I'm a forty year old married guy living in a small Midlands town. We have experimented in the past with various types of swinging, and it has given me a real taste for other guys, especially those with big cocks. I have had a few gay experiences previously, mostly when travelling into Birmingham city centre. I have been sucked off by men in the toilet of an adult cinema there, but the best place was a pub toilet with a large glory hole in the partition. That was where I got my first taste of sucking big cocks. One afternoon I was sitting in the cubicle masturbating. A guy came into the next cubicle, and I watched him through the hole in the wall. He was about fifty, and pulled out an enormous cock, around nine inches long but really thick with a big fat head. He could see me watching him, and didn't waste any time in putting his cock through the hole. At first I was nervous - I licked around the head of his cock, and then started to gently suck on the tip. I could taste the precum and watched as his cock swelled even larger. I was beginning to enjoy it and tried to take more into my mouth, but this was difficult as he was so big. After a few minutes, I could feel his cock throbbing in my mouth, and he started to ejaculate loads of spunk into my mouth. We both cleaned up, and he left, but I decided to stay put to see who else would come in. The next guy was an Asian chap. By comparison, his cock was small, and when he put it through the hole I has able to take the whole length of it into my mouth. Pretty quickly he began to come, and I could feel his spunk shooting at the back of my throat, so I swallowed it all down and sucked him dry. I stayed in the cubicle for over an hour, and there was a steady stream of men coming in, either wanting to suck my cock, or wanting me to suck them. I think I probably sucked eight or nine cocks that first day, of all shapes and sizes.