Four years ago, my wife and I had been out for the day. On the way home Tish said that she was dying for a pee. I told her to hang on as there was a lay-by that has some toilets. We just made it and she rushed into the ladies. I decided that I would also make use of the conveniences before traveling on. As I stood at the urinal I heard movement behind me and as I finished and zipped up I discovered that there was a man with his cock through a glory hole and another man the other side of the panel sucking his cock. He should have fastened the door, but it was slowly opening. Then I noticed that the cock was a big one, much bigger than mine. Then as I was washing my hands the man sucking the big cock scurried off out the toilets and I heard his car pull away. The other mans cock was still through the panel. When I got back in the car, Tish was already there. I said that I bet she couldn't guess what I had just seen. Then after she pressed me I told her of the two men and that the one with the big cock was still in the toilets. She was intrigued with what I told her. She had me go back into the toilets to see if he was still there. I knew he was as I hadn't see him leave the toilets, but when i entered the toilets although he was still there his cock was no longer through the panel. I reported back to my wife. She said she wanted to see for herself. We both went to the gent and Tish went into the stall. Hearing that someone was there the cock came back through the hole. Tish was sitting on the toilet seat sideways and started to wank the cock. Then someone else was coming towards the toilets and I signaled to warn Tish. She quickly closed and locked the stall door. The man urinated and then left. He didn't even wash his hands. I tapped on the door and Tish opened it again. By the spit on her face it was obvious that she had been sucking the big anonymous cock. She went back to sucking it as I watched and kept guard. The man obviously had good stamina as as far as I knew he hadn't cum with either the man or with Tish. Tish was fingering her own pussy having pulled her panties to one side. This went on for three to four minutes when Tish stood and turned and backed herself onto this anonymous cock and started to rock herself deeper onto it. The man suddenly came and Tish had his cum in her pussy. Then the man was dressing. Tish locked the door and the man soon left. But before I could get Tish out of there another man was walking towards the toilets and I had to tell Tish to hold tight as there was another man about to enter the toilets. The man went straight into the stool and closed the door. Unbeknown to me Tish was looking through the hole. She watched as the man finished and wiped his arse, flushed and pulled his pants and trousers up. Trish must have moved or something because he suddenly realized that he was being watched. He didn't bother to zip up, instead he stuffed his soft cock through the hole. Trish undid the door again to let me see her sucking a second cock. He was soon hard, but no amount of sucking was getting him off. Again Tish stood and backed onto the strangers cock. I was shocked she wasn't wearing her panties. I later discovered she had stuffed them through the hole for the first man to keep. He lasted a long time before he also dumped his load in my wife's pussy. Again Tish locked the door until the man had gone and then she quickly left the toilets. Back in the car I fingered her pussy she was soaking the car seat as a mixture of two men's cum and Tish's own juices seeped out of her pussy onto the seat. I drove as fast as I could within the limits to get home. Tish had never ever done anything like this before and all the way home I had a painfully hard cock. We didn't even get up the stairs before I turned her and she was halfway up the stairs as I sucked her pussy, sucking out the cum in her. Then I slipped my own cock in and replaced theirs with my cum. We fucked twice more that night. Since then Tish wanted to try something else like our night at the toilets. I told her I would think about it.