Sex in cars/trucks/SUV is pretty fun but can lead to some nasty bruises. My tailbone gets pretty sore. The latest was actually pretty good. I was balancing on the edge of his 4 Runner and he was really getting into pounding me. Too bad he was also looking around to see if anyone was gonna come around the edge of the storage units we were occupying. The next thing I know I'm being pushed back and he's using the seat belts as leverage to really give it to me good. So much fun but I had a hard time sitting at work for 3 days due to the bruises on my back and back side.