Prompt from dp-marvel94: I really loved your last prompt fill, Reflection. I can't even describe what emotions it made me feel. Now I'm really curious about a twin au, something set on the other side of the mirror so to speak. I'd love to see your take on something like that.

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If you told the Fenton twins they enabled each other, Danny would tell you that's what twins were for, and Andy would say at least they weren't as bad as their parents.

Although the veracity of the first statement was questionable, the second was certainly true. This is why space and astronomy related paraphernalia was limited to the twins' room and pranks only happened a few times a year, while the elder Fentons' ghost hunting gear infested the entire building and spilled out into the yard and a few select public places around town and ghost hunting was a year-round endeavor.

The Fenton children usually responded by doing their best to ignore everything related to ghosts. Usually. Today, that had been a little bit difficult. Today was the day of their parents' greatest triumph!

Except it wasn't. The portal-

"Andy, are you narrating this?"

"So what if I am?" He adjusted the camera to zoom in on his brother's disgruntled face. "You want to go to space, I want to make movies about space. And you've got to admit, the lab does look like the set of a cool SF show."

Danny rolled his eyes. "Sure, except the fake science projects on a set aren't going to come explode on you-"

"Well, actually-"

"That's the exception, not the rule-"

"But it still happened!"

"Ugh, you're impossible. What time is it?"

"According to the camera clock... one fourty-six in the morning."

Danny laughed. "Are you ever going to switch it so it's right?"

"Signs point to no. Hey, I have an idea. I dare you to go in and check it out~"

"Um. No. I don't know how to tell you this, but I'm not dying for your home movie. I'm going to go wait for Sam and Tucker upstairs."

"Come on!" called Andy after Danny. "I'll go with you if you're scared!"

The lab door shut.

"Tch," grumbled Andy. "Whatever." He thumbed the power switch.

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"And here's the boring lab full of stuff that doesn't work!" said Danny loudly, spreading his hands in presentation. "Can we go back upstairs now?"

"Boring? Just look at all this tech! This would make a great set for a TV show," said Tucker.

"See? See?" said Andy, excitedly. "That's what I said, too. We really are true friends."

"Think your parents would let us use it for an amateur film?" asked Tucker.

"Maybe if they ever 'gave up the ghost,'" said Danny, with air quotes. "Which they aren't. Ever."

"I don't know, Danny, they seemed pretty down after the portal didn't work."

They turned towards the dark, empty hole in the wall.

"Yeah..." said Danny. "They did look kind of sad..."

"Maybe you guys can do something with it," said Sam, adjusting her camera settings to take a picture.

"Sam," complained Andy fiddling with his camera, "stop it, you're messing with my camera brightness..."

Sam stuck out her tongue.

"What do you think we could do?"

"I don't know," said Sam. "Didn't you guys find some wiring issue with that other thing they made? Something silly they overlooked or something?"

"Yeah, that was ages ago and way simpler than this," said Danny.

"I don't know, I think she has a point," said Andy.

"Dare you two to go in," said Sam.

"True frien- Wait, two?"

"Yeah, two heads are better than one. And make for a cooler picture. We could make, like, movie poster mockups or something. Plus, Danny, haven't you ever wondered if there really is another world over there? You could be like an astronaut."

"Ooh, yeah, good point," said Andy. "Do you think we should wear the hazmat?"

"Do I think we should wear protective gear while messing with dangerous lab equipment?"

"Good point, but I was talking about for the picture," said Andy, walking over to the cabinet. "Which one of these is yours and which is mine?"

"Doesn't matter, they're identical," said Danny, leaning over his shoulder and pulling one out. He let it unfold. "I changed my mind, you can have the one with Dad's face."

"It's just a sticker, weirdo." Andy pulled it off. "Ugh, one second... Do you ever wish you had another set of arms...?" He put the camera down.

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Andy turned the camera back on. "Okay, here we go! Into the portal! To the stars!"

"Or the Ghost Zone, according to Mom and Dad."

"Yep, yep, go on, explore the supposed doorway to the afterlife," said Sam.

"That isn't very sci-fi of you, Sam," said Tucker. He was promptly elbowed.

"Give me some poses!" she said, snapping pictures.

"I thought we were supposed to be looking for what's wrong with the portal," said Danny.

"Come on, it isn't as if you believe in ghosts anyway," said Andy, nudging Danny.

Danny, scowling, took a step away from him and tripped on a wire. He caught himself on the wall and-

Click.

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"The rest of the video is completely fried," said Tucker. "Should we keep it, or...?"

"Delete it," said Danny.

"Keep it," said Andy.

"I'm getting some mixed messages here," said Tucker.

"I think," said Andy, "that it would be a good idea to have a way to prove we are who we say we are."

"And it has nothing to do with wanting to preserve your camera work?"

"I wouldn't say nothing."