One of my first gfs was in boarding school. She was 18. I would pick her up on the one night of week that she was allowed out and we'd go for a drink. After a while we always got in the car and went to our favourite place, a car park next to a large national park. It was pretty secluded, we were always alone. If she was on her period she'd suck me off and I'd play with her clit but if not we'd fuck on the back seat or out side if it was warm. One night she was sucking my cock and I was playing with her pussy from behind (skirt on) she was sucking hard and we were both about to cum as an old guy with a dog walked by, looked me right in the eyes as i came inside her mouth and she swallowed.... then he looked right at he her pussy from behind as i flicked her clit.... he smiled and watched as she came.. he moved on before she realised and I never told her. 24 years ago... I still remember