(feel free to PM me with stories of your own)
It was getting late. The librarian was announcing the library closed over the speaker. I had intended to visit the restroom beforehand…I got a little carried away. My pubic area felt tight with urine. I was surprised with how close I felt to completely losing control, right there in the library. Right over the carpet. I took my bookbag and headed over to the door.
I wanted to bolt, but I was so seriously full that I had to will myself to take slower, smaller steps. I got to the elevator…3 stories down. I anxiously closed my eyes as I waited for the door to close.
I heard the doors begin to close, and I relaxed slightly. Then I saw the unfortunate sight of a man rushing toward the door.
He had a bald head and goatee. He was tall and buff looking even through his long sleeved shirt. At any other time, I would have been overwhelmed with lust. Instead, I feared the very real possibility of failing to last the minute it would take to reach the bottom floor.
The doors took forever to close.
"You're a beautiful boy," he said in a gravelly voice.
Before I could react, he cornered me in the elevator. I felt his crushing weight on my chest, and his hand fumbling with his fly.
He took a step back to pull out a key to stop the elevator. His beautiful cock was pointing through his fly. His foreskin covering half of the thick head, piss slit dripping and gaping.
I couldn't think.
Suddenly, I felt his hand roughly unbutton my fly and yank my pants down. He smiled at me coyly.
I died inside. I couldn't hold it any longer. His face shot in the direction of his own belly, where my cock had begun to spray.
He jumped back, completely shocked. I tried to turn toward a corner, but he grabbed my shoulder, forcing me to continue to pee all over him and the elevator.
After an intense few seconds, I was able to stop my stream, but barely. I noticed his cock was still hard. He was stroking it, one hand on my shoulder pinning me to the wall.
"It's only fair" he said. A pause…maybe asecond or two, and I felt it. Warmth spreading over my abs and cock. I couldn't see, but I felt it dripping off of me.
This time, very softly, no longer sternly, he tells me to "go ahead and finish."
My cocks let's go again. As I piss, he pisses too. I feel the draft on my wet erection. My penis is tingling, my erection twitching as the stream goes on and on. He continues to piss. He's pissing while his hand jiggles his erection.
My stream has stopped, as has his. He has his other hand on my dick now. I cum first, I can't help it. Another forceful spray. Spurts of cum hit him in the cock and wrist. He lets loose immediately after. I see his thick rod release an enormous amount of semen. It is somehow everywhere, especially me, and keeps going an impossibly long time.
We are absolutely soaked. I have no idea what to do next, but I don't particularly care.
Source: reddit.com/r/sexystories/comments/3m0prx/19m4m_nasty_piss_play_humlreluc