This story is relatively tame compared to some of my other stories, but it's a quick one I think is hot.

My senior year I was working on my thesis and was subsequently given a key to our labs and classrooms so I could go work at anytime of day or night. I took advantage of this and would often be in the lab or writing my thesis at all hours of the night as I worked best then. There was a guy my same year who also had a key and often we would work in the same classroom or lab so we could have someone to commiserate with. He was pretty average looking, about 5'10, black, average body not in shape but not fat or anything either. I tend to not fuck people in my major as a general rule just to keep things from getting messy so it took a couple months of the first semester for me to even consider the fact that I could be fucking him. He was also very respectful and never made any attempts.

However, one night, we were both a bit distracted and were more focused on shooting the shit than our respective work. My pussy being my pussy decided it wanted attention. I began steering the conversation towards slightly more sexual stuff and before long we were sitting next to each other, work completely abandoned. After dancing around the issue for a bit, there was finally a moment of pause where we stared at each other. I bit my lip and then he pulled me in for a kiss. It was a bit ferocious and clothes began flying off. (I never wore jeans to go study again after this because they were annoying to remove lol)

We ended up hitting the floor, and he went down of me for a few moments before he started fucking my pussy missionary. His cock was around 6.5" I think? I never measured or asked, but it was definitely above average without being ridiculously sized. I was holding on for dear life, his hips were slamming into me and I was not holding back my moans.

He then flipped me onto my stomach and shoved my face into the floor. Started calling me a slut and this that and the other which I wasn't expecting from him but definitely loved. I ended up cumming on his cock in this position and squirted a bit on the floor. After I squirted, he picked me up and bent me over one of the tables and grabbed my hips and fucked me as fast as he could before he finished inside me. We both lay bent over the table panting for a moment before he slid out and his cum slid out onto the floor. I thought about licking it off the floor but decided I wanted to leave it as I was having class in there the next day and wanted to see if people would notice.

Next day it was still there in a puddle, but as far as I am aware no one said anything about it. We had a very casual relationship for the rest of the year although we talked about actually dating, it never really happened. We would just fuck in the science building 1-2 times a week and were happy about it. He actually eventually accidentally got me pregnant, at least I think he was the one, its hard to tell with all the loads I was receiving at the time. Thank god for abortions!