So forgot to close blinds after housekeeper came last week. My next door neighbors balcony can see into my living room when she is on the end. Was masturbating to some softcore movie on skinimax (cinemax). Right as I was about to climax I heard weird noise on living room window. It was neighbor throwing ice from her drink at my window letting me know she was there. Was really embarrassed and covering up as she smiled and laughed. As I went to window to close blinds mouthing "sorry" through window she told me to unlock my front door and comeback upstairs. I did and to my surprise she was still on her balcony when I came back upstairs. She told me to go back to what I was doing. I was a little reluctant at first but agreed hoping she was building up her nerve to come over. I didn't even here the front door open so focused on my neighbor on the balcony watching me stroke. So you can imagine my shock when I heard a felt a soft hand touching my shoulder while still looking at my neighbor on the balcony. Apparently it wasn't just the neighbor that had seen me but her girlfriend that was over drinking with her on the balcony. Her girlfriend wasn't quite a cute as her but apparently was twice as horny. She had me move over to the loveseat closest to the window to give my neighbor a better view. We ended up putting on a nice little sex show for my neighbor. She watched as we went down on each other and started to fuck. Her friend was quite vocal and I wondered if anyone could see or hear us from the sidewalk below. I don't think my neighbor realized what I had started to do to her friend at first until she moaned "fuck my ass baby" At that point she covered her mouth giggling in shock that her friend was letting me fuck her ass with her watching. It all ended as I pulled out and came all over her friends back.

Still don't know that friends name and haven't spoken to my neighbor since.