I'm not married but I've been with a married guy before. I used to use Grindr and there was this guy who always had a blank profile but it had his name on it, so I started chatting to him and it got to the picture swapping stage. I sent him a picture of myself and, in return, he sent me a picture of the footballer Jack Wilshere. I, obviously, recognised him and knew it wasn't actually a photo of him, so when I questioned it, he explained that he had to be "super discreet" because he was married. He did, however, send me a picture of his body and of his cock (it's the biggest cock i've ever seen).
To top it off, he actually recognised me from where I work (I work in retail) and he said that he comes in quite a lot with his Mrs and kids. So, for the next few weeks we continued to chat, every time I saw a male customer with kids I would question whether it was him or not, but every time he told me he hadn't come in that day. It finally got to the stage where he made himself apparent. He came up to me as I was working without his kids and made small talk with me. During the conversation, he grabbed his package a couple of times, and me knowing what the jeans were concealing got very horny, very quickly. He carried on walking around and I decided to go to the bathroom to see what might happen.
I stood at the urinal (of which there are 2) and pulled my cock out, absent mindedly stroking it. Within the space of 30 seconds, he followed me in and joined me. As he pulled his meat from his boxers, I was pretty gobsmacked at how big it actually was. The pictures hadn't done it justice. Next thing I know, his hands are all over my ass, trying to reach down my trousers to find my hole. He bent over to suck rigid cock, and I returned the favour in between kisses. All the while, I'm a bit worried about getting caught as any colleague or customer could walk in.
Turning around, I gestured to one of the cubicles and we both entered. Inside, we sucked each other a little longer before he whispered in my ear, "I want to fuck you." At this point, i was feeling pretty nervous because I'd never taken such a massive cock before, and I knew that I wouldn't be able to do so quietly. But, before I could protest, he's yanked my trousers and boxers down to my ankles, spun me around and bent me over. He must has spat into his hand as well because the next thing I feel is a sudden warm wetness around my hole, as his fingers probe my tight entrance. First one finger, then a second and finally a third. The next thing I feel is his tongue lapping at me, making me even wetter, spitting more lubrication inside me. He stood back up, clamped his hand around my mouth and slowly started to push himself inside me, I let out a fairly loud gasp as he first breaches the hole and then start to breathe deeply, fighting the urge to cry out with pain.
After about 2 minutes of this, he's fully inside me, all the way down to his balls. Without removing his hand from my mouth, he starts to thrust pretty hard inside me, his other hand wanking my still solid cock, his own cock going like a jack-hammer inside me. Within a few minutes, I feel his huge load release inside me and with it, mine releases over the toilet seat. We remain like that for minute, just catching ourselves, before he pulls out of me and I feel some of his cum escape down my leg. He whispers, "Sorry I didn't last very long, I'm not used to fucking something so tight." And before I know it, he's opened the cubicle door and slid out. I'm then left to clean up the mess my own load made all over the toilet, but I decide to leave his cum as it is, slowly sliding down my legs..
We've not had the chance to hook up since, but I'm hopeful.