping center. I love exposing myself to young women while I masturbate and never passed up an opportunity. I followed her into the parking lot and watched her park. I circled around as she was walking to the store. When I pulled up beside her she had on a very short tight skirt and a thin halter top that very clearly showed off her very hard nipples on a very nice set of about 34C tits. She went into the store and I drove around behind the shopping center. I got out of my car and walked back around to my trunk. I took all my clothes off and put them in the trunk. As I closed the trunk a car drove by and this woman saw me standing there butt naked with a raging hardon. I got back in the car and drove back around and parked beside the young girl's car. Her driver's door was on my passenger's door side, which would give her a clear view through my open window at me jacking off. I put some girl's ponytail bands on as cock rings; got myself all lubed up and started stroking myself. She wasn't in the store a long time. Maybe about 30 minutes, but I was determined to wait on her. I stroked myself the whole time and almost got caught a couple of times when a couple of women walked past my car. One of them looked in and saw what I was doing but she went on to her car and drove away. Then I saw the young girl coming out of the store pushing a basket. As she approached I was getting so excited. She pushed the basket around behind her car and pulled it up between our cars. As she reached for her keys she must have heard the sound of my hand sliding up and down on my cock because she turned and looked in my window. She just looked for a few seconds with a very surprised looked on her face. She turned away and unlocked her door, but looked back again when she opened her door to put her things away. This time she took a much longer look. I slowed my stroking to enjoy it as long as I could. She leaned down in my window and said, "You look like you are enjoying yourself. Are you going to let me watch you cum? Don't rush I have to unload my basket." She looked in at me between each bag she put in her car until she was done. She pushed the basket back and came back to my window and leaned down and looked at what I was doing. I couldn't take it any longer and I started to cum. The first squirt hit the steering wheel and the rest were all over my legs and stomach. I was looking at her looking at me the whole time. When I was done she told me to be careful and not get caught. She got in her car and drove away. I didn't want it end right away so I sat there and kept stroking myself. Next thing I heard my girlfriends voice at my driver's window and she was really pissed. She said, "You fucking pervert. I thought I would catch you exposing yourself sooner or later. The woman that lives next door to you told me she has seen you doing this in your back yard many time. How often do you do this and where are your clothes? Don't bother to come over now. I'm sure you would rather stay here and have another woman see you jacking yourself off." She left and I got dressed and went home. I called her a few days later and she said I should come over so we could talk about my obsession with exposing while I masturbated. I did but that is another story.