Until that point in my life I only knew about glorholes from porn magazines. I'd had never seen one or used one yet.
As soon as my ass touched the toilet seat the guy stuck his finger thru the hole and beckoned me to give him my cock. The whole event was so exciting I was already as hard as a lead pipe so I didn't need any further encouragement. I stood up and fed my cock thru the hole, feeling his warm tongue licking the head. Pretty soon his lips kissed the tip of my dick and slid down its length. I fed him the entirety of my hardness, which I gotta say at that point was pretty damn big. He sucked it gently and expertly, up and down my shaft with his lips and twirling his tongue along the sides of my shaft.
I was afraid I was going to explode too soon, so I pulled back, just leaving the tip for him to lick thru the hole in the partition. But as I pulled back I fetl a firm pressure against the head of my dick and he pushed his jumbo thick dick against mine, forcing my cock down as his tube shot through the hole like a torpedo. Jesus he was hung! I had seen a couple of well endowed guys in the showers after baseball but never had I seen a cock this big, not even in the best porn that I had been able to procure in those days. This guy's cock was easily 9 inches long and close to 3 inches in diameter. It's a good thing the glory hole was big or he'd never have been able to make it through.
So there I was staring at the biggest throbbing cock I had ever seen in real life. A giant bead of precum rested in his ample piss hole, catching the light from the bare bulb above the stalls. I took a few seconds just to admire the thick veiny monster in front of me. Thinking back on it, I doubt I was pausing to admire it as much as I needed time to figure out how I was going to get that thing into my inexperienced teenage Freshman mouth.
I dropped to my knees and licked his hot mushroom head, sliding my tongue into his piss slit to suck up the sweet saltiness of his freely flowing precum. The taste of the precum, my tongue on his hot manhood, and the soft low moan I could hear from the other side of the stall wall combined to transport me to a magical place that I'd only fantastized about. Until that moment when my innocence was given over to the most stunning cock of all cocks, I had only read about gloryholes and seen Tom of Finland illustrations. In those days there was no Internet full of pornography, there were not even gay porn magazines, at least none that I had seen. The only gloryhole info I had was what I'd read in Playboy and Penthouse "reader's letters".
I slid my tongue and lips down the side of his heavy veiny shaft, conviced there was no way I could take him down my throat. I felt the response of his massive meat as it grew even harder and he pushed it further thru the stall wall. He grunted as he thrust. The grunt and thrusting dick felt like a command for me to man up and suck that gorgeous cock. Sliding my tongue up the bottom of his shaft I worked my lips up and around the head and slowly started to take him inside my hot eager mouth.
Jesus, he was huge. And sweet and beautiful. And I wanted to feel him all the way down my throat. As he slid to the back of my mouth I gagged and backed away a bit, then adjusted and tried again. Over and over I took him to the back of my throat but I couldn't get that enormous head down my throat no matter how hard I tried, and oh God did I try! But I could hear and feel the effect of my attempts to deep throat him. He moaned louder and his dick pulsed thicker and thicker, the precum flowing down my chin. Then BOOM his jism exploded in hot thick delicious streams, down my throat, filling my mouth, running out of my lips and dripping from my chin. His jumbo cock shot a load worthy of its size, shot after shot of white hot man juice.
He was ultra sensitive after he shot and pulled his cock back through the hole. Putting his mouth to the hole he whispered loudly, "give me your cock baby". My dick was in his mouth in a flash. As he had earlier, he sucked me expertly, his tongue wrapped around my shaft like a snake even while he swallowed me as deeply as I'd ever been taken. I was already about to pop when I gave him my cock, so it took only moments for me to explode. Thank God no one was around because I shouted in ecstasy when my load released. I could feel him swallowing with each wad of cum that I blew, the most cum I'd ever shot in my short lifetime. There were easily a half dozen contractions before my dick finally relaxed and let the remaining drops of cum ooze out onto his eager tongue.
Lost in a haze of utter joy and intense guilt, I withdrew my cock, pulled up my briefs and jeans and was starting to leave the stall, pretty much wanting to flee the scene of my first major cocksucking sin. I had long fantasized about the pleasures of gloryholes but with my strict religious upbringing I'd never dared to seek one out. The reality of the experience was overwhelming in every emotional dimension possible.
As my hand reached for the latch on the stall I heard him "pssst" at me, as he slipped a bit of paper through the hole. I took it. It said, "be here, same day, same time, next week."
And that was not only my first semester of college but the beginning of my first semester of what became a college journey of awesome gloryhole fun.