Just walked past a house near mine on the way home from work to see the first floor curtains open and someone (couldn't see who) watching hard core porn on their TV. Got me very hard.
A few years back, I watched a lady masturbate through the curtains in her window. She clearly could see me watching.
Quite some years ago I was in a carriage on the tube. There was only me and a very good looking black girl. She started masturbating between stops. After the first stop, and no one joined us, I got my cock out and wanked it until I came (a bit messy, but hey it was fun). We didn't touch though - she got off after the next stop and smiled at me on her way out of the train.
Do others like exposing themselves in this sort of way? Either in public or via open curtains?