Sex in a car seems to be the running theme here, so I'll throw in one of mine.
Back in high school my girlfriend and I were parked up on the side of a mountain where they had just paved new streets, but hadn't started to build homes there yet. It had a great view of the whole valley.
We are in the back seat, things getting hot and heavy, we do our stuff, the windows are steamed-up, we're still naked and then there is this knock on the side window of my car. It is a cop. I open the door (2-door) from the back seat and the cop looks in. He shines the flashlight on my girlfriends teenage body with DD tits and just smiles. He says "you have ID on you" to which my girlfriend replys with a huge, sexy, I'm a naughty girl smile: "not on me." I had to choke back the laugh so that the cop didn't go harder on us. He lectured us about having sex there to which I replied "well, where are we gonna' do it? Her driveway?" He said "Good point" and told us to have a nice evening to which my girlfriend once again shot back, index finger just inside her lips in the total Hollywood sex kitten way "thanks, I already did." Yeah... she was hot.
Mr. WS