when I was about 15 or 16 my sister almost walked in on me. I was just at the climax when she walked up the stairs...
I still don't know if she knew or not. I think there are many moments when I could have been 'discovered'. when I used to work at the bank, I would sometimes have to excuse myself to go to the washroom and masturbate.
Sometimes there were other people in there sometimes there werent. Needless to say they may or may not have known what I was doing in the next stall...
Nowadays I'm not so adventurous.
