A.N: As always, I don't own anything. This fic was written as a response to a writing prompt and was partly inspired by Sigyn Silica's "The Invasion of Tiny Lokis".

"Thor! Thor! Wake up! It's morning now, and you promised that you would help me get back at Sif for the prank she played on me!" Small fists pummeled the unfortunate eight-year-old boy, who had been peacefully sleeping.

"I said I'd help today, not first thing in the morning!" Thor whined, cracking one eye open to see Loki bouncing up and down on his bed.

"But now that you're awake, you can help me!" his little brother said.

"Fine! I'm coming. Just leave or something. I'll join you soon," Thor said with a yawn.

"Okay!" Loki chirped. As soon as he bounded out of the room, Thor curled up and almost immediately fell asleep again.

"Thor! Get up! You promised!" Loki's voice hollered in his ear – wait, was that two voices?

Thor sat up with a yelp and then stared. Five Lokis were now bouncing around him and clamoring for him to get up! "What…what's going on?! How did you do that?" he asked, now fully awake.

One of the Lokis shrugged. "I don't know. I needed reinforcements, so I got some. Now will you get up?" he said, giving Thor his biggest puppy eyes.

Thor rolled his eyes. The day had barely begun, and already it was the weirdest day in his life. Not even his brother's discovery that he could shapeshift the other day topped this. "Sure, whatever," he grumbled. The Lokis cheered, and left the room to get breakfast.

"Aren't you going to tell Mother about this?" Thor asked about an hour later. Breakfast had been a stressful affair, especially since he and the lead Loki had to quickly find a place to hide rest of the Lokis, who didn't want their presence to be known just yet but, at the same time, were of the opinion that it would be most amusing to pop up in random places just to confuse everyone.

"Yeah, eventually," said lead Loki carelessly.

"But I have an AWESOME prank idea!" another Loki shouted.

"Great! What is it?" the rest of the Lokis asked.

Poor Thor sighed as the clones of his brother put their heads together and began collaborating. Knowing how forgetful his little brother could be when he started making plans, especially mischievous ones, he would most likely be stuck with the multiple Lokis for the rest of the day if he was lucky. He began inching away from the little group to go find his mother when a chorus of voices called, "Hey! Where are you going? You need to help us with our plan!"

Oh bother. "Well, what do I need to do?" Thor asked, hiding his annoyance as well as he could.

"Since you're really good friends with Sif, we want you to distract her. Then we'll sneak up on her!" one Loki explained.

Thor considered the idea. "Ok. Sounds like a good idea. Let's go find her," he said.

Thor easily found Sif tending to her small assortment of potted plants.

"Hi Sif!" he said cheerily, trying to look like he knew absolutely nothing about the gaggle of Lokis who were hiding behind a wall and trying their best not to snicker.

"Hi! Where's your brother" Sif asked.

"Oh, he's…busy right now. Anyway, I found a cool new river yesterday. Do you want to go swimming?" Thor said.

"Sure, when I'm done watering these. Mother's herbs are not doing so well, and she'll be sad if – HEY!," the girl shrieked, dropping her watering can as the lead Loki tackled her from behind and began tickling her mercilessly.

"That was for putting the worm in my bed!" Loki said.

"It…wasn't…a…worm…it…was…a…baby…snake!" Sif gasped between laughter.

Loki gasped. "Did you hear that, men? She stuck a SNAKE in my bed, and I sat on it too!" he said.

"What?! CHARGE!"

With fierce battle cries, the rest of the clones emerged from their hiding places and descended on the hapless girl.

"All right! All right! We're even!" Sif squealed.

The Lokis stood up smugly. "Wait, why are there five of you, Loki?" the girl asked, finally registering the fact that there were more than one in the vicinity.

"I don't know how I did it. I'm going to ask Mother," Loki said.

"You need to ask her right away. No offence, but I like it when there's only one of you," Sif said, "And you, Thor, you owe me a trip to the new river for helping him."