I worked at an old Subway in a strip mall on the rougher side of town. It was hardly ever busy, and even when it was busy, there were only like three customers in the store at a time. It certainly wasn't the most interesting job out there, but I was able to spend most of my time watching movies or catching up on homework. Whenever I was trying to avoid doing work or just wanted to sit down for a bit, I went to the bathroom and wasted the time away.
I was always good about locking the door behind me. I tried to avoid awkward situations whenever possible, and having someone walk in on you while you were taking a piss certainly counted as an awkward situation. One night, though, I must have forgotten. I had pulled an all-nighter the day before, studying for an exam in Uni, and I was sleepwalking through my shift. As I plopped down on the toilet, I pulled out my phone, brought up Literotica, and started scrolling. This wasn't the first time that I would be jerking off at work, and it wouldn't be the last. The easiest and most interesting way to kill time on a slow evening was to pet the old one-eyed snake.
I pulled out my dick and started rubbing it slowly. It was of average size and girth, as far as I could tell. The only other ones I'd seen were in porn, and those were hardly a reliable reference. I leaned against the back of the toilet and tried to make myself comfortable.
As I began to pull up one of my favorite stories, the door to the bathroom burst open. My tiny little Subway only had one bathroom, and, as you may have guessed, I had forgotten to lock the door. A girl about my age tucked herself into the bathroom and locked the door behind her. She was on the smaller side but was quite an attractive woman. Her back was turned as she locked the door, giving me some time to try to stuff my dick back in my pants, but it seemed as though my brain was short-circuiting. As she turned around, I gulped but couldn't force myself to move.
"Oh!" she exclaimed, blushing. "I see I've interrupted you."
"Uhhh," I mumbled intelligently, still not able to move a muscle.
"I really need to pee," she told me, blushing harder. "Would you mind if I helped you speed this up a bit?"