A few years ago my wife Diane was in another town on business during the summer. She was in a hotel with a room that looked onto a car park. However, she could only see the bottom half of anyone in the car park.
On her second night in the hotel she had a bath and then then lay naked on the bed. She could see people coming and going in the car park and, feeling really horny, decided she was going to masturbate with her curtains open.
She started to finger herself and, looking out of the window, could see that two men were standing in the car park, obviously looking at her on the bed. She then made it obvious to them that she wanted to be watched by pulling the curtains open as far as they could go. She lay back down and proceeded to finger her hairy cunt whilst stroking her breasts.
The men were watching her side-on and she put on a show for them, raising her hips off the bed and furiously rubbing her clit. She soon had a glorious orgasm all the while watching the two men who were rooted to the spot. After a while she closed the curtains.
When she told me about it on her return I was as excited as I have ever been and had her tell me the details over and over again.