One night I was walking home from work and I went past a good buddy's house on the way. I noticed the light from his bedroom tv was on so I walked up to the window and knocked (it was a ground-floor window) to see if I could get him to come outside and smoke a joint. The window was shut and he had a really cheesy 1970's orange curtain which was open just a bit. I didn't get an answer, but the bedroom door was open to the kitchen in his house and the kitchen light was on so I waited there outside his window for him to get back into his room. Well, when the bedroom door closed and it was dark in the room aside from the light from the tv, I quietly went to knock on the window again as to not wake his parents. Before I actually knocked, and without thinking about it, I just looked into the open space in the curtain that allowed limited view into the room. I had to stand up tall to the window to see his bed, but before anything could register in my head about what I saw, there he was pulling his dick and balls out of the crotch of his underwear and started playing with his dick. I gasped loudly for some reason, and my heart jumped in my throat instantly, and he must have heard me because he stopped suddenly and hesitated, then approached the window quickly and opened the curtains. I had ducked down beneath the window and had my back against the house in the dark. I immediately went home.
About 20 minutes later he messaged me on the computer and asked if I had been outside his window just a bit ago, and of course I lied and said no. He told me he had asked a couple other people and he could have sworn there was someone outside his window. He hadn't told me what he was doing when this happened, so i called him and asked him about it. I asked him why someone would be at his window at night. He said he was lying in bed watching tv and heard someone at the window. I said, "It's a good thing you weren't naked." To which he replied, "I kinda was."
Anyway, the whole thing was an unexpected turn on. This idea repeated itself when another really good friend started bragging about how big his dick is. I always said, "Why don't you prove it for us then?" but he would just turn red faced and laugh to himself and he would never show us. So my birthday came around and I had asked for a camera watch, and if you don't know what that is it's a regular watch that tells time but it has a camera in it and you can take pics and vids with it, so I went to my good friend's house for a solid week before he was awake to wake him up and then quickly slip into the bathroom to "accidentally" leave my watch on the back of the toilet while I washed my hands. Well, after I was done he really needed to go to the bathroom too so I gladly obliged and went to his living room. He actually brought me the watch a couple times. Anyway, he wasn't lying about how big he was. And I'd be lying if I said my heart didn't stop when I saw the videos, and that my wrist wasn't sore for the next month while I watched them! I also found out he is uncut and his dick is really nice, and the vids showed him in good light. I never told him and I felt guilty as hell and never told him about it. As wrong as it was at the time, I eventually realized that this was not cool and I thought about how I might feel if someone did that to me, and then I thought if I had no clue it had been done to me I could be clueless about it so I got ever the guilt. The vids have since been deleted.
Anyone else out there have similar experiences?