My fascination really began with my ex. I had always been turned on by cum, but the ex shot huge loads. It really turned me on. Sometimes I would let him shoot it all over my face and chest, but usually, I would (try to) swallow it or let him shoot inside me. It was much easier that way, otherwise it was a bitch to clean off the walls, ceiling, sheets, curtains, etc.
Another hot cum story. I was at the adult bookstore one day, talking to an older guy who had an incredible body and dick. He often would make arrangements to meet guys at the bookstore, so I knew that he was waiting on somebody. 10 minutes later, a very hot younger fireman (wearing his fireman t-shirt) walked into the booth area. He was very cute and his tight fireman t-shirt was showing off his muscular body. He went into a booth and before I realized what was going on, the older guy went into the booth on the other side of the gloryhole. I was so turned on by the fireman, I went into the booth on the other side which had an 8" gap at the floor. I bent over and watched (what I could see) as the fireman turned towards the gloryhole and obviously put his dick through the hole. I saw the older guy drop to his knees and suck him off. It was incredible to watch and really turned me on. I then heard the fireman start to moan and he stopped moving before he finally stepped back, pulled up his pants and left. But right before he pulled his pants up, the condom he had been wearing hit the floor, right in front of my face. I quickly grabbed it before somebody came into his booth. It was still warm, I could feel the saliva of the older man on the outside and there was quite a bit of cum inside the condom. I smelled it and decided what the hell. I opened my mouth and poured his cum into my mouth. It tasted great. I swished it around my mouth before I swallowed it. I never saw the fireman in there again, but I still remember his cum.