"I guess you were right, Bubble, there was a sequel!" said Pinkie Pie. They were in Sugarcube Corner, baking cookies. Pinkie spoke to Bubble as they both rolled out the yellow dough and cut it, placing the little round cookies onto the pans. "Just in time for my birthday, too!" exclaimed Bubble, that's what they were baking for. "I'll go and get the sprinkles for the… WHOA!" Pinkie said just before something that hadn't happened in over 25 years happened: she shook up and down like there was some sort of earthquake. Bubble, knowing what this meant, asked worriedly, "What's the doozy going to be this time?" "I don't know, Bubble," said Pinkie, equally worried, "I don't know…"
Suddenly a small gray zipper appeared out of nowhere. "Hello?" asked a high but notably male voice. The zipper unzipped, and out jumped a pink stallion with a magenta mane that looked notably like Pinkie's but shorter. "Hi…" said Pinkie, confused, "Who are you?" She was confused for good reason, she didn't know anypony but her and Bubble could do that. And Bubble hadn't yet learned the zipper technique yet. "Bubble Berry," he said, "But that's not the point. I need your help. My universe is in grave peril, Irritum and his armies have come through my city already and are taking over Equestria." "Who is Irritum?" asked Pinkie. "His armies are comprised of dark creatures that feed off of creativity. They took Solaris and Apollo," he pointed to the crown on his head that was incredibly similar to Princess Celestia's, he didn't seem at all accustomed to wearing it and it was a bit big, "And our entire world has been in complete darkness for a long time. Almost two weeks." "Solaris and Apollo are their versions of Celestia and Luna, respectively, everypony here has a gender swapped counterpart there," said Pinkie, informing Bubble Gum, "I was there once when I was a filly. I was messing around with the fourth wall and stuff… so yeah."
Just then Twilight walked in. "Pinkie? I need you to…" started Twilight, who immediately had a double take when she saw Bubble Berry, "Who's this?" "He's the king-for-now of a world in jeopardy and his world, which is just like ours but everypony is the opposite gender, is being overtaken by creativity-eating dark creatures led by a pony-like thing who calls himself Irritum and it's been dark there for two weeks," said Pinkie, "His name's Bubble Berry. But don't mind him, what can I do for you, Twilight?" "I was going to ask if you could make some gemstone cupcakes for Spike and set them out for the party," said Twilight, "But I see that we've got a more pressing matter at hoof." "I think I recognize you from somewhere…" said Berry, looking Twilight over, "You look an awful lot like a friend of mine…" said Berry, "and from what I've seen… let me guess. Prince… or should I say, Princess… Dusk Shine?"
"No," said Twilight, "But I think I recognize that name from somewhere. Nonetheless, my name is Princess Twilight Sparkle." Berry's eyes widened when he heard that. He immediately said, "Come with me." "Wait a minute, you're Pinkie's counterpart, aren't you?" asked Twilight. Berry nodded, "I think so. Most likely, anyways. I don't know." He was covered head to hoof in fur lined clothing, his fluffy tail poking through and a little bit of his forelock, not much else. His face was the only part that wasn't covered in some way or another. "How'd you get here?" asked Twilight. "You know that portal that usually leads to the human world?" asked Pinkie, "10 moons after it closes, it opens again into their world. It closes another 10 moons later." "How long have we got left?" asked Twilight. "9 moons until the portal closes," said Berry, "6 until my world is dead."
"I'm assuming you got all the way over here from the Crystal Empire by bending the time-space continuum?" asked Twilight. Berry nodded. "Can you get everypony else back there via the same methods?" said Twilight, "I'll just teleport myself. We'll rendezvous at the portal entrance."