Public encounters can be very erotic. Especially with someone you just meet. The shopping mall I go to has a parking garage where you get a ticket and then pay when you leave. All summer I would happen to come up to the ticket booth where this really hot Spanish girl worked. She would flirt with me from time to time and I always made sure I paid my ticket at her booth.
Well one day I was at home watching a few erotic videos and having some steamy hot chat conversations online. I was really horny and needed to get laid. That's when I thought about the girl at the mall. I went down there and parked on the top level away from other cars. I then went to the booth where she was working. She said she couldn't really talk to me since cars would pull up every couple of minutes. So I got into the booth and crouched on the floor so the cars could see me.