Jim sighed as he scratched at his head. "Bro, you're better with computers than I am. You try to figure this out. I need a drink." Jim left Andy with the computer as he walked back into their apartment and into the kitchen. The place definitely looked like two young single men lived here. The common area wasn't filthy, but it obviously do with a little cleaning up. They couldn't let it get too bad, not with a rental.
Jim opened the fridge and pulled out a beer. He didn't care that it was only around noon, he needed a drink. This whole thing was weird. And the longer it lasted the more his memories were disappearing. He was becoming this twenty year old Jim. He popped the top on his beer and took a sip.
All of the sudden he felt a tingle in his shorts. He pulled the waistband of his shorts out just in time to see his already ample cock grow another inch, and even stranger watching his foreskin regrow slipping over the head. "Dude!" He hollered, heading back into his bedroom. "I told you to figure it out, not mess with me."
"I didn't." Andy said, peering in his own shorts. "I messed with me, but I think this thing has us linked now. Reality thinks we're identical, so we always are." His brother grinned like he was proud of himself. Jim had to admit the change was interesting, he always wondered in uncut was different in bed.
"So did the nipple change not take?" Andy asked, eyeing Jim's tank top.
"Nipple?" And then Jim noticed that both of his brother's nipples were pierced with silver barbells. "You can do that with this?" He asked shocked.
"Yeah, tattoos, too. I wanted to test something that we had to share and something that could be different between us to see what the program did." Andy was still pointedly looking at Jim's shirt, so he lifted it up. How had he not felt that? Right through his nipples were a pair of barbell piercings.
"Figured if it gave us the same haircut, body trim, and beard it might do that, too." Andy laughed a little, tweaking one of his pierced nipples with a grin. Jim did the same. He had to admit, something about it felt good. "One of us should try shaving, normally, see what happens."
"No way." Jim said. "This style works for us."
Andy just rolled his eyes and went into the bathroom. "We can always fix it with the program." He grabbed the clippers and was about to trim part of his beard. Instead he pulled his boxers down and methodically trimmed down his pubes, then looked at Jim expectantly.
Jim pulled his shorts out and looked down, shaking his head. He even reached down and gave the hairs a light tug. "Nope. Still bushy."
Andy nodded. "Okay! So any changes we make with the program gets both of us, but we can change on our own by normal means. Good to know. One last test, give me change we'll both want."
Jim arched an eyebrow at his twin, as if the answer wasn't completely obvious.
Andy held up his hands as he headed back to the computer, "Right, stupid of me to ask." Andy sat down, adding a few inches of muscle to their chests and arms. Jim just drank his beer as he watched Andy work. He clicked to finalize the changes and both brothers squirmed a little at the feeling of their muscles bulking up further. Jim was massaging one of his pecs, while Andy was giving a closer inspection of his arm, flexing it and feeling the bulging muscles. Then he looked in his boxers. "Grew back. Okay, so it resets us to completely identical if we make any changes. So, there you go, figured out. What do you think?"
Jim sipped his beer, looking at his brother and with a deadpan expression said, "I think I'm horny."
Andy shook his head, then uttered a, "Yeah, me too. I might have an idea for that."