Since the discovery this has been an recurrent source of Fantasy jacking memories!
Several years ago, I was always putting Garden Displays in the County Fair in the Garden Section. While there I had to use the restroom, and if you have ever been there, the older restrooms are separate wooden Buildings with troughs and wooden booths.
One evening, after watering my display, I went into the restroom adjoining the Garden Area and two of the three booths were occupied. I went into the only one that was open. Sitting there as my eyes adjusted to the darkened space, I noticed a small peep-hole drilled into the wall.
I cautiously looked thru the hole, and noticed a guy sitting in the stall next to me stroking on his hard cock; rather leisurely I thought, until I looked across to the opposite wall, and there was a large hole that he was peering through. (I later found out this was called a Gloryhole).
He put one finger into the larger hole, and suddenly I heard someone shuffling to their feet in the stall next to him, and a rather nice looking Hard-on with a large head on it was being pushed through the hole! The guy next to me reached out, and slowly started to stroke it thoroughly.
It wasn't long before he had slipped it into his mouth and was bobbing his head on it! Well, at this point, I was as hard as a Rock, and had been unconsciously slowly stroking myself, watching this all unfold. I was absolutely flabbergasted (!) right here in front of me someone was sucking a hard Cock. Right here in front of me someone was getting their Cock sucked!
I heard deep breathing coming from two stalls away, faster and faster, I knew someone was gonna blow their wad, a Moan from them, and I lost it!! I was coming all over the place...On my hands, on the floor, on my shirt, splashing onto the wall, WHOOOOOO what a cum, and what a Mess...I hurriedly cleaned up as best and as fast as I could. I had to get outside and see who came out...who got sucked off at the Fair, what was going on.
I sat on a nearby bench, at the other end a pretty mid 40's woman was sitting also. Soon, a Guy came out, all Red in the Face...I knew why, 'cause he had just gotten his rocks off in someone else's Mouth...He walked over to the bench, put out his hand, and He and the Gal sitting on my bench got up and walked away Arm in Arm...
Needless to say, that was not my only trip to that particular Restroom for the duration of the 'Best 10 Days of August'!!