Hitch Hiker Heaven

I like to expose myself while I masterbate. One day I was riding around in my car with my shorts off and just slowly stroking myself. This is my favorite passtime. I saw this young girl (about 17 or 18) hitch hiking so I pulled over. I threw my shorts over myself but did not put them on. When she came up to the window she ask me how far I was going and I said I would take her where she wanted to go. I saw her look down at the exposed side of my butt so I knew she knew I didn't have my shorts on. She opened the door and got in and said, 'you aren't going to try to rape me or anything are you?' I told her 'no' that I just liked to have a woman watch me jackoff. She said she had never seen a guy do that before but if I wanted to she wouldn't mind. I took that as an invitation, pulled my shorts off myself, lubed up real good and started jacking off. She said all the guys she had been out with had really small ones and she had never seen one as big as mine before. I had a cock ring on so my cock was really swollen and red. I ask her if she liked watching me and she blushed and said it was making her real hot. I asked her if she had ever seen a man squirt before and she said she hadn't. I kept jacking off and her eyes were glued on my cock. She asked me if it felt reaqlly good and I said it felt fantastic, especially with her watching me. She said she was really enjoying it and wanted to see me squirt. She said she had never seen a guy do it before. We had been driving for about twenty minutes and I just couldn't hold it any longer. I told her I was going to cum and she leaned over so she could see real good. I started cumming and I could feel my asshole strain to pump it out. I have only felt that once or twice before. It hurts but it feels good at the same time. I shot three squirts straight up in the air about a foot and then the cum just started flowing out in a stream. She was stairing at my cock and her mouth had dropped open. I had never cum that much before and it felt great. I had the biggest mess you have ever seen. My cum was everywhere. I asked her to hand me the rag that was under her seat. She got it and asked if she could wipe it off for me. I said she could because it was her fault that I had cum so much. We both laughed and she started wiping all the cum off me. I told her to be careful or she would get me started all over again. She said she wouldn't mind but she did need to get home. I asked her where she lived and she said we passed it about tem minutes ago. I guess she was enjoying herself so much she forgot to tell me to stop. I didn't get her name and I never saw her again but I still jackoff to the memory to this day.