A couple of years ago I was staying at a hotel for a business trip. I got done with work early and started a nice slow stroke session... after about a half an hour, I hear a knock at the door. I think - there's no way I'm answering - but I did get curious (I thought I would just peek thru the security thing in the door to see who it was). So as I am pulling up my boxerbriefs to head to the door (it was a 2 room suite - I was on the bed in the back) I hear "Guest Sevices..." and the door opens.
I know I was like a deer in the headlights... I just stood there looking at this 30 year-old guy in a suit staring first at my blushing face and then down at my huge dick barely covered by my underwear. There was no doubt what I was doing (the laptop on the bed another clue, as if he needed one). He says "um...sorry..." and leaves.
I pulled on some gym shorts and a shirt and went out into the hall to see why he came into my room. He told me that I did not close my door all the way and so he was just checking it out. He apologized again and that was that. I often wonder if he told others what he saw. By the way, I did not leave the door open on purpose - it really was an accident!