It was a warm summer night with little or no moonlight. My wife and I had the evening to ourselves and decided to park out along the river. We got out of the car and were leaning against the front fender with the car between us and the road. A little foreplay, her top open , my hands on her tits playing with her nipples as her hand rubbed my hard cock thru my pants! Soon she had my pants unzipped and open and slid them down setting my cock free in the warm night air! She pushed me back against the car as she bent over and began sucking me! She had one hand messaging my balls with the other hand stroking the bottom half of my cock as she sucked on the head of it! I knew I couldn't take much of that and told her I want to fuck her! I stood her up against the car fender as I got her jeans down! As I leaned over to suck on her nipple, my fingers slipped into her wet pussy! I had her turn around, facing the car and leaning over the fender as I slid into her hot pussy! We started fucking in long deep strokes with her fucking herself back at me with each stroke! It wasn't long before I felt her cumming, her juices sqirting out around my cock with each stroke, as she moaned! "C'mon baby shoot in me!" made me start spurting deep inside her! As we both lay over the fender of the car catching our breath, we heard a noise and looked up across the road to see some guy standing there watching us!! When he saw us looking at him and trying to cover up, he climbed on his bicycle and rode away! "Wonder how long he was there?" "Don't know, but he must have enjoyed watching or he would have left!" We quickly got our clothes in order, got in the car and raced home! Many times afterwards we laughed and wondered just how long he was watching us!