Karyn felt the sensation of relief so strongly for a moment that she barely realized that she'd just wet herself in the middle of class. And when she did come to her senses and notice that she was sitting in a puddle of her own piss, it didn't cross her mind that Jon might have been behind it because, after all, she'd had to pee for hours now.
Once it hit her what had just happened, she became horrified. So far, no one around her seemed to notice, but she knew it wouldn't be long. How could she get out of class without anyone realizing what had happened? She determined that her best course of action, provided the pee didn't start smelling too bad, would be to wait it out and leave after everyone else. She looked down to see a large dark spot on her pants where the pee had stained, but she didn't notice any pooling on the floor or anything, so her plan should be relatively safe.
Meanwhile, Jon decided to have a little more fun at Karyn's expense. He just wished he could see Karyn right now to see how his payback was coming along, but he could feel the dampness on her pussy. It was a little uncomfortable, but not nearly as uncomfortable as Karyn was feeling, so Jon thought his slight discomfort was worth it.
Jon wasn't done yet, though. He had come prepared to torment Karyn further. Still in the bathroom stall, Jon pulled his phone out of his pocket and began looking at porn, feeling Karyn's pussy begin to get way in an entirely different way. The feeling was distracting, but Jon persevered. He began to stroke his numb dick, feeling it harden under his hand. It was a strange and unnerving sensation, almost like what he imagined giving another man a hand-job would feeling like, but, again, he kept going. When he figured he could go no further without making the penis come, Jon stopped. Then, fighting all of his instincts, Jon punched himself in the nuts. Not too hard because he hoped he would eventually regain use of his equipment, and he didn't want it permanently damaged. But he did want Karyn to know what it felt like. He felt a wave of relief when he didn't feel the nauseating pain experience had taught him to expect. Finished, Jon pulled up his pants and returned to class.
Across the school, Karyn was having a difficult time. Though still nervous about someone finding out she'd wet herself, she had managed to convince herself that she was safe for now. There were only ten minutes left in class, and Karyn thought the pee wouldn't stink too much in that amount of time. But even as she was mentally calming herself down, she began to feel a pleasant sensation in her crotch, one she didn't really understand. It felt like something was growing down there, and it felt amazing. But, looking down, she didn't see anything. That's when she realized what was going on. Jon! she thought. She began to suspect he was the reason for her wetting herself. But even though she knew she should feel angry with him, the pleasant sensation in her crotch was becoming incredibly distracting. She could barely think straight, and she found herself breathing heavily.
Then, just as she thought she could take no more, she felt the most excruciating, gut-wrenching pain she'd ever felt in her life, causing her breath to catch as she bent double in her seat. As she slowly recovered from that pain, she felt an unpleasant, slightly painful rubbing sensation at the tip of Jon's penis. She didn't know, but Jon was walking back to class with an erection, and it was rubbing painfully against his boxers.
I'm going to kill him, Karyn thought as the bell rang. She got a few strange stares as students walked past her, but nothing to indicate that they knew she had pissed herself. Once all the students were gone, she took advantage of the teacher's back being turned and sneaked out of the room, heading straight for the front doors of the school. She was going to go home and change, and then she was going to get revenge.
