I've always considered myself to be 100% straight until two episodes that happened within the same week. The first was a meeting that I had with a swinging couple in Leeds that I'd got talking to and arranged to meet up, I said i was totally straight but found myself really turned on whilst seeing the guys big cock being sucked by his wife. It was only when I was going down on her that i felt a mouth close around my cock, it was electric but I went with it. I didnt play with his at the time but later on in the session he was fucking his wife and I got my head down to suck on her clit whilst he was inside her. At first I thought it was an accident but I wasnt sure when his cock came out of her pussy and on the thrust in, pushed in to my half open mouth. As quick as it went in, it came out again and back into her pussy. Two days later I was traveling down south and found myself in Bristol and kept thinking about this guys cock that had pushed its way into my mouth and found it was getting me hard thinking about it. I'd heard of male only saunas before and looked up to see if there was one in Bristol as I was staying over the evening. As luck would have it, there was a place which was quite well known and only two mins from my hotel, so I jumped into a cab, got to the place, paid my entry and membership and the next thing I know is I'm standing there in my towel, walking around lots of little rooms with floorboards creaking. There were a couple of little booths on one level and then a few steps down some more booths facing them, people were coming and going from the booths so i thought I'd take a look. As it worked out the people in the higher booths would stick their cocks through a gloryhole for the people in the lower booths to suck off without needing to be down on your knees... Brilliant use of a split level room. Now so far I'd only had one cock accidentally in my mouth so wasnt about to throw myself into this too quickly. I saw a few different cocks coming through the holes in all shapes and sizes but nothing that really lit my fire, I'd give them a little wank and after a minute or so when they realised i wasnt going to suck them they'd pull out. I went for a wander downstairs and saw this guy in the shower soaping up, good hygiene i thought and OH MY GOD he had something resembling a bat between his legs, coupled with the fact that he was fairly skinny he looked enormous, now I'm 8 inches as my profile and couples i've met on here will vouch for but this guy was huge!!! I smiled and nodded my obvious approval and headed back upstairs, still lacking the confidence I've since gained. I went to the doors with the split level booths and stood by an empty door and waited, when I saw him come up I popped into the booth and made sure he saw me going in then waited. I didnt have to wait long as I saw the door to his booth open and he was walking in to the booth. My heart was beating about 200 to the minute and my cock was so hard it could burst. He calmly dropped his towel and this enormous and stunning cock was moving towards the hole. My hands were shaking and my mouth was almost chattering. He was still semi soft when it came through the hole and I put my big hand around his velvety cock and pulled back his huge foreskin, he smelt lovely and soapy. His foreskin moved back and forwards with ease and as I took a deep breath I opened my mouth and then let his cock slip inside, well the truth was I had to almost stuff it in my mouth as it was so thick. I thought I was going to pass out with my heart going as quickly as it was. I was able to use both hands on the cock and still get as much into my mouth as possible, I managed to get a rhythm going but my jaw was really starting to ache. I sucked for all I was worth and worked my hands too... I felt him start to buck his hips quickly and thought holy shit he's going to cum, i pulled it out of my mouth, just as i did the first shot of cum hit me in the face and as I gasped, the second shot hit me in the mouth and I got a taste of cum, my god it was salty but not too bad. He seemed to cum lots and eventually started to soften up. I popped it back in my mouth and let him softed up, it felt amazing!! Before he left my mouth I managed to apply the finishing touches to my own cock and sprayed cum all over the booth, god I was spent. I swapped numbers with the chap and then went on my way, was I officially bi??? I think so.