Jake decided to meet Josh at a gym locker room; it seemed like the safest, most public place to meet a guy whose dick you shrunk and intended on shrinking even further.
Josh, a man used to wearing tight-fitting clothes to show himself off to the world, was in comically baggy clothing, hunched over and wearing sunglasses inside the locker room. Jake had to fight down a fit of laughter at the sight of this "big man" acting so timid.
"Hey-hey! Uh, J-Jake?" Josh tried to covertly motion to Jake to come over his direction, which only served to make a number of people in the locker room take extra notice of the man wearing layers of clothing and dark sunglasses in the locker room beckoning another man towards him. Jake rolled his eyes and headed over to Josh.
"Yeah, man, it's gotten --" Josh broke off for a moment and continued in a hushed tone "smaller. Again. Like, a lot smaller this time."
Jake, drinking in this moment, responded in an overly-loud tone, "dude, I'm not looking at your dick no matter how much you say it shrunk. I'm not into that kind of thing."
Strangely, Josh didn't seem to react to the fact that Jake was trying to openly humiliate him by announcing his problem to the room. Instead, he seemed to latch onto the fact that Jake didn't believe him, so Josh looped his thumbs around his waistband, and yanked down his pants, revealing what was essentially a fleshy acorn. His shaft had retracted fully, leaving just the head, about the same size as the first knuckle of his thumb.
Jake lost it. It was even smaller than he was expecting. Maybe a half of an inch at best.
"Hey, shut up, man. I-- I'm a grower."
"Dude, every guy is a grower. If that thing got ten times bigger, it would still be small."
This broke Josh, and his little nub retreated even further into him, making Jake howl with laughter all over again.
"Shut up, dude! I came to you for help!"
"Ok, ok. I'm sorry. That was mean of me. I think I know what your problem is."
"You do?!" The vague hint at a solution to his problem renewed Josh's dwindled hope and sense of self. Jake noted that Josh must really have tied his sense of self to his cock, as his little turtle-dick poked its head out of its shell at this news.
"Yeah," Jake said, trying to keep his poker face intact, "it's this rare medical condition called reverse puberty where a guy's body releases a series of hormones that cause parts of his body to shrivel back. It's like the body is retreating from a threat. It usually happens to guys who like lose a testicle or are horribly emasculated in some way. In some extreme cases, the guys will lose a couple inches of height or maybe an inch or two from their penis length. You must be the most extreme case ever!"
Josh was absolutely pale. "What-- how do you reverse it? How do you cure it?"
"Oh, that's the worst part, man. You don't. I mean, sometimes, with enough therapy and testosterone, people sometimes get another late-in-life growth spurt. But that's really rare, and you'd have to be really desperate to use that much testoster--"
"Shit! Ok! So I just, like, need to take some steroids and this will fix itself!"
Jake couldn't believe his luck. Not only had Josh bought his bullshit, but he started filling in the gaps for Jake.
"Hey, listen, I gotta go, Josh. I'm already late." Jake punctuated this by "checking" his watch, which read "5.9" as he pointed it to Josh. Jake smirked a little as he clicked the "v" button until the number read "5.0"