Mika hangs suspended behind a one way window, looking up at the urinal that leads straight to his mouth. He sees every person who uses him, but no one is aware of him. Again and again they pee into his mouth, not knowing he's there. They all seem to be around his own age, and some of them seem familiar. It wasn't until the fifth person to make him swallow their piss that Mika realizes where he is. They're all students from his school! He just wasn't used to seeing the school bathroom from this angle.
The boy he recognized was one of the guys who used to always bully him. He was one of the reasons Mika had wanted to disappear. He'd hated how they would dunk his head into the toilet between classes. Now they literally peed in his mouth, and there was nothing Mika could do about it.
At first, Mika had done the sensible things for someone being bullied. He'd confided in his teacher. It may not be the bravest thing. He'd felt like a snitch for doing it, but his teacher had been the only kind person in his life. He'd been understanding and listened to Mika confessing all his secrets. Even the fact that Mika thought he might be gay. His teacher had actually recommended him the gay forum to Mika where he'd come into contact with "Forever". He'd helped Mika set up his account even. He'd been so kind. His teacher was the only person who knew about the account. Maybe there was hope after all! If his teacher knew about the account then he could tell the police and they would be able to track Mika down and rescue him. It was a long shot, but just the hint of hope kept Mika from loosing his mind as the days went by.
Strangely, no matter how long he remained there, he never seemed to get hungry. There was a large tub of some kind of liquid in here with him which connected to the hose that ran into his mouth. Mika realized eventually that every time someone pissed into his mouth, a small amount of liquid from the tub would trickle in with the piss. It had to be some kind of nutrient paste to feed him. It seemed to be enough to last months on end.
A surprising amount of students who actually used the urinal to masterbate into. It wasn't just piss Mika had to swallow. Some groups actually jerked off together. A group of three of Mika's bullies jerked off together almost every day. They stood together chatting about the different things. One of them started talking about that looser they used to bully. What's his name. They were talking about Mika and didn't even know his name. Soon they wouldn't even remember he ever existed. They seemed to think he'd just changed school or something. No one cared.
Finally, after a full week trapped as a helpless urinal, Mika finally saw his teacher. His hope. His salvation. The man didn't see him though. Or did he? Mika could almost swear that his teacher was looking straight down at him. As if he could see him. And he was smiling.
Mika's teacher looked once around the bathroom to make sure no one else was around, then pulled out his dick and began to piss a slow trickle as he began to speak.
"I hope this is everything you dreamed it would be, Mika." Mika's heart raced as his teacher's urin ran down his throat. Fear and panic and dread filled him as he began to realize what was going on. "Because you're not going anywhere." His teacher was his master. The anonymous user named "Forever" who had kidnapped him!
"Your parents are in my office right now, having a meeting. I've convinced them and the police that you simply ran away in a rebellious phase. After all, they know well that you often confided in me. I'm free to make up all kinds of confessions on your behalf. I've told them you'd confessed to me that you dreamed of becoming a whore. That all you wanted was to get fucked by strangers all day and earn enough to make a living to get fucked more. Oh, how I tried to change your mind, I told them. Your father was furious. I think they're ready to disown you. Don't think they even want to find you. Isn't that great? They're even thinking of moving away from any memories of you."
A tear ran down Mika's cheek. All hope he had was just drained away, like his teacher's piss into his mouth.
"I made sure to give your father a big glass of water in the office. I'm sure he'll stop by to use your mouth before he leaves." Mika tugged at his restraints, but it was useless. Then his teacher began to masterbate. He came right into the urinal. It ran straight into Mika's mouth, letting him taste everything. "Hope you enjoyed that. Now keep doing a great job as a urinal." With that, Mika's teacher left the bathroom.