Ethan was thinking about what to do, he wanted to do something subtle but not too much, so he can see it easily. While he was thinking, he was rubbing his newly got foreskin and he got an idea. He took his phone and typed on the app. Then he hit apply and watched through his window if reality has changed.
Two girls passed by, then an old lady and finally a few cats. What happened to the boys? He wondered, he didn't vanish them, he just... Wait, one guy was coming. He looked carefully until he was close enough for Ethan to notice if he was affected by his change. At first, he looked like any other guy on his campus, and Ethan was getting disappointed until he turned around and... nothing. He can't believe it, the app can't make global changes...
The guy sat on a bench in front of Ethan's window, but Ethan didn't care about it. He was looking at his phone figuring out if somehow he can make his change to happen. After searching through the configuration window, he found out that the program can affect a limited area... That's sounds lame for a magic created app, but he can't do anything about it. So, he scanned the area and noticed that his last change had already changed someone, in fact, it was still active and it was affecting every guy on its radio.
He immediately ran to the window to look for the guy once again and he immediately noticed that something had already changed on him.