This sunday we went to a park.

We sat near a middle aged couple. They were just talking to each other with the man's backs towards us and the lady facing us. we got a wild idea.

I started fondling my GF knowing that noone else is near by. She started unzipping my jeans. At this moment the lady looked at us and started watching as my GF was giving a great play job., She kept on watching without the man's knowledge throught the encounter. When I came, my gf swallowed all the cum and the lady smiled and within no time she left with her man. To where?