I was in college, at a local Uni in Chicago... it was in a very old divinity school building in the basement... as it turned out, I stumbled onto a glory hole. One day I was having coffee with friends and I needed to go to use the bathroom. I took a break from studying and went to the bathroom. I walked in and heard some shuffling and expected to see someone moving, but nothing. I walked over to the urinal then I begin hearing noise, at first I couldn't tell what it was and then I remained still and heard voices and finally "I am going to cum" and "Yes, I want to swallow it". Then I was like, they are having sex! I bolted out of the bathroom and continued to study and realized I had a hard on, and kept thinking about the noises and wanting to have sex, and sex is just a few steps away... About 10 mins later, I went back to the bathroom and immediately went into a stall and saw two holes at different heights and I didn't understand what it was or what was going on. Then this big cock comes through the stall wall. I didn't know what to do. I started asking questions, and didn't get any response and I finally got it. No talking. I started stroking and began to lick and suck, then the cock disappears, then I see a tongue so it is my turn! Then I stick my rock hard uncut cock through, boy was it good. At that time it was the best oral I ever had.