I love the thought of a guy jacking off over me... it's a major turn on
I would love to catch someone... the thought of it is so hot!
I remember when I lived with a friend she said she was sure she caught her neighbour wanking at his window while she was out in the garden getting the washing off the line and I found that so hot and exciting I went and masturbated in my room soon after.
And I thought about it often while masturbating.. I even thought about putting a note through his door telling him I would be masturbating in the garden at a certain time so he could watch and jack off.. but I was worried it would get into the wrong hands or something..