Jake quickly walked out of the bathroom and made a beeline for the exit, ignoring the new sensation of his privates bouncing around. Their new weight was extremely noticeable as his briefs struggled to hold back his endowment.
Jake managed to walk home without incident, though he did get quite a few stares. Embarrassed, Jake just walked as fast as he could. Eventually he made it home and collapsed onto his couch with relief.
As he relaxed for a moment after speedwalking home, he admired the fairly large hump in his shorts when he sat down. Jake's cock was actually so large that it forced his legs apart slightly. His mom hated manspreading, but Jake couldn't close his legs all the way even if he wanted to.
Which reminded him... quickly pulling out his phone, Jake restarted it. Maybe restarting it would fix the glitch, he hoped. After a tense few seconds, the phone's boot screen disappeared and his app grid appeared. Launching the cock adjuster app, Jake was relieved to see the sliders and measurements, still displaying the readout [Your maximum erect cock size is; 14.5 inches in length, and; 5.2 inches in girth.]
Testing his luck, Jake dragged the girth slider up and hit Apply. At first nothing happened, but then Jake felt his underwear tightening even more. Checking the app revealed that the readout had updated to [Your maximum erect cock size is; 14.5 inches in length, and; 10.4 inches in girth.]. The app was still working!
Suddenly, Jake heard the door open. His mom was home! He had to fix this quickly. He quickly slid the sliders back down without time to check their places, hit Apply and pulled his underwear up, missing the feeling of being well endowed as his junk shrank. Funnily enough though, he realized that he had grown so much in his underwear that he had stretched out a little pouch in the front.
Jake managed to get through family dinner without incident, after which he hurriedly rushed back upstairs under the pretense of doing homework. Once in his room, he locked the door and quickly pulled off his pants and his briefs. No wonder he had felt so small! He had actually shrunk his cock more than he had before, and it was now only around 2 inches soft. He groaned, then realized he still had the app.
As he launched it, the app beeped - "Free use of the adjust app is almost expired. One more change is allowed. Think carefully before hitting Apply as the demo will lock after this point". Jake paused. What size did he want to be for the rest of his life?
On one hand, he could go back to average, or even a little bit above average. No downside here, but also not exciting. Or he could go big. Be a porn star, be well endowed. Which option does he pick?