Hehey, Wings here. We're having a bit of problem with the Plot Device, so… expect non-sensical introductory chapters. Oh, by the way, this takes place after Portal 2 and the Cooperative Testing Initiative. That means that yes, this takes place during the Perpetual Testing Initiative timeline. So, before you, is the only universe where Cave Johnson and GlaDOS may speak to a same test subject. Brace yourselves for some science.
Chapter 2: Movin' Out
"Uuuh..." Papyrus woke up to find himself on a elevator that, for some reason, was moving to the sides. He also was wearing a Aperture Science tracksuit and the patented Long-Fall Boots instead of his common battle armor.
"Wh-What's this!? Where I am going!?"
But then, a buzzing sound echoed through.
"bzzzzzzt- Is this even on, Gre- bzzzzzzzzzzt- Is it on? Good, you just saved youself from being fired."
"What the-" But before Papyrus could complete his phrase, the voice spoke.
"*clears throat* Greetings, unknown creature! You have been selected for a special testing program: the Multiverse Testing Initiative!"
"What?" Papyrus asked.
"I'll break it down: We, the Aperture Science from Earth-34 (or at least as Greg says we're 34…) have decided to test on the unknown creatures of the multiverse, rather than dissecting them. We are managing these tests from afar with our intermediary, GlaDOS-2!"
"I rather prefer GlaDOS alone, thank you." The female voice interrupted.
"You! You're that voice!" Papyrus was completely overwhelmed by what was going on.
"Yeah, ahem, carrying on with the explanation, we've decided to test your biology and our test chambers at the same time! We're doing science so hard that we're making Black Mesa jealous."
Papyrus wasn't agreeing with this at all. Non. Zero. Nyet.
"Unfortunately" GlaDOS stated, "With someone of your characteristics, we're unable to make a copy of your brain without a vivisection. I'll personally ask you the favor of not dying until we consider appropiate."
Cave was still chatting with Greg. "C'mon, connect me to the video feed! *beep beep beep* That's be- Wait, we're testing with a skeleton?"
"I know" GlaDOS replied. "Spooky."
"Just… *sigh* Begin the tests. Cave Johnson out."
There was a few seconds of silence, and Papyrus was terrified to even talk. After a nice 20 seconds, GlaDOS decided to break the ice.
"I'm going to have fun with you. Lots and lots of fun."
That's the Chapter 2 for you, folks. Remember you can contact me at my DA, 1gn1s-lol, in case you have suggestions. Because my Plot Device is going to shut down anytime sooner.