Ah, well!
There was one time my ex-fiance and I went to a sex shop and paid to get into the back rooms, there was a common area with a couch and some booths--we were too shy at the time to use the couch (I was 18, almost 19, and hadn't done much in public like that yet) so we went into a booth and I gave him a blowjob. Next thing I know, I hear a deep, guttural moan from the next booth over. I look over, mouth still around my ex-fiance's cock, and lock eyes with a pervy old man through a glory hole between the booths. I went suuuuper flushed with embarrassment but my ex's hand pushed me further down his cock and he said "good boy~" so I just had to keep going. It was fuzzy, but I heard him ask the old man if he liked what he saw, and the old man's eyes went smiley through the hole in the wall. He stood and showed me his cock through the hole and I went to stroke it, but my ex stopped me and said it was only for show today, maybe next time. Then he pushed me farther down until there was no more to take, made me choke and gag on his cock till I was seeing stars, and when I was so out of breath I almost passed out, he pulled me off and lowered me to the floor close to the wall. I watched the old man cum, the head of his cock through the hole while he stroked the rest. His cum just barely missed my face~
We ran into him when we were buying nipple clamps before we left, he stood behind me a very creepy level of close to me and I wish he would've reached out and grabbed me, but alas, he did not 😔