The last night of a long vacation.
It was a long vacation. We had spent the week with my wife's parents and grand parents, not to mention our two little girls. There was very little privacy. My wife and I hadn't had time together all week and she had been teasing me. We had to share our room with our girls so there wasn't a moment alone.
On the last night I stayed up late to read. It was after midnight and I was getting very horny. I decided to walk out onto the balcony and take things into my own hands. We were staying in a condo on the fifth floor and I was pretty sure that I couldn't be seen. As I started, I noticed some people walking on the beach. One girl walked away from the group and towards our condo. She got behind the tall brush where people on the beach couldn't see and pulled down her shorts and panties.
This instantly got me hard. She squatted down and started pissing. I got so turned on once I realized what I was seeing. As she stood up she didn't immediately pull up her shorts, and seemed to be rubbing between her legs. She had a nice white ass that moved backwards and forwards with the movement of her fingers, that made me explode when I saw it. It was a shame she couldn't see what I was doing but I sure enjoyed the show. The beach trip wasn't so bad after all.